Add pushgateway service

ernestas-poskus · Sep 17, 2017 · 1cd0687 · 1cd0687
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commit 1cd0687
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Showing 11 changed files with 127 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -9,6 +9,7 @@ Playbook installs and manages services using systemd. Currently supported:
   - Prometheus
   - Node Exporter (collects metrics of host machine)
   - Alert manager
+  - Push gateway
 
 Playbook includes extensive configuration options check default/main.yml
 
@@ -360,6 +361,21 @@ prometheus_alert_manager_web__listen_address: ':9093'
 prometheus_alert_manager_web__route_prefix:
 # Prefix for the internal routes of web endpoints. Defaults to path of -web.external-url.
 
+# Pushgateway
+# https://github.com/prometheus/pushgateway
+
+prometheus_push_gateway_log__format:
+# If set use a syslog logger or JSON logging. Example: logger:syslog?appname=bob&local=7 or logger:stdout?json=true. Defaults to stderr.
+prometheus_push_gateway_log__level: 'info'
+# Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal].
+prometheus_push_gateway_persistence__file:
+# File to persist metrics. If empty, metrics are only kept in memory.
+prometheus_push_gateway_persistence__interval:
+# The minimum interval at which to write out the persistence file. (default 5m0s)
+prometheus_push_gateway_web__listen_address: ':9091'
+# Address to listen on for the web interface, API, and telemetry. (default ":9091")
+prometheus_push_gateway_web__telemetry_path: '/metrics'
+# Path under which to expose metrics. (default "/metrics")
 ```
 
 Dependencies

diff --git a/defaults/main.yml b/defaults/main.yml
@@ -4,6 +4,7 @@
 prometheus_install: true
 prometheus_node_exporter_install: true
 prometheus_alert_manager_install: true
+prometheus_push_gateway_install: false
 
 prometheus_owner: 'prometheus'
 prometheus_group: 'prometheus'
@@ -28,6 +29,9 @@ prometheus_node_exporter_version: '0.14.0'
 # Alert manager
 prometheus_alert_manager_version: '0.8.0'
 
+# Pushgateway
+prometheus_push_gateway_version: '0.4.0'
+
 # Prometheus
 # https://prometheus.io/docs/operating/configuration/
 
@@ -332,3 +336,18 @@ prometheus_alert_manager_web__listen_address: ':9093'
 prometheus_alert_manager_web__route_prefix:
 # Prefix for the internal routes of web endpoints. Defaults to path of -web.external-url.
 
+# Pushgateway
+# https://github.com/prometheus/pushgateway
+
+prometheus_push_gateway_log__format:
+# If set use a syslog logger or JSON logging. Example: logger:syslog?appname=bob&local=7 or logger:stdout?json=true. Defaults to stderr.
+prometheus_push_gateway_log__level: 'info'
+# Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal].
+prometheus_push_gateway_persistence__file:
+# File to persist metrics. If empty, metrics are only kept in memory.
+prometheus_push_gateway_persistence__interval:
+# The minimum interval at which to write out the persistence file. (default 5m0s)
+prometheus_push_gateway_web__listen_address: ':9091'
+# Address to listen on for the web interface, API, and telemetry. (default ":9091")
+prometheus_push_gateway_web__telemetry_path: '/metrics'
+# Path under which to expose metrics. (default "/metrics")
diff --git a/handlers/main.yml b/handlers/main.yml
@@ -30,3 +30,12 @@
 
 - name: start alertmanager
   service: name=alertmanager state=started
+
+- name: restart pushgateway
+  service: name=pushgateway state=restarted enabled=yes
+
+- name: stop pushgateway
+  service: name=pushgateway state=stopped
+
+- name: start pushgateway
+  service: name=pushgateway state=started
diff --git a/parse_config.rb b/parse_config.rb
@@ -1,7 +1,21 @@
 input = <<eos
+-log.format value
+If set use a syslog logger or JSON logging. Example: logger:syslog?appname=bob&local=7 or logger:stdout?json=true. Defaults to stderr.
+-log.level value
+Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal].
+-persistence.file string
+File to persist metrics. If empty, metrics are only kept in memory.
+-persistence.interval duration
+The minimum interval at which to write out the persistence file. (default 5m0s)
+-version
+Print version information.
+-web.listen-address string
+Address to listen on for the web interface, API, and telemetry. (default ":9091")
+-web.telemetry-path string
+Path under which to expose metrics. (default "/metrics")
 eos
 
-PREFIX = 'prometheus_alert_manager'
+PREFIX = 'prometheus_push_gateway'
 
 puts '############################################################'
 puts '# Auto generated'

diff --git a/tasks/install-push_gateway.yml b/tasks/install-push_gateway.yml
@@ -0,0 +1,16 @@
+- name: Download and extract Prometheus push gateway tarball
+  unarchive:
+    src: "{{ prometheus_push_gateway_tarball_url }}"
+    dest: "{{ prometheus_install_dir }}"
+    owner: "{{ prometheus_owner }}"
+    group: "{{ prometheus_group }}"
+    copy: no
+    creates: "{{ prometheus_install_dir }}/{{ prometheus_push_gateway_archive }}"
+
+- name: Install Prometheus push gateway systemd service
+  template:
+    src: push_gateway.service.j2
+    dest: /etc/systemd/system/pushgateway.service
+  notify:
+    - reload daemon
+    - restart pushgateway
diff --git a/tasks/main.yml b/tasks/main.yml
@@ -3,6 +3,7 @@
 - include_vars: 'nodeexporter.yml'
 - include_vars: 'prometheus.yml'
 - include_vars: 'alertmanager.yml'
+- include_vars: 'pushgateway.yml'
 
 - name: Create Prometheus group
   group:
@@ -52,3 +53,7 @@
 - name: Install Prometheus alert manager
   include: install-alert_manager.yml
   when: prometheus_alert_manager_install
+
+- name: Install Pushgateway
+  include: install-push_gateway.yml
+  when: prometheus_push_gateway_install
diff --git a/templates/push_gateway.service.j2 b/templates/push_gateway.service.j2
@@ -0,0 +1,20 @@
+# {{ansible_managed}}
+
+[Unit]
+Description=Prometheus alert manager service
+After=network.target
+Wants=network.target
+
+[Service]
+ExecStart={{ prometheus_install_dir }}/{{ prometheus_push_gateway_archive }}/pushgateway {% for config in prometheus_push_gateway_service_config if config[1] is not none %}-{{ config[0] }}={{ config[1] }} {% endfor %}
+
+Restart=always
+RestartSec=20
+TimeoutSec=300
+User={{prometheus_owner}}
+Group={{prometheus_group}}
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target
diff --git a/tests/playbook.yml b/tests/playbook.yml
@@ -2,4 +2,8 @@
 - hosts: localhost
   remote_user: root
   roles:
-    - role: role_under_test
+    - role: role_under_test
+      prometheus_install: true
+      prometheus_node_exporter_install: true
+      prometheus_alert_manager_install: true
+      prometheus_push_gateway_install: true
diff --git a/tests/test.yml b/tests/test.yml
@@ -18,6 +18,11 @@
       register: command_result
       failed_when: "'disabled' in command_result.stdout"
 
+    - name: Check if push gateway service is enabled
+      command: systemctl is-enabled pushgateway
+      register: command_result
+      failed_when: "'disabled' in command_result.stdout"
+
     - shell: "systemctl status prometheus | grep -i running"
       register: status
       failed_when: status.rc != 0
@@ -29,3 +34,7 @@
     - shell: "systemctl status alertmanager | grep -i running"
       register: status
       failed_when: status.rc != 0
+
+    - shell: "systemctl status pushgateway | grep -i running"
+      register: status
+      failed_when: status.rc != 0
diff --git a/vars/main.yml b/vars/main.yml
@@ -8,3 +8,6 @@ prometheus_node_exporter_tarball_url: "https://github.com/prometheus/node_export
 
 prometheus_alert_manager_archive: "alertmanager-{{ prometheus_alert_manager_version }}.{{ prometheus_platform_architecture }}"
 prometheus_alert_manager_tarball_url: "https://github.com/prometheus/alertmanager/releases/download/v{{ prometheus_alert_manager_version }}/{{ prometheus_alert_manager_archive }}.tar.gz"
+
+prometheus_push_gateway_archive: "pushgateway-{{ prometheus_push_gateway_version }}.{{ prometheus_platform_architecture }}"
+prometheus_push_gateway_tarball_url: "https://github.com/prometheus/pushgateway/releases/download/v{{ prometheus_push_gateway_version }}/{{ prometheus_push_gateway_archive }}.tar.gz"
diff --git a/vars/pushgateway.yml b/vars/pushgateway.yml
@@ -0,0 +1,10 @@
+############################################################
+# Auto generated
+############################################################
+prometheus_push_gateway_service_config:
+  - ['log.format', "{{ prometheus_push_gateway_log__format }}"]
+  - ['log.level', "{{ prometheus_push_gateway_log__level }}"]
+  - ['persistence.file', "{{ prometheus_push_gateway_persistence__file }}"]
+  - ['persistence.interval', "{{ prometheus_push_gateway_persistence__interval }}"]
+  - ['web.listen-address', "{{ prometheus_push_gateway_web__listen_address }}"]
+  - ['web.telemetry-path', "{{ prometheus_push_gateway_web__telemetry_path }}"]