fix(eks): reuse chart name as chart dir for helmchart deployment from OCI repository (#23392)

Fixes #22341

It migrates assigning chart_dir from release name to chart name, to be consistent with helm-pull's target directory. 

I also added to integration test yet another chart deployment of a different chart. Why it's separate? Because of the way of how testing flow is working - if i understand it correctly it provisions previous snapshot, and finally after that provisions a new version of assets and test code **on top of existing**. Thanks to that i'm unable to cover my case in existing chart deployment, because when i change release name it conflicts with previously deployed (during old snapshot provisioning) chart (`UPDATE_FAILED (The following resource(s) failed to update: [Clustercharttestocichart9C188967]. ): Received response status [FAILED] from custom resource. Message returned: Error: b'Release "s3-chart-release" does not exist. Installing it now.\nError: rendered manifests contain a resource that already exists. Unable to continue with install: ServiceAccount "ack-s3-controller" in namespace "ack-system" exists and cannot be imported into the current release: invalid ownership metadata; annotation validation error: key "meta.helm.sh/release-name" must equal "s3-chart-release": current value is "s3-chart"\n'`).

Actually i successfully ran the modified integration test, but i didn't commit changes caused by yarn integ command, because i don't know which i have to commit.

----

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Author: psemeniuk

packages/@aws-cdk/aws-eks/lib/kubectl-handler/helm/__init__.py

@@ -82,7 +82,7 @@ def helm_handler(event, context):
 
         if repository is not None and repository.startswith('oci://'):
             tmpdir = tempfile.TemporaryDirectory()
-            chart_dir = get_chart_from_oci(tmpdir.name, release, repository, version)
+            chart_dir = get_chart_from_oci(tmpdir.name, repository, version)
             chart = chart_dir
 
         helm('upgrade', release, chart, repository, values_file, namespace, version, wait, timeout, create_namespace)
@@ -123,7 +123,7 @@ def get_oci_cmd(repository, version):
     return cmnd
 
 
-def get_chart_from_oci(tmpdir, release, repository = None, version = None):
+def get_chart_from_oci(tmpdir, repository = None, version = None):
 
     cmnd = get_oci_cmd(repository, version)
 
@@ -135,7 +135,9 @@ def get_chart_from_oci(tmpdir, release, repository = None, version = None):
             output = subprocess.check_output(cmnd, stderr=subprocess.STDOUT, cwd=tmpdir, shell=True)
             logger.info(output)
 
-            return os.path.join(tmpdir, release)
+            # effectively returns "$tmpDir/$lastPartOfOCIUrl", because this is how helm pull saves OCI artifact. 
+            # Eg. if we have oci://9999999999.dkr.ecr.us-east-1.amazonaws.com/foo/bar/pet-service repository, helm saves artifact under $tmpDir/pet-service
+            return os.path.join(tmpdir, repository.rpartition('/')[-1])
         except subprocess.CalledProcessError as exc:
             output = exc.output
             if b'Broken pipe' in output:

packages/@aws-cdk/aws-eks/test/integ.eks-helm-asset.js.snapshot/asset.1f175bea1cef6137d882d0090f49e27e44bbb46a678a86fd5d6fb29ade070a33/apply/__init__.py renamed to packages/@aws-cdk/aws-eks/test/integ.eks-helm-asset.js.snapshot/asset.563343f1aee007876e917a1bf685464df7e56190033d5ae5b9fd14d498e9c5ee/apply/__init__.py

@@ -82,7 +82,7 @@ def helm_handler(event, context):
 
         if repository is not None and repository.startswith('oci://'):
             tmpdir = tempfile.TemporaryDirectory()
-            chart_dir = get_chart_from_oci(tmpdir.name, release, repository, version)
+            chart_dir = get_chart_from_oci(tmpdir.name, repository, version)
             chart = chart_dir
 
         helm('upgrade', release, chart, repository, values_file, namespace, version, wait, timeout, create_namespace)
@@ -123,7 +123,7 @@ def get_oci_cmd(repository, version):
     return cmnd
 
 
-def get_chart_from_oci(tmpdir, release, repository = None, version = None):
+def get_chart_from_oci(tmpdir, repository = None, version = None):
 
     cmnd = get_oci_cmd(repository, version)
 
@@ -135,7 +135,7 @@ def get_chart_from_oci(tmpdir, release, repository = None, version = None):
             output = subprocess.check_output(cmnd, stderr=subprocess.STDOUT, cwd=tmpdir, shell=True)
             logger.info(output)
 
-            return os.path.join(tmpdir, release)
+            return os.path.join(tmpdir, repository.rpartition('/')[-1])
         except subprocess.CalledProcessError as exc:
             output = exc.output
             if b'Broken pipe' in output: