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Last active February 28, 2023 03:38
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proxy docker /var/run/docker.sock to port 2375 with socat
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README.md

The new Docker daemon uses port: 2376 with TLS enable by default. Sometimes I want to play with curl on the old plain http port 2375. The trick is: use socat in a container to proxy the unix socket to a real port.

docker run -d \
  --volume /var/run/docker.sock:/var/run/docker.sock \
  --name docker-http \
  deb socat -d -d TCP-L:2375,fork UNIX:/var/run/docker.sock

DOCKER_URL=$(docker inspect -f "{{.NetworkSettings.IPAddress}}" docker-http):2375
curl $DOCKER_URL/_ping

reference: https://gist.github.com/nuxlli/7553996

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