Revert "Revert "Explicit everything :(""

This reverts commit 4a420fd8.

.gitlab-ci.yml

-make-targets:
-  stage: .pre
-  image: alpine:3.11
-  script:
-    - apk add curl jq
-    - curl https://api.github.com/repos/ocaml/ocaml/releases
-        | jq -r 'map(.tag_name | split(".") | {"maj":.[0:2], "pat":.}) | group_by(.maj) | .[] | max | .pat | join(".")'
-        | tail -n +3
-        > versions
-    - |
-      { for v in $(cat versions); do
-          echo "ocaml-image-$v:";
-          echo "  extends: .ocaml-image";
-          echo "  variables:";
-          echo "    OCAML_VERSION: $v";
-          echo;
-        done;
-        echo "variables:"
-        echo "  LATEST_OCAML_VERSION: $(tail -n1 versions)";
-      } > ocaml-images.yml
-  artifacts:
-    paths:
-      - ocaml-images.yml
-
-build-images:
+# make-targets:
+#   stage: .pre
+#   image: alpine:3.11
+#   script:
+#     - apk add curl jq
+#     - curl https://api.github.com/repos/ocaml/ocaml/releases
+#         | jq -r 'map(.tag_name | split(".") | {"maj":.[0:2], "pat":.}) | group_by(.maj) | .[] | max | .pat | join(".")'
+#         | tail -n +3
+#         > versions
+#     - |
+#       { for v in $(cat versions); do
+#           echo "ocaml-image-$v:";
+#           echo "  extends: .ocaml-image";
+#           echo "  variables:";
+#           echo "    OCAML_VERSION: $v";
+#           echo;
+#         done;
+#         echo "variables:"
+#         echo "  LATEST_OCAML_VERSION: $(tail -n1 versions)";
+#       } > ocaml-images.yml
+#   artifacts:
+#     paths:
+#       - ocaml-images.yml
+
+# build-images:
+#   stage: build
+#   variables:
+#   trigger:
+#     include:
+#       - local: ocaml-images-gen.yml
+#       - artifact: ocaml-images.yml
+#         job: make-targets
+#     strategy: depend
+#   only:
+#     - master
+
+
+.ocaml-image:
   stage: build
-  trigger:
-    include:
-      - local: ocaml-images-gen.yml
-      - artifact: ocaml-images.yml
-        job: make-targets
-    strategy: depend
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  script:
+  - |
+    echo "{
+      \"auths\": {
+        \"$CI_REGISTRY\": {
+          \"username\":\"$CI_REGISTRY_USER\",
+          \"password\":\"$CI_REGISTRY_PASSWORD\"
+    }}}
+    " > /kaniko/.docker/config.json
+  - /kaniko/executor --cache=true
+      --context=$CI_PROJECT_DIR
+      --dockerfile=$CI_PROJECT_DIR/Dockerfile
+      --build-arg=OCAML_VERSION=$OCAML_VERSION
+      --build-arg=LAST_REPO_UPDATE=$(date +%s)
+      --destination=$CI_REGISTRY_IMAGE:${OCAML_VERSION}
+      --destination=$CI_REGISTRY_IMAGE:${OCAML_VERSION%.*}
+      --destination=$CI_REGISTRY_IMAGE:${OCAML_VERSION%.*}-$(date +%F)
+      $(if [ "$OCAML_VERSION" = "$LATEST_OCAML_VERSION" ]; then
+          echo "--destination=$CI_REGISTRY_IMAGE:latest";
+        fi)
   only:
     - master
+
+ocaml-image-4.02.3:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.02.3
+
+ocaml-image-4.03.0:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.03.0
+
+ocaml-image-4.04.2:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.04.2
+
+ocaml-image-4.05.0:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.05.0
+
+ocaml-image-4.06.1:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.06.1
+
+ocaml-image-4.07.1:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.07.1
+
+ocaml-image-4.08.1:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.08.1
+
+ocaml-image-4.09.1:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.09.1
+
+ocaml-image-4.10.1:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.10.1
+
+ocaml-image-4.11.1:
+  extends: .ocaml-image
+  variables:
+    OCAML_VERSION: 4.11.1
+
+variables:
+  LATEST_OCAML_VERSION: 4.11.1