Docker inspect for detailed info - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the docker inspect command do?

It shows detailed low-level information about Docker objects like containers, images, volumes, or networks in JSON format.

beginner

How can you use docker inspect to get information about a running container?

Run docker inspect <container_name_or_id> to see detailed info such as IP address, mounts, environment variables, and more.

beginner

What format does docker inspect output its information in?

It outputs information in JSON format, which is easy to read and can be parsed by other tools.

intermediate

How do you extract a specific piece of information, like the IP address, from docker inspect output?

Use the --format option with a Go template, for example: docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' <container>.

beginner

Can docker inspect be used on Docker images?

Yes, you can inspect images by running docker inspect <image_name_or_id> to see metadata like layers, size, and creation time.

What is the primary output format of the docker inspect command?

A XML

B YAML

C JSON

D Plain text

docker inspect outputs detailed information in JSON format, which is structured and easy to parse.

Which command shows the IP address of a container named webapp?

A docker show ip webapp

B docker ip webapp

C docker info webapp

D docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' webapp

The --format option with Go template extracts the IP address from the inspect output.

Can docker inspect be used to get details about Docker volumes?

A Yes

B No

C Only for named volumes

D Only for volumes attached to containers

docker inspect works on volumes, containers, images, and networks to show detailed info.

What kind of information can you NOT get from docker inspect?

A Container logs

B Container IP address

C Image creation time

D Container environment variables

Container logs are accessed with docker logs, not docker inspect.

Which of these commands will show detailed info about a Docker image named nginx?

A docker logs nginx

B docker inspect nginx

C docker ps nginx

D docker run nginx

docker inspect nginx shows metadata about the image.

Explain how to use docker inspect to find the IP address of a running container.

Think about how to filter JSON output to get just the IP.

Describe what kind of information you can get from docker inspect for a Docker image.

Focus on image details, not container runtime info.