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Introduction In my DevOps learning journey, I recently built a CI/CD pipeline using GitLab to automate the process of building, testing, pushing, and deploying a Dockerized application. This was my first hands-on experience creating a structured multi-stage pipeline, and I’m excited to share my approach! Understanding the Pipeline The image below shows my GitLab CI/CD pipeline in action: The pipeline consists of four main stages: ✅ Build - Creating the Docker image. ✅ Test - Running multiple tests in parallel. ✅ Push - Pushing the image to Docker Hub. ✅ Deploy - Deploying the application to an EC2 instance. GitLab CI/CD Configuration Here’s the .gitlab-ci.yml file I used: stages: - build - test - push - deploy build_job: stage: build script: - echo "this build is done using command " test_job: stage: test script: - echo "this is testing of out docker build" push_job: stage: push script: - echo "this" - echo "is pushing to docker hub" deploy_job: stage: deploy script: - echo "this" - echo "is deploying to EC2 instance" dev_test_job: stage: test script: - echo "tested for dev" prd_test_job: stage: test script: - echo "tested for prd" Key Features of This Pipeline

Feb 15, 2025 - 12:43

Introduction

In my DevOps learning journey, I recently built a CI/CD pipeline using GitLab to automate the process of building, testing, pushing, and deploying a Dockerized application. This was my first hands-on experience creating a structured multi-stage pipeline, and I’m excited to share my approach!

Understanding the Pipeline

The image below shows my GitLab CI/CD pipeline in action:

The pipeline consists of four main stages:

✅ Build - Creating the Docker image.

✅ Test - Running multiple tests in parallel.

✅ Push - Pushing the image to Docker Hub.

✅ Deploy - Deploying the application to an EC2 instance.

GitLab CI/CD Configuration

Here’s the .gitlab-ci.yml file I used:

stages:
    - build
    - test
    - push
    - deploy

build_job:
    stage: build
    script:
        - echo "this build is done using command "

test_job:
    stage: test
    script:
        - echo "this is testing of out docker build"

push_job:
    stage: push
    script:
        - echo  "this"
        - echo "is pushing to docker hub"

deploy_job:
    stage: deploy
    script:
        - echo  "this"
        - echo "is deploying to EC2 instance"

dev_test_job:
    stage: test
    script:
        - echo "tested for dev"

prd_test_job:
    stage: test
    script:
        - echo "tested for prd"