Heroku compatibility and support scripts.

Procfile

@@ -0,0 +1 @@
+web: gunicorn hc.wsgi --log-file -

app.json

@@ -0,0 +1,42 @@
+{
+  "name": "healthchecks",
+  "website": "https://github.com/healthchecks/healthchecks",
+  "keywords": ["heroku", "cron", "devops", "python", "monitoring", "cron-jobs"],
+  "image": "heroku/python",
+  "addons": [
+    "heroku-postgresql:hobby-dev",
+    "mailgun:starter",
+    "scheduler:standard"
+  ],
+  "scripts": {
+    "postdeploy": "python manage.py migrate"
+  },
+  "env": {
+    "SITE_ROOT": {
+      "description": "Used to build fully qualified URLs for pings, and for use in emails and notifications. Enter your App Name defined above here.",
+      "value": "https://appname.herokuapp.com"
+    },
+    "PING_ROOT": {
+      "description": "Used to build fully qualified URLs for pings. Will fall-back to SITE_ROOT above if undefined.",
+      "required": false
+    },
+    "SITE_NAME": {
+      "description": "Used throughout the templates.",
+      "value": "My Monitoring Project"
+    },
+    "FROM_EMAIL": {
+      "description": "Email from address.",
+      "value": "noreply@example.com"
+    },
+    "PING_EMAIL_DOMAIN": {
+      "description": "Email domain used to received email pings.",
+      "value": "example.com"
+    },
+    "SECRET_KEY": {
+      "generator": "secret"
+    },
+    "ON_HEROKU": {
+      "value": "yes"
+    }
+  }
+}

bin/post_compile

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+# The post_compile hook is run by heroku-buildpack-python
+
+echo "-----> Custom post-compile hook"
+
+# Work around Heroku bug whereby pylibmc isn't available during
+# compile phase. See: https://github.com/heroku/heroku-buildpack-python/issues/57
+export MEMCACHE_SERVERS='' MEMCACHIER_SERVERS=''
+
+if [ -f bin/install_nodejs ]; then
+  echo "-----> Running install_nodejs"
+  chmod +x bin/install_nodejs
+  bin/install_nodejs
+
+  if [ -f bin/install_less ]; then
+    echo "-----> Running install_lessc"
+    chmod +x bin/install_less
+    bin/install_less
+  fi
+fi
+
+if [ -f bin/run_collectstatic ]; then
+  echo "-----> Running run_collectstatic"
+  chmod +x bin/run_collectstatic
+  bin/run_collectstatic
+fi
+
+if [ -f bin/run_compress ]; then
+  echo "-----> Running run_compress"
+  chmod +x bin/run_compress
+  bin/run_compress
+fi
+
+echo "-----> Post-compile done"

bin/run_compress

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+indent() {
+    RE="s/^/       /"
+    [ $(uname) == "Darwin" ] && sed -l "$RE" || sed -u "$RE"
+}
+
+MANAGE_FILE=$(find . -maxdepth 3 -type f -name 'manage.py' | head -1)
+MANAGE_FILE=${MANAGE_FILE:2}
+
+echo "-----> Compressing static files"
+python $MANAGE_FILE compress 2>&1 | indent
+
+echo

hc/heroku_settings.py

@@ -0,0 +1,65 @@
+import os
+PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+SITE_ROOT = os.getenv('SITE_ROOT', "https://my-monitoring-project.com")
+SITE_NAME = os.getenv('SITE_NAME', "My Monitoring Project")
+DEFAULT_FROM_EMAIL = os.getenv('FROM_EMAIL', "noreply@my-monitoring-project.com")
+PING_ENDPOINT = os.getenv('PING_ROOT', SITE_ROOT) + "/ping/"
+PING_EMAIL_DOMAIN = os.getenv('PING_EMAIL_DOMAIN', "example.com")
+
+import herokuify
+from herokuify.common import *
+from herokuify.mail.mailgun import *
+
+DATABASES = herokuify.get_db_config()
+
+DEBUG = False
+SECRET_KEY = os.getenv('SECRET_KEY', "---")
+
+# Allow all host headers
+ALLOWED_HOSTS = ['*']
+
+# Simplified static file serving.
+# https://warehouse.python.org/project/whitenoise/
+
+STATICFILES_STORAGE = 'whitenoise.django.GzipManifestStaticFilesStorage'
+
+import sys
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'formatters': {
+        'verbose': {
+            'format': "[%(asctime)s] %(levelname)s [%(name)s:%(lineno)s] %(message)s",
+            'datefmt': "%d/%b/%Y %H:%M:%S"
+        },
+        'simple': {
+            'format': '%(levelname)s %(message)s'
+        },
+    },
+    'handlers': {
+        'console': {
+            'level': 'DEBUG',
+            'class': 'logging.StreamHandler',
+            'formatter': 'verbose',
+            'stream': sys.stdout,
+        },
+    },
+    'loggers': {
+        'django': {
+            'handlers': ['console'],
+            'propagate': True,
+            'level': os.getenv('DJANGO_LOG_LEVEL', 'INFO'),
+        },
+        'django.request': {
+            'handlers': ['console'],
+            'level': 'ERROR',
+            'propagate': False,
+        },
+        'django.security': {
+            'handlers': ['console'],
+            'level': 'ERROR',
+            'propagate': False,
+        }
+    }
+}

hc/settings.py

@@ -193,5 +193,7 @@ def envint(s, default):
 
 if os.path.exists(os.path.join(BASE_DIR, "hc/local_settings.py")):
     from .local_settings import *
+elif ('ON_HEROKU' in os.environ or 'DYNO' in os.environ or 'STACK' in os.environ) and os.path.exists(os.path.join(BASE_DIR, "hc/heroku_settings.py")):
+    from .heroku_settings import *
 else:
     warnings.warn("local_settings.py not found, using defaults")

hc/wsgi.py

@@ -8,9 +8,10 @@
 """
 
 import os
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "hc.settings")
 
 from django.core.wsgi import get_wsgi_application
-
-os.environ.setdefault("DJANGO_SETTINGS_MODULE", "hc.settings")
+from whitenoise.django import DjangoWhiteNoise
 
 application = get_wsgi_application()
+application = DjangoWhiteNoise(application)