Most Useful Docker Commands

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Dear Readers,

In this article,we will see Most useful Docker Commands.

SNO	USE	COMMAND
1	Install Docker Package	yum install docker -y
2	Verify the docker package installed or not	which docker
3	See the Version of Docker	docker –version
4	Start the service of Docker	service docker start
5	Verify the status of Docker	service docker status
6	Verify the status of Docker	docker info
7	see all images inside your machine	docker images
8	See the running containers	docker ps
9	see all the containers inside your machine	docker ps -a
10	create a container from ubuntu image	docker run -it ubuntu //bin/bash
11	see the OS information	cat /etc/os-release
12	Search Jenkin image from online docker registry (Docker Hub)	docker search jenkins
13	Download Jenkin image from online docker registry (Docker Hub)	docker pull jenkins
14	create a container from ubuntu image along with container name	docker run –name ktexperts-container -it ubuntu //bin/bash
15	Go inside the container	docker start ktexperts-container docker attach ktexperts-container
16	Delete the container	docker rm <container-name> docker rm ktexperts-container
17	Stop the container	docker stop <container-name> docker stop ktexperts1-container
18	Delete multiple containers	docker rm <container-1-name> <container-2-name> docker rm ktexperts1-container ktexperts2-container
19	delete image	docker rmi <image-name> docker rmi ubuntu
20	Delete multiple images	docker rmi <image1-name> <image-2-name> docker rmi chef/chefdk centos jenkins
21	what you have done in container	docker diff <container-name> docker diff kt-container
22	Create image from container	docker commit <container-name> docker commit kt-container
23	Give name to the above image	docker tag <imamge-id> <image-name> docker tag 5d721a8b702e kt1-image
24	creating the image along with name	docker commit <container-name> <image-name> docker commit kt-container kt2-image
25	Create image from Dockerfile	docker build -t <image-name> <path of docker file> docker build -t kt2-image .
26	Share volume with another New Container	docker run -it –name <new-container-name> –privileged=true –volumes-from <old-container-name> <image-name> //bin/bash docker run -it –name kt-container-2 –privileged=true –volumes-from kt-container-1 ubuntu //bin/bash
27	Create a container along with volume by using Command Line	docker run -it –name <container-name> -v /<volume-name> <image-name> //bin/bash docker run -it –name kt-container-4 -v /ktexperts-volume ubuntu //bin/bash
28	Create a container along with volumes by using Command Line (host to container)	docker run -it –name <container-name> -v /<path for host volume>:/<volume-name> –privileged=true <image-name> //bin/bash docker run -it –name ktexperts-container -v /home/ec2-user:/ktexperts –privileged=true ubuntu //bin/bash
29	See the list of all details of the containers	docker inspect <container-name> docker inspect ktexperts-container
30	Create a Dominized Container with image and port mapping	docker run -td –name <container-name> -p <port-number>:<port-number> <image-name> docker run -td –name ktexperts-webserver -p 80:80 ubuntu
31	Install webserver package “apache2” in ubuntu	apt-get install apache2 -y
32	Start apache2 service	service apache2 start
33	See the status of apache2 service	service apache2 status
34	Logging to Docker Hub Account	docker login
35	Reserve space for the image in Docker Hub	docker tag <image-name> <Docker-Hub-Account-ID>/<give-new-image-name> docker tag ktexperts-image rameshktexperts/ktexperts-new-image
36	Push the image to Docker Hub	docker push<Docker-Hub-Account-ID>/<give-reserverd-image-name> docker push rameshktexperts/ktexperts-new-image
37	Pull image from Docker Hub	docker pull <Docker-Hub-Account-ID>/<give-reserverd-image-name> docker pull rameshktexperts/ktexperts-new-image
38	Create a Dockerfile	vi Dockerfile FROM centos RUN echo “Welcome to our website : www.ktexperts.com” > /tmp/kt-file
39	Create a Dockerfile	vi Dockerfile FROM centos WORKDIR /tmp RUN echo “Welcome to our website : www.ktexperts.com” > /tmp/kt-file RUN echo “It a knowledge sharing platform”> /tmp/kt-file2 ENV myname KTEXPERTS COPY kt-file1 /tmp ADD kt-file2.tar.gz /tmp
40	Create a Dockerfile with volume	vi Dockerfile FROM ubuntu VOLUME [“/ktexperts”]