[ci] Use gitlab container registry.

.gitlab-ci.yml

@@ -2,6 +2,12 @@ stages:
   - test
   - package
 
+variables:
+  CONTAINER_GCC_IMAGE: $CI_REGISTRY_IMAGE:gcc-$CI_COMMIT_REF_SLUG
+
+before_script:
+  - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+
 include:
   - local: '/scripts/ci/extends/container-maker-setup.yml'
   - local: '/scripts/ci/jobs/build_image.yml'

scripts/ci/jobs/build.yml

@@ -6,7 +6,7 @@ build:
     CTEST_NUM_THREADS: '4'
     CTEST_LARGE_NUM_THREADS: '3'
   image:
-    name: ogs6/gcc
+    name: $CONTAINER_GCC_IMAGE
     entrypoint:
       - '/usr/bin/env'
       - 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'

scripts/ci/jobs/build_image.yml

@@ -9,5 +9,8 @@ build_image:
     GIT_STRATEGY: fetch
   extends: .container-maker-setup
   script:
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     # --jenkins? --gui?
-    - python ThirdParty/container-maker/ogscm/cli.py -B --ogs off --pm system --cvode --cppcheck --docs --gcovr
+    - python ThirdParty/container-maker/ogscm/cli.py --build --gitlab
+      --ogs off --pm system --cvode --cppcheck --docs --gcovr
+      --tag $CONTAINER_GCC_IMAGE --upload