Merge branch 'GONRG-7392-non-root-images' into 'master'

GONRG-7392: use non-root user for images

See merge request !573

devops/gc/deploy/templates/deployment.yaml

@@ -49,7 +49,7 @@ spec:
         {{- end }}
         securityContext:
           allowPrivilegeEscalation: false
-          runAsUser: 0
+          runAsNonRoot: true
         ports:
         - containerPort: 8080
         resources:

provider/indexer-gc/cloudbuild/Dockerfile.cloudbuild

 FROM azul/zulu-openjdk:8-latest
+
 WORKDIR /app
+
 ARG PROVIDER_NAME
 ENV PROVIDER_NAME $PROVIDER_NAME
+
 ARG PORT
 ENV PORT $PORT
+
 # Copy the jar to the production image from the builder stage.
 COPY provider/indexer-${PROVIDER_NAME}/target/indexer-${PROVIDER_NAME}-*-spring-boot.jar indexer-${PROVIDER_NAME}.jar
+
+# Add a non-root user
+RUN groupadd -g 10001 -r nonroot \
+  && useradd -g 10001 -r -u 10001 nonroot
+
+# Run as non-root user
+USER 10001:10001
+
 # Run the web service on container startup.
 CMD java -Djava.security.egd=indexer:/dev/./urandom -Dserver.port=${PORT} -Dlog4j.formatMsgNoLookups=true -jar /app/indexer-${PROVIDER_NAME}.jar
-