Add global .gitlab-ci.yml and monitoring .gitlab-ci.yml

# stages of the cicd pipeline

stages:

  - build

  - test

#  - deploy

# include the individual .gitlab-ci.yml of each micro-service

include: 

  - local: '/src/monitoring/.gitlab-ci.yml'

#  - local: '/src/context/.gitlab-ci.yml'

variables:

  IMAGE_NAME: 'monitoring' # name of the microservice

  IMAGE_TAG: 'latest' # tag of the container image (production, development, etc)

# build the Docker image

build monitoring:

  stage: build

  script:

    - docker build -t "$IMAGE_NAME:$IMAGE_TAG" -f ./src/$IMAGE_NAME/Dockerfile ./src/

  rules:

    - changes:

      - src/$IMAGE_NAME/**

      - .gitlab-ci.yml

# tags the Docker image

tag monitoring:

  stage: build

  script:

    - docker tag "$IMAGE_NAME:$IMAGE_TAG" "$CI_REGISTRY_IMAGE/$IMAGE_NAME:$IMAGE_TAG"

  rules:

    - changes:

      - src/$IMAGE_NAME/**

      - .gitlab-ci.yml

# push the Docker image to the gitlab Docker registry

push monitoring:

  stage: build

  before_script:

    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY

  script:

    - docker push "$CI_REGISTRY_IMAGE/$IMAGE_NAME:$IMAGE_TAG"

  rules:

    - changes:

      - src/$IMAGE_NAME/**

      - .gitlab-ci.yml

# test if the Docker image can be pulled from the gitlab registry

test monitoring pull:

  stage: test

  needs:

    - push monitoring

  before_script:

    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY

  script:

    - docker pull "$CI_REGISTRY_IMAGE/$IMAGE_NAME:$IMAGE_TAG"

  rules:

    - changes:

      - src/$IMAGE_NAME/**

      - .gitlab-ci.yml

# test if the Docker image can be executed

test monitoring run:

  stage: test

  needs:

    - build monitoring

  script:

    - docker network create -d bridge teraflowbridge

    - docker run -d -p 7070:7070 --name monitoring --network=teraflowbridge --rm "$IMAGE_NAME:$IMAGE_TAG"

    - sleep 5

    - docker ps | grep monitoring > deploy_test_report.txt

  after_script:

    - docker stop monitoring

    - docker network rm teraflowbridge

  rules:

    - changes:

      - src/$IMAGE_NAME/**

      - .gitlab-ci.yml

  artifacts:

    when: always

    paths:

      - deploy_test_report.txt

    expire_in: 1 day

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