Docker/Basics - Revision history

R00t at 01:36, 24 November 2024

2024-11-24T01:36:04Z

R00t at 07:37, 20 February 2024

2024-02-20T07:37:30Z

R00t: /* rmi (delete image) */

2023-12-20T08:15:47Z

‎rmi (delete image)

R00t: /* remove */

2023-12-20T04:57:49Z

‎remove

R00t: /* rmi (delete image) */

2023-12-20T04:01:08Z

‎rmi (delete image)

R00t: /* rmi (delete image) */

2023-12-20T04:00:57Z

‎rmi (delete image)

R00t: /* search */

2023-12-20T03:22:16Z

‎search

R00t: /* overwrite entry point -it --entrypoint=/bin/bash */

2021-12-02T17:58:32Z

‎overwrite entry point -it --entrypoint=/bin/bash

R00t: /* run */

2021-12-02T17:58:18Z

‎run

R00t: /* Using a repo */

2021-12-01T07:08:49Z

‎Using a repo

@@ Line 124: / Line 124: @@
 remove container by image name
   <nowiki>~$ sudo docker rm $(docker container ls --all --quiet --filter "ancestor=ubuntu-pwsh")</nowiki>
 ===restart===

@@ Line 56: / Line 56: @@
 inspect an image to see what it is comprised of.
   <nowiki>~$ sudo docker inspect image_id</nowiki>
 ==Containers==

@@ Line 42: / Line 42: @@
   <nowiki>~$ sudo docker rmi $(docker images | grep 'imagename')
 ~$ sudo docker rmi $(docker images 'completeimagename' -a -q)</nowiki>
 ===history===

@@ Line 117: / Line 117: @@
 remove all stopped containers
   <nowiki>~$ sudo docker rm `sudo docker container ls -a -q`</nowiki>
 ===restart===

@@ Line 41: / Line 41: @@
 or alternative you can delete by name
   <nowiki>~$ sudo docker rmi $(docker images | grep 'imagename')
-~$ docker rmi $(docker images 'completeimagename' -a -q)</nowiki>
+~$ sudo docker rmi $(docker images 'completeimagename' -a -q)</nowiki>
 ===history===

@@ Line 39: / Line 39: @@
 delete a local docker image
   <nowiki>~$ sudo docker rmi image_id</nowiki>
 ===history===

@@ Line 26: / Line 26: @@
 public Docker Hub (repo) for images of software builds.  Includes both official (owner) created and public (consumer) created so be careful with what you download for obvious security reasons.
   <nowiki>~$ sudo docker search software_name</nowiki>
 ===pull===
 download docker images for local deployment.

@@ Line 84: / Line 84: @@
   <nowiki>~$ docker run -it --entrypoint=/bin/bash image_name:tag
 ie. docker run -it --entrypoint=/bin/bash grafana/grafana:latest</nowiki>
-====environment variables <code>-e  --env  --env-file</code>
+====environment variables <code>-e  --env  --env-file</code>====
 :insert environment variables into a docker image, sometimes required for certain docker containers to run, like mysql.
   <nowiki>~$ docker run -e MYVAR1 --env MYVAR2=foo --env-file ./env.list ubuntu bash</nowiki>

@@ Line 52: / Line 52: @@
 ===run===
 There are a few different options to consider when running a container.
-;interactive <code>-it</code>
+====interactive <code>-it</code>====
 :add the -it option if you want to be interactive with the container, ie. immediately log in as root and have a shell.
   <nowiki>~$ sudo docker run -it image_id
 ~$ sudo docker run -it image_id:latest /bin/bash (example command)
 </nowiki>
-;standard
+====standard====
 :no switches.  This will run the container and execute the default command.  In basic instances it would be <code>"/bin/bash"</code> which is an unattached shell that would immediate exit causing the container to stop running.
   <nowiki>~$ sudo docker run image_id</nowiki>
-;name with meaningful name <code>--name=meaningful_name</code>
+====name with meaningful name <code>--name=meaningful_name</code>====
 :add a meaningful name instead of allowing docker to randomly create one.
   <nowiki>~$ sudo docker run --name=meaningful_name image_id</nowiki>
-;hostname <code>--hostname=value</code>
+====hostname <code>--hostname=value</code>====
 :specify a specific hostname for the container rather than allowing a random one to be generated.
   <nowiki>~$ sudo docker run --hostname=defined_hostname image_id</nowiki>
-;automatically delete containers upon exit <code>--rm</code>
+====automatically delete containers upon exit <code>--rm</code>====
 :a great time saving option that prevents you from having lots of stopped containers lingering.
   <nowiki>~$ sudo docker run --rm image_id</nowiki>
-;disconnected <code> -d </code>
+====disconnected <code> -d </code>====
 :also called daemon mode
   <nowiki>~$ sudo docker run -d --name=meaningful_name image_name:tag</nowiki>
-;container port(s) <code>-p   -P</code>
+====container port(s) <code>-p   -P</code>====
 :start a container with a port or ports that pass through from the container to the host.
   <nowiki>~$ sudo docker run -d --name meaningful_name -P image_name:tag      --------    This binds a random host port from 32768+ to the container listening port.
-~$ sudo docker run -d -p 8080:80 --name=meaningful_name image_name:tag      --------    This binds the host port 8080 to the container port 80.</nowiki>
+;$ sudo docker run -d -p 8080:80 --name=meaningful_name image_name:tag      --------    This binds the host port 8080 to the container port 80.</nowiki>
-;volume mount <code> -v </code>
+====volume mount <code> -v </code>====
 :mount a volume from the host into a specific location in the container.  Allows a static location for files that live outside of the containers.
   <nowiki>~$ sudo docker -d -p 8080:80 --name=meaningful_name -v /host/path:/container/path image_name:tag
 ie. ~$ sudo docker -d -p 8080:80 --name=Webserver4 -v /home/user/www:/usr/share/ngnix/html nginx:latest</nowiki>
-;overwrite entry point <code> -it --entrypoint=/bin/bash</code>
+====overwrite entry point <code> -it --entrypoint=/bin/bash</code>====
 :overwrite the entry point used on the container startup.  This allows you to log into the container in order to inspect it manually while preventing the normal startup entry point from executing.
   <nowiki>~$ docker run -it --entrypoint=/bin/bash image_name:tag
 ie. docker run -it --entrypoint=/bin/bash grafana/grafana:latest</nowiki>
 ===list===

@@ Line 10: / Line 10: @@
 ===Using a repo===
 Ref: https://docs.docker.com/engine/install/centos/
-  <nowiki>~$ sudo yum install -y yum-util
+  <nowiki>~$ sudo yum install -y yum-utils
 ~$ sudo yum-config-manager \
      --add-repo \