diff --git a/_proto/hapi/chart/metadata.proto b/_proto/hapi/chart/metadata.proto index 37d3ac348..49d6a217a 100644 --- a/_proto/hapi/chart/metadata.proto +++ b/_proto/hapi/chart/metadata.proto @@ -87,4 +87,7 @@ message Metadata { // Annotations are additional mappings uninterpreted by Tiller, // made available for inspection by other applications. map annotations = 16; + + // KubeVersion is a SemVer constraint specifying the version of Kubernetes required. + string kubeVersion = 17; } diff --git a/pkg/proto/hapi/chart/metadata.pb.go b/pkg/proto/hapi/chart/metadata.pb.go index c9034ffdc..49a4aa0ac 100644 --- a/pkg/proto/hapi/chart/metadata.pb.go +++ b/pkg/proto/hapi/chart/metadata.pb.go @@ -107,6 +107,8 @@ type Metadata struct { // Annotations are additional mappings uninterpreted by Tiller, // made available for inspection by other applications. Annotations map[string]string `protobuf:"bytes,16,rep,name=annotations" json:"annotations,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"` + // KubeVersion is a SemVer constraints on what version of Kubernetes is required. + KubeVersion string `protobuf:"bytes,17,opt,name=kubeVersion" json:"kubeVersion,omitempty"` } func (m *Metadata) Reset() { *m = Metadata{} } @@ -226,6 +228,13 @@ func (m *Metadata) GetAnnotations() map[string]string { return nil } +func (m *Metadata) GetKubeVersion() string { + if m != nil { + return m.KubeVersion + } + return "" +} + func init() { proto.RegisterType((*Maintainer)(nil), "hapi.chart.Maintainer") proto.RegisterType((*Metadata)(nil), "hapi.chart.Metadata") @@ -235,32 +244,32 @@ func init() { func init() { proto.RegisterFile("hapi/chart/metadata.proto", fileDescriptor2) } var fileDescriptor2 = []byte{ - // 420 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x52, 0x5b, 0x6b, 0xd4, 0x40, - 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Got %q", err) + } +} + +func TestInstallRelease_WrongKubeVersion(t *testing.T) { + c := helm.NewContext() + rs := rsFixture() + + // TODO: Refactor this into a mock. + req := &services.InstallReleaseRequest{ + Chart: &chart.Chart{ + Metadata: &chart.Metadata{Name: "hello", KubeVersion: ">=5.0.0"}, + Templates: []*chart.Template{ + {Name: "templates/hello", Data: []byte("hello: world")}, + {Name: "templates/hooks", Data: []byte(manifestWithHook)}, + }, + }, + } + _, err := rs.InstallRelease(c, req) + if err == nil { + t.Fatalf("Expected to fail because of wrong version") + } + + expect := "Chart requires kubernetesVersion" + if !strings.Contains(err.Error(), expect) { + t.Errorf("Expected %q to contain %q", err.Error(), expect) + } +} diff --git a/pkg/tiller/release_server.go b/pkg/tiller/release_server.go index 3bc834f9d..31a043030 100644 --- a/pkg/tiller/release_server.go +++ b/pkg/tiller/release_server.go @@ -252,6 +252,15 @@ func (s *ReleaseServer) renderResources(ch *chart.Chart, values chartutil.Values return nil, nil, "", fmt.Errorf("Chart incompatible with Tiller %s", sver) } + if ch.Metadata.KubeVersion != "" { + cap, _ := values["Capabilities"].(*chartutil.Capabilities) + gitVersion := cap.KubeVersion.String() + k8sVersion := strings.Split(gitVersion, "+")[0] + if !version.IsCompatibleRange(ch.Metadata.KubeVersion, k8sVersion) { + return nil, nil, "", fmt.Errorf("Chart requires kubernetesVersion: %s which is incompatible with Kubernetes %s", ch.Metadata.KubeVersion, k8sVersion) + } + } + s.Log("rendering %s chart using values", ch.GetMetadata().Name) renderer := s.engine(ch) files, err := renderer.Render(ch, values)