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merged 6 commits into from
Mar 16, 2022
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Golang 1.18 #2123

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00dd5da
Merge pull request #1 from docker-library/master
jbleduigou May 27, 2020
eb111d9
Update Golang documentation to use latest stable version (1.14)
jbleduigou May 27, 2020
efa6ef8
Merge pull request #2 from docker-library/master
jbleduigou Apr 27, 2021
0a87008
Merge branch 'docker-library:master' into master
jbleduigou Sep 8, 2021
539a9cd
Merge branch 'docker-library:master' into master
jbleduigou Mar 15, 2022
435bcfc
Update Golang documentation to use latest stable version (1.18)
jbleduigou Mar 16, 2022
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10 changes: 5 additions & 5 deletions golang/content.md
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Expand Up @@ -15,7 +15,7 @@ Go (a.k.a., Golang) is a programming language first developed at Google. It is a
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 (assuming it uses `go.mod` for dependency management):

```dockerfile
FROM %%IMAGE%%:1.17
FROM %%IMAGE%%:1.18

WORKDIR /usr/src/app

Expand All @@ -41,27 +41,27 @@ $ docker run -it --rm --name my-running-app my-golang-app
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:

```console
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp %%IMAGE%%:1.17 go build -v
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp %%IMAGE%%:1.18 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.

```console
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp %%IMAGE%%:1.17 make
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp %%IMAGE%%:1.18 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`):

```console
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 %%IMAGE%%:1.17 go build -v
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 %%IMAGE%%:1.18 go build -v
```

Alternatively, you can build for multiple platforms at once:

```console
$ docker run --rm -it -v "$PWD":/usr/src/myapp -w /usr/src/myapp %%IMAGE%%:1.17 bash
$ docker run --rm -it -v "$PWD":/usr/src/myapp -w /usr/src/myapp %%IMAGE%%:1.18 bash
$ for GOOS in darwin linux; do
> for GOARCH in 386 amd64; do
> export GOOS GOARCH
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