Prometheus metrics for Dovecot

templates/dovecot/dovecot.conf.j2

@@ -136,6 +136,7 @@ service quota-status {
   client_limit = 1
 }
 
+# Metrics
 service stats {
   unix_listener stats-reader {
     user = vmail
@@ -149,6 +150,31 @@ service stats {
     # 0666 instead of 0660, so postfixadmin can call doveadm pw without errors
     mode = 0666
   }
+
+  inet_listener http {
+    port = 9900
+  }
+}
+
+metric auths {
+  filter = event=auth_request_finished
+}
+metric auth_successes {
+  filter = event=auth_request_finished AND success=yes
+}
+
+metric imap_commands {
+  filter = event=imap_command_finished
+  group_by = cmd_name tagged_reply_state duration:exponential:1:9:10
+}
+
+metric sieve_actions {
+  filter = event=sieve_action_finished
+  group_by = action_name
+}
+
+metric mail_deliveries {
+  filter = event=mail_delivery_finished
 }
 
 # Postfix delivers incoming mails via lda (transport "dovecot")