support of updating node_image_config and image_type` at the same time

[cwangVT]

Release Note Template for Downstream PRs (will be copied)

See Write release notes for guidance.

container: added the support of updating `node_image_config  and `image_type` at the same time 

[github-actions]

Googlers: For automatic test runs see go/terraform-auto-test-runs.

@NickElliot, a repository maintainer, has been assigned to review your changes. If you have not received review feedback within 2 business days, please leave a comment on this PR asking them to take a look.

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit f423219:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	3 files changed, 48 insertions(+), 5 deletions(-)
google-beta provider	View Diff	3 files changed, 48 insertions(+), 5 deletions(-)

Missing test report

Your PR includes resource fields which are not covered by any test.

Resource: google_container_cluster (577 total tests)
Please add an acceptance test which includes these fields. The test should include the following:

resource "google_container_cluster" "primary" {
  node_pool {
    node_config {
      node_image_config {
        image         = # value needed
        image_project = # value needed
      }
    }
  }
}

Test report

Analytics

Total Tests	Passed	Skipped	Affected
304	287	14	3

Affected Service Packages

• container

Learn how VCR tests work

---

Step 1: Replaying Mode

Action taken

Found 3 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit.

Click here to see the affected tests

• TestAccContainerCluster_regionalWithNodePool
• TestAccContainerNodePool_withHostMaintenancePolicy
• TestAccContainerNodePool_withNodeImageConfig

View the replaying VCR build log

---

Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
✅ Log	✅	TestAccContainerNodePool_withNodeImageConfig
❌ Error · Log	-	TestAccContainerCluster_regionalWithNodePool
❌ Error · Log	-	TestAccContainerNodePool_withHostMaintenancePolicy

Caution

Issues requiring attention before PR completion

🔴 Initial Recording Failed: Some tests failed during the recording step. See the table above for details.

Please address these issues to complete your PR. If you believe these detections are incorrect or unrelated to your change, please raise the concern with your reviewer.

View the recording VCR build log or the debug logs folder for detailed results.

@cwangVT, @NickElliot VCR tests complete for f423219!