Deploy Python App on K8s Cluster Using Jenkins Pipeline

• This project is to build Jenkins EC2 on AWS and use Jenkins to run 3 Jenkins files to create a cluster then deploy our python application on it, and Finally destroy all build resources

Used tools:

• Terraform
• Jenkins
• K8s
• Docker
• Aws

Step 1: Jenkins EC2:

NOTE: Make sure you have terraform installed, create terraform.tfvars file with the variables (ec2-ami, region & your public ssh key) then do the following:

cd terraform

terraform init

terraform apply -auto-approve

Step 2: Prerequisites:

NOTE: replace the public-ip with the instance_public_ip that will showup in terraform output

ssh ubuntu@public-ip

vim install.sh

chmod +x install.sh

./install.sh

Step 3: Setup Jenkins:

1. Navigate to Manage Jenkins >> Manage Plugins >> Available tab >> search for CloudBees AWS Credentials >> Install without Restart

2. Navigate to Manage Jenkins >> Manage Credentials >> global >> Global Credentials >> Add Credentials

3. Add AWS Credentials, repeat step 2 again to add Github credentials

Step 4: Create Jenkins Pipeline:

1. Navigate to Dashboard >> Create a Job

2. Give it a name >> Choose Pipeline

3. Pipeline Tab >> Choose Pipeline Script from SCM >> Choose Git >> Add Repository URL >> Add Credentails >> Specify the Branch >> Then the Jenkinsfile path inside the repository

4. Run the created job >> Create 2 similar jobs that navigate to Jenkins-Deploy/Jenkinsfile that will run automatically after Job one is done and Jenkins-RM-EKS/Jenkinsfile that you will use to remove your cluster

Step 5: Access your application:

Note: After the 2nd Jenkins job run and the application is deployed

Navigate to the 2nd job >> Console Output >> Get your Application URL which you will found in the end next to DNSNAME.

It should look something like this (use the application port to access your app, we used here port 8000 ):

a0e6e955cb648xxxxxxxxxxxx-xxxxxx025.REGION.elb.amazonaws.com:8000