ci-cd-tutorial

Set up build and release job on Jenkins

Click on New Item

Enter docker-build as the job name and select Freestyle project, and in Copy from at the bottom, enter simple-build and click OK button.

In Source Code Management (second tab on left) -> Git -> Repositories -> Repository URL, change repo to https://github.com/kurianinc/docker-curriculum.git. In Branches to build, also in Source Code Management, change branches to build to */master.

In Build (second rightmost tab) -> Execute shell -> Command enter the following commands, make changes specific to your setup as needed:

Edit the following with your Docker Username and Password

cd flask-app
sudo docker build -t YOUR-DOCKER-USERNAME/catnip .
sudo docker login --username=YOUR-DOCKER-USERNAME --password=YOUR-DOCKER-PASSWORD
sudo docker push YOUR-DOCKER-USERNAME/catnip

Click Save.

This job will ensure that everytime a change is checked in the Docker image is rebuilt and pushed that to Docker Hub.

Set up app deployment job Jenkins

Click on New Item

Enter deploy-app as the job name and select Freestyle project. Click OK button.

Under General -> This project is parameterized:

• Add Parameter -> pull down String Parameter, enter Name as appserver and Default Value as 54.186.127.91.
• Add Parameter -> pull down String Parameter, enter Name as portnum.

Under Build (second rightmost tab) -> Execute shell -> Command, enter following commandline with correct image name:

sudo -u devops ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no ${appserver} docker run -d -P -p ${portnum}:5000 YOUR-DOCKER-USERNAME/catnip

Click Save.

And now to test it, from the Dashboard, click deploy-app, on the left sidebar, go to Build with Parameters, then specify a portnum (ex. a portnum between 9000-9050), and click the Build button and a build should be started in your Build History. You can also check testing it in the browser at http://54.186.127.91:PORTNUM/