rmdamascenorep/openjdk repository overview

⁠OpenJDK Alpine Images

Optimized OpenJDK images built on Alpine Linux 3.19 for minimal size and maximum security.

⁠🏷️ Available Tags

• alpine-18, alpine-19, alpine-20 - OpenJDK 21 (mapped versions)
• alpine-21, alpine-21-lts - OpenJDK 21 LTS ⭐ (recommended)
• alpine-22, alpine-23, alpine-24, alpine-25 - OpenJDK 21 (mapped versions)

⁠🚀 Quick Start

# Run Java version
docker run --rm rmdamascenorep/openjdk:alpine-21-lts

# Use as base image
FROM rmdamascenorep/openjdk:alpine-21-lts
COPY myapp.jar /app.jar
CMD ["java", "-jar", "/app.jar"]

⁠📦 What's Included

• OpenJDK 21 (LTS version)
• Alpine Linux 3.19 base
• Optimized for production use
• JAVA_HOME configured
• Minimal attack surface

⁠🔧 Environment Variables

• JAVA_HOME=/usr/lib/jvm/java-21-openjdk
• PATH includes Java binaries

⁠📊 Image Size

~308MB (significantly smaller than Ubuntu-based images)

⁠🛡️ Security

• Regular security updates
• Minimal base image
• No unnecessary packages

⁠📝 License

OpenJDK is licensed under GPL v2 with Classpath Exception