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<h1>Source code for analyzer.alerters</h1><div class="highlight"><pre>
<span></span><span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">from</span> <span class="nn">smtplib</span> <span class="kn">import</span> <span class="n">SMTP</span>
<span class="kn">import</span> <span class="nn">alerters</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">urllib2</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">urllib.request</span>
<span class="kn">import</span> <span class="nn">urllib.error</span>
<span class="kn">from</span> <span class="nn">requests.utils</span> <span class="kn">import</span> <span class="n">quote</span>
<span class="c1"># Added for graphs showing Redis data</span>
<span class="kn">import</span> <span class="nn">traceback</span>
<span class="kn">import</span> <span class="nn">redis</span>
<span class="kn">from</span> <span class="nn">msgpack</span> <span class="kn">import</span> <span class="n">Unpacker</span>
<span class="kn">import</span> <span class="nn">datetime</span> <span class="kn">as</span> <span class="nn">dt</span>
<span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="kn">as</span> <span class="nn">plt</span>
<span class="kn">from</span> <span class="nn">matplotlib.pylab</span> <span class="kn">import</span> <span class="n">rcParams</span>
<span class="kn">from</span> <span class="nn">matplotlib.dates</span> <span class="kn">import</span> <span class="n">DateFormatter</span>
<span class="kn">import</span> <span class="nn">io</span>
<span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span>
<span class="kn">import</span> <span class="nn">pandas</span> <span class="kn">as</span> <span class="nn">pd</span>
<span class="kn">import</span> <span class="nn">os.path</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">realpath</span><span class="p">(</span><span class="n">__file__</span><span class="p">)),</span> <span class="n">os</span><span class="o">.</span><span class="n">pardir</span><span class="p">))</span>
<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">__file__</span><span class="p">))</span>
<span class="n">python_version</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="k">if</span> <span class="n">python_version</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">email.MIMEMultipart</span> <span class="kn">import</span> <span class="n">MIMEMultipart</span>
<span class="kn">from</span> <span class="nn">email.MIMEText</span> <span class="kn">import</span> <span class="n">MIMEText</span>
<span class="kn">from</span> <span class="nn">email.MIMEImage</span> <span class="kn">import</span> <span class="n">MIMEImage</span>
<span class="k">if</span> <span class="n">python_version</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">email.mime.multipart</span> <span class="kn">import</span> <span class="n">MIMEMultipart</span>
<span class="kn">from</span> <span class="nn">email.mime.text</span> <span class="kn">import</span> <span class="n">MIMEText</span>
<span class="kn">from</span> <span class="nn">email.mime.image</span> <span class="kn">import</span> <span class="n">MIMEImage</span>
<span class="kn">import</span> <span class="nn">settings</span>
<span class="kn">import</span> <span class="nn">skyline_version</span>
<span class="n">skyline_app</span> <span class="o">=</span> <span class="s1">'analyzer'</span>
<span class="n">skyline_app_logger</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">Log'</span> <span class="o">%</span> <span class="n">skyline_app</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="n">skyline_app_logger</span><span class="p">)</span>
<span class="n">skyline_app_logfile</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">/</span><span class="si">%s</span><span class="s1">.log'</span> <span class="o">%</span> <span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LOG_PATH</span><span class="p">,</span> <span class="n">skyline_app</span><span class="p">)</span>
<span class="n">skyline_version</span> <span class="o">=</span> <span class="n">skyline_version</span><span class="o">.</span><span class="n">__absolute_version__</span>
<span class="sd">"""</span>
<span class="sd">Create any alerter you want here. The function will be invoked from trigger_alert.</span>
<span class="sd">Two arguments will be passed, both of them tuples: alert and metric.</span>
<span class="sd">alert: the tuple specified in your settings:</span>
<span class="sd"> alert[0]: The matched substring of the anomalous metric</span>
<span class="sd"> alert[1]: the name of the strategy being used to alert</span>
<span class="sd"> alert[2]: The timeout of the alert that was triggered</span>
<span class="sd">metric: information about the anomaly itself</span>
<span class="sd"> metric[0]: the anomalous value</span>
<span class="sd"> metric[1]: The full name of the anomalous metric</span>
<span class="sd">"""</span>
<span class="c1"># FULL_DURATION to hours so that analyzer surfaces the relevant timeseries data</span>
<span class="c1"># in the graph</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">full_duration_seconds</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">FULL_DURATION</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">full_duration_seconds</span> <span class="o">=</span> <span class="mi">86400</span>
<span class="n">full_duration_in_hours</span> <span class="o">=</span> <span class="n">full_duration_seconds</span> <span class="o">/</span> <span class="mi">60</span> <span class="o">/</span> <span class="mi">60</span>
<div class="viewcode-block" id="alert_smtp"><a class="viewcode-back" href="../../skyline.analyzer.html#analyzer.alerters.alert_smtp">[docs]</a><span class="k">def</span> <span class="nf">alert_smtp</span><span class="p">(</span><span class="n">alert</span><span class="p">,</span> <span class="n">metric</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Called by :func:`~trigger_alert` and sends an alert via smtp to the</span>
<span class="sd"> recipients that are configured for the metric.</span>
<span class="sd"> """</span>
<span class="n">LOCAL_DEBUG</span> <span class="o">=</span> <span class="bp">False</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="n">skyline_app_logger</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - sending smtp alert'</span><span class="p">)</span>
<span class="c1"># FULL_DURATION to hours so that analyzer surfaces the relevant timeseries data</span>
<span class="c1"># in the graph</span>
<span class="n">full_duration_in_hours</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">FULL_DURATION</span><span class="p">)</span> <span class="o">/</span> <span class="mi">3600</span>
<span class="c1"># For backwards compatibility</span>
<span class="k">if</span> <span class="s1">'@'</span> <span class="ow">in</span> <span class="n">alert</span><span class="p">[</span><span class="mi">1</span><span class="p">]:</span>
<span class="n">sender</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">ALERT_SENDER</span>
<span class="n">recipient</span> <span class="o">=</span> <span class="n">alert</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">sender</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">SMTP_OPTS</span><span class="p">[</span><span class="s1">'sender'</span><span class="p">]</span>
<span class="n">recipients</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">SMTP_OPTS</span><span class="p">[</span><span class="s1">'recipients'</span><span class="p">][</span><span class="n">alert</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
<span class="c1"># Backwards compatibility</span>
<span class="k">if</span> <span class="nb">type</span><span class="p">(</span><span class="n">recipients</span><span class="p">)</span> <span class="ow">is</span> <span class="nb">str</span><span class="p">:</span>
<span class="n">recipients</span> <span class="o">=</span> <span class="p">[</span><span class="n">recipients</span><span class="p">]</span>
<span class="n">unencoded_graph_title</span> <span class="o">=</span> <span class="s1">'Skyline Analyzer - ALERT at </span><span class="si">%s</span><span class="s1"> hours </span><span class="si">%s</span><span class="s1"> - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - unencoded_graph_title: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">unencoded_graph_title</span><span class="p">)</span>
<span class="n">graph_title_string</span> <span class="o">=</span> <span class="n">quote</span><span class="p">(</span><span class="n">unencoded_graph_title</span><span class="p">,</span> <span class="n">safe</span><span class="o">=</span><span class="s1">''</span><span class="p">)</span>
<span class="n">graph_title</span> <span class="o">=</span> <span class="s1">'&title=</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">graph_title_string</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PORT</span> <span class="o">!=</span> <span class="s1">''</span><span class="p">:</span>
<span class="n">link</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">://</span><span class="si">%s</span><span class="s1">:</span><span class="si">%s</span><span class="s1">/render/?from=-</span><span class="si">%s</span><span class="s1">hours&target=cactiStyle(</span><span class="si">%s</span><span class="s1">)</span><span class="si">%s%s</span><span class="s1">&colorList=orange'</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PROTOCOL</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_HOST</span><span class="p">,</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PORT</span><span class="p">,</span> <span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_GRAPH_SETTINGS</span><span class="p">,</span> <span class="n">graph_title</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">link</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">://</span><span class="si">%s</span><span class="s1">/render/?from=-</span><span class="si">%s</span><span class="s1">hours&target=cactiStyle(</span><span class="si">%s</span><span class="s1">)</span><span class="si">%s%s</span><span class="s1">&colorList=orange'</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PROTOCOL</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_HOST</span><span class="p">,</span>
<span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_GRAPH_SETTINGS</span><span class="p">,</span>
<span class="n">graph_title</span><span class="p">)</span>
<span class="n">content_id</span> <span class="o">=</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">image_data</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">SMTP_OPTS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'embed-images'</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">image_data</span> <span class="o">=</span> <span class="n">urllib2</span><span class="o">.</span><span class="n">urlopen</span><span class="p">(</span><span class="n">link</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - image data OK'</span><span class="p">)</span>
<span class="k">except</span> <span class="n">urllib2</span><span class="o">.</span><span class="n">URLError</span><span class="p">:</span>
<span class="n">image_data</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - image data None'</span><span class="p">)</span>
<span class="c1"># If we failed to get the image or if it was explicitly disabled,</span>
<span class="c1"># use the image URL instead of the content.</span>
<span class="k">if</span> <span class="n">image_data</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">img_tag</span> <span class="o">=</span> <span class="s1">'<img src="</span><span class="si">%s</span><span class="s1">"/>'</span> <span class="o">%</span> <span class="n">link</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">img_tag</span> <span class="o">=</span> <span class="s1">'<img src="cid:</span><span class="si">%s</span><span class="s1">"/>'</span> <span class="o">%</span> <span class="n">content_id</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - img_tag: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">img_tag</span><span class="p">)</span>
<span class="n">redis_image_data</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">plot_redis_data</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">PLOT_REDIS_DATA</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">plot_redis_data</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">SMTP_OPTS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'embed-images'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">plot_redis_data</span><span class="p">:</span>
<span class="c1"># Create graph from Redis data</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">REDIS_ALERTER_CONN</span> <span class="o">=</span> <span class="n">redis</span><span class="o">.</span><span class="n">StrictRedis</span><span class="p">(</span><span class="n">unix_socket_path</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">REDIS_SOCKET_PATH</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - redis connection failed'</span><span class="p">)</span>
<span class="n">redis_metric_key</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">FULL_NAMESPACE</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">raw_series</span> <span class="o">=</span> <span class="n">REDIS_ALERTER_CONN</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">redis_metric_key</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - raw_series: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="s1">'OK'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - raw_series: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="s1">'FAIL'</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">unpacker</span> <span class="o">=</span> <span class="n">Unpacker</span><span class="p">(</span><span class="n">use_list</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="n">unpacker</span><span class="o">.</span><span class="n">feed</span><span class="p">(</span><span class="n">raw_series</span><span class="p">)</span>
<span class="n">timeseries_x</span> <span class="o">=</span> <span class="p">[</span><span class="nb">float</span><span class="p">(</span><span class="n">item</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">unpacker</span><span class="p">]</span>
<span class="n">unpacker</span> <span class="o">=</span> <span class="n">Unpacker</span><span class="p">(</span><span class="n">use_list</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="n">unpacker</span><span class="o">.</span><span class="n">feed</span><span class="p">(</span><span class="n">raw_series</span><span class="p">)</span>
<span class="n">timeseries_y</span> <span class="o">=</span> <span class="p">[</span><span class="n">item</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">unpacker</span><span class="p">]</span>
<span class="n">unpacker</span> <span class="o">=</span> <span class="n">Unpacker</span><span class="p">(</span><span class="n">use_list</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
<span class="n">unpacker</span><span class="o">.</span><span class="n">feed</span><span class="p">(</span><span class="n">raw_series</span><span class="p">)</span>
<span class="n">timeseries</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">unpacker</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - unpack timeseries failed'</span><span class="p">)</span>
<span class="n">timeseries</span> <span class="o">=</span> <span class="bp">None</span>
<span class="n">pd_series_values</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">if</span> <span class="n">timeseries</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">values</span> <span class="o">=</span> <span class="n">pd</span><span class="o">.</span><span class="n">Series</span><span class="p">([</span><span class="n">x</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">timeseries</span><span class="p">])</span>
<span class="c1"># Because the truth value of a Series is ambiguous</span>
<span class="n">pd_series_values</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - pandas value series on timeseries failed'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">pd_series_values</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">array_median</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">median</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - values median: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">array_median</span><span class="p">))</span>
<span class="n">array_amax</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">amax</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - array_amax: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">array_amax</span><span class="p">))</span>
<span class="n">array_amin</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">amin</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - array_amin: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">array_amin</span><span class="p">))</span>
<span class="n">mean</span> <span class="o">=</span> <span class="n">values</span><span class="o">.</span><span class="n">mean</span><span class="p">()</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - mean: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">mean</span><span class="p">))</span>
<span class="n">stdDev</span> <span class="o">=</span> <span class="n">values</span><span class="o">.</span><span class="n">std</span><span class="p">()</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - stdDev: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">stdDev</span><span class="p">))</span>
<span class="n">sigma3</span> <span class="o">=</span> <span class="mi">3</span> <span class="o">*</span> <span class="n">stdDev</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - sigma3: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">sigma3</span><span class="p">))</span>
<span class="n">sigma3_series</span> <span class="o">=</span> <span class="p">[</span><span class="n">sigma3</span><span class="p">]</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="n">sigma3_upper_bound</span> <span class="o">=</span> <span class="n">mean</span> <span class="o">+</span> <span class="n">sigma3</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">sigma3_lower_bound</span> <span class="o">=</span> <span class="n">mean</span> <span class="o">-</span> <span class="n">sigma3</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">sigma3_lower_bound</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">sigma3_upper_series</span> <span class="o">=</span> <span class="p">[</span><span class="n">sigma3_upper_bound</span><span class="p">]</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="n">sigma3_lower_series</span> <span class="o">=</span> <span class="p">[</span><span class="n">sigma3_lower_bound</span><span class="p">]</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="n">amax_series</span> <span class="o">=</span> <span class="p">[</span><span class="n">array_amax</span><span class="p">]</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="n">amin_series</span> <span class="o">=</span> <span class="p">[</span><span class="n">array_amin</span><span class="p">]</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="n">mean_series</span> <span class="o">=</span> <span class="p">[</span><span class="n">mean</span><span class="p">]</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - numpy ops on series failed'</span><span class="p">)</span>
<span class="n">mean_series</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">if</span> <span class="n">mean_series</span><span class="p">:</span>
<span class="n">graph_title</span> <span class="o">=</span> <span class="s1">'Skyline Analyzer - ALERT - at </span><span class="si">%s</span><span class="s1"> hours - Redis data</span><span class="se">\n</span><span class="si">%s</span><span class="s1"> - anomalous value: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="k">if</span> <span class="n">python_version</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="n">buf</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">StringIO</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">buf</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">()</span>
<span class="c1"># Too big</span>
<span class="c1"># rcParams['figure.figsize'] = 12, 6</span>
<span class="n">rcParams</span><span class="p">[</span><span class="s1">'figure.figsize'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">4</span>
<span class="k">try</span><span class="p">:</span>
<span class="c1"># fig = plt.figure()</span>
<span class="n">fig</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="n">frameon</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_title</span><span class="p">(</span><span class="n">graph_title</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="s1">'small'</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_axis_bgcolor</span><span class="p">(</span><span class="s1">'black'</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">datetimes</span> <span class="o">=</span> <span class="p">[</span><span class="n">dt</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">utcfromtimestamp</span><span class="p">(</span><span class="n">ts</span><span class="p">)</span> <span class="k">for</span> <span class="n">ts</span> <span class="ow">in</span> <span class="n">timeseries_x</span><span class="p">]</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - datetimes: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="s1">'OK'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - datetimes: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="s1">'FAIL'</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">xticks</span><span class="p">(</span><span class="n">rotation</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">horizontalalignment</span><span class="o">=</span><span class="s1">'center'</span><span class="p">)</span>
<span class="n">xfmt</span> <span class="o">=</span> <span class="n">DateFormatter</span><span class="p">(</span><span class="s1">'%a %H:%M'</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">gca</span><span class="p">()</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_major_formatter</span><span class="p">(</span><span class="n">xfmt</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_major_formatter</span><span class="p">(</span><span class="n">xfmt</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">datetimes</span><span class="p">,</span> <span class="n">timeseries_y</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'orange'</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mf">0.6</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">3</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">tick_params</span><span class="p">(</span><span class="n">axis</span><span class="o">=</span><span class="s1">'both'</span><span class="p">,</span> <span class="n">labelsize</span><span class="o">=</span><span class="s1">'xx-small'</span><span class="p">)</span>
<span class="n">max_value_label</span> <span class="o">=</span> <span class="s1">'max - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">array_amax</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">datetimes</span><span class="p">,</span> <span class="n">amax_series</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="n">max_value_label</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'m'</span><span class="p">,</span> <span class="n">ls</span><span class="o">=</span><span class="s1">'--'</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
<span class="n">min_value_label</span> <span class="o">=</span> <span class="s1">'min - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">array_amin</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">datetimes</span><span class="p">,</span> <span class="n">amin_series</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="n">min_value_label</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'b'</span><span class="p">,</span> <span class="n">ls</span><span class="o">=</span><span class="s1">'--'</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
<span class="n">mean_value_label</span> <span class="o">=</span> <span class="s1">'mean - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">mean</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">datetimes</span><span class="p">,</span> <span class="n">mean_series</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mf">1.5</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="n">mean_value_label</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'g'</span><span class="p">,</span> <span class="n">ls</span><span class="o">=</span><span class="s1">'--'</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
<span class="n">sigma3_text</span> <span class="o">=</span> <span class="p">(</span><span class="s1">r'3$\sigma$'</span><span class="p">)</span>
<span class="n">sigma3_label</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1"> - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">sigma3_text</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">sigma3</span><span class="p">))</span>
<span class="n">sigma3_upper_label</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1"> upper - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">sigma3_text</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">sigma3_upper_bound</span><span class="p">))</span>
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">datetimes</span><span class="p">,</span> <span class="n">sigma3_upper_series</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="n">sigma3_upper_label</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'r'</span><span class="p">,</span> <span class="n">ls</span><span class="o">=</span><span class="s1">'solid'</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
<span class="k">if</span> <span class="n">sigma3_lower_bound</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
<span class="n">sigma3_lower_label</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1"> lower - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">sigma3_text</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">sigma3_lower_bound</span><span class="p">))</span>
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">datetimes</span><span class="p">,</span> <span class="n">sigma3_lower_series</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="n">sigma3_lower_label</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'r'</span><span class="p">,</span> <span class="n">ls</span><span class="o">=</span><span class="s1">'solid'</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">get_yaxis</span><span class="p">()</span><span class="o">.</span><span class="n">get_major_formatter</span><span class="p">()</span><span class="o">.</span><span class="n">set_useOffset</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">get_yaxis</span><span class="p">()</span><span class="o">.</span><span class="n">get_major_formatter</span><span class="p">()</span><span class="o">.</span><span class="n">set_scientific</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
<span class="c1"># Shrink current axis's height by 10% on the bottom</span>
<span class="n">box</span> <span class="o">=</span> <span class="n">ax</span><span class="o">.</span><span class="n">get_position</span><span class="p">()</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_position</span><span class="p">([</span><span class="n">box</span><span class="o">.</span><span class="n">x0</span><span class="p">,</span> <span class="n">box</span><span class="o">.</span><span class="n">y0</span> <span class="o">+</span> <span class="n">box</span><span class="o">.</span><span class="n">height</span> <span class="o">*</span> <span class="mf">0.1</span><span class="p">,</span>
<span class="n">box</span><span class="o">.</span><span class="n">width</span><span class="p">,</span> <span class="n">box</span><span class="o">.</span><span class="n">height</span> <span class="o">*</span> <span class="mf">0.9</span><span class="p">])</span>
<span class="c1"># Put a legend below current axis</span>
<span class="n">ax</span><span class="o">.</span><span class="n">legend</span><span class="p">(</span><span class="n">loc</span><span class="o">=</span><span class="s1">'upper center'</span><span class="p">,</span> <span class="n">bbox_to_anchor</span><span class="o">=</span><span class="p">(</span><span class="mf">0.5</span><span class="p">,</span> <span class="o">-</span><span class="mf">0.05</span><span class="p">),</span>
<span class="n">fancybox</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">shadow</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">ncol</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="s1">'x-small'</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">rc</span><span class="p">(</span><span class="s1">'lines'</span><span class="p">,</span> <span class="n">lw</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'w'</span><span class="p">)</span>
<span class="n">plt</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="n">b</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">which</span><span class="o">=</span><span class="s1">'both'</span><span class="p">,</span> <span class="n">axis</span><span class="o">=</span><span class="s1">'both'</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s1">'lightgray'</span><span class="p">,</span>
<span class="n">linestyle</span><span class="o">=</span><span class="s1">'solid'</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">linewidth</span><span class="o">=</span><span class="mf">0.6</span><span class="p">)</span>
<span class="n">ax</span><span class="o">.</span><span class="n">set_axis_bgcolor</span><span class="p">(</span><span class="s1">'black'</span><span class="p">)</span>
<span class="n">rcParams</span><span class="p">[</span><span class="s1">'xtick.direction'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'out'</span>
<span class="n">rcParams</span><span class="p">[</span><span class="s1">'ytick.direction'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'out'</span>
<span class="n">ax</span><span class="o">.</span><span class="n">margins</span><span class="p">(</span><span class="n">y</span><span class="o">=.</span><span class="mo">02</span><span class="p">,</span> <span class="n">x</span><span class="o">=.</span><span class="mo">03</span><span class="p">)</span>
<span class="c1"># tight_layout removes the legend box</span>
<span class="c1"># fig.tight_layout()</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">plt</span><span class="o">.</span><span class="n">savefig</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s1">'png'</span><span class="p">)</span>
<span class="n">redis_graph_content_id</span> <span class="o">=</span> <span class="s1">'redis.</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">redis_image_data</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - savefig: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="s1">'OK'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - plt.savefig: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="s1">'FAIL'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - could not build plot'</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">traceback</span><span class="o">.</span><span class="n">format_exc</span><span class="p">())</span>
<span class="k">if</span> <span class="n">redis_image_data</span><span class="p">:</span>
<span class="n">redis_img_tag</span> <span class="o">=</span> <span class="s1">'<img src="cid:</span><span class="si">%s</span><span class="s1">"/>'</span> <span class="o">%</span> <span class="n">redis_graph_content_id</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - redis_img_tag: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">redis_img_tag</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">redis_img_tag</span> <span class="o">=</span> <span class="s1">'<img src="</span><span class="si">%s</span><span class="s1">"/>'</span> <span class="o">%</span> <span class="s1">'none'</span>
<span class="n">body</span> <span class="o">=</span> <span class="s1">'<h3><font color="#dd3023">Sky</font><font color="#6698FF">line</font><font color="black"> Analyzer alert</font></h3><br>'</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">metric: <b></span><span class="si">%s</span><span class="s1"></b></font><br>'</span> <span class="o">%</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">Anomalous value: </span><span class="si">%s</span><span class="s1"></font><br>'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">At hours: </span><span class="si">%s</span><span class="s1"></font><br>'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">full_duration_in_hours</span><span class="p">)</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">Next alert in: </span><span class="si">%s</span><span class="s1"> seconds</font><br>'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">alert</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="k">if</span> <span class="n">redis_image_data</span><span class="p">:</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">min: </span><span class="si">%s</span><span class="s1"> | max: </span><span class="si">%s</span><span class="s1"> | mean: </span><span class="si">%s</span><span class="s1"> <br>'</span> <span class="o">%</span> <span class="p">(</span>
<span class="nb">str</span><span class="p">(</span><span class="n">array_amin</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">array_amax</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">mean</span><span class="p">))</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'3-sigma: </span><span class="si">%s</span><span class="s1"> <br>'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">sigma3</span><span class="p">)</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'3-sigma upper bound: </span><span class="si">%s</span><span class="s1"> | 3-sigma lower bound: </span><span class="si">%s</span><span class="s1"> <br></font>'</span> <span class="o">%</span> <span class="p">(</span>
<span class="nb">str</span><span class="p">(</span><span class="n">sigma3_upper_bound</span><span class="p">),</span> <span class="nb">str</span><span class="p">(</span><span class="n">sigma3_lower_bound</span><span class="p">))</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<h3><font color="black">Redis data at FULL_DURATION</font></h3><br>'</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<div dir="ltr">:</span><span class="si">%s</span><span class="s1"><br></div>'</span> <span class="o">%</span> <span class="n">redis_img_tag</span>
<span class="k">if</span> <span class="n">image_data</span><span class="p">:</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<h3><font color="black">Graphite data at FULL_DURATION (may be aggregated)</font></h3>'</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<div dir="ltr"><a href="</span><span class="si">%s</span><span class="s1">"></span><span class="si">%s</span><span class="s1"></a><br></div><br>'</span> <span class="o">%</span> <span class="p">(</span><span class="n">link</span><span class="p">,</span> <span class="n">img_tag</span><span class="p">)</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">Clicking on the above graph will open to the Graphite graph with current data</font><br>'</span>
<span class="k">if</span> <span class="n">redis_image_data</span><span class="p">:</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<font color="black">To disable the Redis data graph view, set PLOT_REDIS_DATA to False in your settings.py, if the Graphite graph is sufficient for you,<br>'</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'however do note that will remove the 3-sigma and mean value too.</font>'</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<br>'</span>
<span class="n">body</span> <span class="o">+=</span> <span class="s1">'<div dir="ltr" align="right"><font color="#dd3023">Sky</font><font color="#6698FF">line</font><font color="black"> version :: </span><span class="si">%s</span><span class="s1"></font></div><br>'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">skyline_version</span><span class="p">)</span>
<span class="k">for</span> <span class="n">recipient</span> <span class="ow">in</span> <span class="n">recipients</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">msg</span> <span class="o">=</span> <span class="n">MIMEMultipart</span><span class="p">(</span><span class="s1">'alternative'</span><span class="p">)</span>
<span class="n">msg</span><span class="p">[</span><span class="s1">'Subject'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'[Skyline alert] - Analyzer ALERT - '</span> <span class="o">+</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">msg</span><span class="p">[</span><span class="s1">'From'</span><span class="p">]</span> <span class="o">=</span> <span class="n">sender</span>
<span class="n">msg</span><span class="p">[</span><span class="s1">'To'</span><span class="p">]</span> <span class="o">=</span> <span class="n">recipient</span>
<span class="n">msg</span><span class="o">.</span><span class="n">attach</span><span class="p">(</span><span class="n">MIMEText</span><span class="p">(</span><span class="n">body</span><span class="p">,</span> <span class="s1">'html'</span><span class="p">))</span>
<span class="k">if</span> <span class="n">redis_image_data</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">buf</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">msg_plot_attachment</span> <span class="o">=</span> <span class="n">MIMEImage</span><span class="p">(</span><span class="n">buf</span><span class="o">.</span><span class="n">read</span><span class="p">())</span>
<span class="n">msg_plot_attachment</span><span class="o">.</span><span class="n">add_header</span><span class="p">(</span><span class="s1">'Content-ID'</span><span class="p">,</span> <span class="s1">'<</span><span class="si">%s</span><span class="s1">>'</span> <span class="o">%</span> <span class="n">redis_graph_content_id</span><span class="p">)</span>
<span class="n">msg</span><span class="o">.</span><span class="n">attach</span><span class="p">(</span><span class="n">msg_plot_attachment</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - msg_plot_attachment - redis data done'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - msg_plot_attachment'</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">traceback</span><span class="o">.</span><span class="n">format_exc</span><span class="p">())</span>
<span class="k">if</span> <span class="n">image_data</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">msg_attachment</span> <span class="o">=</span> <span class="n">MIMEImage</span><span class="p">(</span><span class="n">image_data</span><span class="p">)</span>
<span class="n">msg_attachment</span><span class="o">.</span><span class="n">add_header</span><span class="p">(</span><span class="s1">'Content-ID'</span><span class="p">,</span> <span class="s1">'<</span><span class="si">%s</span><span class="s1">>'</span> <span class="o">%</span> <span class="n">content_id</span><span class="p">)</span>
<span class="n">msg</span><span class="o">.</span><span class="n">attach</span><span class="p">(</span><span class="n">msg_attachment</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - msg_attachment - Graphite img source done'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - msg_attachment'</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">traceback</span><span class="o">.</span><span class="n">format_exc</span><span class="p">())</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - could not attach'</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">traceback</span><span class="o">.</span><span class="n">format_exc</span><span class="p">())</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">SMTP</span><span class="p">(</span><span class="s1">'127.0.0.1'</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">s</span><span class="o">.</span><span class="n">sendmail</span><span class="p">(</span><span class="n">sender</span><span class="p">,</span> <span class="n">recipient</span><span class="p">,</span> <span class="n">msg</span><span class="o">.</span><span class="n">as_string</span><span class="p">())</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">ENABLE_DEBUG</span> <span class="ow">or</span> <span class="n">LOCAL_DEBUG</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'debug :: alert_smtp - message sent to </span><span class="si">%s</span><span class="s1"> OK'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">recipient</span><span class="p">))</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'error :: alert_smtp - could not send email to </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">recipient</span><span class="p">))</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">traceback</span><span class="o">.</span><span class="n">format_exc</span><span class="p">())</span>
<span class="n">s</span><span class="o">.</span><span class="n">quit</span><span class="p">()</span></div>
<div class="viewcode-block" id="alert_pagerduty"><a class="viewcode-back" href="../../skyline.analyzer.html#analyzer.alerters.alert_pagerduty">[docs]</a><span class="k">def</span> <span class="nf">alert_pagerduty</span><span class="p">(</span><span class="n">alert</span><span class="p">,</span> <span class="n">metric</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Called by :func:`~trigger_alert` and sends an alert via PagerDuty</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">PAGERDUTY_ENABLED</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">pygerduty</span>
<span class="n">pager</span> <span class="o">=</span> <span class="n">pygerduty</span><span class="o">.</span><span class="n">PagerDuty</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">PAGERDUTY_OPTS</span><span class="p">[</span><span class="s1">'subdomain'</span><span class="p">],</span> <span class="n">settings</span><span class="o">.</span><span class="n">PAGERDUTY_OPTS</span><span class="p">[</span><span class="s1">'auth_token'</span><span class="p">])</span>
<span class="n">pager</span><span class="o">.</span><span class="n">trigger_incident</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">PAGERDUTY_OPTS</span><span class="p">[</span><span class="s1">'key'</span><span class="p">],</span> <span class="s2">"Anomalous metric: </span><span class="si">%s</span><span class="s2"> (value: </span><span class="si">%s</span><span class="s2">)"</span> <span class="o">%</span> <span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">]))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">pagerduty_not_enabled</span> <span class="o">=</span> <span class="bp">True</span></div>
<div class="viewcode-block" id="alert_hipchat"><a class="viewcode-back" href="../../skyline.analyzer.html#analyzer.alerters.alert_hipchat">[docs]</a><span class="k">def</span> <span class="nf">alert_hipchat</span><span class="p">(</span><span class="n">alert</span><span class="p">,</span> <span class="n">metric</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Called by :func:`~trigger_alert` and sends an alert the hipchat room that is</span>
<span class="sd"> configured in settings.py.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">HIPCHAT_ENABLED</span><span class="p">:</span>
<span class="n">sender</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">HIPCHAT_OPTS</span><span class="p">[</span><span class="s1">'sender'</span><span class="p">]</span>
<span class="kn">import</span> <span class="nn">hipchat</span>
<span class="n">hipster</span> <span class="o">=</span> <span class="n">hipchat</span><span class="o">.</span><span class="n">HipChat</span><span class="p">(</span><span class="n">token</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">HIPCHAT_OPTS</span><span class="p">[</span><span class="s1">'auth_token'</span><span class="p">])</span>
<span class="n">rooms</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">HIPCHAT_OPTS</span><span class="p">[</span><span class="s1">'rooms'</span><span class="p">][</span><span class="n">alert</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
<span class="n">unencoded_graph_title</span> <span class="o">=</span> <span class="s1">'Skyline Analyzer - ALERT at </span><span class="si">%s</span><span class="s1"> hours </span><span class="si">%s</span><span class="s1"> - </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">graph_title_string</span> <span class="o">=</span> <span class="n">quote</span><span class="p">(</span><span class="n">unencoded_graph_title</span><span class="p">,</span> <span class="n">safe</span><span class="o">=</span><span class="s1">''</span><span class="p">)</span>
<span class="n">graph_title</span> <span class="o">=</span> <span class="s1">'&title=</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">graph_title_string</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PORT</span> <span class="o">!=</span> <span class="s1">''</span><span class="p">:</span>
<span class="n">link</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">://</span><span class="si">%s</span><span class="s1">:</span><span class="si">%s</span><span class="s1">/render/?from=-</span><span class="si">%s</span><span class="s1">hours&target=cactiStyle(</span><span class="si">%s</span><span class="s1">)</span><span class="si">%s%s</span><span class="s1">&colorList=orange'</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PROTOCOL</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_HOST</span><span class="p">,</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PORT</span><span class="p">,</span> <span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_GRAPH_SETTINGS</span><span class="p">,</span> <span class="n">graph_title</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">link</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">://</span><span class="si">%s</span><span class="s1">/render/?from=-</span><span class="si">%s</span><span class="s1">hours&target=cactiStyle(</span><span class="si">%s</span><span class="s1">)</span><span class="si">%s%s</span><span class="s1">&colorList=orange'</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_PROTOCOL</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_HOST</span><span class="p">,</span>
<span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
<span class="n">settings</span><span class="o">.</span><span class="n">GRAPHITE_GRAPH_SETTINGS</span><span class="p">,</span> <span class="n">graph_title</span><span class="p">)</span>
<span class="n">embed_graph</span> <span class="o">=</span> <span class="s2">"<a href='"</span> <span class="o">+</span> <span class="n">link</span> <span class="o">+</span> <span class="s2">"'><img height='308' src='"</span> <span class="o">+</span> <span class="n">link</span> <span class="o">+</span> <span class="s2">"'>"</span> <span class="o">+</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="s2">"</a>"</span>
<span class="k">for</span> <span class="n">room</span> <span class="ow">in</span> <span class="n">rooms</span><span class="p">:</span>
<span class="n">message</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1"> - Analyzer - anomalous metric: </span><span class="si">%s</span><span class="s1"> (value: </span><span class="si">%s</span><span class="s1">) at </span><span class="si">%s</span><span class="s1"> hours </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">sender</span><span class="p">,</span> <span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">full_duration_in_hours</span><span class="p">,</span> <span class="n">embed_graph</span><span class="p">)</span>
<span class="n">hipchat_color</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">HIPCHAT_OPTS</span><span class="p">[</span><span class="s1">'color'</span><span class="p">]</span>
<span class="n">hipster</span><span class="o">.</span><span class="n">method</span><span class="p">(</span>
<span class="s1">'rooms/message'</span><span class="p">,</span> <span class="n">method</span><span class="o">=</span><span class="s1">'POST'</span><span class="p">,</span>
<span class="n">parameters</span><span class="o">=</span><span class="p">{</span><span class="s1">'room_id'</span><span class="p">:</span> <span class="n">room</span><span class="p">,</span> <span class="s1">'from'</span><span class="p">:</span> <span class="s1">'Skyline'</span><span class="p">,</span> <span class="s1">'color'</span><span class="p">:</span> <span class="n">hipchat_color</span><span class="p">,</span> <span class="s1">'message'</span><span class="p">:</span> <span class="n">message</span><span class="p">})</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">hipchat_not_enabled</span> <span class="o">=</span> <span class="bp">True</span></div>
<div class="viewcode-block" id="alert_syslog"><a class="viewcode-back" href="../../skyline.analyzer.html#analyzer.alerters.alert_syslog">[docs]</a><span class="k">def</span> <span class="nf">alert_syslog</span><span class="p">(</span><span class="n">alert</span><span class="p">,</span> <span class="n">metric</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Called by :func:`~trigger_alert` and log anomalies to syslog.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">SYSLOG_ENABLED</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">syslog</span>
<span class="n">syslog_ident</span> <span class="o">=</span> <span class="n">settings</span><span class="o">.</span><span class="n">SYSLOG_OPTS</span><span class="p">[</span><span class="s1">'ident'</span><span class="p">]</span>
<span class="n">message</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="s1">'Analyzer - Anomalous metric: </span><span class="si">%s</span><span class="s1"> (value: </span><span class="si">%s</span><span class="s1">)'</span> <span class="o">%</span> <span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">]))</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[:</span><span class="mi">2</span><span class="p">]</span> <span class="o">==</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">6</span><span class="p">):</span>
<span class="n">syslog</span><span class="o">.</span><span class="n">openlog</span><span class="p">(</span><span class="n">syslog_ident</span><span class="p">,</span> <span class="n">syslog</span><span class="o">.</span><span class="n">LOG_PID</span><span class="p">,</span> <span class="n">syslog</span><span class="o">.</span><span class="n">LOG_LOCAL4</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[:</span><span class="mi">2</span><span class="p">]</span> <span class="o">==</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">7</span><span class="p">):</span>
<span class="n">syslog</span><span class="o">.</span><span class="n">openlog</span><span class="p">(</span><span class="n">ident</span><span class="o">=</span><span class="s2">"skyline"</span><span class="p">,</span> <span class="n">logoption</span><span class="o">=</span><span class="n">syslog</span><span class="o">.</span><span class="n">LOG_PID</span><span class="p">,</span> <span class="n">facility</span><span class="o">=</span><span class="n">syslog</span><span class="o">.</span><span class="n">LOG_LOCAL4</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[:</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="p">(</span><span class="mi">3</span><span class="p">):</span>
<span class="n">syslog</span><span class="o">.</span><span class="n">openlog</span><span class="p">(</span><span class="n">ident</span><span class="o">=</span><span class="s2">"skyline"</span><span class="p">,</span> <span class="n">logoption</span><span class="o">=</span><span class="n">syslog</span><span class="o">.</span><span class="n">LOG_PID</span><span class="p">,</span> <span class="n">facility</span><span class="o">=</span><span class="n">syslog</span><span class="o">.</span><span class="n">LOG_LOCAL4</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">syslog</span><span class="o">.</span><span class="n">openlog</span><span class="p">(</span><span class="n">syslog_ident</span><span class="p">,</span> <span class="n">syslog</span><span class="o">.</span><span class="n">LOG_PID</span><span class="p">,</span> <span class="n">syslog</span><span class="o">.</span><span class="n">LOG_LOCAL4</span><span class="p">)</span>
<span class="n">syslog</span><span class="o">.</span><span class="n">syslog</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="n">message</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">syslog_not_enabled</span> <span class="o">=</span> <span class="bp">True</span></div>
<div class="viewcode-block" id="trigger_alert"><a class="viewcode-back" href="../../skyline.analyzer.html#analyzer.alerters.trigger_alert">[docs]</a><span class="k">def</span> <span class="nf">trigger_alert</span><span class="p">(</span><span class="n">alert</span><span class="p">,</span> <span class="n">metric</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Called by :class:`~skyline.skyline.Analyzer.run` to trigger an alert,</span>
<span class="sd"> Analyzer passes two arguments, both of them tuples. The alerting strategy</span>
<span class="sd"> is determined and the approriate alert def is then called and passed the</span>
<span class="sd"> tuples.</span>
<span class="sd"> :param alert:</span>
<span class="sd"> The alert tuple specified in settings.py.\n</span>
<span class="sd"> alert[0]: The matched substring of the anomalous metric\n</span>
<span class="sd"> alert[1]: the name of the strategy being used to alert\n</span>
<span class="sd"> alert[2]: The timeout of the alert that was triggered\n</span>
<span class="sd"> :param meric:</span>
<span class="sd"> The metric tuple.\n</span>
<span class="sd"> metric[0]: the anomalous value</span>
<span class="sd"> metric[1]: The full name of the anomalous metric</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="s1">'@'</span> <span class="ow">in</span> <span class="n">alert</span><span class="p">[</span><span class="mi">1</span><span class="p">]:</span>
<span class="n">strategy</span> <span class="o">=</span> <span class="s1">'alert_smtp'</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">strategy</span> <span class="o">=</span> <span class="s1">'alert_</span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">alert</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="nb">getattr</span><span class="p">(</span><span class="n">alerters</span><span class="p">,</span> <span class="n">strategy</span><span class="p">)(</span><span class="n">alert</span><span class="p">,</span> <span class="n">metric</span><span class="p">)</span></div>
</pre></div>
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