Ansible Workflows

My ansible workflows are here to:

Update existing computers
Setup new raspberry pi's and lab computers running Linux

The latter workflow is adopted from online workflows. Check out the vars folder for settings on which keys to copy!

Playbooks

Run the playbooks via:

ansible-playbook PLAYBOOK-NAME.yml

Update existing computers

The playbook update_apt.yml updates the apt cache and upgrades all packages. It is run via:

ansible-playbook update_apt.yml

Update Mattermost

The playbook mattermost_update.yml updates the version of the Mattermost server. It is run via:

ansible-playbook mattermost_update.yml

The playbook first asks which Mattermost version to download and install. Make sure that you give the three digit version number, e.g. 5.32.1, that you want to upgrade to. The playbook then downloads the new version, stops the Mattermost server, and installs the new version. The upgrade follows the official Mattermost upgrade guide.

Warning: Special instructions are not taken into consideration. This means that you must ensure that the simple upgrade procedure is adequate for the upgrade you want to perform. Technically, you can also downgrade the Mattermost server by specifying a lower version number.

Setup

For host setup, see below
Clone this repository or make sure you have the files mattermost-update.yml and vars/mattermost.yml locally
Configure the variables according to your needs in vars/mattermost.yml. The top block is for the Mattermost server, the bottom block for the local / control machine.
- tmp_path: Temporary path on the server to download the new Mattermost version to
- install_path: Path where you mattermost folder is located
- backup_path: Path where you want to store the backup of the old Mattermost version on the server
- do_cntrl_backup: Boolean to decide if you want to copy the backup to the control machine or not
- cntrl_backup_path: Path where you want to store the backup of the old Mattermost version on the control machine

Host setup

The hosts are set up in /etc/ansible/hosts. For lab computers and webservers, the configuration can look something like this:

# ubuntu lab computers
[lab_ubuntu]
sassseeli ansible_host=sassseeli.physics.brandeis.edu

# actual servers
[webservers]
mattermost-droplet-do ansible_host=159.223.133.198


[all:vars]
ansible_python_interpreter=/usr/bin/python3

Help

A good digital ocean article on ansible is here and here's a cheat sheet. The original playbooks that I adopted for my cases were from the DO community GitHub.

trappitsch/ansible_playbooks