93 lines
4.6 KiB
Markdown
93 lines
4.6 KiB
Markdown
# Supported tags and respective `Dockerfile` links
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- [`openjdk-6b33-jdk`, `openjdk-6b33`, `openjdk-6-jdk`, `openjdk-6`, `6b33-jdk`, `6b33`, `6-jdk`, `6` (*openjdk-6-jdk/Dockerfile*)](https://github.com/docker-library/java/blob/8b20818d91705361ff42b597369620680d0af98c/openjdk-6-jdk/Dockerfile)
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- [`openjdk-6b33-jre`, `openjdk-6-jre`, `6b33-jre`, `6-jre` (*openjdk-6-jre/Dockerfile*)](https://github.com/docker-library/java/blob/d63214d23aad827190c599e23351bd0bdd7dcadc/openjdk-6-jre/Dockerfile)
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- [`openjdk-7u71-jdk`, `openjdk-7u71`, `openjdk-7-jdk`, `openjdk-7`, `7u71-jdk`, `7u71`, `7-jdk`, `7`, `jdk`, `latest` (*openjdk-7-jdk/Dockerfile*)](https://github.com/docker-library/java/blob/8b20818d91705361ff42b597369620680d0af98c/openjdk-7-jdk/Dockerfile)
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- [`openjdk-7u71-jre`, `openjdk-7-jre`, `7u71-jre`, `7-jre`, `jre` (*openjdk-7-jre/Dockerfile*)](https://github.com/docker-library/java/blob/d63214d23aad827190c599e23351bd0bdd7dcadc/openjdk-7-jre/Dockerfile)
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- [`openjdk-8u40-b09-jdk`, `openjdk-8u40-b09`, `openjdk-8u40-jdk`, `openjdk-8u40`, `openjdk-8-jdk`, `openjdk-8`, `8u40-b09-jdk`, `8u40-b09`, `8u40-jdk`, `8u40`, `8-jdk`, `8` (*openjdk-8-jdk/Dockerfile*)](https://github.com/docker-library/java/blob/68c66124d85712115f1aefa0c60e766ac8e7da66/openjdk-8-jdk/Dockerfile)
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- [`openjdk-8u40-b09-jre`, `openjdk-8u40-jre`, `openjdk-8-jre`, `8u40-b09-jre`, `8u40-jre`, `8-jre` (*openjdk-8-jre/Dockerfile*)](https://github.com/docker-library/java/blob/d63214d23aad827190c599e23351bd0bdd7dcadc/openjdk-8-jre/Dockerfile)
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For more information about this image and its history, please see the [relevant
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manifest file
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(`library/java`)](https://github.com/docker-library/official-images/blob/master/library/java)
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in the [`docker-library/official-images` GitHub
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repo](https://github.com/docker-library/official-images).
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# What is Java?
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Java is a concurrent, class-based, object-oriented language specifically
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designed to have as few implementation dependencies as possible. It is intended
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to allow application developers to "write once, run anywhere", meaning that code
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that runs on one platform does not need to be recompiled to run on another.
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Java is a registered trademark of Oracle and/or its affiliates.
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> [wikipedia.org/wiki/Java_(programming_language)](http://en.wikipedia.org/wiki/Java_(programming_language))
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# How to use this image
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## Start a Java instance in your app
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The most straightforward way to use this image is to use a Java container as
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both the build and runtime environment. In your `Dockerfile`, writing something
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along the lines of the following will compile and run your project:
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FROM java:7
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COPY . /usr/src/myapp
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WORKDIR /usr/src/myapp
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RUN javac Main.java
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CMD ["java", "Main"]
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You can then run and build the Docker image:
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docker build -t my-java-app .
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docker run -it --rm --name my-running-app my-java-app
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## Compile your app inside the Docker container
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There may be occasions where it is not appropriate to run your app inside a
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container. To compile, but not run your app inside the Docker instance, you can
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write something like:
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docker run --rm -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp java:7 javac Main.java
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This will add your current directory as a volume to the container, set the
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working directory to the volume, and run the command `javac Main.java` which
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will tell Java to compile the code in `Main.java` and output the Java class file
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to `Main.class`.
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# License
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View [license information](http://openjdk.java.net/legal/gplv2+ce.html)
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for the software contained in this image.
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# Supported Docker versions
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This image is officially supported on Docker version 1.4.1.
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Support for older versions (down to 1.0) is provided on a best-effort basis.
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# User Feedback
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## Issues
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If you have any problems with or questions about this image, please contact us
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through a [GitHub issue](https://github.com/docker-library/java/issues).
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You can also reach many of the official image maintainers via the
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`#docker-library` IRC channel on [Freenode](https://freenode.net).
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## Contributing
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You are invited to contribute new features, fixes, or updates, large or small;
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we are always thrilled to receive pull requests, and do our best to process them
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as fast as we can.
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Before you start to code, we recommend discussing your plans
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through a [GitHub issue](https://github.com/docker-library/java/issues), especially for more ambitious
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contributions. This gives other contributors a chance to point you in the right
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direction, give you feedback on your design, and help you find out if someone
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else is working on the same thing.
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