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Docker Library Bot 2021-04-28 00:11:06 +00:00
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10
golang/README.md
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@ -100,7 +100,7 @@ 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:
```dockerfile
FROM golang:1.14
FROM golang:1.16
WORKDIR /go/src/app
COPY . .
@ -123,13 +123,13 @@ $ 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 golang:1.14 go build -v
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.16 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 golang:1.14 make
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.16 make
```
## Cross-compile your app inside the Docker container
@ -137,13 +137,13 @@ $ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.14 make
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 golang:1.14 go build -v
$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp -e GOOS=windows -e GOARCH=386 golang:1.16 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 golang:1.14 bash
$ docker run --rm -it -v "$PWD":/usr/src/myapp -w /usr/src/myapp golang:1.16 bash
$ for GOOS in darwin linux; do
> for GOARCH in 386 amd64; do
> export GOOS GOARCH