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README.md

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Java maven project

Build Project

mvn clean mvn package

Build Custom Docker image

Create custom image

  1. build my image

    • docker build -t <tag_name> <path_to_dockerfile> --> docker build -t tomcat_1 .

  2. Run

    • docker run <image_name>
    • docker run -d <image_name>
      • docker run -d tomcat_1
    • docker run -d -p <local_port>:<container_port> <image_name>
    • we also run multiple container with same image
      • docker run -dp 8000:8080 tomcat_1
      • docker run -dp 8001:8080 tomcat_1

  3. login to container

    • docker exec -it <container_id> /bin/bash

  4. Docker Push and Pull Own Images

    • To Push into Docker hub, login to docker with your docker credentials

      • docker login
      • docker image tag tomcat_1:latest seetha123/pac_tomcat:latest
      • docker image push seetha123/pac_tomcat:latest

    • Pull image from docker hub

      • docker pull seetha123/pac_tomcat
      • docker run -dp 8080:8080 seetha123/pac_tomcat

Jenkinsfile

- Build tomcat application - custom docker image
- Push into docker hub registry
- SSH into Docker host 
    - pull latest tomcat custom image from docker hub registry
    - run the tomcat container