Issue #3628: support the target otobo-web

because dedicated targes are needed in new version of OTOBO

.github/workflows/docker_image_builder.yml

@@ -65,6 +65,7 @@ jobs:
             GIT_BRANCH=${{ env.otobo_branch }}
             GIT_COMMIT=${{ env.otobo_commit }}
           tags: ${{ env.otobo_ref }}
+          target: otobo-web
           cache-from: type=gha
           cache-to: type=gha,mode=max`
 
@@ -100,5 +101,6 @@ jobs:
             GIT_BRANCH=${{ env.otobo_branch }}
             GIT_COMMIT=${{ env.otobo_commit }}
           tags: ${{ env.otobo_ref }}
+          target: otobo-web
           cache-from: type=gha
           cache-to: type=gha,mode=max`

hooks/build

@@ -17,7 +17,15 @@
 #docker -v
 #printenv
 
+# Specify the target in order to stay compatible with newer versions of OTOBO.
+# In newer version different image are built with the same Dockerfile.
+TARGET_OPTION=$(case $DOCKERFILE_PATH in
+    "otobo.web.dockerfile")                  echo "--target=otobo-web" ;;
+    *)                                       echo "" ;;
+esac)
+
 # build the Docker image
+# add the option '--progress plain' for seeing the printed output
 docker build\
  --build-arg "BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')"\
  --build-arg "DOCKER_TAG=$DOCKER_TAG"\
@@ -26,4 +34,5 @@ docker build\
  --build-arg "GIT_REPO=$(git config --get remote.origin.url)"\
  -f ./$BUILD_PATH/$DOCKERFILE_PATH\
  -t $IMAGE_NAME\
+ $TARGET_OPTION\
  ./$BUILD_PATH

otobo.web.dockerfile

@@ -11,7 +11,7 @@
 # The Debian version is explicitly set to buster, that is Debian 10.
 #
 # The Perl module installer 'cpanm' is already installed.
-FROM perl:5.32-buster
+FROM perl:5.32-buster AS otobo-web
 
 # First there is some initial setup that needs to be done by root.
 USER root