docker4.txt

Prob- 1. How to start jenkins server on docker container
      2. Start and stop jenkins container
      3. How to set jenkins home on docker volume and host machine

jenkins - Jenkins is a free and open source automation server written in Java.
          Jenkins helps to automate the non-human part of the software development process,
          with continuous integration and facilitating technical aspects of continuous delivery.

Use - we can share data b/w multiple containers.

# To start jenkins server on docker volume:-

 1. docker pull jenkins                >> to extract jenkins from docker hub
 2. docker volume create "VolumeName"  >> to create a virtual docker volume 
 3. docker volume ls                   >> show volumes present
 4. docker volume inspect "VolumeName" >> It will show breif details of respective volume 
 5. docker run --name MyJenkins1 -p 8080:8080 -p 50000:50000 -v myjenkins:/var/jenkins_home jenkins
                                       >> This will run myjenkins1 on localhost 8080 and download all requirement
    > login with help of password given by above command 
 6. docker inspect MyJenkins1

# You can make another container and run jenkins with differnt name but can acess same data , that how we can share data b/w multiple containers.

## To start jenkins server on host machine
 1. docker pull jenkins
 2. docker run -p 8080:8080 -p 50000:50000 jenkins
    docker run --name MyJenkins -p 8080:8080 -p 50000:50000 -v /Users/username/Desktop/Jenkins_Home:/var/jenkins_home jenkins
    docker run --name MyJenkins2 -p 9090:8080 -p 50000:50000 -v /Users/username/Desktop/Jenkins_Home:/var/jenkins_home jenkins


In case you face issues like installing plugins on this Jenkins, can setup jenkins with this command:
$ docker run -u root --rm -p 8080:8080 -v /srv/jenkins-data:/var/jenkins_home   -v /var/run/docker.sock:/var/run/docker.sock   --name jenkins jenkinsci/blueocean

Bonus info-:

1. docker pause container-name/id    >> it will pause your container
                                        (you give input but it does not show and proceed but\
                                         just store the input)
2. docker unpause container-name/id  >> it will resume the container and show the store data that 
                                        occurs  when the container is closed.