Use YAML anchors to increase maintainability of CI config

.gitlab-ci.yml

@@ -25,7 +25,7 @@ stages:
   - test
   - deploy
 
-setup:dune-env:
+setup:dune-env: &setup
   stage: setup
   only:
     - web # activate through 'Run pipeline' only.
@@ -45,19 +45,11 @@ setup:dune-env:
     - docker push $DUNE_ENV_IMAGE
 
 prep:update-dune:
+  <<: *setup
   stage: prep
   only:
     - master
     - tags
-  tags:
-    - dind
-  image: docker:stable
-  services:
-    - docker:dind
-  variables:
-    DOCKER_DRIVER: overlay2
-  before_script:
-    - $DOCKER_LOGIN
   script:
     - docker build -f docker/dune-env-update.dockerfile
       --build-arg DUNE_ENV_IMAGE=$DUNE_ENV_IMAGE --build-arg PROCNUM=$CPUS_DIND
@@ -95,7 +87,7 @@ build:debug:
     - MAKE_FLAGS="$MAKE_FLAGS"
       $DUNECONTROL --only=dorie make build_tests
 
-test:exec_cmds:
+test:exec_cmds: &test
   stage: test
   dependencies:
     - build:main
@@ -109,60 +101,30 @@ test:exec_cmds:
     expire_in: 1 day
 
 test:ode:
-  stage: test
-  dependencies:
-    - build:main
+  <<: *test
   script:
     - $DUNECONTROL --only=dorie configure
     - $DUNECONTROL --only=dorie make test_run_ode
-  artifacts:
-    name: "$CI_JOB_NAME"
-    paths:
-      - $CI_PROJECT_DIR/build-cmake/Testing
-    expire_in: 1 day
 
 test:parallel:
-  stage: test
-  dependencies:
-    - build:main
-  tags:
-    - multicore
+  <<: *test
   script:
     - $DUNECONTROL --only=dorie configure
     - $DUNECONTROL --only=dorie make test_run_parallel
-  artifacts:
-    name: "$CI_JOB_NAME"
-    paths:
-      - $CI_PROJECT_DIR/build-cmake/Testing
-    expire_in: 1 day
 
 test:reference:
-  stage: test
-  dependencies:
-    - build:main
+  <<: *test
   script:
     - $DUNECONTROL --only=dorie configure
     - $DUNECONTROL --only=dorie make test_run_ref
-  artifacts:
-    name: "$CI_JOB_NAME"
-    paths:
-      - $CI_PROJECT_DIR/build-cmake/Testing
-    expire_in: 1 day
 
 test:mass_conserve:
-  stage: test
-  dependencies:
-    - build:main
+  <<: *test
   script:
     - $DUNECONTROL --only=dorie configure
     - $DUNECONTROL --only=dorie make test_mass_conservation
-  artifacts:
-    name: "$CI_JOB_NAME"
-    paths:
-      - $CI_PROJECT_DIR/build-cmake/Testing
-    expire_in: 1 day
 
-deploy:dockerhub-devel:
+deploy:dockerhub-devel: &deploy
   stage: deploy
   only:
     - master@dorie/dorie
@@ -182,18 +144,9 @@ deploy:dockerhub-devel:
     - docker push dorie/dorie:devel
 
 deploy:dockerhub-stable:
-  stage: deploy
+  <<: *deploy
   only:
     - tags@dorie/dorie
-  tags:
-    - dind
-  image: docker:stable
-  services:
-    - docker:dind
-  variables:
-    DOCKER_DRIVER: overlay2
-  before_script:
-    - $DOCKER_LOGIN
   script:
     - docker build -f docker/dorie.dockerfile
       --build-arg DUNE_ENV_IMAGE=$DUNE_ENV_IMAGE --build-arg PROCNUM=$CPUS_DIND