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Secure connections
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< h1 > Secure connections< / h1 >
< p > Watchtower is also capable of connecting to Docker endpoints which are protected by SSL/TLS. If you've used < em > docker-machine< / em > to provision your remote Docker host, you simply need to volume mount the certificates generated by < em > docker-machine< / em > into the watchtower container and optionally specify < code > --tlsverify< / code > flag.< / p >
< p > The < em > docker-machine< / em > certificates for a particular host can be located by executing the < code > docker-machine env< / code > command for the desired host (note the values for the < code > DOCKER_HOST< / code > and < code > DOCKER_CERT_PATH< / code > environment variables that are returned from this command). The directory containing the certificates for the remote host needs to be mounted into the watchtower container at < em > /etc/ssl/docker< / em > .< / p >
< p > With the certificates mounted into the watchtower container you need to specify the < code > --tlsverify< / code > flag to enable verification of the certificate:< / p >
< pre > < code class = "bash" > docker run -d \
--name watchtower \
-e DOCKER_HOST=$DOCKER_HOST \
-e DOCKER_CERT_PATH=/etc/ssl/docker \
-v $DOCKER_CERT_PATH:/etc/ssl/docker \
containrrr/watchtower --tlsverify
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