add config for audit logging, remove Audit() from Logger interface

Co-authored-by: Joshua Casey <joshuatcasey@gmail.com>

deploy/concierge/deployment.yaml

@@ -103,6 +103,8 @@ data:
     tls:
       onedottwo:
         allowedCiphers: (@= str(data.values.allowed_ciphers_for_tls_onedottwo) @)
+    audit:
+      logUsernamesAndGroups: (@= data.values.audit.log_usernames_and_groups @)
 ---
 #@ if data.values.image_pull_dockerconfigjson and data.values.image_pull_dockerconfigjson != "":
 apiVersion: v1

deploy/concierge/values.yaml

@@ -231,3 +231,15 @@ no_proxy: "$(KUBERNETES_SERVICE_HOST),169.254.169.254,127.0.0.1,localhost,.svc,.
 #! An empty array is perfectly valid, as is any array of strings.
 allowed_ciphers_for_tls_onedottwo:
 - ""
+
+#@schema/title "Audit logging configuration"
+#@schema/desc "Customize the content of audit log events."
+audit:
+
+  #@schema/title "Log usernames and groups"
+  #@ log_usernames_and_groups_desc = "Enables or disables printing usernames and group names in audit logs. Options are 'enabled' or 'disabled'. \
+  #@ If enabled, usernames are group names may be printed in audit log events. \
+  #@ If disabled, usernames and group names will be redacted from audit logs because they might contain personally identifiable information."
+  #@schema/desc log_usernames_and_groups_desc
+  #@schema/validation one_of=["enabled", "disabled"]
+  log_usernames_and_groups: disabled

deploy/supervisor/helpers.lib.yaml

@@ -57,6 +57,10 @@ _: #@ template.replace(data.values.custom_labels)
 #@       "onedottwo": {
 #@         "allowedCiphers": data.values.allowed_ciphers_for_tls_onedottwo
 #@       }
+#@     },
+#@     "audit": {
+#@       "logUsernamesAndGroups": data.values.audit.log_usernames_and_groups,
+#@       "logInternalPaths": data.values.audit.log_internal_paths
 #@     }
 #@   }
 #@   if data.values.log_level:

deploy/supervisor/values.yaml

@@ -220,3 +220,23 @@ endpoints: { }
 #! An empty array is perfectly valid, as is any array of strings.
 allowed_ciphers_for_tls_onedottwo:
 - ""
+
+#@schema/title "Audit logging configuration"
+#@schema/desc "Customize the content of audit log events."
+audit:
+
+  #@schema/title "Log usernames and groups"
+  #@ log_usernames_and_groups_desc = "Enables or disables printing usernames and group names in audit logs. Options are 'enabled' or 'disabled'. \
+  #@ If enabled, usernames are group names may be printed in audit log events. \
+  #@ If disabled, usernames and group names will be redacted from audit logs because they might contain personally identifiable information."
+  #@schema/desc log_usernames_and_groups_desc
+  #@schema/validation one_of=["enabled", "disabled"]
+  log_usernames_and_groups: disabled
+
+  #@schema/title "Log HTTPS requests for internal paths"
+  #@ log_internal_paths = "Enables or disables request logging for internal paths in audit logs. Options are 'enabled' or 'disabled'. \
+  #@ If enabled, requests to certain paths that are typically only used internal to the cluster (e.g. /healthz) will be enabled, which can be very verbose. \
+  #@ If disabled, requests to those paths will not be audit logged."
+  #@schema/desc log_internal_paths
+  #@schema/validation one_of=["enabled", "disabled"]
+  log_internal_paths: disabled