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Add option to run custom architecture (container platform) (#525)

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* Add QEMU to run different architectures

* Update dependencies in `go.mod`

* Add `--container-architecture` flag to specify custom image architecture

Co-authored-by: Casey Lee <cplee@nektos.com>
This commit is contained in:
hackercat
2021-03-29 06:08:40 +02:00
committed by GitHub
parent 41b03b581c
commit 6c258cf40d
16 changed files with 1254 additions and 164 deletions
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35
pkg/container/docker_images_test.go
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@@ -23,9 +23,15 @@ func TestImageExistsLocally(t *testing.T) {
// to help make this test reliable and not flaky, we need to have
// an image that will exist, and onew that won't exist
exists, err := ImageExistsLocally(ctx, "library/alpine:this-random-tag-will-never-exist")
// Test if image exists with specific tag
invalidImageTag, err := ImageExistsLocally(ctx, "library/alpine:this-random-tag-will-never-exist", "linux/amd64")
assert.Nil(t, err)
assert.Equal(t, false, exists)
assert.Equal(t, false, invalidImageTag)
// Test if image exists with specific architecture (image platform)
invalidImagePlatform, err := ImageExistsLocally(ctx, "alpine:latest", "windows/amd64")
assert.Nil(t, err)
assert.Equal(t, false, invalidImagePlatform)
// pull an image
cli, err := client.NewClientWithOpts(client.FromEnv)
@@ -34,13 +40,28 @@ func TestImageExistsLocally(t *testing.T) {
// Chose alpine latest because it's so small
// maybe we should build an image instead so that tests aren't reliable on dockerhub
reader, err := cli.ImagePull(ctx, "alpine:latest", types.ImagePullOptions{})
readerDefault, err := cli.ImagePull(ctx, "alpine:latest", types.ImagePullOptions{
Platform: "linux/amd64",
})
assert.Nil(t, err)
defer reader.Close()
_, err = ioutil.ReadAll(reader)
defer readerDefault.Close()
_, err = ioutil.ReadAll(readerDefault)
assert.Nil(t, err)
exists, err = ImageExistsLocally(ctx, "alpine:latest")
imageDefaultArchExists, err := ImageExistsLocally(ctx, "alpine:latest", "linux/amd64")
assert.Nil(t, err)
assert.Equal(t, true, exists)
assert.Equal(t, true, imageDefaultArchExists)
// Validate if another architecture platform can be pulled
readerArm64, err := cli.ImagePull(ctx, "alpine:latest", types.ImagePullOptions{
Platform: "linux/arm64",
})
assert.Nil(t, err)
defer readerArm64.Close()
_, err = ioutil.ReadAll(readerArm64)
assert.Nil(t, err)
imageArm64Exists, err := ImageExistsLocally(ctx, "alpine:latest", "linux/arm64")
assert.Nil(t, err)
assert.Equal(t, true, imageArm64Exists)
}