Commits on Nov 16, 2022

1. Add a logging_variant field to GKE node pools and to node pool defa… …

   …ults for GKE clusters. (hashicorp#6744)
   
   This PR implements the feature request from [Add GKE logging variant field for increasing log agent throughput hashicorp#12667](hashicorp#12667).
   
   By adding a logging_variant field within the node_pool_defaults, GKE users will be able to select a cluster-wide default value for the logging agent of the node pools in a cluster. For example, by specifying
   ```terraform
   resource "google_container_cluster" "with_logging_variant_node_pool_default" {
     name               = "example-cluster"
     location           = "us-central1-f"
     initial_node_count = 1
   
     node_pool_defaults {
       node_config_defaults {
         logging_variant = "MAX_THROUGHPUT"
       }
     }
   }
   ```
   every newly created node pool in the cluster will have the max throughput logging agent unless this is explicitly overridden at the node pool level (see the [GKE docs](https://cloud.google.com/stackdriver/docs/solutions/gke/managing-logs#high_throughput_for_all_nodes_in_a_cluster) for more information).
   
   GKE users will also be able to select a logging variant at the node pool level. For example, by specifying
   ```terraform
   resource "google_container_cluster" "with_logging_variant_node_pool_default" {
     name               = "example-cluster"
     location           = "us-central1-f"
     initial_node_count = 1
   
     node_pool_defaults {
       node_config_defaults {
         logging_variant = "DEFAULT"
       }
     }
   }
   resource "google_container_node_pool" "with_high_throughput_logging_variant" {
     name    = "example-node-pool-0"
     cluster = google_container_cluster.with_logging_variant_node_pool_default.name
   }
   resource "google_container_node_pool" "with_high_throughput_logging_variant" {
     name    = "example-node-pool-1"
     cluster = google_container_cluster.with_logging_variant_node_pool_default.name
     node_config {
       logging_variant = "MAX_THROUGHPUT"
     }
   }
   ```
   example-node-pool-0 (as well as the default node pool) will have the default logging agent (see the [GKE docs](https://cloud.google.com/stackdriver/docs/solutions/gke/managing-logs#high_throughput_for_all_nodes_in_a_cluster) for more information), but example-node-pool-1 will have the max throughput agent.
   
   Signed-off-by: Modular Magician <magic-modules@google.com>

   

   modular-magician committed Nov 16, 2022
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