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78 lines
2 KiB
Go
78 lines
2 KiB
Go
package environment
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import (
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"context"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/integration-cli/fixtures/load"
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"github.com/stretchr/testify/require"
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)
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type protectedElements struct {
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images map[string]struct{}
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}
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// ProtectImage adds the specified image(s) to be protected in case of clean
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func (e *Execution) ProtectImage(t testingT, images ...string) {
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for _, image := range images {
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e.protectedElements.images[image] = struct{}{}
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}
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}
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func newProtectedElements() protectedElements {
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return protectedElements{
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images: map[string]struct{}{},
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}
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}
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// ProtectImages protects existing images and on linux frozen images from being
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// cleaned up at the end of test runs
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func ProtectImages(t testingT, testEnv *Execution) {
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images := getExistingImages(t, testEnv)
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if testEnv.DaemonInfo.OSType == "linux" {
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images = append(images, ensureFrozenImagesLinux(t, testEnv)...)
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}
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testEnv.ProtectImage(t, images...)
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}
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func getExistingImages(t require.TestingT, testEnv *Execution) []string {
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client := testEnv.APIClient()
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filter := filters.NewArgs()
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filter.Add("dangling", "false")
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imageList, err := client.ImageList(context.Background(), types.ImageListOptions{
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Filters: filter,
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})
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require.NoError(t, err, "failed to list images")
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images := []string{}
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for _, image := range imageList {
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images = append(images, tagsFromImageSummary(image)...)
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}
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return images
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}
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func tagsFromImageSummary(image types.ImageSummary) []string {
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result := []string{}
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for _, tag := range image.RepoTags {
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if tag != "<none>:<none>" {
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result = append(result, tag)
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}
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}
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for _, digest := range image.RepoDigests {
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if digest != "<none>@<none>" {
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result = append(result, digest)
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}
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}
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return result
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}
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func ensureFrozenImagesLinux(t testingT, testEnv *Execution) []string {
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images := []string{"busybox:latest", "hello-world:frozen", "debian:jessie"}
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err := load.FrozenImagesLinux(testEnv.APIClient(), images...)
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if err != nil {
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t.Fatalf("Failed to load frozen images: %s", err)
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}
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return images
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}
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