Add examples for github:deployKey:create scaffolder action

Signed-off-by: parmar-abhinav <abhi171b010@gmail.com>

.changeset/tame-spies-hunt.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-scaffolder-backend': patch
+---
+
+Add examples for `github:deployKey:create` scaffolder action & improve related tests

plugins/scaffolder-backend/src/scaffolder/actions/builtin/github/githubDeployKey.examples.test.ts

@@ -0,0 +1,111 @@
+/*
+ * Copyright 2023 The Backstage 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.
+ */
+import { TemplateAction } from '@backstage/plugin-scaffolder-node';
+import { getVoidLogger } from '@backstage/backend-common';
+import { createGithubDeployKeyAction } from './githubDeployKey';
+import yaml from 'yaml';
+import { examples } from './githubDeployKey.examples';
+import { PassThrough } from 'stream';
+import { ConfigReader } from '@backstage/config';
+import { ScmIntegrations } from '@backstage/integration';
+
+const mockOctokit = {
+  rest: {
+    repos: {
+      createDeployKey: jest.fn(),
+    },
+    actions: {
+      getRepoPublicKey: jest.fn(),
+      createOrUpdateRepoSecret: jest.fn(),
+    },
+  },
+};
+jest.mock('octokit', () => ({
+  Octokit: class {
+    constructor() {
+      return mockOctokit;
+    }
+  },
+}));
+
+const publicKey = '2Sg8iYjAxxmI2LvUXpJjkYrMxURPc8r+dB7TJyvvcCU=';
+
+describe('Usage examples', () => {
+  const config = new ConfigReader({
+    integrations: {
+      github: [
+        { host: 'github.com', token: 'tokenlols' },
+        { host: 'ghe.github.com' },
+      ],
+    },
+  });
+  const integrations = ScmIntegrations.fromConfig(config);
+  let action: TemplateAction<any>;
+
+  const mockContext = {
+    workspacePath: 'lol',
+    logger: getVoidLogger(),
+    logStream: new PassThrough(),
+    output: jest.fn(),
+    createTemporaryDirectory: jest.fn(),
+  };
+
+  beforeEach(() => {
+    jest.resetAllMocks();
+
+    action = createGithubDeployKeyAction({
+      integrations,
+    });
+  });
+
+  it('Example 1: Create and store a Deploy Key', async () => {
+    const input = yaml.parse(examples[0].example).steps[0].input;
+
+    mockOctokit.rest.actions.getRepoPublicKey.mockResolvedValue({
+      data: {
+        key: publicKey,
+        key_id: 'keyid',
+      },
+    });
+
+    await action.handler({
+      ...mockContext,
+      input,
+    });
+
+    expect(mockOctokit.rest.repos.createDeployKey).toHaveBeenCalledWith({
+      owner: 'owner',
+      repo: 'repository',
+      title: 'Push Tags',
+      key: 'pubkey',
+    });
+
+    expect(
+      mockOctokit.rest.actions.createOrUpdateRepoSecret,
+    ).toHaveBeenCalledWith({
+      owner: 'owner',
+      repo: 'repository',
+      secret_name: 'PUSH_TAGS_PRIVATE_KEY',
+      key_id: 'keyid',
+      encrypted_value: expect.any(String),
+    });
+
+    expect(mockContext.output).toHaveBeenCalledWith(
+      'privateKeySecretName',
+      'PUSH_TAGS_PRIVATE_KEY',
+    );
+  });
+});

plugins/scaffolder-backend/src/scaffolder/actions/builtin/github/githubDeployKey.examples.ts

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2023 The Backstage 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.
+ */
+import { TemplateExample } from '@backstage/plugin-scaffolder-node';
+import yaml from 'yaml';
+
+export const examples: TemplateExample[] = [
+  {
+    description: 'Example 1: Create and store a Deploy Key',
+    example: yaml.stringify({
+      steps: [
+        {
+          action: 'github:deployKey:create',
+          name: 'Create and store a Deploy Key',
+          input: {
+            repoUrl: 'github.com?repo=repository&owner=owner',
+            publicKey: 'pubkey',
+            privateKey: 'privkey',
+            deployKeyName: 'Push Tags',
+          },
+        },
+      ],
+    }),
+  },
+];

plugins/scaffolder-backend/src/scaffolder/actions/builtin/github/githubDeployKey.ts

@@ -21,6 +21,7 @@ import { parseRepoUrl } from '../publish/util';
 import { getOctokitOptions } from './helpers';
 import { Octokit } from 'octokit';
 import Sodium from 'libsodium-wrappers';
+import { examples } from './githubDeployKey.examples';
 
 /**
  * Creates an `github:deployKey:create` Scaffolder action that creates a Deploy Key
@@ -43,6 +44,7 @@ export function createGithubDeployKeyAction(options: {
   }>({
     id: 'github:deployKey:create',
     description: 'Creates and stores Deploy Keys',
+    examples,
     schema: {
       input: {
         type: 'object',