Ansible Playbook for Scout on Ubuntu

This is a sample Ansible task (http://www.ansibleworks.com) on how to setup Scout (https://www.scoutapp.com) on Ubuntu. It needs to be included in an ansible playbook.

It’s a follow up to a previous [blog]({% post_url 2013-10-21-how-to-create-an-ansible-playbook-to-configure-haproxy %}) describing an Ansible Playbook to setup an HAProxy system. This Ansible task can be included in the HAProxy playbook as well as any other playbooks with something like this:

---
PLAYBOOK: Install scout on Ubuntu
---
- name: scout
  hosts: all
  user: user-with-sudo
  sudo: True

  vars:
    scout_key: YourScoutAPIKeyFromTheirWebsite

  tasks:
    - include: tasks/scout.yml

We start by defining a “task” file:

---
# TASK: ScoutApp Monitoring (https://scoutapp.com) 

# Separate task to install Ruby
- include: ruby.yml

- name: Install scout + dependencies
  shell: >
    executable=/bin/bash source /etc/profile.d/rvm.sh;
    gem install scout scout_api --no-rdoc --no-ri

- name: Create scout home directory
  file: >
    dest=/root/.scout state=directory
    owner=root group=root mode=0700

In the same file add the crontab entry and logrotate entry for Scout.


- name: Scout cron script crontab
  template: >
    dest=/etc/cron.d/scout
    src=../packages/templates/scout/scout-crontab.j2
    owner=root group=root mode=0444

- name: Scout cron script logrotate
  copy: >
    dest=/etc/logrotate.d/scout
    src=../packages/files/scout/scout-logrotate
    owner=root group=root mode=0444

This is what scout-crontab.j2 looks like:

# crontab for Scout monitoring run by root
* * * * * root /bin/bash -l -c 'scout -n "{{ ansible_fqdn }}" {{ scout_key }}' >> /var/log/scout.log 2>&1

And this is what scout-logrotate looks like:

/var/log/admobius/scout.log
{
      rotate 7
      daily
      compress
      delaycompress
      missingok
      notifempty
}

Now to install ruby using RVM, if you don’t want to use the system ruby (most of the times you don’t).

---
# TASK: Install Ruby on Ubuntu

- name: Install Ruby dependencies
  apt: pkg=$item state=latest install_recommends=no
  with_items:
    - autoconf
    - automake
    - bison
    - build-essential
    - curl
    - libc6-dev
    - libgdbm-dev
    - libffi-dev
    - libncurses5-dev
    - libreadline6
    - libreadline6-dev
    - libsqlite3-dev
    - libssl-dev
    - libtool
    - libyaml-dev
    - libxml2-dev
    - libxslt1-dev
    - openssl
    - pkg-config
    - sqlite3
    - subversion
    - zlib1g
    - zlib1g-dev

- name: Install RVM
  shell: curl -L get.rvm.io | bash -s stable

- name: Install Ruby 2.0.0
  shell: >
    executable=/bin/bash source /etc/profile.d/rvm.sh;
    rvm install 2.0.0

- name: Set default ruby version
  shell: >
    executable=/bin/bash source /etc/profile.d/rvm.sh;
    rvm --default use 2.0.0

and now run it.

ansible-playbook -T 120 scout.yml

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