Ravi Agheda
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GitHub Action with EC2 using SSH
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GitHub Action with EC2 using SSH

Tags
GitHub
AWS
SSH
Web Dev
Published
Published August 25, 2023
Author
It's pretty easy to set up GitHub action with AWS EC2 for deployments using SSH key, follow these 3 breakdowns to implement the pipeline.

1. Generate SSH Key

cd ~/.ssh
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
Enter file name: "key_name"
ls and list out files of the .ssh folder, you should be seeing "key_name" and "key_name.pub"
  • Add public key to authorised keys
cat github-actions.pub >> ~/.ssh/authorized_keys
For detailed information on SSH Key generation process check this reference: https://zellwk.com/blog/github-actions-deploy/

2. Set Github Secrets

SSH_PRIVATE_KEY: private key that we created on ec2
HOST_NAME / IP_ADDRESS: Elastic IP or IP of EC2
USER_NAME: user name of the ec2 user.

3. Create a branch_name.yml ( for dev branch dev.yml ) file under .github/workflows

Update the dev to your branch name
name: Deploy

on:
  push:
    branches: [ dev ]

jobs:
  Deploy:
    name: Deploy to EC2
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - name: Build & Deploy
        env:
            PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
            HOSTNAME: ${{secrets.SSH_HOST}}
            USER_NAME: ${{secrets.USER_NAME}}

        run: |
          echo "$PRIVATE_KEY" > private_key && chmod 600 private_key
          ssh -o StrictHostKeyChecking=no -i private_key ${USER_NAME}@${HOSTNAME} '

              # Now we have got the access of EC2 and we will start the deploy .
              cd /home/ubuntu/<PROJECT_DIRECTORY> &&
              git checkout dev &&
              git fetch --all &&
              git reset --hard origin/dev &&
              git pull origin dev &&
              sudo npm i &&
              sudo npm run build &&
              sudo pm2 stop ./dist/index.js &&
              sudo pm2 start ./dist/index.js
              '
Gist Ref: https://gist.github.com/raviagheda/c69ae5e884f4490b1af656dbd80c00dd
 
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