build: introduce stable-{variant} image tags (#3468)

.github/workflows/build-multiarch.yml

@@ -113,16 +113,18 @@ jobs:
             ${{ github.repository_owner }}/minecraft-server
             ghcr.io/${{ github.repository_owner }}/minecraft-server
           tags: |
-            # For the "main" variant, it gets the tag as-is, without suffix
-            type=ref,event=tag,enable=${{ matrix.variant == env.MAIN_VARIANT }}
-            # and each variant (including main one) gets the tag with the variant suffix, such as 2023.1.1-java17
-            type=ref,event=tag,suffix=-${{ matrix.variant }}
+            # Apply the variant as a moving tag for most recent commit per variant
+            type=raw,value=${{ matrix.variant }},enable=${{ github.ref_name == github.event.repository.default_branch }}            
+            # For the "main" variant, it gets the tag as-is
+            type=pep440,pattern={{version}},enable=${{ matrix.variant == env.MAIN_VARIANT }}
+            # ...and all variants (including main one) get the tag with the variant suffix, such as 2023.1.1-java17
+            type=pep440,pattern={{version}},suffix=-${{ matrix.variant }}
+            # latest tag gets a moving 'stable' image tag applied to the main variant
+            type=pep440,pattern=stable,enable=${{ matrix.variant == env.MAIN_VARIANT }}
+            # ...and qualified stable for all variants
+            type=pep440,pattern=stable,suffix=-${{ matrix.variant }}
             # for building test/* branch images
             type=ref,event=branch,suffix=-${{ matrix.variant }},enable=${{ github.ref_name != github.event.repository.default_branch }}
-            # latest repo tag gets a moving 'stable' image tag applied to the main variant
-            type=raw,value=stable,enable=${{ github.ref_type == 'tag' && matrix.variant == env.MAIN_VARIANT }}            
-            # apply the variant as a moving tag for most recent commit per variant
-            type=raw,value=${{ matrix.variant }},enable=${{ github.ref_name == github.event.repository.default_branch }}
             # for backward compatibility with users referencing java8-multiarch, this will set an extra label on java8
             type=raw,value=java8-multiarch,enable=${{ matrix.variant == 'java8' && github.ref_name == github.event.repository.default_branch }}
           # NOTE this identifies which variant will be published as "latest", which isn't

examples/ftba/compose.yml

@@ -12,6 +12,7 @@ services:
       # Use Pack ID from https://www.feed-the-beast.com/modpacks/119-ftb-presents-direwolf20-120?tab=about
       FTB_MODPACK_ID: "119"
 #      FTB_MODPACK_VERSION_ID: ""
+      MEMORY: 4G
     volumes:
       # use a named, managed volume for data volume
       - data:/data

scripts/start-deployMohist

@@ -9,35 +9,34 @@ isDebugging && set -x
 resolveVersion
 : "${MOHIST_BUILD:=lastSuccessfulBuild}"
 
-mohistBaseUrl="https://mohistmc.com/api/v2/projects/mohist/"
-mohistApiUrl="${mohistBaseUrl}${VERSION}/builds/"
+# Docs at https://mohistmc.com/mohistmc-api
+mohistApiUrl="https://api.mohistmc.com/project/mohist"
+mohistDownloadsPage="https://mohistmc.com/downloadSoftware?project=mohist"
 
-function logMohistAvailableVerisons(){
-  logError "       check ${mohistBaseUrl} for available versions"
-  logError "       and set VERSION accordingly"
-}
-
-if ! get --exists "${mohistApiUrl}"; then
+if ! get --exists "${mohistApiUrl}/${VERSION}/builds"; then
   logError "Mohist builds do not exist for ${VERSION}"
-  logMohistAvailableVerisons
+  logError "       check ${mohistDownloadsPage} for available versions"
+  logError "       and set VERSION accordingly"
   exit 1
 fi
 
 if [[ "${MOHIST_BUILD}" == "lastSuccessfulBuild" ]]; then
   # Get the latest build number from the API
-  buildNumber=$(
-    get --json-path '$.builds[-1].number' "${mohistApiUrl}"
-  )
+  if ! buildNumber=$(
+    get --json-path '$[0].id' "${mohistApiUrl}/${VERSION}/builds"
+  ); then
+    logError "failed to list Mohist builds for ${VERSION}"
+    exit 1
+  fi
   MOHIST_BUILD="${buildNumber}"
 fi
 
-downloadUrl=$(
-  get --json-path "$.builds[?(@.number==${MOHIST_BUILD})].url" "${mohistApiUrl}"
-)
+downloadUrl="${mohistApiUrl}/${VERSION}/builds/${MOHIST_BUILD}/download"
 
 if [[ -z "${downloadUrl}" ]]; then
   logError "Could not find build ${MOHIST_BUILD} for version ${VERSION}"
-  logMohistAvailableVerisons
+  logError "       check ${mohistDownloadsPage} for available versions"
+  logError "       and set VERSION accordingly"
   exit 1
 fi