Merge pull request #8380 from rphillips/fix_read_write_cache_azure_masters

OCPBUGS-33470: use read/write cache on azure masters

Author: openshift-merge-bot[bot]

data/data/azure/cluster/master/master.tf

@@ -114,7 +114,7 @@ resource "azurerm_linux_virtual_machine" "master" {
 
   os_disk {
     name                   = "${var.cluster_id}-master-${count.index}_OSDisk" # os disk name needs to match cluster-api convention
-    caching                = "ReadOnly"
+    caching                = "ReadWrite"
     storage_account_type   = var.os_volume_type
     disk_size_gb           = var.os_volume_size
     disk_encryption_set_id = var.disk_encryption_set_id