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15 lines
674 B
Markdown
15 lines
674 B
Markdown
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When watchtower detects that a running container needs to be updated it will stop the container by sending it a SIGTERM signal.
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If your container should be shutdown with a different signal you can communicate this to watchtower by setting a label named _com.centurylinklabs.watchtower.stop-signal_ with the value of the desired signal.
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This label can be coded directly into your image by using the `LABEL` instruction in your Dockerfile:
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```docker
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LABEL com.centurylinklabs.watchtower.stop-signal="SIGHUP"
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```
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Or, it can be specified as part of the `docker run` command line:
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```bash
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docker run -d --label=com.centurylinklabs.watchtower.stop-signal=SIGHUP someimage
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```
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