⚡ Shrink docker image size

Author: homersimpsons

.dockerignore

@@ -1,11 +1,11 @@
-.git/
-.appends/
-.github/
-.gitattributes
-.gitignore
-Dockerfile
-bin/run-in-docker.sh
-bin/run-tests-in-docker.sh
-tests/
-output/
-open-abap/
+# Ignore everything to act as an allow list
+*
+
+# Include application files
+!bin/run.sh
+!extra/
+!src/
+!test/
+!package-lock.json
+!package.json
+!tsconfig.json

Dockerfile

@@ -1,22 +1,20 @@
-FROM node:lts-slim
+FROM node:lts-alpine
 
-RUN apt-get -y update
-RUN apt-get -y upgrade
-RUN apt-get -y install git
-RUN apt-get clean
-RUN rm -rf /var/lib/apt/lists/*
-
-
-RUN npm --version
-
-# The docker container is run without network access, so dont check for updates
+# Note: The docker container is run without network access
 ENV NO_UPDATE_NOTIFIER=true
 
 WORKDIR /opt/test-runner
 COPY . .
-RUN npm ci
-RUN npm run build
-RUN npm install @abaplint/cli -g
-RUN npm install @abaplint/transpiler-cli -g
-RUN npm install @abaplint/runtime -g
-ENTRYPOINT ["/opt/test-runner/bin/run.sh"]
+RUN apk add --no-cache --virtual .build-deps git \
+ && npm ci \
+ && npm run build \
+ && apk del .build-deps \
+ # Remove build time depencies
+ && npm prune --omit dev \
+ # FIXME: These dependencies are required globally while they are included in package.json
+ && npm install --global @abaplint/cli @abaplint/transpiler-cli @abaplint/runtime \
+ # Clean npm generated files
+ && npm cache clean --force \
+ && rm -rf /tmp/* /root/.npm
+
+ENTRYPOINT ["/opt/test-runner/bin/run.sh"]

bin/run-tests-in-docker.sh

@@ -20,6 +20,7 @@ docker run \
     --rm \
     --network none \
     --read-only \
+    --mount type=bind,source="${PWD}/bin/run-tests.sh",destination=/opt/test-runner/bin/run-tests.sh \
     --mount type=bind,src="${PWD}/tests",dst=/opt/test-runner/tests \
     --mount type=tmpfs,dst=/tmp \
     --workdir /opt/test-runner \