Verified Commit 006cdc04 authored by Evangelos Foutras's avatar Evangelos Foutras 🐱
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Document semi-automated server updates

parent 5ff90378
......@@ -128,6 +128,23 @@ The following steps should be used to update our managed servers:
* checkservices
* reboot
##### Semi-automated server updates (experimental)
For updating a lot of servers in a more unattended manner, the following
playbook can be used:
ansible-playbook playbooks/tasks/upgrade-servers.yml [-l SUBSET]
It runs `pacman -Syu` on the targeted hosts in batches and then reboots them.
If any server fails to reboot successfully, the rolling update stops and
further batches are cancelled. To display the packages updated on each host,
you can pass the `--diff` option to ansible-playbook.
Using this update method, `.pacnew` files are left unmerged which is OK for
most configuration files that are managed by Ansible. However, care must be
taken with updates that require manual intervention (e.g. major PostgreSQL
releases).
## Servers
This section has been moved to [docs/servers.md](docs/servers.md).
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