Merge pull request #1275 from samalba/engine-push
Support for engine.#Push
This commit is contained in:
commit
074dfcbdf2
87
plan/task/push.go
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87
plan/task/push.go
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@ -0,0 +1,87 @@
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package task
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import (
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"context"
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"fmt"
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"github.com/docker/distribution/reference"
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bk "github.com/moby/buildkit/client"
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"github.com/moby/buildkit/frontend/dockerfile/dockerfile2llb"
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"github.com/rs/zerolog/log"
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"go.dagger.io/dagger/compiler"
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"go.dagger.io/dagger/plancontext"
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"go.dagger.io/dagger/solver"
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)
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func init() {
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Register("Push", func() Task { return &pushTask{} })
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}
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type pushTask struct {
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}
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func (c *pushTask) Run(ctx context.Context, pctx *plancontext.Context, s solver.Solver, v *compiler.Value) (*compiler.Value, error) {
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lg := log.Ctx(ctx)
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rawDest, err := v.Lookup("dest").String()
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if err != nil {
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return nil, err
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}
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dest, err := reference.ParseNormalizedNamed(rawDest)
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if err != nil {
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return nil, fmt.Errorf("failed to parse ref %s: %w", rawDest, err)
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}
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// Add the default tag "latest" to a reference if it only has a repo name.
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dest = reference.TagNameOnly(dest)
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// Read auth info
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auth, err := decodeAuthValue(pctx, v.Lookup("auth"))
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if err != nil {
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return nil, err
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}
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for _, a := range auth {
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s.AddCredentials(a.Target, a.Username, a.Secret.PlainText())
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lg.Debug().Str("target", a.Target).Msg("add target credentials")
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}
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// Get input state
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input, err := pctx.FS.FromValue(v.Lookup("input"))
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if err != nil {
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return nil, err
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}
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st, err := input.Result().ToState()
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if err != nil {
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return nil, err
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}
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// Decode the image config
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imageConfig := dockerfile2llb.ImageConfig{}
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if err := v.Lookup("config").Decode(&imageConfig); err != nil {
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return nil, err
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}
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// Export image
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lg.Debug().Str("dest", dest.String()).Msg("export image")
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resp, err := s.Export(ctx, st, &dockerfile2llb.Image{Config: imageConfig}, bk.ExportEntry{
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Type: bk.ExporterImage,
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Attrs: map[string]string{
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"name": dest.String(),
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"push": "true",
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},
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}, pctx.Platform.Get())
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if err != nil {
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return nil, err
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}
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digest, hasImageDigest := resp.ExporterResponse["containerimage.digest"]
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if !hasImageDigest {
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return nil, fmt.Errorf("image push target %q did not return an image digest", dest.String())
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}
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imageRef := fmt.Sprintf("%s@%s", resp.ExporterResponse["image.name"], digest)
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// Fill result
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return compiler.NewValue().FillFields(map[string]interface{}{
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"result": imageRef,
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})
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}
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@ -2,7 +2,6 @@ package engine
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// Upload a container image to a remote repository
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#Push: {
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@dagger(notimplemented)
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$dagger: task: _name: "Push"
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// Target repository address
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@ -14,6 +14,11 @@ setup() {
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"$DAGGER" --europa up ./pull_auth.cue
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}
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@test "task: #Push" {
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cd "$TESTDIR"/tasks/push
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"$DAGGER" --europa up ./push.cue
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}
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@test "task: #ReadFile" {
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cd "$TESTDIR"/tasks/readfile
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"$DAGGER" --europa up
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67
tests/tasks/push/push.cue
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67
tests/tasks/push/push.cue
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package main
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import (
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"strings"
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"alpha.dagger.io/europa/dagger/engine"
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)
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engine.#Plan & {
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inputs: secrets: dockerHubToken: envvar: "DOCKERHUB_TOKEN"
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#auth: [{
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target: "daggerio/ci-test:private-pull"
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username: "daggertest"
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secret: inputs.secrets.dockerHubToken.contents
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}]
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actions: {
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randomString: {
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baseImage: engine.#Pull & {
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source: "alpine:3.15.0@sha256:e7d88de73db3d3fd9b2d63aa7f447a10fd0220b7cbf39803c803f2af9ba256b3"
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}
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image: engine.#Exec & {
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input: baseImage.output
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args: [
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"sh", "-c", "echo -n $RANDOM > /output.txt",
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]
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}
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outputFile: engine.#ReadFile & {
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input: image.output
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path: "/output.txt"
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}
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output: outputFile.contents
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}
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// Push image with random content
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push: engine.#Push & {
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dest: "daggerio/ci-test:\(randomString.output)"
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input: randomString.image.output
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config: Env: ["FOO=\(randomString.output)"]
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auth: #auth
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}
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// Pull same image and check the content
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pull: engine.#Pull & {
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source: "daggerio/ci-test:\(randomString.output)"
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auth: #auth
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} & {
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// check digest
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digest: strings.Split(push.result, "@")[1]
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// check image config
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config: {
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Env: ["FOO=\(randomString.output)"]
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}
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}
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pullOutputFile: engine.#ReadFile & {
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input: pull.output
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path: "/output.txt"
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}
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// Check output file in the pulled image
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pullContent: string & pullOutputFile.contents & randomString.contents
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}
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}
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