Alpine-based Docker images with Java runtime environments and build tools.
| Image | Tag | Purpose |
|---|---|---|
| Base | ghcr.io/alkk/baseimage:latest |
Minimal Alpine with essential utilities |
| JRE 17 | ghcr.io/alkk/baseimage/jre17:latest |
Java 17 runtime |
| JRE 21 | ghcr.io/alkk/baseimage/jre21:latest |
Java 21 runtime |
| JDK 17 Builder | ghcr.io/alkk/baseimage/builder-jdk17:latest |
Java 17 build environment with Maven |
| JDK 21 Builder | ghcr.io/alkk/baseimage/builder-jdk21:latest |
Java 21 build environment with Maven |
All images support linux/amd64 and linux/arm64 architectures.
Minimal Alpine image with essential utilities for running applications.
Included packages: ca-certificates, dumb-init, su-exec, tzdata
FROM ghcr.io/alkk/baseimage:latest
COPY myapp /srv/myapp
CMD ["/srv/myapp"]Runtime images for Java applications. Include automatic privilege dropping to non-root user.
FROM ghcr.io/alkk/baseimage/jre{17,21}:latest
COPY target/myapp.jar /srv/app.jar
CMD ["java", "-jar", "/srv/app.jar"]Create /srv/init.sh to run custom initialization before your application starts:
FROM ghcr.io/alkk/baseimage/jre{17,21}:latest
COPY init.sh /srv/init.sh
COPY target/myapp.jar /srv/app.jar
CMD ["java", "-jar", "/srv/app.jar"]#!/bin/sh
# /srv/init.sh - runs before main command
echo "Initializing application..."
mkdir -p /srv/dataBuild environment images with JDK and Maven for compiling Java applications.
FROM ghcr.io/alkk/baseimage/builder-jdk{17,21}:latest AS builder
WORKDIR /build
COPY pom.xml .
COPY src ./src
RUN mvn package
FROM ghcr.io/alkk/baseimage/jre{17,21}:latest
COPY --from=builder /build/target/*.jar /srv/app.jar
CMD ["java", "-jar", "/srv/app.jar"]| Variable | Default | Description |
|---|---|---|
APP_UID |
101 |
Application user ID |
APP_GID |
990 |
Application group ID |
TZ |
Europe/Riga |
Timezone |
Run container with custom user/group IDs:
docker run -e APP_UID=1000 -e APP_GID=1000 ghcr.io/alkk/baseimage/jre{17,21}:latestdocker run -e TZ=UTC ghcr.io/alkk/baseimage/jre{17,21}:latestmake all # Build all images
make docker-baseimage # Build base image only
make docker-baseimage-jre17 # Build JRE 17 only
make docker-baseimage-jre21 # Build JRE 21 only
make docker-baseimage-jdk17-builder # Build JDK 17 builder only
make docker-baseimage-jdk21-builder # Build JDK 21 builder only
make clean # Remove all imagesMIT