Georgia Zoi Leng

fix: firewall rules for autopilot clusters are ineffective. add cluster_network_tag to autopilot cluster network_tags if firewalls are toggled on

24

- close #1230 - add [cluster_network_tag](https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/blob/master/modules/beta-autopilot-private-cluster/main.tf#L107) to autopilot clusters' [node_pool_auto_config.network_tags](https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/blob/master/modules/beta-autopilot-private-cluster/cluster.tf#L97) if [any of](https://github.com/GorginZ/terraform-google-kubernetes-engine/blob/gke-autopilot-network-tags/autogen/main/cluster.tf.tmpl#LL230C2-L230C2) : ```add_cluster_firewall_rules```, ```add_master_webhook_firewall_rules``` or ```add_shadow_firewall_rules``` are toggled true. - assign network tags [if ](https://github.com/GorginZ/terraform-google-kubernetes-engine/blob/gke-autopilot-network-tags/autogen/main/cluster.tf.tmpl#L227) network_tags are provided...

Fix/issue 685 persisting silences in alertmanager

6

- partially fixes/workaround for #685 for users who self-install manifests (which is not supported installation of GMP) - allow for provisioning of PVC for alertManager statefulset to persist silence status...