Add new resource 'kubectl_kustomize_documents'

docs/data-sources/kubectl_kustomize_documents.md

@@ -0,0 +1,22 @@
+# Data Source: kubectl_kustomize_documents
+
+This provider provides a `data` resource `kubectl_kustomize_documents` to
+render a kustomize target to a series of yaml documents. See https://kustomize.io/
+for more info.
+
+## Example Usage
+
+```hcl
+data "kubectl_kustomize_documents" "manifests" {
+    target = "https://github.com/kubernetes-sigs/kustomize/examples/multibases?ref=v1.0.6"
+}
+
+resource "kubectl_manifest" "test" {
+    count     = length(data.kubectl_file_documents.manifests.documents)
+    yaml_body = element(data.kubectl_file_documents.manifests.documents, count.index)
+}
+```
+
+## Attribute Reference
+
+* `documents` - List of YAML documents (string).

go.mod

@@ -24,6 +24,7 @@ require (
 	k8s.io/client-go v0.31.3
 	k8s.io/kube-aggregator v0.31.3
 	k8s.io/kubectl v0.31.3
+	sigs.k8s.io/kustomize/api v0.8.10
 	sigs.k8s.io/yaml v1.4.0
 )
 

go.sum

@@ -206,6 +206,9 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
+github.com/googleapis/gnostic v0.4.1/go.mod h1:LRhVm6pbyptWbWbuZ38d1eyptfvIytN3ir6b65WBswg=
+github.com/googleapis/gnostic v0.5.1 h1:A8Yhf6EtqTv9RMsU6MQTyrtV1TjWlR6xU9BsZIwuTCM=
+github.com/googleapis/gnostic v0.5.1/go.mod h1:6U4PtQXGIEt/Z3h5MAT7FNofLnw9vXk2cUuW7uA/OeU=
 github.com/gophercloud/gophercloud v0.0.0-20190208042652-bc37892e1968/go.mod h1:3WdhXV3rUYy9p6AUW8d94kr+HS62Y4VL9mBnFxsD8q4=
 github.com/gophercloud/utils v0.0.0-20190128072930-fbb6ab446f01/go.mod h1:wjDF8z83zTeg5eMLml5EBSlAhbF7G8DobyI1YsMuyzw=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
@@ -472,6 +475,9 @@ github.com/spf13/pflag v1.0.2/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnIn
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
+github.com/spf13/viper v1.7.0/go.mod h1:8WkrPz2fc9jxqZNCJI/76HCieCp4Q8HaLFoCha5qpdg=
+github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
@@ -713,12 +719,67 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
+gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
+gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
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+k8s.io/cli-runtime v0.21.3 h1:eXevRomULAAGjQ7m6qo+AWHvtVRqaLG8WQICEBwjtmo=
+k8s.io/cli-runtime v0.21.3/go.mod h1:h65y0uXIXDnNjd5J+F3CvQU3ZNplH4+rjqbII7JkD4A=
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+k8s.io/kube-aggregator v0.21.3/go.mod h1:9OIUuR5KIsNZYP/Xsh4HBsaqbS7ICJpRz3XSKtKajRc=
+k8s.io/kube-openapi v0.0.0-20210305001622-591a79e4bda7/go.mod h1:wXW5VT87nVfh/iLV8FpR2uDvrFyomxbtb1KivDbvPTE=
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+k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e/go.mod h1:vHXdDvt9+2spS2Rx9ql3I8tycm3H9FDfdUoIuKCefvw=
+k8s.io/kubectl v0.21.3 h1:RmHvvz7tLnFmVqUzJuR44D8oE5zv1iyDojxSQllY+II=
+k8s.io/kubectl v0.21.3/go.mod h1:/x/kzrhfL1h1W07z6a1UTbd8SWZUYAWXskigkG4OBCg=
+k8s.io/metrics v0.21.3/go.mod h1:mN3Klf203Lw1hOsfg1MG7DR/kKUhwiyu8GSFCXZdz+o=
+k8s.io/utils v0.0.0-20201110183641-67b214c5f920 h1:CbnUZsM497iRC5QMVkHwyl8s2tB3g7yaSHkYPkpgelw=
+k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
+sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.19/go.mod h1:LEScyzhFmoF5pso/YSeBstl57mOzx9xlU9n85RGrDQg=
+sigs.k8s.io/kustomize/api v0.8.8/go.mod h1:He1zoK0nk43Pc6NlV085xDXDXTNprtcyKZVm3swsdNY=
+sigs.k8s.io/kustomize/api v0.8.10 h1:CqbdK/qT7JE+uVETkrVMk7pQf0fPFXk9+QQ//Q7sAtc=
+sigs.k8s.io/kustomize/api v0.8.10/go.mod h1:ImeIkhUU7GIhamOtKPlkllt+fkBKL5f6/4NLhVwkinA=
+sigs.k8s.io/kustomize/cmd/config v0.9.10/go.mod h1:Mrby0WnRH7hA6OwOYnYpfpiY0WJIMgYrEDfwOeFdMK0=
+sigs.k8s.io/kustomize/kustomize/v4 v4.1.2/go.mod h1:PxBvo4WGYlCLeRPL+ziT64wBXqbgfcalOS/SXa/tcyo=
+sigs.k8s.io/kustomize/kyaml v0.10.17/go.mod h1:mlQFagmkm1P+W4lZJbJ/yaxMd8PqMRSC4cPcfUVt5Hg=
+sigs.k8s.io/kustomize/kyaml v0.10.20 h1:L9JNKvJfCBpmYFr4tP0igpfj/pXP7nW2aXOWNtF5k1g=
+sigs.k8s.io/kustomize/kyaml v0.10.20/go.mod h1:TYWhGwW9vjoRh3rWqBwB/ZOXyEGRVWe7Ggc3+KZIO+c=
+sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
+sigs.k8s.io/structured-merge-diff/v4 v4.1.2 h1:Hr/htKFmJEbtMgS/UD0N+gtgctAqz81t3nu+sPzynno=
+sigs.k8s.io/structured-merge-diff/v4 v4.1.2/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
+sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
 k8s.io/api v0.31.3 h1:umzm5o8lFbdN/hIXbrK9oRpOproJO62CV1zqxXrLgk8=
 k8s.io/api v0.31.3/go.mod h1:UJrkIp9pnMOI9K2nlL6vwpxRzzEX5sWgn8kGQe92kCE=
 k8s.io/apimachinery v0.31.3 h1:6l0WhcYgasZ/wk9ktLq5vLaoXJJr5ts6lkaQzgeYPq4=
@@ -749,4 +810,4 @@ sigs.k8s.io/kustomize/kyaml v0.18.1/go.mod h1:C3L2BFVU1jgcddNBE1TxuVLgS46TjObMwW
 sigs.k8s.io/structured-merge-diff/v4 v4.4.3 h1:sCP7Vv3xx/CWIuTPVN38lUPx0uw0lcLfzaiDa8Ja01A=
 sigs.k8s.io/structured-merge-diff/v4 v4.4.3/go.mod h1:N8f93tFZh9U6vpxwRArLiikrE5/2tiu1w1AGfACIGE4=
 sigs.k8s.io/yaml v1.4.0 h1:Mk1wCc2gy/F0THH0TAp1QYyJNzRm2KCLy3o5ASXVI5E=
-sigs.k8s.io/yaml v1.4.0/go.mod h1:Ejl7/uTz7PSA4eKMyQCUTnhZYNmLIl+5c2lQPGR2BPY=
+sigs.k8s.io/yaml v1.4.0/go.mod h1:Ejl7/uTz7PSA4eKMyQCUTnhZYNmLIl+5c2lQPGR2BPY=

kubernetes/data_source_kubectl_kustomize_documents.go

@@ -0,0 +1,100 @@
+package kubernetes
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+
+	"sigs.k8s.io/kustomize/api/krusty"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/api/filesys"
+)
+
+func dataSourceKubectlKustomizeDocuments() *schema.Resource {
+	return &schema.Resource{
+		ReadContext: dataSourceKubectlKustomizeDocumentsRead,
+		Schema: map[string]*schema.Schema{
+			"target": &schema.Schema{
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"load_restrictor": &schema.Schema{
+				Type:     schema.TypeString,
+				Optional: true,
+				Default:  "rootOnly",
+			},
+			"add_managed_by_label": &schema.Schema{
+				Type: schema.TypeBool,
+				Optional: true,
+				Default: false,
+			},
+			"documents": &schema.Schema{
+				Type:     schema.TypeList,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				Computed: true,
+			},
+		},
+	}
+}
+
+func dataSourceKubectlKustomizeDocumentsRead(ctx context.Context, d *schema.ResourceData, m interface{}) diag.Diagnostics {
+	target := d.Get("target").(string)
+
+	opts, err := makeKustOpts(d)
+	if err != nil {
+		return diag.FromErr(err)
+	}
+
+	k := krusty.MakeKustomizer(opts)
+	memFS := filesys.MakeFsOnDisk()
+
+	rm, err := k.Run(memFS, target)
+	if err != nil {
+		return diag.FromErr(fmt.Errorf("error rendering kustomization: %w", err))
+	}
+
+	documents, err := readFromResMap(rm)
+	if err != nil {
+		return diag.FromErr(fmt.Errorf("error reading documents: %w", err))
+	}
+
+	d.SetId(target)
+	d.Set("documents", documents)
+	return nil
+}
+
+func makeKustOpts(d *schema.ResourceData) (*krusty.Options, error) {
+	opts := &krusty.Options{}
+
+	rName := d.Get("load_restrictor").(string)
+	switch rName {
+	case "none":
+		opts.LoadRestrictions = types.LoadRestrictionsNone
+	case "rootOnly":
+		opts.LoadRestrictions = types.LoadRestrictionsRootOnly
+	default:
+		return nil, fmt.Errorf("invalid restrictor '%s'", rName)
+	}
+
+	opts.AddManagedbyLabel = d.Get("add_managed_by_label").(bool)
+
+	return opts, nil
+}
+
+func readFromResMap(rm resmap.ResMap) ([]string, error) {
+	docs := make([]string, 0)
+
+	for _, res := range rm.Resources() {
+		b, err := res.AsYAML()
+		if err != nil {
+			return nil, err
+		}
+
+		docs = append(docs, string(b))
+	}
+
+	return docs, nil
+}

kubernetes/data_source_kubectl_kustomize_documents_test.go

@@ -0,0 +1,43 @@
+package kubernetes
+
+import (
+	"fmt"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+	"testing"
+)
+
+var kustTargetUrl = "https://github.com/kubernetes-sigs/kustomize/examples/multibases?ref=v1.0.6"
+
+func TestAccKubectlDataSourceKustomizeDocuments_url(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck: nil,
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: kubectlKustomizeDocumentsConfig(kustTargetUrl),
+				Check: resource.TestCheckResourceAttr("data.kubectl_kustomize_documents.test", "documents.#", "3"),
+			},
+		},
+	})
+}
+
+func TestAccKubectlDataSourceKustomizeDocuments_localDir(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck: nil,
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: kubectlKustomizeDocumentsConfig("../test/data/kustomize/helloWorld"),
+				Check: resource.TestCheckResourceAttr("data.kubectl_kustomize_documents.test", "documents.#", "3"),
+			},
+		},
+	})
+}
+
+func kubectlKustomizeDocumentsConfig(target string) string {
+	return fmt.Sprintf(`
+data "kubectl_kustomize_documents" "test" {
+	target = "%s"
+}
+	`, target)
+}

kubernetes/provider.go

@@ -174,10 +174,11 @@ func Provider() *schema.Provider {
 		},
 
 		DataSourcesMap: map[string]*schema.Resource{
-			"kubectl_filename_list":  dataSourceKubectlFilenameList(),
-			"kubectl_file_documents": dataSourceKubectlFileDocuments(),
-			"kubectl_path_documents": dataSourceKubectlPathDocuments(),
-			"kubectl_server_version": dataSourceKubectlServerVersion(),
+			"kubectl_filename_list":       dataSourceKubectlFilenameList(),
+			"kubectl_file_documents":      dataSourceKubectlFileDocuments(),
+			"kubectl_path_documents":      dataSourceKubectlPathDocuments(),
+			"kubectl_server_version":      dataSourceKubectlServerVersion(),
+			"kubectl_kustomize_documents": dataSourceKubectlKustomizeDocuments(),
 		},
 
 		ResourcesMap: map[string]*schema.Resource{

test/data/kustomize/helloWorld/README.md

@@ -0,0 +1 @@
+Example sourced from https://github.com/kubernetes-sigs/kustomize/tree/v3.3.1/examples/helloWorld

test/data/kustomize/helloWorld/configMap.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: the-map
+data:
+  altGreeting: "Good Morning!"
+  enableRisky: "false"

test/data/kustomize/helloWorld/deployment.yaml

@@ -0,0 +1,30 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: the-deployment
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        deployment: hello
+    spec:
+      containers:
+      - name: the-container
+        image: monopole/hello:1
+        command: ["/hello",
+                  "--port=8080",
+                  "--enableRiskyFeature=$(ENABLE_RISKY)"]
+        ports:
+        - containerPort: 8080
+        env:
+        - name: ALT_GREETING
+          valueFrom:
+            configMapKeyRef:
+              name: the-map
+              key: altGreeting
+        - name: ENABLE_RISKY
+          valueFrom:
+            configMapKeyRef:
+              name: the-map
+              key: enableRisky

test/data/kustomize/helloWorld/kustomization.yaml

@@ -0,0 +1,9 @@
+# Example configuration for the webserver
+# at https://github.com/monopole/hello
+commonLabels:
+  app: hello
+
+resources:
+- deployment.yaml
+- service.yaml
+- configMap.yaml

test/data/kustomize/helloWorld/service.yaml

@@ -0,0 +1,12 @@
+kind: Service
+apiVersion: v1
+metadata:
+  name: the-service
+spec:
+  selector:
+    deployment: hello
+  type: LoadBalancer
+  ports:
+  - protocol: TCP
+    port: 8666
+    targetPort: 8080