refactor(snackager): minimize final docker image as much as possible

snackager/Dockerfile

@@ -1,17 +1,19 @@
 ARG node_version
 
-# --- Scoper - limit used workspaces for Snackager
+# --- Scoper - Remove unused workspaces for Snackager
 FROM node:${node_version}-alpine as scoper
 WORKDIR /app
 
 # Copy repository
 COPY . .
 # Prune repository and remove unused workspaces
-RUN yarn global add [email protected] && turbo prune --docker --scope=snack-modules-packager
+RUN apk --no-cache add jq && \
+  yarn global add turbo@$(jq --raw-output '.devDependencies.turbo' package.json) && \
+  turbo prune --docker --scope=snack-modules-packager
 
 
-# --- Builder - Build Snackager
-FROM node:${node_version}-alpine as builder
+# --- Development - Prepare Snackager for development
+FROM node:${node_version}-alpine as development
 WORKDIR /app
 
 # Copy "package.json"-only repository
@@ -30,22 +32,35 @@ WORKDIR /app/snackager
 CMD ["yarn", "start"]
 
 
-# --- Production - Run Snackager in production
-FROM node:${node_version}-alpine
+# --- Deploy - Prepare Snackager for production
+FROM node:${node_version}-alpine as deploy
 WORKDIR /app
 
 # Install system dependencies
-RUN apk --no-cache add git openssh-client && npm install --global npm@^6
+RUN apk --no-cache add git openssh-client && \
+  npm install --global npm@^6
 
 # Prepare environment variables
 ARG APP_VERSION
 ENV APP_VERSION ${APP_VERSION}
 
 # Copy built repository
-COPY --from=builder /app .
+COPY --from=development /app .
+# Ensure Snackager is build, has dependencies, and remove unnecessary dependencies from workspaces
+RUN yarn build:snackager && \
+  yarn install --frozen-lockfile --production
+
+
+# --- Production - Run Snackager in production
+FROM node:${node_version}-alpine
+WORKDIR /app
+
+# Prepare environment variables
+ARG APP_VERSION
+ENV APP_VERSION ${APP_VERSION}
 
-# Ensure Snackager is built and only has production dependencies
-RUN yarn build:snackager && yarn install --frozen-lockfile --production
+# Copy deployment-ready repository
+COPY --from=deploy /app .
 
 # Setup Snackager for production
 WORKDIR /app/snackager