Add working GitLab CI configuration - basic deploy and test stages with SSH setup

.gitlab-ci.yml

-stages:
-  - build
+# .gitlab-ci.yml
+
+stages:
+  - deploy
   - test
 
-build:
-  stage: build
+deploy_to_production:
+  stage: deploy
+  image: alpine:latest
+  tags:
+    - jarvis
+  before_script:
+    - 'which ssh-agent || ( apk add --update --no-cache openssh-client )'
+    - eval $(ssh-agent -s)
+    - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add -
+    - mkdir -p ~/.ssh
+    - chmod 700 ~/.ssh
+    - echo "$SSH_PRIVATE_KEY" > ~/.ssh/known_hosts
+    - chmod 644 ~/.ssh/known_hosts
   script:
-    - echo "Building project"
+    - echo "Starting production deployment"
+    - echo "Connecting to server"
+    - echo "Deployment completed"
+  only:
+    - master
 
-test:
+simple_test:
   stage: test
+  image: alpine:latest
+  tags:
+    - jarvis
   script:
-    - echo "Running tests" 
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+    - echo "Starting test"
+    - echo "Test completed"
+  only:
+    - master 
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