Optimize Dockerfile

Author: ak-git

Dockerfile

@@ -5,14 +5,15 @@ FROM openjdk:24-jdk-slim@sha256:df6c3a966c372fa314ec0dc428bf27f8aa28316a173d3d6e
 RUN groupadd -g 1234 customgroup && \
     useradd -m -u 1234 -g customgroup customuser
 
-# Switch to the custom user
-USER customuser
 # Set the directory for executing future commands
 WORKDIR /home/customuser
 
-# Copy the app files from host machine to image filesystem
-COPY helidon/build/distributions/helidon-*.tar .
-RUN tar -xvf helidon-*.tar && rm helidon-*.tar && mv helidon-* app
+# Extract from .tar and copy the app files from host machine to image filesystem
+ADD helidon/build/distributions/helidon-*.tar .
+RUN mv helidon-* app && chown -R customuser:customgroup app
+
+# Switch to the custom user
+USER customuser
 
 # Run the Main class
 # https://docs.docker.com/reference/build-checks/json-args-recommended/

README.md

@@ -51,7 +51,7 @@ curl -X PUT -d 'Howdy' http://localhost:8080/greet/greeting
 ### Update version and add git tag
 
 ```shell
-git tag 2025.02
+git tag 2025.08
 ```
 
 ## Update dependencies