Supported tags and respective
What is Go?
Go (a.k.a., Golang) is a programming language first developed at Google. It is a statically-typed language with syntax loosely derived from C, but with additional features such as garbage collection, type safety, some dynamic-typing capabilities, additional built-in types (e.g., variable-length arrays and key-value maps), and a large standard library.
How to use this image
Start a Go instance in your app
The most straightforward way to use this image is to use a Go container as both the build and runtime environment. In your
Dockerfile, writing something along the lines of the following will compile and run your project:
This image includes multiple
ONBUILD triggers which should cover most applications. The build will
COPY . /usr/src/app,
RUN go get -d -v, and
RUN go install -v.
This image also includes the
CMD ["app"] instruction which is the default command when running the image without arguments.
You can then build and run the Docker image:
docker build -t my-golang-app . docker run -it --rm --name my-running-app my-golang-app
Compile your app inside the Docker container
There may be occasions where it is not appropriate to run your app inside a container. To compile, but not run your app inside the Docker instance, you can write something like:
docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.3 go build -v
This will add your current directory as a volume to the container, set the working directory to the volume, and run the command
go build which will tell go to compile the project in the working directory and output the executable to
myapp. Alternatively, if you have a
Makefile, you can run the
make command inside your container.
docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.3 make
Cross-compile your app inside the Docker container
If you need to compile your application for a platform other than
linux/amd64 (such as
windows/386), this can be easily accomplished with the provided
docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 golang:1.3-cross go build -v
Alternatively, you can build for multiple platforms at once:
docker run --rm -it -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.3-cross bash $ for GOOS in darwin linux; do > for GOARCH in 386 amd64; do > go build -v -o myapp-$GOOS-$GOARCH > done > done
golang images come in many flavors, each designed for a specific use case.
This is the defacto image. If you are unsure about what your needs are, you probably want to use this one. It is designed to be used both as a throw away container (mount your source code and start the container to start your app), as well as the base to build other images off of. This tag is based off of
buildpack-deps is designed for the average user of docker who has many images on their system. It, by design, has a large number of extremely common Debian packages. This reduces the number of packages that images that derive from it need to install, thus reducing the overall size of all images on your system.
This image makes building derivative images easier. For most use cases, creating a
Dockerfile in the base of your project directory with the line
FROM golang:onbuild will be enough to create a stand-alone image for your project.
View license information for the software contained in this image.
Supported Docker versions
This image is officially supported on Docker version 1.6.2.
Support for older versions (down to 1.0) is provided on a best-effort basis.
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