Git- Lab Stages with Examples

 Git lab has 5 stages.

1. .pre (always runs at the beginning of CICD)

2. build

3. test (Default stage)

4. deploy

5. .post(always runs at the end of CI/CD)

Example1 To Run the sequential jobs using stages.

stages:
  - build
  - test
  - deploy
build:
    stage: build
    script: 
        - echo "Build Stage"
test:
    stage: test
    script:
        - echo "Test Stage"        
deploy:
    stage: deploy
    script:
        - echo "Deploy Stage" 

Example2 :-Run the parallel jobs for the stage test. There is a new job newtest is introduced, when you run this pipeline script then you can see that there are 2 parallel jobs running in the test stage.

stages:
  - build
  - test
  - deploy
build:
    stage: build
    script: 
        - echo "Build Stage"
test:
    stage: test
    script:
        - echo "Test Stage"        
newtest:
    stage: test
    script:
        - echo "parallel run Stage"          
deploy:
    stage: deploy
    script:
        - echo "Deploy Stage"   

Example 3 Executing the jobs in default order.

prejob:
    stage: .pre
    script:
        - echo "prestage"
build:
    stage: build
    script: 
        - echo "Build Stage"
test:
    stage: test
    script:
        - echo "Test Stage"        
       
deploy:
    stage: deploy
    script:
        - echo "Deploy Stage"        
postjob:
    stage: .post
    script:
        - echo "post Stage"

Example 4 : Run the jobs in the defined order in stages section.

stages:
    - test
    - deploy
    - build
prejob:
    stage: .pre
    script:
        - echo "prestage"
build:
    stage: build
    script: 
        - echo "Build Stage"
test:
    stage: test
    script:
        - echo "Test Stage"        
       
deploy:
    stage: deploy
    script:
        - echo "Deploy Stage"        
postjob:
    stage: .post
    script:
        - echo "post Stage"

Note:-

if you forget to define the stage in stages section and use it in the job then it will throw the error.