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Add support for running builds within an QEMU emulation

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With this change we can run a Docker build in QEMU and build ARM or ARM64 binaries directly on an Intel build machine. This feature already supports building with Docker4Mac (Beta31). So it's easy for a developer to compile and test the Docker binaries locally on his dev machine w/o the need of the target hardware. Another use case would be to run builds on a clound CI like Travis to get an instant feedback loop for PR's, all on a common Intel platform w/o the need to set up the CI system on the target hardware.

Usage: build static Docker binaries for ARM 32-bit
```
DOCKER_ENGINE_OSARCH="linux/arm" make binary
```

Usage: build static Docker binaries for ARM64 aka AARCH64
```
DOCKER_ENGINE_OSARCH="linux/arm64" make binary
```

Signed-off-by: Dieter Reuter <dieter.reuter@me.com>
Upstream-commit: 0d7e118f0199102924c318c80b7e7a10720e1874
Component: engine
This commit is contained in:
Dieter Reuter
2016-12-03 13:53:59 +01:00
parent c0aa09b760
commit beb7c759eb
1 changed files with 1 additions and 1 deletions
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components/engine/hack/make/.detect-daemon-osarch
+1 -1
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@@ -19,7 +19,7 @@ docker-version-osarch() {
}
# Retrieve OS/ARCH of docker daemon, e.g. linux/amd64
export DOCKER_ENGINE_OSARCH="$(docker-version-osarch 'Server')"
export DOCKER_ENGINE_OSARCH="${DOCKER_ENGINE_OSARCH:=$(docker-version-osarch 'Server')}"
export DOCKER_ENGINE_GOOS="${DOCKER_ENGINE_OSARCH%/*}"
export DOCKER_ENGINE_GOARCH="${DOCKER_ENGINE_OSARCH##*/}"
DOCKER_ENGINE_GOARCH=${DOCKER_ENGINE_GOARCH:=amd64}