docker-workshop

A challange

1. Prepare Hellow World application using your technology stack
2. Build Dokerfile for it
3. Setup Docker repository for images
4. Setup Jenkins using docker
5. Build your docker image using a Jenkins pipeline

Managing containers commnads

$ docker run container:version

[overvrite CMD with /bin/sh]

$ docker run -ti container:version /bin/sh

[mount volume]

$ docker run -v local_dir:/container_dir/ container:version

[expose ports]

$ docker run p 50000:50000 container:version

[add custom name to container]

$ docker run -n my_name container:version

[clean when container is done]

$ docker run --rm container:version

[daemon]

$ docker run -b container:version

[listing running containers]

$ docker ps $ docker ps -a

$ docker stop container_name $ docker kill container_name

$ docker rm container_name

Building docker image

https://docs.docker.com/engine/reference/commandline/build/

$ docker build -t my-image:latest .

Dockerfile:

FROM RUN COPY/ADD CMD/EXEC

Check: https://hub.docker.com/search?q=&type=image Interesting images: popular applications (nginx, mysql, etc.); linux distros: centos, alpine etc.

Running jenkins:

docker run -d -v jenkins_home:/var/jenkins_home -p 8080:8080 -p 50000:50000 jenkins/jenkins:lts

Running repository:

https://docs.docker.com/registry/deploying/

$ docker run -d -p 5000:5000 --restart=always --name registry registry:2

check: http://localhost:5000/v2/_catalog

Pushing image to repository:

docker pull ubuntu:16.04 docker tag ubuntu:16.04 localhost:5000/my-ubuntu docker push localhost:5000/my-ubuntu

Running Jenkins with Docker build support

$ git clone https://github.com/mcj-krs/docker-workshop then check jenkins-with-docker