ENH: specify required field when retrieving available gcp regions

src/_nebari/provider/cloud/google_cloud.py

@@ -2,7 +2,7 @@
 import json
 import os
 import subprocess
-from typing import Dict, List
+from typing import Dict, List, Set
 
 from _nebari import constants
 from _nebari.provider.cloud.commons import filter_by_highest_supported_k8s_version
@@ -30,14 +30,14 @@ def projects() -> Dict[str, str]:
 
 
 @functools.lru_cache()
-def regions(project: str) -> Dict[str, str]:
-    """Return a dict of available regions."""
+def regions() -> Set[str]:
+    """Return a set of available regions."""
     check_credentials()
     output = subprocess.check_output(
-        ["gcloud", "compute", "regions", "list", "--project", project, "--format=json"]
+        ["gcloud", "compute", "regions", "list", "--format=json(name)"]
     )
-    data = json.loads(output.decode("utf-8"))
-    return {_["description"]: _["name"] for _ in data}
+    data = json.loads(output)
+    return {_["name"] for _ in data}
 
 
 @functools.lru_cache()
@@ -257,9 +257,9 @@ def gcp_cleanup(config: schema.Main):
 ### PYDANTIC VALIDATORS ###
 
 
-def validate_region(project_id: str, region: str) -> str:
+def validate_region(region: str) -> str:
     """Validate the GCP region is valid."""
-    available_regions = regions(project_id)
+    available_regions = regions()
     if region not in available_regions:
         raise ValueError(
             f"Region {region} is not one of available regions {available_regions}"

src/_nebari/stages/infrastructure/__init__.py

@@ -353,7 +353,7 @@ def validate_all(cls, values):
             raise ValueError("The `google_cloud_platform.region` field is required.")
 
         # validate region
-        google_cloud.validate_region(project_id, region)
+        google_cloud.validate_region(region)
 
         # validate kubernetes version
         kubernetes_version = values.get("kubernetes_version")

src/_nebari/subcommands/init.py

@@ -448,7 +448,7 @@ def check_cloud_provider_region(region: str, cloud_provider: str) -> str:
         if not region:
             region = GCP_DEFAULT_REGION
             rich.print(DEFAULT_REGION_MSG.format(region=region))
-        if region not in google_cloud.regions(os.environ["PROJECT_ID"]):
+        if region not in google_cloud.regions():
             raise ValueError(
                 f"Invalid region `{region}`. Please refer to the GCP docs for a list of valid regions: {GCP_REGIONS}"
             )