ec_extension: implement extension resource

implement ec_extension resource and make example

Closes #102

ec/ecresource/extensionresource/create.go

@@ -0,0 +1,46 @@
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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 extensionresource
+
+import (
+	"context"
+	"github.com/elastic/cloud-sdk-go/pkg/api"
+	"github.com/elastic/cloud-sdk-go/pkg/multierror"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+)
+
+// Create will createResource a new deployment traffic filter ruleset
+func createResource(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	var client = meta.(*api.API)
+
+	res, err := createRequest(client, d)
+	if err != nil {
+		return diag.FromErr(err)
+	}
+
+	d.SetId(*res.Payload.ID)
+
+	if d.Get("file_path") != nil {
+		_, err = uploadRequest(client, d)
+		if err != nil {
+			return diag.FromErr(multierror.NewPrefixed("failed to upload file", err))
+		}
+	}
+	return readResource(ctx, d, meta)
+}

ec/ecresource/extensionresource/create_test.go

@@ -0,0 +1,92 @@
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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 extensionresource
+
+import (
+	"context"
+	"testing"
+
+	"github.com/elastic/cloud-sdk-go/pkg/api"
+	"github.com/elastic/cloud-sdk-go/pkg/api/mock"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/stretchr/testify/assert"
+
+	"github.com/elastic/terraform-provider-ec/ec/internal/util"
+)
+
+func Test_createResource(t *testing.T) {
+	tc500Err := util.NewResourceData(t, util.ResDataParams{
+		ID:     "12345678",
+		State:  newExtension(),
+		Schema: newSchema(),
+	})
+	wantTC500 := util.NewResourceData(t, util.ResDataParams{
+		ID:     "12345678",
+		State:  newExtension(),
+		Schema: newSchema(),
+	})
+
+	type args struct {
+		ctx  context.Context
+		d    *schema.ResourceData
+		meta interface{}
+	}
+	tests := []struct {
+		name   string
+		args   args
+		want   diag.Diagnostics
+		wantRD *schema.ResourceData
+	}{
+		{
+			name: "returns an error when it receives a 500",
+			args: args{
+				d: tc500Err,
+				meta: api.NewMock(mock.NewErrorResponse(500, mock.APIError{
+					Code: "some", Message: "message",
+				})),
+			},
+			want: diag.Diagnostics{
+				{
+					Severity: diag.Error,
+					Summary:  "api error: 1 error occurred:\n\t* some: message\n\n",
+				},
+			},
+			wantRD: wantTC500,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := createResource(tt.args.ctx, tt.args.d, tt.args.meta)
+			assert.Equal(t, tt.want, got)
+			var want interface{}
+			if tt.wantRD != nil {
+				if s := tt.wantRD.State(); s != nil {
+					want = s.Attributes
+				}
+			}
+
+			var gotState interface{}
+			if s := tt.args.d.State(); s != nil {
+				gotState = s.Attributes
+			}
+
+			assert.Equal(t, want, gotState)
+		})
+	}
+}

ec/ecresource/extensionresource/delete.go

@@ -0,0 +1,48 @@
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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 extensionresource
+
+import (
+	"context"
+	"github.com/elastic/cloud-sdk-go/pkg/api"
+	"github.com/elastic/cloud-sdk-go/pkg/api/apierror"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+)
+
+func deleteResource(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	var client = meta.(*api.API)
+
+	_, err := deleteRequest(client, d)
+
+	if err != nil {
+		if alreadyDestroyed(err) {
+			d.SetId("")
+			return nil
+		}
+
+		return diag.FromErr(err)
+	}
+
+	return nil
+}
+
+func alreadyDestroyed(err error) bool {
+	// If the extension is already destroyed, API return 403.
+	return apierror.IsRuntimeStatusCode(err, 403)
+}

ec/ecresource/extensionresource/delete_test.go

@@ -0,0 +1,115 @@
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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 extensionresource
+
+import (
+	"context"
+	"testing"
+
+	"github.com/elastic/cloud-sdk-go/pkg/api"
+	"github.com/elastic/cloud-sdk-go/pkg/api/mock"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/stretchr/testify/assert"
+
+	"github.com/elastic/terraform-provider-ec/ec/internal/util"
+)
+
+func Test_deleteResource(t *testing.T) {
+	tc500Err := util.NewResourceData(t, util.ResDataParams{
+		ID:     "12345678",
+		State:  newExtension(),
+		Schema: newSchema(),
+	})
+	wantTC500 := util.NewResourceData(t, util.ResDataParams{
+		ID:     "12345678",
+		State:  newExtension(),
+		Schema: newSchema(),
+	})
+
+	tc403Err := util.NewResourceData(t, util.ResDataParams{
+		ID:     "12345678",
+		State:  newExtension(),
+		Schema: newSchema(),
+	})
+	wantTC403 := util.NewResourceData(t, util.ResDataParams{
+		ID:     "12345678",
+		State:  newExtension(),
+		Schema: newSchema(),
+	})
+	wantTC403.SetId("")
+
+	type args struct {
+		ctx  context.Context
+		d    *schema.ResourceData
+		meta interface{}
+	}
+	tests := []struct {
+		name   string
+		args   args
+		want   diag.Diagnostics
+		wantRD *schema.ResourceData
+	}{
+		{
+			name: "returns an error when it receives a 500",
+			args: args{
+				d: tc500Err,
+				meta: api.NewMock(mock.NewErrorResponse(500, mock.APIError{
+					Code: "some", Message: "message",
+				})),
+			},
+			want: diag.Diagnostics{
+				{
+					Severity: diag.Error,
+					Summary:  "api error: 1 error occurred:\n\t* some: message\n\n",
+				},
+			},
+			wantRD: wantTC500,
+		},
+		{
+			name: "returns nil and unsets the state when the error is known",
+			args: args{
+				d: tc403Err,
+				meta: api.NewMock(mock.NewErrorResponse(403, mock.APIError{
+					Code: "some", Message: "message",
+				})),
+			},
+			want:   nil,
+			wantRD: wantTC403,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := deleteResource(tt.args.ctx, tt.args.d, tt.args.meta)
+			assert.Equal(t, tt.want, got)
+			var want interface{}
+			if tt.wantRD != nil {
+				if s := tt.wantRD.State(); s != nil {
+					want = s.Attributes
+				}
+			}
+
+			var gotState interface{}
+			if s := tt.args.d.State(); s != nil {
+				gotState = s.Attributes
+			}
+
+			assert.Equal(t, want, gotState)
+		})
+	}
+}

ec/ecresource/extensionresource/read.go

@@ -0,0 +1,83 @@
+// Licensed to Elasticsearch B.V. under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Elasticsearch B.V. licenses this file to you 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 extensionresource
+
+import (
+	"context"
+	"errors"
+	"github.com/elastic/cloud-sdk-go/pkg/api"
+	"github.com/elastic/cloud-sdk-go/pkg/api/apierror"
+	"github.com/elastic/cloud-sdk-go/pkg/client/extensions"
+	"github.com/elastic/cloud-sdk-go/pkg/models"
+	"github.com/elastic/cloud-sdk-go/pkg/multierror"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+)
+
+func readResource(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	var client = meta.(*api.API)
+
+	res, err := readRequest(d, client)
+
+	if err != nil {
+		if extensionNotFound(err) {
+			d.SetId("")
+			return nil
+		}
+
+		return diag.FromErr(multierror.NewPrefixed("failed reading extension", err))
+	}
+
+	if err := modelToState(d, res.Payload); err != nil {
+		return diag.FromErr(err)
+	}
+
+	return nil
+}
+
+func extensionNotFound(err error) bool {
+	// We're using the As() call since we do not care about the error value
+	// but do care about the error's contents type since it's an implicit 404.
+	var extensionNotFound *extensions.GetExtensionNotFound
+	if errors.As(err, &extensionNotFound) {
+		return true
+	}
+
+	// We also check for the case where a 403 is thrown for ESS.
+	return apierror.IsRuntimeStatusCode(err, 403)
+}
+
+func modelToState(d *schema.ResourceData, model *models.Extension) error {
+	if err := d.Set("name", model.Name); err != nil {
+		return err
+	}
+
+	if err := d.Set("version", model.Version); err != nil {
+		return err
+	}
+
+	if err := d.Set("extension_type", model.ExtensionType); err != nil {
+		return err
+	}
+
+	if err := d.Set("description", model.Description); err != nil {
+		return err
+	}
+
+	return nil
+}