Add arg demo

AB-xdev · AB-xdev · commit 82c3c0892231 · 2024-04-23T14:08:01.000+02:00
diff --git a/testcontainers-advanced-imagebuilder-demo/Dockerfile b/testcontainers-advanced-imagebuilder-demo/Dockerfile
@@ -1,5 +1,6 @@
 # Stage 1: Build the dummy app
-FROM eclipse-temurin:21-jdk-alpine AS build-env
+ARG JAVA_VERSION=21
+FROM eclipse-temurin:$JAVA_VERSION-jdk-alpine AS build-env
 
 RUN apk add --no-cache git
 
