Merge pull request #7 from UnderGreen/upstart_support

Upstart support

defaults/main.yml

@@ -22,6 +22,7 @@ prometheus_rules_dir: "{{ prometheus_config_dir }}/rules"
 prometheus_file_sd_config_dir: "{{ prometheus_config_dir }}/tgroups"
 
 prometheus_config_dir: /etc/prometheus
+prometheus_log_dir: /var/log/prometheus
 prometheus_pid_path: /var/run/prometheus.pid
 prometheus_db_dir: /var/lib/prometheus
 

meta/main.yml

@@ -14,6 +14,8 @@ galaxy_info:
     - jessie
   - name: Ubuntu
     versions:
+    - precise
+    - trusty
     - xenial
   galaxy_tags:
   - monitoring

tasks/main.yml

@@ -9,6 +9,7 @@
     - tar
     - bzip2
     - ca-certificates
+    - ssl-cert
 
 - name: create prometheus system group
   group:
@@ -40,6 +41,7 @@
     - "{{ prometheus_rules_dir }}"
     - "{{ prometheus_file_sd_config_dir }}"
     - "{{ prometheus_db_dir }}"
+    - "{{ prometheus_log_dir }}"
 
 - name: download prometheus server binary
   get_url:
@@ -88,10 +90,22 @@
     owner: root
     group: root
     mode: 0644
+  when: ansible_service_mgr == 'systemd'
   notify:
     - service reenable
     - restart prometheus
 
+- name: create init service unit
+  template:
+    src: etc/init/prometheus.conf.j2
+    dest: /etc/init/prometheus.conf
+    owner: root
+    group: root
+    mode: 0644
+  when: ansible_service_mgr == 'upstart'
+  notify:
+    - restart prometheus
+
 - name: ensure prometheus service is enabled
   service:
     name: prometheus

templates/etc/init/prometheus.conf.j2

@@ -0,0 +1,15 @@
+description "Prometheus Monitoring"
+start on (local-filesystems and net-device-up IFACE!=lo)
+stop on runlevel [016]
+
+respawn
+env GOMAXPROCS={{ prometheus_gomaxprocs }}
+setuid {{ prometheus_user }}
+setgid {{ prometheus_group }}
+
+script
+  exec >> "{{ prometheus_log_dir }}/prometheus.log"
+  exec 2>&1
+  exec {{ prometheus_bin_dir }}/prometheus {% for flag, flag_value in prometheus_config_flags.iteritems() %}-{{ flag }}={{ flag_value }} {% endfor %}
+
+end script