Ansible

Adding iptables Rules With Ansible

Monday, February 17, 2014 - 00:44

Many systems and applications require certain access to certain ports and protocols. When installing these systems using Ansible it is necessary to also open up the needed ports so that the systems can function correctly. As there is no iptables module in Ansible the shell command is needed to add the iptables rules.

As an example, here is a task that adds a iptables rule to allow Apache to communicate on port 80.

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Installing sshpass On OSX Mavericks

Sunday, February 16, 2014 - 13:44

When setting up a server for the first time with Ansible you will need to pass ssh credentials to Ansible directly to set up ssh keys. This is done by the use of the sshpass program which allows Ansible to pass your user credentials directly to ssh in order to open a connection to the server. The sshpass program is easily installed on Linux systems with the apt or yum package managers, but on OSX you will need to install it manually.

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Vlad - The Vagrant LAMP Ansible Drupal development box

Sunday, February 2, 2014 - 01:51

I’ve been using local development environments for years to work on websites. At one points I even setup some Phing scripts to create Apache hosts and databases locally so that I didn’t have to keep adding them myself. When I was first introduced to Vagrant I liked the idea of supplying a box with a project so that people could work on it without having to reconfigure their system for each project. What was missing was a good provisioning tool that wasn’t difficult to understand. I had looked at Puppet and Chef but they were just too complex and after a couple of hours of looking into each one I still wasn’t sure about how they worked.
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Ansible SSH Setup Playbook

Tuesday, January 14, 2014 - 23:15

It is best practice to use Ansible with SSH keys in order to create the SSH connections to the servers. This does require a little bit of extra setup before hand in order to ensure that the server can be reached by Ansible via SSH keys alone. As I have been doing this quite a lot recently I decided to package the setup steps into an Ansible playbook.

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Ansible: The Automation Engine

Monday, December 23, 2013 - 12:29

Ansible is a automation and provisioning tool that makes it easy to configure systems with the needed software, configuration options and even content. It is a command line tool, written in Python, that uses SSH connections to run these actions. This means that all you need to do is have a viable SSH connection to a machine and Ansible will run any actions you want to run. Ansible can either run single commands or use what is called a playbook to run several commands. Ansible playbooks are written in YAML, which makes understanding them quite easy.

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