Docker Client Operations: Difference between revisions
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<font color=red>'''TODO''': how is a docker instance configured with specific [[Docker Concepts#Image_Registry_Operations|registries]]?</font> | <font color=red>'''TODO''': how is a docker instance configured with specific [[Docker Concepts#Image_Registry_Operations|registries]]?</font> | ||
* <span id='Pull_an_Image_from_Registry'></span>Pull an image or a repository from a registry and place it in the local registry: [[docker pull#Overview|docker pull]] | |||
=Scenarios= | =Scenarios= | ||
{{Internal|Docker Client Scenarios|Docker Client Scenarios}} | {{Internal|Docker Client Scenarios|Docker Client Scenarios}} | ||
Revision as of 17:18, 5 December 2017
External
- Docker Cheat Sheet: https://github.com/wsargent/docker-cheat-sheet
Internal
Installation Verification
Running the Client
On the Same Host as the Server
In order to connect to the docker server over the Unix socket, the user running the client must have permissions to do so:
[testuser@docker-server ~]$ ls -al /var/run/docker.sock srw-rw----. 1 root docker 0 Apr 25 16:00 /var/run/docker.sock
One way to do that is to make the user a member of "docker" group:
usermod -G docker testuser
From a Remote Host
Info
- Server and client version docker version
- System-wide info docker info
Image Operations
- Search Docker Hub or other registries: docker search
- List images in the local registry: docker images
- Remove images from the local registry: docker rmi
- Build an image: docker build
- Pull an image or a repository from a registry and place it in the local registry: docker pull
- Image history: docker history
- Export a container's filesystem into a TAR file: docker export
- Create a new image from a TAR file: docker import
- load
Explore an Image
If the image has a shell, it can be run in interactive mode and explored:
docker run -it <image-id|name> sh
Otherwise it can be exported into a TAR file system with docker export and explored.
Container Lifecycle Operations
- List containers (running or otherwise): docker ps
- Create and run a new container: docker run
- Stop a running container: docker stop
- Start a previously stopped container: docker start
- Remove a container: docker rm
- Start a Container Automatically
Container Introspection
- Low-level information about a container: docker inspect
- Look at container's logs docker logs
- Explore changes introduced in the container's file system docker diff
Interaction with a Running Container
Image Registry Operations
TODO: how is a docker instance configured with specific registries?
- Pull an image or a repository from a registry and place it in the local registry: docker pull