Testing an alternative approach to the CI

.dockerignore

@@ -3,3 +3,4 @@
 .gitignore
 .gitlab-ci.yml
 README.md
+build.sh

.gitlab-ci.yml

@@ -10,14 +10,13 @@ variables:
   CI_PROJECT_NAME: minecraft-forge
 stages:
   - build
-#  - test
-  - push
 services:
   - docker:dind
 before_script:
   - echo -n "$CI_LOGIN_PASSWORD" | docker login -u "$CI_LOGIN_USERNAME" --password-stdin
   - docker version
   - docker info
+  - apk add bash
 after_script:
   - docker logout hub.docker.com
 
@@ -25,43 +24,4 @@ after_script:
 Build:
   stage: build
   script:
-    - docker pull $CI_HUB_USERNAME/$CI_PROJECT_NAME:latest || true
+    - bash build.sh
-    - docker buildx create --use
-    - >
-      docker buildx build
-      --pull
-      --platform linux/amd64
-      --cache-from $CI_HUB_USERNAME/$CI_PROJECT_NAME:latest
-      --tag $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_SHORT_SHA
-      --push
-      .
-    - docker images
-
-# PUSH
-Push_When_Tag:
-  stage: push
-  only:
-    - tags
-  script:
-    - docker pull $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_SHORT_SHA
-    - >
-      docker tag
-      $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_SHORT_SHA
-      $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_REF_NAME
-    - >
-      docker tag
-      $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_SHORT_SHA
-      $CI_HUB_USERNAME/$CI_PROJECT_NAME:latest
-    - docker images
-    - docker push $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_REF_NAME
-    - docker push $CI_HUB_USERNAME/$CI_PROJECT_NAME:latest
-Push_Bleeding:
-  stage: push
-  script:
-    - docker pull $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_SHORT_SHA
-    - >
-      docker tag
-      $CI_HUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_SHORT_SHA
-      $CI_HUB_USERNAME/$CI_PROJECT_NAME:bleeding
-    - docker images
-    - docker push $CI_HUB_USERNAME/$CI_PROJECT_NAME:bleeding

build.sh

@@ -0,0 +1,29 @@
+#! /bin/bash
+#
+# Build the Docker image for a series of different Forge versions
+#
+
+# MC version list
+declare -a mcversions=(
+	"1.12.2"
+	"1.16.5"
+)
+
+# Forge version dictionary (we only support one version per)
+declare -A forgeversions=(
+	["1.12.2"]="14.23.5.2855"
+	["1.16.5"]="36.1.23"
+)
+
+# Build images
+docker buildx create --use
+for mc in ${mcversions[@]}; do
+	forge="${forgeversions[$mc]}"
+	echo "Building image for Minecraft $mc, Forge $forge, CI_COMMIT_REF_NAME of $CI_COMMIT_REF_NAME"
+	docker buildx build \
+		--platform linux/amd64 \
+		--tag "$CI_HUB_USERNAME/$CI_PROJECT_NAME:$mc-$forge-${CI_COMMIT_REF_NAME:=bleeding}" \
+		--push \
+		.
+done
+docker images