Revision as of 17:22, 5 December 2017

External

Docker Cheat Sheet: https://github.com/wsargent/docker-cheat-sheet

Internal

Installation Verification

Docker 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

Registry 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
Pull an image or a repository from a registry and place it in the local registry: docker pull
TODO: how is a docker instance configured with specific registries?

Image Manipulation

Build an image: docker build
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

@@ Line 36: / Line 36: @@
 * System-wide info [[docker info]]
-=<span id='Image_Management'></span><span id='Image_Registry_Operations'></span><span id='images'></span>Image Operations=
+=<span id='Image_Management'></span><span id='images'></span>Image Operations=
+==<span id='Image_Registry_Operations'></span>Registry Operations==
 * <span id='Search_for_Images'></span>Search Docker Hub or other registries: [[docker search]]
 * <span id='List_Images'></span>List images in the [[Docker_Concepts#Local_Image_Registry|local registry]]: [[docker images]]
 * <span id='Remove_an_Image'></span>Remove images from the  [[Docker_Concepts#Local_Image_Registry|local registry]]: [[docker rmi|docker rmi]]
+* <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]]
+* <font color=red>'''TODO''': how is a docker instance configured with specific [[Docker Concepts#Image_Registry_Operations|registries]]?</font>
+==Image Manipulation==
 * <span id='Build'></span><span id='Build_an_Image'>Build an image: [[docker build]]
-* <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]]
 * <span id='Image_History'></span>Image history: [[docker history]]
 * <span id='Export_the_Filesystem'></span>Export a container's filesystem into a TAR file: [[docker export]]
 * <span id='import'></span>Create a new image from a TAR file: [[docker import|docker import]]
 * <span id='load'></span>[[docker load|load]]
-* <font color=red>'''TODO''': how is a docker instance configured with specific [[Docker Concepts#Image_Registry_Operations|registries]]?</font>
 ==Explore an Image==

Docker Client Operations: Difference between revisions