|
| 1 | +package workers |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "os" |
| 6 | + "os/exec" |
| 7 | + "sync" |
| 8 | + |
| 9 | + "github.com/docker/buildx/tests/helpers" |
| 10 | + "github.com/moby/buildkit/identity" |
| 11 | + "github.com/moby/buildkit/util/testutil/integration" |
| 12 | + "github.com/pkg/errors" |
| 13 | +) |
| 14 | + |
| 15 | +func InitKubernetesWorker() { |
| 16 | + integration.Register(&kubernetesWorker{ |
| 17 | + id: "kubernetes", |
| 18 | + }) |
| 19 | +} |
| 20 | + |
| 21 | +type kubernetesWorker struct { |
| 22 | + id string |
| 23 | + |
| 24 | + unsupported []string |
| 25 | + |
| 26 | + docker integration.Backend |
| 27 | + dockerClose func() error |
| 28 | + dockerErr error |
| 29 | + dockerOnce sync.Once |
| 30 | + |
| 31 | + k3dConfig string |
| 32 | + k3dClose func() error |
| 33 | + k3dErr error |
| 34 | + k3dOnce sync.Once |
| 35 | +} |
| 36 | + |
| 37 | +func (w *kubernetesWorker) Name() string { |
| 38 | + return w.id |
| 39 | +} |
| 40 | + |
| 41 | +func (w *kubernetesWorker) Rootless() bool { |
| 42 | + return false |
| 43 | +} |
| 44 | + |
| 45 | +func (w *kubernetesWorker) NetNSDetached() bool { |
| 46 | + return false |
| 47 | +} |
| 48 | + |
| 49 | +func (w *kubernetesWorker) New(ctx context.Context, cfg *integration.BackendConfig) (integration.Backend, func() error, error) { |
| 50 | + w.dockerOnce.Do(func() { |
| 51 | + w.docker, w.dockerClose, w.dockerErr = dockerWorker{id: w.id}.New(ctx, cfg) |
| 52 | + }) |
| 53 | + if w.dockerErr != nil { |
| 54 | + return w.docker, w.dockerClose, w.dockerErr |
| 55 | + } |
| 56 | + |
| 57 | + w.k3dOnce.Do(func() { |
| 58 | + w.k3dConfig, w.k3dClose, w.k3dErr = helpers.NewK3dServer(ctx, cfg, w.docker.DockerAddress()) |
| 59 | + }) |
| 60 | + if w.k3dErr != nil { |
| 61 | + return nil, w.k3dClose, w.k3dErr |
| 62 | + } |
| 63 | + |
| 64 | + name := "integration-kubernetes-" + identity.NewID() |
| 65 | + // The generic integration harness injects a host-local registry mirror config. |
| 66 | + // That works for host-networked workers, but not for a BuildKit pod where |
| 67 | + // localhost points at the pod itself instead of the runner. |
| 68 | + cmd := exec.CommandContext(ctx, "buildx", "create", "--bootstrap", "--name="+name, "--driver=kubernetes") |
| 69 | + cmd.Env = append( |
| 70 | + os.Environ(), |
| 71 | + "BUILDX_CONFIG=/tmp/buildx-"+name, |
| 72 | + "DOCKER_CONTEXT="+w.docker.DockerAddress(), |
| 73 | + "KUBECONFIG="+w.k3dConfig, |
| 74 | + ) |
| 75 | + if err := cmd.Run(); err != nil { |
| 76 | + return nil, nil, errors.Wrapf(err, "failed to create buildx instance %s", name) |
| 77 | + } |
| 78 | + |
| 79 | + cl := func() error { |
| 80 | + cmd := exec.CommandContext(context.Background(), "buildx", "rm", "-f", name) |
| 81 | + cmd.Env = append( |
| 82 | + os.Environ(), |
| 83 | + "BUILDX_CONFIG=/tmp/buildx-"+name, |
| 84 | + "DOCKER_CONTEXT="+w.docker.DockerAddress(), |
| 85 | + "KUBECONFIG="+w.k3dConfig, |
| 86 | + ) |
| 87 | + return cmd.Run() |
| 88 | + } |
| 89 | + |
| 90 | + return &backend{ |
| 91 | + context: w.docker.DockerAddress(), |
| 92 | + builder: name, |
| 93 | + unsupportedFeatures: w.unsupported, |
| 94 | + }, cl, nil |
| 95 | +} |
| 96 | + |
| 97 | +func (w *kubernetesWorker) Close() error { |
| 98 | + setErr := func(dst *error, err error) { |
| 99 | + if err != nil && *dst == nil { |
| 100 | + *dst = err |
| 101 | + } |
| 102 | + } |
| 103 | + |
| 104 | + var err error |
| 105 | + if c := w.k3dClose; c != nil { |
| 106 | + setErr(&err, c()) |
| 107 | + } |
| 108 | + if c := w.dockerClose; c != nil { |
| 109 | + setErr(&err, c()) |
| 110 | + } |
| 111 | + |
| 112 | + // reset the worker to be ready to go again |
| 113 | + w.docker = nil |
| 114 | + w.dockerClose = nil |
| 115 | + w.dockerErr = nil |
| 116 | + w.dockerOnce = sync.Once{} |
| 117 | + w.k3dConfig = "" |
| 118 | + w.k3dClose = nil |
| 119 | + w.k3dErr = nil |
| 120 | + w.k3dOnce = sync.Once{} |
| 121 | + |
| 122 | + return err |
| 123 | +} |
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