styblope/docker-api-port.md

Last active November 15, 2024 03:16

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Enable TCP port 2375 for external connection to Docker

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docker-api-port.md

Enable TCP port 2375 for external connection to Docker

See this issue.
Docker best practise to Control and configure Docker with systemd.

Create daemon.json file in /etc/docker:

 {"hosts": ["tcp://0.0.0.0:2375", "unix:///var/run/docker.sock"]}

Add /etc/systemd/system/docker.service.d/override.conf

 [Service]
 ExecStart=
 ExecStart=/usr/bin/dockerd

Reload the systemd daemon:
```
 systemctl daemon-reload
```
Restart docker:
```
 systemctl restart docker.service
```

gsemet commented Nov 3, 2024

i had to do the following:

$ cat /etc/systemd/system/docker.service.d/override.conf
[Service]
 ExecStart=
 ExecStart=/usr/sbin/dockerd --config-file /etc/docker/daemon.overrided.json

$ cat /etc/docker/daemon.overrided.json
{
  "hosts": ["tcp://0.0.0.0:2375", "unix:///var/run/docker.sock"]
}

The binary is in /usr/sbin/dockerd, and changing the daemon.json conflicted with the default parameter -H fd://