Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -20,12 +20,16 @@ stages:          # List of stages for jobs, and their order of execution
 
 build-job:       # This job runs in the build stage, which runs first.
   stage: build
+  tags:
+    - linux
   script:
     - echo "Compiling the code..."
     - echo "Compile complete."
 
 unit-test-job:   # This job runs in the test stage.
   stage: test    # It only starts when the job in the build stage completes successfully.
+  tags:
+    - linux
   script:
     - echo "Running unit tests... This will take about 60 seconds."
     - sleep 60
@@ -33,6 +37,8 @@ unit-test-job:   # This job runs in the test stage.
 
 lint-test-job:   # This job also runs in the test stage.
   stage: test    # It can run at the same time as unit-test-job (in parallel).
+  tags:
+    - linux
   script:
     - echo "Linting code... This will take about 10 seconds."
     - sleep 10
@@ -40,6 +46,8 @@ lint-test-job:   # This job also runs in the test stage.
 
 deploy-job:      # This job runs in the deploy stage.
   stage: deploy  # It only runs when *both* jobs in the test stage complete successfully.
+  tags:
+    - linux
   script:
     - echo "Deploying application..."
     - echo "Application successfully deployed."