simplify dockerfiles

docker/backend.Dockerfile

@@ -1,9 +1,7 @@
-ARG APP_IMAGE=ghcr.io/ocelot-social-community/ocelot-social/backend
 ARG APP_IMAGE_TAG_BASE=latest-base
 ARG APP_IMAGE_TAG_CODE=latest-code
-ARG APP_IMAGE_BASE=${APP_IMAGE}:${APP_IMAGE_TAG_BASE}
-ARG APP_IMAGE_CODE=${APP_IMAGE}:${APP_IMAGE_TAG_CODE}
-FROM $APP_IMAGE_CODE AS build
 
-FROM $APP_IMAGE_BASE AS branded
+FROM ghcr.io/ocelot-social-community/ocelot-social/backend:${APP_IMAGE_TAG_CODE} AS build
+
+FROM ghcr.io/ocelot-social-community/ocelot-social/backend:${APP_IMAGE_TAG_BASE} AS branded
 COPY --from=build /build .

docker/maintenance.Dockerfile

@@ -1,40 +1,7 @@
-ARG APP_IMAGE=ghcr.io/ocelot-social-community/ocelot-social/maintenance
-ARG APP_IMAGE_TAG_BASE=latest-base
 ARG APP_IMAGE_TAG_CODE=latest-code
-ARG APP_IMAGE_BASE=${APP_IMAGE}:${APP_IMAGE_TAG_BASE}
-ARG APP_IMAGE_CODE=${APP_IMAGE}:${APP_IMAGE_TAG_CODE}
 
-##################################################################################
-# CODE (branded) #################################################################
-##################################################################################
-FROM $APP_IMAGE_CODE AS code
+FROM ghcr.io/ocelot-social-community/ocelot-social/maintenance:${APP_IMAGE_TAG_CODE} as build
 
-# copy public constants into the Docker image to brand it
-COPY ./branding/static/ static/
-COPY ./branding/constants/ constants/
-RUN /bin/sh -c 'cd constants && for f in *.ts; do mv -- "$f" "${f%.ts}.js"; done'
-
-# locales
-COPY ./branding/locales/*.json locales/tmp/
-RUN tools/merge-locales.sh
-
-##################################################################################
-# BUILD ##########################################################################
-##################################################################################
-FROM code AS build
-
-# yarn install
-## unnicely done in $APP_IMAGE_CODE at the moment, see main repo
-# RUN yarn install --production=false --frozen-lockfile --non-interactive
-# yarn generate
-RUN yarn run generate
-
-##################################################################################
-# BRANDED ### TODO # TODO # TODO # TODO # TODO # TODO # TODO # TODO # TODO ####
-##################################################################################
-# FROM $APP_IMAGE_BASE AS branded
 FROM nginx:alpine AS branded
-
 COPY --from=build ./app/dist/ /usr/share/nginx/html/
-RUN rm /etc/nginx/conf.d/default.conf
-COPY --from=code ./app/maintenance/nginx/custom.conf /etc/nginx/conf.d/
+COPY --from=build ./app/maintenance/nginx/custom.conf /etc/nginx/conf.d/default.conf

docker/webapp.Dockerfile

@@ -1,48 +1,7 @@
-ARG APP_IMAGE=ghcr.io/ocelot-social-community/ocelot-social/webapp
 ARG APP_IMAGE_TAG_BASE=latest-base
 ARG APP_IMAGE_TAG_CODE=latest-code
-ARG APP_IMAGE_BASE=${APP_IMAGE}:${APP_IMAGE_TAG_BASE}
-ARG APP_IMAGE_CODE=${APP_IMAGE}:${APP_IMAGE_TAG_CODE}
 
-##################################################################################
-# CODE (branded) #################################################################
-##################################################################################
-FROM $APP_IMAGE_CODE AS code
+FROM ghcr.io/ocelot-social-community/ocelot-social/webapp:${APP_IMAGE_TAG_CODE} AS build
 
-# locales
-RUN tools/merge-locales.sh
-
-##################################################################################
-# BUILD ##########################################################################
-##################################################################################
-FROM code AS build
-
-# yarn install
-RUN yarn install --production=false --frozen-lockfile --non-interactive
-# yarn build
-RUN yarn run build
-
-##################################################################################
-# BRANDED (Does contain only "binary"- and static-files to reduce image size) ####
-##################################################################################
-FROM $APP_IMAGE_BASE AS branded
-
-# TODO - do all copying with one COPY command to have one layer
-# Copy "binary"-files from build image
-COPY --from=build ${DOCKER_WORKDIR}/.nuxt ./.nuxt
-COPY --from=build ${DOCKER_WORKDIR}/node_modules ./node_modules
-COPY --from=build ${DOCKER_WORKDIR}/nuxt.config.js ./nuxt.config.js
-# Copy static files
-# TODO - this seems not be needed anymore for the new rebranding
-# TODO - this should be one Folder containign all stuff needed to be copied
-COPY --from=build ${DOCKER_WORKDIR}/config/ ./config/
-COPY --from=build ${DOCKER_WORKDIR}/constants ./constants
-COPY --from=build ${DOCKER_WORKDIR}/static ./static
-COPY --from=build ${DOCKER_WORKDIR}/locales ./locales
-COPY --from=build ${DOCKER_WORKDIR}/assets/styles/imports ./assets/styles/imports
-COPY --from=build ${DOCKER_WORKDIR}/assets/fonts ./assets/fonts
-# Copy package.json for script definitions (lock file should not be needed)
-COPY --from=build ${DOCKER_WORKDIR}/package.json ./package.json
-
-# Run command
-CMD /bin/sh -c "yarn run start"
+FROM ghcr.io/ocelot-social-community/ocelot-social/webapp:${APP_IMAGE_TAG_BASE} AS branded
+COPY --from=build /build .