Isolated content of pkg/kustomize

pkg/resource/secret.go

@@ -0,0 +1,83 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package resource
+
+import (
+	"context"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"time"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/kubectl/pkg/kustomize/types"
+)
+
+func newFromSecretGenerator(p string, s types.SecretArgs) (*Resource, error) {
+	corev1secret := &corev1.Secret{}
+	corev1secret.APIVersion = "v1"
+	corev1secret.Kind = "Secret"
+	corev1secret.Name = s.Name
+	corev1secret.Type = corev1.SecretType(s.Type)
+	if corev1secret.Type == "" {
+		corev1secret.Type = corev1.SecretTypeOpaque
+	}
+	corev1secret.Data = map[string][]byte{}
+
+	for k, v := range s.Commands {
+		out, err := createSecretKey(p, v)
+		if err != nil {
+			return nil, err
+		}
+		corev1secret.Data[k] = out
+	}
+
+	obj, err := objectToUnstructured(corev1secret)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &Resource{Data: obj, Behavior: s.Behavior}, nil
+}
+
+func createSecretKey(wd string, command string) ([]byte, error) {
+	fi, err := os.Stat(wd)
+	if err != nil || !fi.IsDir() {
+		wd = filepath.Dir(wd)
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	cmd := exec.CommandContext(ctx, "sh", "-c", command)
+	cmd.Dir = wd
+
+	return cmd.Output()
+}
+
+// NewFromSecretGenerators takes a SecretGenerator slice and executes its command in directory p
+// then writes the output to a Resource slice and return it.
+func NewFromSecretGenerators(p string, secretList []types.SecretArgs) (ResourceCollection, error) {
+	allResources := []*Resource{}
+	for _, secret := range secretList {
+		res, err := newFromSecretGenerator(p, secret)
+		if err != nil {
+			return nil, err
+		}
+		allResources = append(allResources, res)
+	}
+	return resourceCollectionFromResources(allResources)
+}