Docker (container, hub, image)

 Docker container

Docker hub

Docker Image - Docker hub (https://hub.docker.com/)where we can find docker images

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                                                        Docker Commands:

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1. docker pull imageName

    (docker pull imageName:version)    

2. docker run imageName (pulls image if not available and create container )

    (docker run -d imageName)  (detach mode)

   (docker run --name newName -d imageName) (to create name of container other than default name)

>docker run -e MYSQL_ROOT_PASSWORD=demo --name mySQLserverLatest mysql

Build a container from the image

    docker run -it imageName (-it for interactive mode)

3. docker images

4. docker ps -a   (to  check how many containers are running and their detail)

5. docker start

6.  docker stop

7. docker rmi imageId (or imageName) to remove image

8. docker rm containerId (remove container, first remover container and then image)

Port Binding: to bind port of  host to container  port  (-pHostPort:ContainerPort)

9. docker run -p8080:3306 imageName         

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                                                                    Docker Network

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docker network ls

docker network create nameOfNetwork

docker network rm nameOfNetwork (to delete network)

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Docker compose

manage multiple container

write container instruction in .yaml file

every individual container instruction comes under services

-- Docker Command 

above command in form of docker complose yaml file 

firt one is to run the docker compose with instruction in the filename.yaml

to remove docker compose (2nd command)

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Dockerizing of App

converting app to docker image and create container

FORM: base image 

dockerization of app using node and mongoDB

run below command for dockerization

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command to attach volume: (-v for volume and full path of source and container)

create ubuntu machine and attach local folder to container

docker run -v sourcePath:containerPath ubuntu 

docker volume created at path as below (if  no specific path is mentioned while creating volume)

Attaching volume to container/image