patch generate to quote params when missing

cli/azd/pkg/apphost/generate.go

@@ -1816,7 +1816,13 @@ func (b *infraGenerator) buildDeployBlock(
 				}
 			}
 		}
-
+		// make sure resolved value is quoted.
+		// We can't ask EvalString() to quote strings b/c it depends on evalBindingRef() which can return complex
+		// expressions where each part might be quoted or not.
+		// Instead, before setting the deploy parameter, we just verify that it's quoted.
+		if !strings.HasPrefix(resolvedValue, "'") {
+			resolvedValue = "'" + resolvedValue + "'"
+		}
 		manifestCtx.DeployParams[k] = resolvedValue
 	}
 

cli/azd/pkg/apphost/testdata/TestAspireProjectV1Generation-cache.snap

@@ -1,7 +1,10 @@
 using './cache.module.bicep'
 
 param cache_volumes_0_storage = '{{ .Env.SERVICE_CACHE_VOLUME_AZURECONTAINERAPPSAPPHOST8F235654EDCACHEDATA_NAME }}'
+param complex = 'tcp:cache/foo'
+param host = 'cache'
 param outputs_azure_container_apps_environment_id = '{{ .Env.AZURE_CONTAINER_APPS_ENVIRONMENT_ID }}'
 param outputs_azure_container_registry_managed_identity_id = '{{ .Env.AZURE_CONTAINER_REGISTRY_MANAGED_IDENTITY_ID }}'
 param outputs_managed_identity_client_id = '{{ .Env.MANAGED_IDENTITY_CLIENT_ID }}'
+param protocol = 'tcp'
 

cli/azd/pkg/apphost/testdata/aspire-projectv1.json

@@ -22,7 +22,10 @@
           "cache_volumes_0_storage": "{cache.volumes.0.storage}",
           "outputs_azure_container_registry_managed_identity_id": "{.outputs.AZURE_CONTAINER_REGISTRY_MANAGED_IDENTITY_ID}",
           "outputs_managed_identity_client_id": "{.outputs.MANAGED_IDENTITY_CLIENT_ID}",
-          "outputs_azure_container_apps_environment_id": "{.outputs.AZURE_CONTAINER_APPS_ENVIRONMENT_ID}"
+          "outputs_azure_container_apps_environment_id": "{.outputs.AZURE_CONTAINER_APPS_ENVIRONMENT_ID}",
+          "host": "{cache.bindings.tcp.host}",
+          "protocol": "{cache.bindings.tcp.protocol}",
+          "complex": "{cache.bindings.tcp.protocol}:{cache.bindings.tcp.host}/foo"
         }
       },
       "args": [