38 lines
1.0 KiB
Markdown
38 lines
1.0 KiB
Markdown
---
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nav_order: 3
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---
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# Operating system content and usage
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## Automatic updates enabled by default
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The base image here enables the
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[bootc-fetch-apply-updates.service](https://github.com/containers/bootc/blob/main/manpages-md-extra/bootc-fetch-apply-updates.service.md)
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systemd unit which automatically finds updated container images from the
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registry and will reboot into them.
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### Controlling automatic updates
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First, one can disable the timer entirely as part of a container build:
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```dockerfile
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RUN systemctl mask bootc-fetch-apply-updates.timer
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```
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Alternatively, one can use systemd "drop-ins" to override the timer
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(for example, to schedule updates for once a week), create a file
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like this, named e.g. `50-weekly.conf`:
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```systemd
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[Timer]
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# Clear previous timers
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OnBootSec= OnBootSec=1w OnUnitInactiveSec=1w
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```
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Then add it into your container:
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```dockerfile
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RUN mkdir -p /usr/lib/systemd/system/bootc-fetch-apply-updates.timer.d
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COPY 50-weekly.conf /usr/lib/systemd/system/bootc-fetch-apply-updates.timer.d
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```
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