Merge pull request #192 from CodeNow/SAN-2841

San 2841

Author: anandkumarpatel

ansible/group_vars/alpha-khronos.yml

@@ -8,6 +8,16 @@ npm_version: "2.1.18"
 
 mongo_hosts: "{% for host in groups['mongodb'] %}{{ hostvars[host]['ansible_default_ipv4']['address'] }}:27000{% if not loop.last %},{% endif %}{% endfor %}"
 
+# for cron job
+# this is the list of queues we want to enqueue a job into
+cron_queues: khronos:containers:image-builder:prune khronos:containers:orphan:prune khronos:context-versions:prune-expired khronos:images:prune khronos:weave:prune
+# a nice version of the rabbitmq host
+cron_rabbit_host: "{{ rabbit_host | default(hostvars[groups['rabbitmq'][0]]['ansible_default_ipv4']['address']) }}:{{ rabbit_port }}"
+# a quick version of authentication for rabbit for cron
+cron_rabbit_auth: --username {{ rabbit_username }} --password {{ rabbit_password }}
+# this is the command we want to run in the container.
+cron_command: "bash -c \"for QUEUE in {{ cron_queues }}; do /khronos/bin/cli.js --queue \\$QUEUE --job '{}' --host {{ cron_rabbit_host }} {{ cron_rabbit_auth }}; done\""
+
 # for container settings
 container_envs: >
   -h khronos

ansible/khronos.yml

@@ -9,3 +9,4 @@
   - { role: docker_client }
   - { role: builder, tags: "build" }
   - { role: container_kill_start, tags: "deploy" }
+  - { role: khronos, tags: ["deploy"] }

ansible/roles/khronos/README.md

@@ -0,0 +1,3 @@
+Run Khronos CLI tool out of cron once daily.
+
+`tasks/main.yml` - install cron entry to run `/khronos/bin/cli.js` and output to `/var/log/khonos_cron.log`

ansible/roles/khronos/tasks/main.yml

@@ -0,0 +1,17 @@
+- name: Put khronos cron script in place
+  sudo: yes
+  tags: cron
+  template:
+    src="khronos-cron.sh"
+    mode=0744
+    dest="/opt/runnable/khronos-cron.sh"
+
+# Run Cronjob once every day at UTC 0400.
+- name: Put Khronos CLI job in place
+  sudo: yes
+  tags: cron
+  cron:
+    name="Khronos CLI Daily"
+    minute="0"
+    hour="4"
+    job="/opt/runnable/khronos-cron.sh >> /var/log/khronos_cron.log 2>&1"

ansible/roles/khronos/templates/khronos-cron.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+# THIS FILE IS MANAGED BY ANSIBLE. PLEASE DO NOT MODIFY. MODIFICATIONS WILL NOT BE SAVED.
+# AUTHOR: BRYAN KENDALL
+
+docker run --rm {{ container_image }}:{{ container_tag }} {{ cron_command }}