wip: registry+v1 to helm chart

- handling for all install mode combinations is working
- subscription.spec.config support

Author: joelanford

Makefile

@@ -103,9 +103,11 @@ tidy: #HELP Update dependencies.
 manifests: $(CONTROLLER_GEN) #EXHELP Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
 	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/base/crd/bases output:rbac:artifacts:config=config/base/rbac
 
+OPENAPI_VERSION := $(shell go list -m k8s.io/api | cut -d" " -f2 | sed 's/^v0/v1/')
 .PHONY: generate
 generate: $(CONTROLLER_GEN) #EXHELP Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
 	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
+	curl -sSL https://raw.githubusercontent.com/kubernetes/kubernetes/refs/tags/$(OPENAPI_VERSION)/api/openapi-spec/v3/apis__apps__v1_openapi.json > ./internal/rukpak/convert/v2/internal/apis__apps__v1_openapi.json
 
 .PHONY: verify
 verify: tidy fmt vet generate manifests crd-ref-docs #HELP Verify all generated code is up-to-date.

cmd/registryv1-to-helm/main.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/spf13/cobra"
+	"helm.sh/helm/v3/pkg/chartutil"
+
+	v2 "github.com/operator-framework/operator-controller/internal/rukpak/convert/v2"
+)
+
+func main() {
+	if err := rootCmd().Execute(); err != nil {
+		os.Exit(1)
+	}
+}
+
+func rootCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:  "registryv1-to-helm <registry+v1-directory-path> [output-path]",
+		Args: cobra.RangeArgs(1, 2),
+		Run: func(cmd *cobra.Command, args []string) {
+			registryv1Path := args[0]
+
+			saveDir := "."
+			if len(args) == 2 {
+				saveDir = args[1]
+			}
+
+			chrt, err := v2.RegistryV1ToHelmChart(cmd.Context(), os.DirFS(registryv1Path))
+			if err != nil {
+				cmd.PrintErr(err)
+				os.Exit(1)
+			}
+
+			if err := chartutil.SaveDir(chrt, saveDir); err != nil {
+				cmd.PrintErr(err)
+				os.Exit(1)
+			}
+
+			origChartDir := filepath.Join(saveDir, chrt.Metadata.Name)
+			desiredChartDir := filepath.Join(saveDir, fmt.Sprintf("%s-%s", chrt.Metadata.Name, chrt.Metadata.Version))
+			if err := os.Rename(origChartDir, desiredChartDir); err != nil {
+				cmd.PrintErr(err)
+				os.Exit(1)
+			}
+			cmd.Printf("Chart saved to %s\n", desiredChartDir)
+		},
+	}
+	return cmd
+}

cmd/registryv1-to-helm/values.yaml

@@ -0,0 +1,39 @@
+affinity:
+  nodeAffinity:
+    requiredDuringSchedulingIgnoredDuringExecution:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+nodeSelector:
+  overrideKey1: overrideValue1
+
+selector:
+  overrideKey2: overrideValue2
+
+tolerations:
+ - effect: NoSchedule
+   key: node-role.kubernetes.io/master2
+
+volumes:
+    - name: argocd-operator-token-5z5z2
+      emptyDir: {}
+
+env:
+  - name: WATCH_NAMESPACE
+    value: BAR
+
+envFrom:
+  - configMapRef:
+      name: my-configmap
+  - secretRef:
+      name: my-secret
+
+resources:
+  requests:
+    cpu: 100m
+    memory: 100Mi
+
+volumeMounts:
+  - name: tmp
+    mountPath: override

go.mod

@@ -11,15 +11,18 @@ require (
 	github.com/containers/image/v5 v5.32.2
 	github.com/fsnotify/fsnotify v1.8.0
 	github.com/go-logr/logr v1.4.2
+	github.com/go-openapi/spec v0.21.0
 	github.com/google/go-cmp v0.6.0
 	github.com/google/go-containerregistry v0.20.2
+	github.com/joeycumines/go-dotnotation v0.0.0-20180131115956-2d3612e36c5d
 	github.com/onsi/ginkgo/v2 v2.21.0
 	github.com/onsi/gomega v1.35.1
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/operator-framework/api v0.27.0
 	github.com/operator-framework/catalogd v0.36.0
 	github.com/operator-framework/helm-operator-plugins v0.7.0
 	github.com/operator-framework/operator-registry v1.48.0
+	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.9.0
 	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56
@@ -103,7 +106,6 @@ require (
 	github.com/go-openapi/jsonreference v0.21.0 // indirect
 	github.com/go-openapi/loads v0.22.0 // indirect
 	github.com/go-openapi/runtime v0.28.0 // indirect
-	github.com/go-openapi/spec v0.21.0 // indirect
 	github.com/go-openapi/strfmt v0.23.0 // indirect
 	github.com/go-openapi/swag v0.23.0 // indirect
 	github.com/go-openapi/validate v0.24.0 // indirect
@@ -193,7 +195,6 @@ require (
 	github.com/sigstore/sigstore v1.8.4 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/spf13/cast v1.7.0 // indirect
-	github.com/spf13/cobra v1.8.1 // indirect
 	github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6 // indirect
 	github.com/stoewer/go-strcase v1.3.0 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect

go.sum

@@ -392,6 +392,8 @@ github.com/jmoiron/sqlx v1.4.0 h1:1PLqN7S1UYp5t4SrVVnt4nUVNemrDAtxlulVe+Qgm3o=
 github.com/jmoiron/sqlx v1.4.0/go.mod h1:ZrZ7UsYB/weZdl2Bxg6jCRO9c3YHl8r3ahlKmRT4JLY=
 github.com/joelanford/ignore v0.1.0 h1:VawbTDeg5EL+PN7W8gxVzGerfGpVo3gFdR5ZAqnkYRk=
 github.com/joelanford/ignore v0.1.0/go.mod h1:Vb0PQMAQXK29fmiPjDukpO8I2NTcp1y8LbhFijD1/0o=
+github.com/joeycumines/go-dotnotation v0.0.0-20180131115956-2d3612e36c5d h1:ljoJyU5NEhe3LWXrRSHnYqWtQehQSJ+9d9tfIGNbpSw=
+github.com/joeycumines/go-dotnotation v0.0.0-20180131115956-2d3612e36c5d/go.mod h1:siHz7M0dAufA9aNRidkfckDSVB/S+Ld7allyOe5uxVg=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=

internal/rukpak/convert/registryv1.go

@@ -39,7 +39,7 @@ type Plain struct {
 	Objects []client.Object
 }
 
-func RegistryV1ToHelmChart(ctx context.Context, rv1 fs.FS, installNamespace string, watchNamespaces []string) (*chart.Chart, error) {
+func LoadRegistryV1(ctx context.Context, rv1 fs.FS) (*RegistryV1, error) {
 	l := log.FromContext(ctx)
 
 	reg := RegistryV1{}
@@ -100,8 +100,16 @@ func RegistryV1ToHelmChart(ctx context.Context, rv1 fs.FS, installNamespace stri
 	}); err != nil {
 		return nil, err
 	}
+	return &reg, nil
+}
+
+func RegistryV1ToHelmChart(ctx context.Context, rv1 fs.FS, installNamespace string, watchNamespaces []string) (*chart.Chart, error) {
+	reg, err := LoadRegistryV1(ctx, rv1)
+	if err != nil {
+		return nil, err
+	}
 
-	return toChart(reg, installNamespace, watchNamespaces)
+	return toChart(*reg, installNamespace, watchNamespaces)
 }
 
 func toChart(in RegistryV1, installNamespace string, watchNamespaces []string) (*chart.Chart, error) {