fix: bump min cdk version to 2.28.0 to use node 14 (backport #300) (#312

)

This is an automatic backport of pull request #300 done by [Mergify](https://mergify.com).
Cherry-pick of 511e534 has failed:
```
On branch mergify/bp/kubectl-v26/main/pr-300
Your branch is up to date with 'origin/kubectl-v26/main'.

You are currently cherry-picking commit 511e534.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .gitattributes
	modified:   .gitignore
	new file:   .gitpod.yml
	modified:   .projen/deps.json
	modified:   .projen/files.json
	modified:   .projenrc.ts
	modified:   CONTRIBUTING.md
	modified:   package.json
	modified:   yarn.lock

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   API.md
	both modified:   test/kubectl-layer.integ.snapshot/lambda-layer-kubectl-integ-stack.assets.json
	both modified:   test/kubectl-layer.integ.snapshot/lambda-layer-kubectl-integ-stack.template.json

```


To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

---


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</details>

.projenrc.ts

@@ -1,4 +1,4 @@
-import { awscdk } from 'projen';
+import { awscdk, Gitpod, DevEnvironmentDockerImage } from 'projen';
 import { NpmAccess } from 'projen/lib/javascript';
 import { WorkflowNoDockerPatch } from './projenrc/workflow-no-docker-patch';
 
@@ -11,7 +11,7 @@ const project = new awscdk.AwsCdkConstructLibrary({
   projenrcTs: true,
   author: 'Amazon Web Services',
   authorAddress: 'aws-cdk-dev@amazon.com',
-  cdkVersion: '2.0.0',
+  cdkVersion: '2.28.0',
   name: `@aws-cdk/lambda-layer-kubectl-v${SPEC_VERSION}`,
   description: `A Lambda Layer that contains kubectl v1.${SPEC_VERSION}`,
   repositoryUrl: 'https://github.com/cdklabs/awscdk-asset-kubectl.git',
@@ -73,4 +73,14 @@ new WorkflowNoDockerPatch(project, { workflow: 'release', workflowName: `release
 
 project.preCompileTask.exec('layer/build.sh');
 
+// For gitpod users, use jsii/superchain as the dockerImage for the workspace.
+const gitpod = new Gitpod(project, {
+  dockerImage: DevEnvironmentDockerImage.fromImage('public.ecr.aws/jsii/superchain:1-buster-slim-node18'),
+});
+
+gitpod.addVscodeExtensions(
+  'dbaeumer.vscode-eslint',
+  'AmazonWebServices.aws-toolkit-vscode',
+);
+
 project.synth();

CONTRIBUTING.md

@@ -59,8 +59,8 @@ in the corresponding go binding repository, [`cdklabs/awscdk-kubectl-go`](https:
     For example, if `KUBECTL_VERSION` is v1.25.0, then `SPEC_VERSION` should be 25.
     - for an example of code changes done for kubectl v1.22.0, see this [PR](https://github.com/cdklabs/awscdk-asset-kubectl/pull/7).
 5. Run `npx projen` to update the github workflows.
-6. Run `yarn:integ:kubectl-asset:deploy` to ensure that the new versions in the Dockerfile can be successfully downloaded.
-Run `yarn:integ:kubectl-asset:snapshot` if `deploy` succeeds and the snapshot does not get updated.
+6. Run `npx projen integ:kubectl-layer:deploy` to ensure that the new versions in the Dockerfile can be successfully downloaded.
+Run `npx projen integ:kubectl-layer:snapshot` if `deploy` succeeds and the snapshot does not get updated.
 7. Run `yarn build` to ensure everything builds correctly.
 8. Commit to your fork and submit a pull request to the repository, _ensuring that you are targeting the correct `kubectl-vY/main` branch_.
 9. A maintainer will review your contribution from there!

test/kubectl-layer.integ.snapshot/lambda-layer-kubectl-integ-stack.assets.json

@@ -1,5 +1,5 @@
 {
-  "version": "15.0.0",
+  "version": "20.0.0",
   "files": {
     "2873922b2920bdb6f113a1deaf12a0572a881113a1d89d7b328db438adead07f": {
       "source": {
@@ -27,28 +27,28 @@
         }
       }
     },
-    "c691172cdeefa2c91b5a2907f9d81118e47597634943344795f1a844192dd49c": {
+    "eaeb69bc290b516fe3b049f89d6118b22249df682fbabf56af300cf345198574": {
       "source": {
-        "path": "asset.c691172cdeefa2c91b5a2907f9d81118e47597634943344795f1a844192dd49c",
+        "path": "asset.eaeb69bc290b516fe3b049f89d6118b22249df682fbabf56af300cf345198574",
         "packaging": "zip"
       },
       "destinations": {
         "current_account-current_region": {
           "bucketName": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}",
-          "objectKey": "c691172cdeefa2c91b5a2907f9d81118e47597634943344795f1a844192dd49c.zip",
+          "objectKey": "eaeb69bc290b516fe3b049f89d6118b22249df682fbabf56af300cf345198574.zip",
           "assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-file-publishing-role-${AWS::AccountId}-${AWS::Region}"
         }
       }
     },
-    "928de8aafe54b4eda6c867108540aa9f1a784e5f6509cb48d5f78f582c1568dd": {
+    "0b69bec8c78e63abd08d634a0f862061ca7bdffb79e064ee777250c67bcdd9d0": {
       "source": {
         "path": "lambda-layer-kubectl-integ-stack.template.json",
         "packaging": "file"
       },
       "destinations": {
         "current_account-current_region": {
           "bucketName": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}",
-          "objectKey": "928de8aafe54b4eda6c867108540aa9f1a784e5f6509cb48d5f78f582c1568dd.json",
+          "objectKey": "0b69bec8c78e63abd08d634a0f862061ca7bdffb79e064ee777250c67bcdd9d0.json",
           "assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-file-publishing-role-${AWS::AccountId}-${AWS::Region}"
         }
       }