| package client // import "github.com/docker/docker/client" |
| |
| import ( |
| "bytes" |
| "context" |
| "encoding/json" |
| "fmt" |
| "io/ioutil" |
| "net/http" |
| "strings" |
| "testing" |
| |
| "github.com/docker/docker/api/types" |
| registrytypes "github.com/docker/docker/api/types/registry" |
| "github.com/docker/docker/api/types/swarm" |
| "github.com/opencontainers/go-digest" |
| "github.com/opencontainers/image-spec/specs-go/v1" |
| "gotest.tools/assert" |
| is "gotest.tools/assert/cmp" |
| ) |
| |
| func TestServiceCreateError(t *testing.T) { |
| client := &Client{ |
| client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), |
| } |
| _, err := client.ServiceCreate(context.Background(), swarm.ServiceSpec{}, types.ServiceCreateOptions{}) |
| if err == nil || err.Error() != "Error response from daemon: Server error" { |
| t.Fatalf("expected a Server Error, got %v", err) |
| } |
| } |
| |
| func TestServiceCreate(t *testing.T) { |
| expectedURL := "/services/create" |
| client := &Client{ |
| client: newMockClient(func(req *http.Request) (*http.Response, error) { |
| if !strings.HasPrefix(req.URL.Path, expectedURL) { |
| return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL) |
| } |
| if req.Method != "POST" { |
| return nil, fmt.Errorf("expected POST method, got %s", req.Method) |
| } |
| b, err := json.Marshal(types.ServiceCreateResponse{ |
| ID: "service_id", |
| }) |
| if err != nil { |
| return nil, err |
| } |
| return &http.Response{ |
| StatusCode: http.StatusOK, |
| Body: ioutil.NopCloser(bytes.NewReader(b)), |
| }, nil |
| }), |
| } |
| |
| r, err := client.ServiceCreate(context.Background(), swarm.ServiceSpec{}, types.ServiceCreateOptions{}) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if r.ID != "service_id" { |
| t.Fatalf("expected `service_id`, got %s", r.ID) |
| } |
| } |
| |
| func TestServiceCreateCompatiblePlatforms(t *testing.T) { |
| client := &Client{ |
| version: "1.30", |
| client: newMockClient(func(req *http.Request) (*http.Response, error) { |
| if strings.HasPrefix(req.URL.Path, "/v1.30/services/create") { |
| var serviceSpec swarm.ServiceSpec |
| |
| // check if the /distribution endpoint returned correct output |
| err := json.NewDecoder(req.Body).Decode(&serviceSpec) |
| if err != nil { |
| return nil, err |
| } |
| |
| assert.Check(t, is.Equal("foobar:1.0@sha256:c0537ff6a5218ef531ece93d4984efc99bbf3f7497c0a7726c88e2bb7584dc96", serviceSpec.TaskTemplate.ContainerSpec.Image)) |
| assert.Check(t, is.Len(serviceSpec.TaskTemplate.Placement.Platforms, 1)) |
| |
| p := serviceSpec.TaskTemplate.Placement.Platforms[0] |
| b, err := json.Marshal(types.ServiceCreateResponse{ |
| ID: "service_" + p.OS + "_" + p.Architecture, |
| }) |
| if err != nil { |
| return nil, err |
| } |
| return &http.Response{ |
| StatusCode: http.StatusOK, |
| Body: ioutil.NopCloser(bytes.NewReader(b)), |
| }, nil |
| } else if strings.HasPrefix(req.URL.Path, "/v1.30/distribution/") { |
| b, err := json.Marshal(registrytypes.DistributionInspect{ |
| Descriptor: v1.Descriptor{ |
| Digest: "sha256:c0537ff6a5218ef531ece93d4984efc99bbf3f7497c0a7726c88e2bb7584dc96", |
| }, |
| Platforms: []v1.Platform{ |
| { |
| Architecture: "amd64", |
| OS: "linux", |
| }, |
| }, |
| }) |
| if err != nil { |
| return nil, err |
| } |
| return &http.Response{ |
| StatusCode: http.StatusOK, |
| Body: ioutil.NopCloser(bytes.NewReader(b)), |
| }, nil |
| } else { |
| return nil, fmt.Errorf("unexpected URL '%s'", req.URL.Path) |
| } |
| }), |
| } |
| |
| spec := swarm.ServiceSpec{TaskTemplate: swarm.TaskSpec{ContainerSpec: &swarm.ContainerSpec{Image: "foobar:1.0"}}} |
| |
| r, err := client.ServiceCreate(context.Background(), spec, types.ServiceCreateOptions{QueryRegistry: true}) |
| assert.Check(t, err) |
| assert.Check(t, is.Equal("service_linux_amd64", r.ID)) |
| } |
| |
| func TestServiceCreateDigestPinning(t *testing.T) { |
| dgst := "sha256:c0537ff6a5218ef531ece93d4984efc99bbf3f7497c0a7726c88e2bb7584dc96" |
| dgstAlt := "sha256:37ffbf3f7497c07584dc9637ffbf3f7497c0758c0537ffbf3f7497c0c88e2bb7" |
| serviceCreateImage := "" |
| pinByDigestTests := []struct { |
| img string // input image provided by the user |
| expected string // expected image after digest pinning |
| }{ |
| // default registry returns familiar string |
| {"docker.io/library/alpine", "alpine:latest@" + dgst}, |
| // provided tag is preserved and digest added |
| {"alpine:edge", "alpine:edge@" + dgst}, |
| // image with provided alternative digest remains unchanged |
| {"alpine@" + dgstAlt, "alpine@" + dgstAlt}, |
| // image with provided tag and alternative digest remains unchanged |
| {"alpine:edge@" + dgstAlt, "alpine:edge@" + dgstAlt}, |
| // image on alternative registry does not result in familiar string |
| {"alternate.registry/library/alpine", "alternate.registry/library/alpine:latest@" + dgst}, |
| // unresolvable image does not get a digest |
| {"cannotresolve", "cannotresolve:latest"}, |
| } |
| |
| client := &Client{ |
| version: "1.30", |
| client: newMockClient(func(req *http.Request) (*http.Response, error) { |
| if strings.HasPrefix(req.URL.Path, "/v1.30/services/create") { |
| // reset and set image received by the service create endpoint |
| serviceCreateImage = "" |
| var service swarm.ServiceSpec |
| if err := json.NewDecoder(req.Body).Decode(&service); err != nil { |
| return nil, fmt.Errorf("could not parse service create request") |
| } |
| serviceCreateImage = service.TaskTemplate.ContainerSpec.Image |
| |
| b, err := json.Marshal(types.ServiceCreateResponse{ |
| ID: "service_id", |
| }) |
| if err != nil { |
| return nil, err |
| } |
| return &http.Response{ |
| StatusCode: http.StatusOK, |
| Body: ioutil.NopCloser(bytes.NewReader(b)), |
| }, nil |
| } else if strings.HasPrefix(req.URL.Path, "/v1.30/distribution/cannotresolve") { |
| // unresolvable image |
| return nil, fmt.Errorf("cannot resolve image") |
| } else if strings.HasPrefix(req.URL.Path, "/v1.30/distribution/") { |
| // resolvable images |
| b, err := json.Marshal(registrytypes.DistributionInspect{ |
| Descriptor: v1.Descriptor{ |
| Digest: digest.Digest(dgst), |
| }, |
| }) |
| if err != nil { |
| return nil, err |
| } |
| return &http.Response{ |
| StatusCode: http.StatusOK, |
| Body: ioutil.NopCloser(bytes.NewReader(b)), |
| }, nil |
| } |
| return nil, fmt.Errorf("unexpected URL '%s'", req.URL.Path) |
| }), |
| } |
| |
| // run pin by digest tests |
| for _, p := range pinByDigestTests { |
| r, err := client.ServiceCreate(context.Background(), swarm.ServiceSpec{ |
| TaskTemplate: swarm.TaskSpec{ |
| ContainerSpec: &swarm.ContainerSpec{ |
| Image: p.img, |
| }, |
| }, |
| }, types.ServiceCreateOptions{QueryRegistry: true}) |
| |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| if r.ID != "service_id" { |
| t.Fatalf("expected `service_id`, got %s", r.ID) |
| } |
| |
| if p.expected != serviceCreateImage { |
| t.Fatalf("expected image %s, got %s", p.expected, serviceCreateImage) |
| } |
| } |
| } |