prettier

.github/dependabot.yml

@@ -1,18 +0,0 @@
-version: 2
-updates:
-   - package-ecosystem: npm
-     directory: /
-     schedule:
-        interval: weekly
-     groups:
-        actions:
-           patterns:
-              - '*'
-   - package-ecosystem: github-actions
-     directory: .github/workflows
-     schedule:
-        interval: weekly
-     groups:
-        actions:
-           patterns:
-              - '*'

.github/workflows/run-integration-tests-basic.yml

@@ -64,13 +64,9 @@ jobs:
               images: nginx:1.14.2
               manifests: |
                  test/integration/manifests/test.yml
-                 test/integration/manifests/manifest_test_dir/test.yml
               action: deploy
 
          - name: Checking if deployments and services were created
            run: |
               python test/integration/k8s-deploy-test.py namespace=${{ env.NAMESPACE }} kind=Deployment name=nginx-deployment containerName=nginx:1.14.2 labels=app:nginx,workflow:actions.github.com-k8s-deploy,workflowFriendlyName:Minikube_Integration_Tests_-_basic selectorLabels=app:nginx
               python test/integration/k8s-deploy-test.py namespace=${{ env.NAMESPACE }} kind=Service name=nginx-service labels=workflow:actions.github.com-k8s-deploy,workflowFriendlyName:Minikube_Integration_Tests_-_basic selectorLabels=app:nginx
-
-              python test/integration/k8s-deploy-test.py namespace=${{ env.NAMESPACE }} kind=Deployment name=nginx-deployment3 containerName=nginx:1.14.2 labels=app:nginx3,workflow:actions.github.com-k8s-deploy,workflowFriendlyName:Minikube_Integration_Tests_-_basic selectorLabels=app:nginx3
-              python test/integration/k8s-deploy-test.py namespace=${{ env.NAMESPACE }} kind=Service name=nginx-service3 labels=workflow:actions.github.com-k8s-deploy,workflowFriendlyName:Minikube_Integration_Tests_-_basic selectorLabels=app:nginx3

src/strategyHelpers/deploymentHelper.ts

@@ -10,7 +10,12 @@ import {Kubectl, Resource} from '../types/kubectl'
 import {deployPodCanary} from './canary/podCanaryHelper'
 import {deploySMICanary} from './canary/smiCanaryHelper'
 import {DeploymentConfig} from '../types/deploymentConfig'
-import {deployBlueGreen} from './blueGreen/deploy'
+import {
+   deployBlueGreen,
+   deployBlueGreenIngress,
+   deployBlueGreenService
+} from './blueGreen/deploy'
+import {deployBlueGreenSMI} from './blueGreen/deploy'
 import {DeploymentStrategy} from '../types/deploymentStrategy'
 import * as core from '@actions/core'
 import {
@@ -34,6 +39,7 @@ import {
    normalizeWorkflowStrLabel
 } from '../utilities/githubUtils'
 import {getDeploymentConfig} from '../utilities/dockerUtils'
+import {deploy} from '../actions/deploy'
 import {DeployResult} from '../types/deployResult'
 
 export async function deployManifests(

src/types/privatekubectl.test.ts

@@ -1,14 +1,12 @@
-import * as fileUtils from '../utilities/fileUtils'
-import * as fs from 'fs'
 import {
    PrivateKubectl,
    extractFileNames,
-   replaceFileNamesWithShallowNamesRelativeToTemp
+   replaceFileNamesWithBaseNames
 } from './privatekubectl'
 import * as exec from '@actions/exec'
 
 describe('Private kubectl', () => {
-   const testString = `kubectl annotate -f /tmp/testdir/test.yml,/tmp/test2.yml,/tmp/testdir/subdir/test3.yml -f /tmp/test4.yml --filename /tmp/test5.yml actions.github.com/k8s-deploy={"run":"3498366832","repository":"jaiveerk/k8s-deploy","workflow":"Minikube Integration Tests - private cluster","workflowFileName":"run-integration-tests-private.yml","jobName":"run-integration-test","createdBy":"jaiveerk","runUri":"https://github.com/jaiveerk/k8s-deploy/actions/runs/3498366832","commit":"c63b323186ea1320a31290de6dcc094c06385e75","lastSuccessRunCommit":"NA","branch":"refs/heads/main","deployTimestamp":1668787848577,"dockerfilePaths":{"nginx:1.14.2":""},"manifestsPaths":["https://github.com/jaiveerk/k8s-deploy/blob/c63b323186ea1320a31290de6dcc094c06385e75/test/integration/test.yml"],"helmChartPaths":[],"provider":"GitHub"} --overwrite --namespace test-3498366832`
+   const testString = `kubectl annotate -f testdir/test.yml,test2.yml,testdir/subdir/test3.yml -f test4.yml --filename test5.yml actions.github.com/k8s-deploy={"run":"3498366832","repository":"jaiveerk/k8s-deploy","workflow":"Minikube Integration Tests - private cluster","workflowFileName":"run-integration-tests-private.yml","jobName":"run-integration-test","createdBy":"jaiveerk","runUri":"https://github.com/jaiveerk/k8s-deploy/actions/runs/3498366832","commit":"c63b323186ea1320a31290de6dcc094c06385e75","lastSuccessRunCommit":"NA","branch":"refs/heads/main","deployTimestamp":1668787848577,"dockerfilePaths":{"nginx:1.14.2":""},"manifestsPaths":["https://github.com/jaiveerk/k8s-deploy/blob/c63b323186ea1320a31290de6dcc094c06385e75/test/integration/manifests/test.yml"],"helmChartPaths":[],"provider":"GitHub"} --overwrite --namespace test-3498366832`
    const mockKube = new PrivateKubectl(
       'kubectlPath',
       'namespace',
@@ -17,32 +15,19 @@ describe('Private kubectl', () => {
       'resourceName'
    )
 
-   const spy = jest
-      .spyOn(fileUtils, 'getTempDirectory')
-      .mockImplementation(() => {
-         return '/tmp'
-      })
-
-   jest.spyOn(fs, 'writeFileSync').mockImplementation(() => {})
-   jest.spyOn(fs, 'readFileSync').mockImplementation((filename) => {
-      return 'test contents'
-   })
-
    it('should extract filenames correctly', () => {
       expect(extractFileNames(testString)).toEqual([
-         '/tmp/testdir/test.yml',
-         '/tmp/test2.yml',
-         '/tmp/testdir/subdir/test3.yml',
-         '/tmp/test4.yml',
-         '/tmp/test5.yml'
+         'testdir/test.yml',
+         'test2.yml',
+         'testdir/subdir/test3.yml',
+         'test4.yml',
+         'test5.yml'
       ])
    })
 
-   it('should replace filenames with shallow names for relative locations in tmp correctly', () => {
-      expect(
-         replaceFileNamesWithShallowNamesRelativeToTemp(testString)
-      ).toEqual(
-         `kubectl annotate -f testdir-test.yml,test2.yml,testdir-subdir-test3.yml -f test4.yml --filename test5.yml actions.github.com/k8s-deploy={"run":"3498366832","repository":"jaiveerk/k8s-deploy","workflow":"Minikube Integration Tests - private cluster","workflowFileName":"run-integration-tests-private.yml","jobName":"run-integration-test","createdBy":"jaiveerk","runUri":"https://github.com/jaiveerk/k8s-deploy/actions/runs/3498366832","commit":"c63b323186ea1320a31290de6dcc094c06385e75","lastSuccessRunCommit":"NA","branch":"refs/heads/main","deployTimestamp":1668787848577,"dockerfilePaths":{"nginx:1.14.2":""},"manifestsPaths":["https://github.com/jaiveerk/k8s-deploy/blob/c63b323186ea1320a31290de6dcc094c06385e75/test/integration/test.yml"],"helmChartPaths":[],"provider":"GitHub"} --overwrite --namespace test-3498366832`
+   it('should replace filenames with basenames correctly', () => {
+      expect(replaceFileNamesWithBaseNames(testString)).toEqual(
+         `kubectl annotate -f test.yml,test2.yml,test3.yml -f test4.yml --filename test5.yml actions.github.com/k8s-deploy={"run":"3498366832","repository":"jaiveerk/k8s-deploy","workflow":"Minikube Integration Tests - private cluster","workflowFileName":"run-integration-tests-private.yml","jobName":"run-integration-test","createdBy":"jaiveerk","runUri":"https://github.com/jaiveerk/k8s-deploy/actions/runs/3498366832","commit":"c63b323186ea1320a31290de6dcc094c06385e75","lastSuccessRunCommit":"NA","branch":"refs/heads/main","deployTimestamp":1668787848577,"dockerfilePaths":{"nginx:1.14.2":""},"manifestsPaths":["https://github.com/jaiveerk/k8s-deploy/blob/c63b323186ea1320a31290de6dcc094c06385e75/test/integration/manifests/test.yml"],"helmChartPaths":[],"provider":"GitHub"} --overwrite --namespace test-3498366832`
       )
    })
 

src/types/privatekubectl.ts

@@ -5,7 +5,6 @@ import * as core from '@actions/core'
 import * as os from 'os'
 import * as fs from 'fs'
 import * as path from 'path'
-import {getTempDirectory} from '../utilities/fileUtils'
 
 export class PrivateKubectl extends Kubectl {
    protected async execute(args: string[], silent: boolean = false) {
@@ -19,7 +18,8 @@ export class PrivateKubectl extends Kubectl {
       }
 
       if (this.containsFilenames(kubectlCmd)) {
-         kubectlCmd = replaceFileNamesWithShallowNamesRelativeToTemp(kubectlCmd)
+         // For private clusters, files will referenced solely by their basename
+         kubectlCmd = replaceFileNamesWithBaseNames(kubectlCmd)
          addFileFlag = true
       }
 
@@ -43,9 +43,22 @@ export class PrivateKubectl extends Kubectl {
       ]
 
       if (addFileFlag) {
-         const tempDirectory = getTempDirectory()
-         eo.cwd = path.join(tempDirectory, 'manifests')
+         const filenames = extractFileNames(kubectlCmd)
+
+         const tempDirectory =
+            process.env['runner.tempDirectory'] || os.tmpdir() + '/manifests'
+         eo.cwd = tempDirectory
          privateClusterArgs.push(...['--file', '.'])
+
+         for (const filename of filenames) {
+            try {
+               this.moveFileToTempManifestDir(filename)
+            } catch (e) {
+               core.debug(
+                  `Error moving file ${filename} to temp directory: ${e}`
+               )
+            }
+         }
       }
 
       core.debug(
@@ -85,58 +98,63 @@ export class PrivateKubectl extends Kubectl {
    private containsFilenames(str: string) {
       return str.includes('-f ') || str.includes('filename ')
    }
-}
 
-function createTempManifestsDirectory(): string {
-   const manifestsDirPath = path.join(getTempDirectory(), 'manifests')
-   if (!fs.existsSync(manifestsDirPath)) {
-      fs.mkdirSync(manifestsDirPath, {recursive: true})
+   private createTempManifestsDirectory() {
+      const manifestsDir = '/tmp/manifests'
+      if (!fs.existsSync('/tmp/manifests')) {
+         fs.mkdirSync('/tmp/manifests', {recursive: true})
+      }
    }
 
-   return manifestsDirPath
+   private moveFileToTempManifestDir(file: string) {
+      this.createTempManifestsDirectory()
+      if (!fs.existsSync('/tmp/' + file)) {
+         core.debug(
+            '/tmp/' +
+               file +
+               ' does not exist, and therefore cannot be moved to the manifest directory'
+         )
+      }
+
+      fs.copyFile('/tmp/' + file, '/tmp/manifests/' + file, function (err) {
+         if (err) {
+            core.debug(
+               'Could not rename ' +
+                  '/tmp/' +
+                  file +
+                  ' to  ' +
+                  '/tmp/manifests/' +
+                  file +
+                  ' ERROR: ' +
+                  err
+            )
+            return
+         }
+         core.debug(
+            "Successfully moved file '" +
+               file +
+               "' from /tmp to /tmp/manifest directory"
+         )
+      })
+   }
 }
 
-export function replaceFileNamesWithShallowNamesRelativeToTemp(
-   kubectlCmd: string
-) {
+export function replaceFileNamesWithBaseNames(kubectlCmd: string) {
    let filenames = extractFileNames(kubectlCmd)
-   core.debug(`filenames originally provided in kubectl command: ${filenames}`)
-   let relativeShallowNames = filenames.map((filename) => {
-      const relativeName = path.relative(getTempDirectory(), filename)
-
-      const relativePathElements = relativeName.split(path.sep)
-
-      const shallowName = relativePathElements.join('-')
-
-      // make manifests dir in temp if it doesn't already exist
-      const manifestsTempDir = createTempManifestsDirectory()
-
-      const shallowPath = path.join(manifestsTempDir, shallowName)
-      core.debug(
-         `moving contents from ${filename} to shallow location at ${shallowPath}`
-      )
-
-      core.debug(`reading contents from ${filename}`)
-      const contents = fs.readFileSync(filename).toString()
-
-      core.debug(`writing contents to new path ${shallowPath}`)
-      fs.writeFileSync(shallowPath, contents)
-
-      return shallowName
-   })
+   let basenames = filenames.map((filename) => path.basename(filename))
 
    let result = kubectlCmd
-   if (filenames.length != relativeShallowNames.length) {
+   if (filenames.length != basenames.length) {
       throw Error(
-         'replacing filenames with relative path from temp dir, ' +
+         'replacing filenames with basenames, ' +
             filenames.length +
             ' filenames != ' +
-            relativeShallowNames.length +
+            basenames.length +
             'basenames'
       )
    }
    for (let index = 0; index < filenames.length; index++) {
-      result = result.replace(filenames[index], relativeShallowNames[index])
+      result = result.replace(filenames[index], basenames[index])
    }
    return result
 }

src/utilities/fileUtils.test.ts

@@ -1,14 +1,20 @@
-import * as fileUtils from './fileUtils'
+import {
+   getFilesFromDirectoriesAndURLs,
+   getTempDirectory,
+   urlFileKind,
+   writeYamlFromURLToFile
+} from './fileUtils'
 
 import * as yaml from 'js-yaml'
 import * as fs from 'fs'
 import * as path from 'path'
+import {succeeded} from '../types/errorable'
 
 const sampleYamlUrl =
    'https://raw.githubusercontent.com/kubernetes/website/main/content/en/examples/controllers/nginx-deployment.yaml'
 describe('File utils', () => {
    test('correctly parses a yaml file from a URL', async () => {
-      const tempFile = await fileUtils.writeYamlFromURLToFile(sampleYamlUrl, 0)
+      const tempFile = await writeYamlFromURLToFile(sampleYamlUrl, 0)
       const fileContents = fs.readFileSync(tempFile).toString()
       const inputObjects = yaml.safeLoadAll(fileContents)
       expect(inputObjects).toHaveLength(1)
@@ -24,34 +30,34 @@ describe('File utils', () => {
 
       const testPath = path.join('test', 'unit', 'manifests')
       await expect(
-         fileUtils.getFilesFromDirectoriesAndURLs([testPath, badUrl])
+         getFilesFromDirectoriesAndURLs([testPath, badUrl])
       ).rejects.toThrow()
    })
 
-   it('detects files in nested directories with the same name and ignores non-manifest files and empty dirs', async () => {
+   it('detects files in nested directories and ignores non-manifest files and empty dirs', async () => {
       const testPath = path.join('test', 'unit', 'manifests')
-      const testSearch: string[] =
-         await fileUtils.getFilesFromDirectoriesAndURLs([
-            testPath,
-            sampleYamlUrl
-         ])
+      const testSearch: string[] = await getFilesFromDirectoriesAndURLs([
+         testPath,
+         sampleYamlUrl
+      ])
 
       const expectedManifests = [
-         'test/unit/manifests/manifest_test_dir/another_layer/test-ingress.yaml',
-         'test/unit/manifests/manifest_test_dir/another_layer/nested-test-service.yaml',
+         'test/unit/manifests/manifest_test_dir/another_layer/deep-ingress.yaml',
+         'test/unit/manifests/manifest_test_dir/another_layer/deep-service.yaml',
          'test/unit/manifests/manifest_test_dir/nested-test-service.yaml',
          'test/unit/manifests/test-ingress.yml',
          'test/unit/manifests/test-ingress-new.yml',
          'test/unit/manifests/test-service.yml'
       ]
 
+      // is there a more efficient way to test equality w random order?
       expect(testSearch).toHaveLength(8)
       expectedManifests.forEach((fileName) => {
          if (fileName.startsWith('test/unit')) {
             expect(testSearch).toContain(fileName)
          } else {
-            expect(fileName.includes(fileUtils.urlFileKind)).toBe(true)
-            expect(fileName.startsWith(fileUtils.getTempDirectory()))
+            expect(fileName.includes(urlFileKind)).toBe(true)
+            expect(fileName.startsWith(getTempDirectory()))
          }
       })
    })
@@ -66,7 +72,7 @@ describe('File utils', () => {
       )
 
       expect(
-         fileUtils.getFilesFromDirectoriesAndURLs([badPath, goodPath])
+         getFilesFromDirectoriesAndURLs([badPath, goodPath])
       ).rejects.toThrowError()
    })
 
@@ -86,7 +92,7 @@ describe('File utils', () => {
       )
 
       expect(
-         await fileUtils.getFilesFromDirectoriesAndURLs([
+         await getFilesFromDirectoriesAndURLs([
             outerPath,
             fileAtOuter,
             innerPath
@@ -96,24 +102,6 @@ describe('File utils', () => {
 
    it('throws an error for an invalid URL', async () => {
       const badUrl = 'https://www.github.com'
-      await expect(
-         fileUtils.writeYamlFromURLToFile(badUrl, 0)
-      ).rejects.toBeTruthy()
-   })
-})
-
-describe('moving files to temp', () => {
-   it('correctly moves the contents of a file to the temporary directory', () => {
-      jest.spyOn(fs, 'writeFileSync').mockImplementation(() => {})
-      jest.spyOn(fs, 'readFileSync').mockImplementation((filename) => {
-         return 'test contents'
-      })
-      const originalFilePath = path.join('path', 'in', 'repo')
-
-      const output = fileUtils.moveFileToTmpDir(originalFilePath)
-
-      expect(output).toEqual(
-         path.join(fileUtils.getTempDirectory(), '/path/in/repo')
-      )
+      await expect(writeYamlFromURLToFile(badUrl, 0)).rejects.toBeTruthy()
    })
 })

src/utilities/fileUtils.ts

@@ -23,7 +23,7 @@ export function writeObjectsToFile(inputObjects: any[]): string[] {
          const inputObjectString = JSON.stringify(inputObject)
 
          if (inputObject?.metadata?.name) {
-            const fileName = getNewTempManifestFileName(
+            const fileName = getManifestFileName(
                inputObject.kind,
                inputObject.metadata.name
             )
@@ -52,7 +52,7 @@ export function writeManifestToFile(
 ): string {
    if (inputObjectString) {
       try {
-         const fileName = getNewTempManifestFileName(kind, name)
+         const fileName = getManifestFileName(kind, name)
          fs.writeFileSync(path.join(fileName), inputObjectString)
          return fileName
       } catch (ex) {
@@ -63,27 +63,7 @@ export function writeManifestToFile(
    }
 }
 
-export function moveFileToTmpDir(originalFilepath: string) {
-   const tempDirectory = getTempDirectory()
-   const newPath = path.join(tempDirectory, originalFilepath)
-
-   core.debug(`reading original contents from path: ${originalFilepath}`)
-   const contents = fs.readFileSync(originalFilepath).toString()
-
-   const dirName = path.dirname(newPath)
-   if (!fs.existsSync(dirName)) {
-      core.debug(`path ${dirName} doesn't exist yet, making new dir...`)
-      fs.mkdirSync(dirName, {recursive: true})
-   }
-   core.debug(`writing contents to new path ${newPath}`)
-   fs.writeFileSync(path.join(newPath), contents)
-
-   core.debug(`moved contents from ${originalFilepath} to ${newPath}`)
-
-   return newPath
-}
-
-function getNewTempManifestFileName(kind: string, name: string) {
+function getManifestFileName(kind: string, name: string) {
    const filePath = `${kind}_${name}_${getCurrentTime().toString()}`
    const tempDirectory = getTempDirectory()
    return path.join(tempDirectory, path.basename(filePath))
@@ -150,7 +130,7 @@ export async function writeYamlFromURLToFile(
                )
             }
 
-            const targetPath = getNewTempManifestFileName(
+            const targetPath = getManifestFileName(
                urlFileKind,
                fileNumber.toString()
             )

src/utilities/manifestUpdateUtils.test.ts

@@ -1,28 +0,0 @@
-import * as fileUtils from './fileUtils'
-import * as manifestUpdateUtils from './manifestUpdateUtils'
-import * as path from 'path'
-import * as fs from 'fs'
-
-describe('manifestUpdateUtils', () => {
-   jest.spyOn(fileUtils, 'moveFileToTmpDir').mockImplementation((filename) => {
-      return path.join('/tmp', filename)
-   })
-   jest.spyOn(fs, 'writeFileSync').mockImplementation(() => {})
-   jest.spyOn(fs, 'readFileSync').mockImplementation((filename) => {
-      return 'test contents'
-   })
-
-   it('should place all files within the temp dir with the same path that they have in the repo', () => {
-      const originalFilePaths: string[] = [
-         'path/in/repo/test.txt',
-         'path/deeper/in/repo/test.txt'
-      ]
-      const expected: string[] = [
-         '/tmp/path/in/repo/test.txt',
-         '/tmp/path/deeper/in/repo/test.txt'
-      ]
-      const newFilePaths =
-         manifestUpdateUtils.moveFilesToTmpDir(originalFilePaths)
-      expect(newFilePaths).toEqual(expected)
-   })
-})

src/utilities/manifestUpdateUtils.ts

@@ -3,7 +3,7 @@ import * as fs from 'fs'
 import * as yaml from 'js-yaml'
 import * as path from 'path'
 import * as fileHelper from './fileUtils'
-import {moveFileToTmpDir} from './fileUtils'
+import {getTempDirectory} from './fileUtils'
 import {
    InputObjectKindNotDefinedError,
    InputObjectMetadataNotDefinedError,
@@ -26,14 +26,10 @@ export function updateManifestFiles(manifestFilePaths: string[]) {
       throw new Error('Manifest files not provided')
    }
 
-   // move original set of input files to tmp dir
-   const manifestFilesInTempDir = moveFilesToTmpDir(manifestFilePaths)
-
    // update container images
    const containers: string[] = core.getInput('images').split('\n')
-
    const manifestFiles = updateContainerImagesInManifestFiles(
-      manifestFilesInTempDir,
+      manifestFilePaths,
       containers
    )
 
@@ -45,12 +41,6 @@ export function updateManifestFiles(manifestFilePaths: string[]) {
    return updateImagePullSecretsInManifestFiles(manifestFiles, imagePullSecrets)
 }
 
-export function moveFilesToTmpDir(filepaths: string[]): string[] {
-   return filepaths.map((filename) => {
-      return moveFileToTmpDir(filename)
-   })
-}
-
 export function UnsetClusterSpecificDetails(resource: any) {
    if (!resource) {
       return
@@ -80,9 +70,12 @@ function updateContainerImagesInManifestFiles(
 ): string[] {
    if (filePaths?.length <= 0) return filePaths
 
+   const newFilePaths = []
+
    // update container images
    filePaths.forEach((filePath: string) => {
       let contents = fs.readFileSync(filePath).toString()
+
       containers.forEach((container: string) => {
          let [imageName] = container.split(':')
          if (imageName.indexOf('@') > 0) {
@@ -98,10 +91,13 @@ function updateContainerImagesInManifestFiles(
       })
 
       // write updated files
-      fs.writeFileSync(path.join(filePath), contents)
+      const tempDirectory = getTempDirectory()
+      const fileName = path.join(tempDirectory, path.basename(filePath))
+      fs.writeFileSync(path.join(fileName), contents)
+      newFilePaths.push(fileName)
    })
 
-   return filePaths
+   return newFilePaths
 }
 
 /*

test/integration/k8s-deploy-test.py

@@ -232,7 +232,8 @@ def main():
         getAllObjectsCmd = azPrefix + 'kubectl get '+kind+' -n '+namespace
         if not azPrefix == "":
             getAllObjectsCmd = azPrefix + "'{getAllObjectsCmd}'" # add extra set of quotes
-        foundObjects = os.popen(getAllObjectsCmd).read()
+        cmd =  + "'" + cmd + "'"
+        foundObjects = os.popen().read()
         suffix = f"resources of type {kind}: {foundObjects}"
         sys.exit(msg + " " + suffix)
 

test/integration/manifests/manifest_test_dir/test.yml

@@ -1,33 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-   name: nginx-deployment3
-   labels:
-      app: nginx3
-spec:
-   replicas: 1
-   selector:
-      matchLabels:
-         app: nginx3
-   template:
-      metadata:
-         labels:
-            app: nginx3
-      spec:
-         containers:
-            - name: nginx
-              image: nginx
-              ports:
-                 - containerPort: 80
----
-apiVersion: v1
-kind: Service
-metadata:
-   name: nginx-service3
-spec:
-   selector:
-      app: nginx3
-   ports:
-      - protocol: TCP
-        port: 80
-        targetPort: 80