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Stop signals
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< h1 > Stop signals< / h1 >
< p > When watchtower detects that a running container needs to be updated it will stop the container by sending it a SIGTERM signal.
If your container should be shutdown with a different signal you can communicate this to watchtower by setting a label named < em > com.centurylinklabs.watchtower.stop-signal< / em > with the value of the desired signal.< / p >
< p > This label can be coded directly into your image by using the < code > LABEL< / code > instruction in your Dockerfile:< / p >
< pre > < code class = "docker" > LABEL com.centurylinklabs.watchtower.stop-signal=" SIGHUP"
< / code > < / pre >
< p > Or, it can be specified as part of the < code > docker run< / code > command line:< / p >
< pre > < code class = "bash" > docker run -d --label=com.centurylinklabs.watchtower.stop-signal=SIGHUP someimage
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