Deploy Java Application to AWS Elastic Beanstalk using the GitLab CI

In this article we are going to cover Deploy Java Application to AWS Elastic Beanstalk using the GitLab CI.

Here we need to do two things. First of all we need to create a new application version. And second thing we need to update the environment.

So here you can see our application is api-deploy-example and we have created an environment called Apideployexample-env 

#1:Install Gitlab-Runner 

Visit the official GitLab Runner page to install latest GitLab Runner

https://docs.gitlab.com/runner/install/linux-repository.html

Step 1: Add the official GitLab repository:

curl -L "https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh" | sudo bash

Step 2: To Install the latest version of GitLab Runner,

sudo apt-get install gitlab-runner

OR

To install specific version of GitLab Runner –

apt-cache madison gitlab-runner
sudo apt-get install gitlab-runner=10.0.0
sudo gitlab-runner -version
sudo gitlab-runner status

#2:Add gitlab-runner and user in root using below commands

sudo visudo 

gitlab-runner ALL=(ALL:ALL) ALL
ubuntu ALL=(ALL:ALL) ALL

#3:Register Gitlab Runner

Step 1: firstly run the the command : sudo gitlab-runner register

Step 2: Then enter the URL https://gitlab.com/ (copy from gitlab account ).

Step 3: Then Enter the registration token  so firstly

• Go to the GitLab Account
• Click on Project
• Then click on setting and in below click on CI/CD
• Click on Runner Expand  scroll down and copy registration token
• And paste on command

Step 4: Then you can give any meaning full description

Step 5: Then Enter tags for the runner (any tag)

Step 6: Then choose any executor – shell , ssh , docker , etc.

#4:Install OpenJDK on Ubuntu 20.04 LTS

Update System packages:

sudo apt update

Install OpenJDK:

sudo apt install default-jdk -y

To Check Java Version

java --version

#5. Install AWS CLI

sudo apt install awscli

#5:Create new Bucket in AWS

Firstly search S3 and go ti buckets then click on create bucket

Then enter unique name because bucket name must be unique and not contain spaces or uppercase letters

Then remaining keep as it is and click on create bucket

#6:Create new User in AWS

Firstly go to IAM<<Users<<Add users

Now enter user name and select Aws credential type so here i will choose Access key

Then here click on Attach existing policies directly then select Amazons3FullAccess and AWSelasticBeanstalk

Next step is add tags so i don’t want to add any tag so skip and then review once 

Now here you can see Access key ID or Secret access key now you can download.

#7:Creating variables inside gitlab 

Go to settings<<CI/CD<<variables<<Expand it

#Add bucket name in $S3_BUCKET variable
#Add secret key in $AWS_SECRET_ACCESS_KEY_ variable
#Add access key in $AWS_ACCESS_KEY_ID variable

When creating variables you have to remove protect variable flag

#8:Deploy Java Application to AWS Elastic Beanstalk using the GitLab

Below is .gitlab-ci.yml file to Deploy Java Application to AWS Elastic Beanstalk using the GitLab

variables:
  ARTIFACT_NAME: AWS-0.0.1-SNAPSHOT-v$CI_PIPELINE_IID.jar
  APP_NAME: api-deploy-example
stages:
  - build
  - deploy
  
build:
  stage: build
  image: openjdk:12-alpine
  script:
    - ./gradlew build
    -  mv ./build/libs/AWS-0.0.1-SNAPSHOT.jar ./build/libs/$ARTIFACT_NAME
  artifacts:
    paths:
      - ./build/libs/

deploy:
  stage: deploy
  image:
    name: banst/awscli
    entrypoint: [""]
  script:
    - aws configure set region ap-south-1
    - aws s3 cp /home/gitlab-runner/builds/xvXKhe5J/0/devopshint/aws-elastic-beanstalk/build/libs/$ARTIFACT_NAME s3://$S3_BUCKET/$ARTIFACT_NAME 
    - aws elasticbeanstalk create-application-version --application-name $APP_NAME --version-label $CI_PIPELINE_IID --source-bundle S3Bucket=$S3_BUCKET,S3Key=$ARTIFACT_NAME
    - aws elasticbeanstalk update-environment --application-name $APP_NAME --environment-name "Apideployexample-env" --version-label=$CI_PIPELINE_IID

#9:Permission denied ./gradlew

git clone

cd project name

ls -l gradlew

chmod +x gradlew

git update-index --chmod=+x gradlew

git add .

git commit -m "Update execute permission for gradlew command".

git push

Here you can see here is our final output

So here we have running application version 3 and now we have successfully updated

Conclusion:

In this article we have covered Deploy Java Application to AWS Elastic Beanstalk using the GitLab CI.

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Reference:

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