From 1cd6ac5b4c5358be4fbdfd0f5bffa194274e94d7 Mon Sep 17 00:00:00 2001
From: Andrew Bonney <andrew.bonney@bbc.co.uk>
Date: Fri, 13 Jan 2023 09:25:11 +0000
Subject: [PATCH] Add configuration option for native Prometheus exporter
Zookeeper supports Prometheus metrics as documented in
https://zookeeper.apache.org/doc/r3.8.0/zookeeperMonitor.html#Prometheus
This patch adds configuration options to enable it and change
the default port.
Change-Id: I7017bb4c2eea855464989bf10d7984e130cad4b3
---
defaults/main.yml | 3 +++
templates/zoo.cfg.j2 | 5 +++++
2 files changed, 8 insertions(+)
diff --git a/defaults/main.yml b/defaults/main.yml
index 1aa8c43..4f101f4 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -160,3 +160,6 @@ zookeeper_commands_whitelist:
- ruok
- isro
- envi
+
+zookeeper_prometheus_enable: False
+zookeeper_prometheus_port: 7000
diff --git a/templates/zoo.cfg.j2 b/templates/zoo.cfg.j2
index 9151d3a..779deb5 100644
--- a/templates/zoo.cfg.j2
+++ b/templates/zoo.cfg.j2
@@ -56,3 +56,8 @@ ssl.quorum.enabledProtocols={{ zookeeper_ssl_protocols | join(',') }}
ssl.quorum.trustStore.type=PEM
ssl.quorum.clientAuth={{ zookeeper_ssl_quorum_client_auth }}
{% endif %}
+
+{% if zookeeper_prometheus_enable | bool %}
+metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
+metricsProvider.httpPort={{ zookeeper_prometheus_port }}
+{% endif %}