command: docker inspect short: Return low-level information on Docker objects long: |- Docker inspect provides detailed information on constructs controlled by Docker. By default, `docker inspect` will render results in a JSON array. usage: docker inspect [OPTIONS] NAME|ID [NAME|ID...] pname: docker plink: docker.yaml options: - option: format shorthand: f value_type: string description: Format the output using the given Go template deprecated: false experimental: false experimentalcli: false kubernetes: false swarm: false - option: size shorthand: s value_type: bool default_value: "false" description: Display total file sizes if the type is container deprecated: false experimental: false experimentalcli: false kubernetes: false swarm: false - option: type value_type: string description: Return JSON for specified type deprecated: false experimental: false experimentalcli: false kubernetes: false swarm: false examples: |- ### Get an instance's IP address For the most part, you can pick out any field from the JSON in a fairly straightforward manner. ```bash $ docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $INSTANCE_ID ``` ### Get an instance's MAC address ```bash $ docker inspect --format='{{range .NetworkSettings.Networks}}{{.MacAddress}}{{end}}' $INSTANCE_ID ``` ### Get an instance's log path ```bash $ docker inspect --format='{{.LogPath}}' $INSTANCE_ID ``` ### Get an instance's image name ```bash $ docker inspect --format='{{.Config.Image}}' $INSTANCE_ID ``` ### List all port bindings You can loop over arrays and maps in the results to produce simple text output: ```bash $ docker inspect --format='{{range $p, $conf := .NetworkSettings.Ports}} {{$p}} -> {{(index $conf 0).HostPort}} {{end}}' $INSTANCE_ID ``` ### Find a specific port mapping The `.Field` syntax doesn't work when the field name begins with a number, but the template language's `index` function does. The `.NetworkSettings.Ports` section contains a map of the internal port mappings to a list of external address/port objects. To grab just the numeric public port, you use `index` to find the specific port map, and then `index` 0 contains the first object inside of that. Then we ask for the `HostPort` field to get the public address. ```bash $ docker inspect --format='{{(index (index .NetworkSettings.Ports "8787/tcp") 0).HostPort}}' $INSTANCE_ID ``` ### Get a subsection in JSON format If you request a field which is itself a structure containing other fields, by default you get a Go-style dump of the inner values. Docker adds a template function, `json`, which can be applied to get results in JSON format. ```bash $ docker inspect --format='{{json .Config}}' $INSTANCE_ID ``` deprecated: false experimental: false experimentalcli: false kubernetes: false swarm: false