docker inspect shows the container details.

Here’s how to parse out specific elements from docker inspect:

# .State is a HASH and keys are case sensitive
docker inspect -f '{{ index .State "Status"}}' MQTT
exited

# .Args is a ARRAY and keys are zero based
docker inspect -f '{{ index .Args 0}}' MQTT
mosquitto

# .Image has not children
docker inspect -f '{{ index .Image}}' MQTT
sha256:dceabd145c2b349f70c8157d1f63d595d6a963f0a257015df556bba80e34fc41

# .HostConfig is a HASH and .Binds is a ARRAY
docker inspect -f '{{ index .HostConfig.Binds 0}}' MQTT
/mnt/user/appdata/MQTT:/config:rw

# .HostConfig, .LogConfig, & .Config are all HASHES, keys are case sensitive
docker inspect -f '{{ index .HostConfig.LogConfig.Config "max-size"}}' MQTT
50m

See below for the “docker inspect MQTT” source snippet:

[
    {
        "Id": "230f25a99bda02db9dcb948207ee34b7955f4922e034e8b1aaa6f8c441c59619",
        "Created": "2020-11-06T04:33:17.078059907Z",
        "Path": "/run.sh",
        "Args": [
            "mosquitto"
        ],
        "State": {
            "Status": "exited",
            "Running": false,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 0,
            "ExitCode": 1,
            "Error": "",
            "StartedAt": "2025-02-17T00:53:16.19209215Z",
            "FinishedAt": "2025-02-17T00:53:16.475295616Z"
        },
        "Image": "sha256:dceabd145c2b349f70c8157d1f63d595d6a963f0a257015df556bba80e34fc41",
        "ResolvConfPath": "/var/lib/docker/containers/230f25a99bda02db9dcb948207ee34b7955f4922e034e8b1aaa6f8c441c59619/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/230f25a99bda02db9dcb948207ee34b7955f4922e034e8b1aaa6f8c441c59619/hostname",
        "HostsPath": "/var/lib/docker/containers/230f25a99bda02db9dcb948207ee34b7955f4922e034e8b1aaa6f8c441c59619/hosts",
        "LogPath": "/var/lib/docker/containers/230f25a99bda02db9dcb948207ee34b7955f4922e034e8b1aaa6f8c441c59619/230f25a99bda02db9dcb948207ee34b7955f4922e034e8b1aaa6f8c441c59619-json.log",
        "Name": "/MQTT",
        "RestartCount": 0,
        "Driver": "btrfs",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [
                "/mnt/user/appdata/MQTT:/config:rw"
            ],
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {
                    "max-file": "1",
                    "max-size": "50m"
                }
            },
            "NetworkMode": "bridge",
            "PortBindings": {
                "1883/tcp": [
                    {
                        "HostIp": "",
                        "HostPort": "1883"
                    }
                ],
                "9001/tcp": [
                    {
                        "HostIp": "",
                        "HostPort": "9001"
                    }
                ]
            },
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "ConsoleSize": [
                0,
                0
            ],