Automatic system upgrades: Difference between revisions
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Automatic system upgrades can be used to upgrade a system regularly at a specific time. This can help to reduce the time period of applying important security patches to your running software but might also introduce some breakage in case an automatic upgrade fails. | Automatic system upgrades can be used to upgrade a system regularly at a specific time. This can help to reduce the time period of applying important security patches to your running software but might also introduce some breakage in case an automatic upgrade fails. For automatic upgrades an automatic [[Garbage Collection|garbage collection]] is important to prevent full <syntaxhighlight inline lang="bash">/boot</syntaxhighlight> and <syntaxhighlight inline lang="bash">/</syntaxhighlight> partitions. | ||
== Configuration == | == Configuration == | ||
=== Channel-based systems (default) === | |||
Most NixOS installations use channels by default. If you're unsure which you're using, check with <syntaxhighlight inline lang="bash">nix-channel --list</syntaxhighlight>. If that returns results, you're using channels. | |||
For channel-based systems, use this configuration: | |||
{{file|auto-upgrade.nix|nix|<nowiki> | |||
system.autoUpgrade = { | |||
enable = true; | |||
flags = [ | |||
"--print-build-logs" | |||
]; | |||
dates = "02:00"; | |||
randomizedDelaySec = "45min"; | |||
allowReboot = false; # Set to true if you want automatic reboots | |||
}; | |||
</nowiki>}} | |||
<strong>Important:</strong> Do not use flake-specific flags with channel-based systems, as they will cause the upgrade to fail silently. | |||
=== Flake-based systems === | |||
To enable unattended automatic system updates on a flake-enabled host, add following part to your configuration: | To enable unattended automatic system updates on a flake-enabled host, add following part to your configuration: | ||
{{file| | {{file|auto-upgrade.nix|nix|<nowiki> | ||
system.autoUpgrade = { | system.autoUpgrade = { | ||
enable = true; | enable = true; | ||
flake = | flake = "/path/to/flake"; | ||
flags = [ | flags = [ | ||
"-- | "--print-build-logs" | ||
"--commit-lock-file" # If you want to automatically commit the updated flake.lock | |||
"- | |||
]; | ]; | ||
dates = "02:00"; | dates = "02:00"; | ||
| Line 18: | Line 39: | ||
}; | }; | ||
</nowiki>}} | </nowiki>}} | ||
== Monitoring == | |||
Check that automatic system upgrades run successfully. Force an automatic system upgrade by running | |||
<syntaxhighlight lang="bash"> | |||
# systemctl start nixos-upgrade | |||
</syntaxhighlight> | |||
Check the upgrade log with | |||
<syntaxhighlight lang="bash"> | |||
# systemctl status nixos-upgrade.service | |||
</syntaxhighlight> | |||
Or, to see the full log | |||
<syntaxhighlight lang="bash"> | |||
# journalctl -u nixos-upgrade.service | |||
</syntaxhighlight> | |||
To see the status of the upgrade timer run | |||
<syntaxhighlight lang="bash"> | |||
# systemctl status nixos-upgrade.timer | |||
</syntaxhighlight> | |||
== Troubleshooting == | |||
=== Git "repository is not owned by current user" === | |||
The flake repository directory is not owned by <syntaxhighlight inline lang="bash">root</syntaxhighlight> (which <syntaxhighlight inline lang="bash">nixos-upgrade</syntaxhighlight> runs as). To fix this, add the following to <syntaxhighlight inline lang="bash">/root/.gitconfig</syntaxhighlight>: | |||
{{file|/root/.gitconfig|gitconfig|<nowiki> | |||
[safe] | |||
directory = /path/to/flake | |||
</nowiki>}} | |||
[[Category:NixOS]] | |||