google_cloud_run_v2_service : container-dependencies incorrect when container name is omitted

[romaninsh]

With the following setup:

resource "google_cloud_run_v2_service" "app" {
  name     = "frontend"
  location = "europe-west1"

  template {
    containers {
      image = var.image
      #name="main"
      depends_on = ["redis"]
    }
    containers {
        name  = "redis"
        image = "redis:latest"
    }
  }
}

The name on the main container is commented out. GCP assigns it name "frontend-1" automatically. The problem is with the dependency.

gcloud run services describe frontend

Would output the following annotation:

  "spec": {
    "template": {
      "metadata": {
        "annotations": {
          "run.googleapis.com/container-dependencies": "{\"\":[\"redis\"]}",
...

GCP considers name "" above invalid if updated.

ERROR: (gcloud.run.services.update) spec.template.metadata.annotations[run.googleapis.com/container-dependencies]: Invalid container name ''. Must conform to RFC 1123: only lowercase letters, digits, hyphens, and periods are allowed, must begin and end with a letter or digit, and be less than 64 characters

When set manually through UI, the container-dependencies are:

          "run.googleapis.com/container-dependencies": "{\"frontend-1\":[\"redis\"]}",

Terraform Version & Provider Version(s)

Terraform v1.10.3
on darwin_arm64

• provider registry.terraform.io/hashicorp/google v6.15.0

Affected Resource(s)

google_cloud_run_v2_service

Terraform Configuration

Debug Output

No response

Expected Behavior

          "run.googleapis.com/container-dependencies": "{\"frontend-1\":[\"redis\"]}",

Actual Behavior

          "run.googleapis.com/container-dependencies": "{\"\":[\"redis\"]}",

Steps to reproduce

1. terraform apply

Important Factoids

No response

References

No response

[ggtisc]

Hi @romaninsh

Since we don't have access to your own redis code and configuration we can't go beyond, but I tried to replicate this issue with a public redis image with the following code and don't have any errors:

resource "google_cloud_run_v2_service" "clourdrun_service_v2_21035" {
  name                = "clourdrun-service-v2-21035"
  location            = "us-central1"
  deletion_protection = false

  template {
    containers { # container without name
      image = "redis:latest" 
    }
    containers {
        name  = "something"
        image = "redis:latest"

        ports {
          container_port = 8080
        }
    }
  }
}

I suggest you check your redis image configuration and try again