From f6190e200a0bf37a2317e9c587c22cf8518315db Mon Sep 17 00:00:00 2001
From: Joao Marcal <jmarcal@redhat.com>
Date: Wed, 23 Mar 2022 16:51:15 +0000
Subject: [PATCH] Adds readinessProbe and livenessProbe to prometheus-adapter
jsonnet Problem: Currently the prometheus-adapter pods are restarted at the
same time even though the deployment is configured with strategy
RollingUpdate. This happens because the kubelet does not know when the
prometheus-adapter pods are ready to start receiving requests.
Solution: Add both readinessProbe and livenessProbe to the
prometheus-adapter, this way the kubelet will know when either the pod
stoped working and should be restarted or simply when it ready to start
receiving requests.
Issue: https://bugzilla.redhat.com/show_bug.cgi?id=2048333
---
.../components/prometheus-adapter.libsonnet | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet b/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet
index 1ac3aced..4a4d6850 100644
--- a/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet
+++ b/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet
@@ -220,6 +220,26 @@ function(params) {
'--tls-cipher-suites=' + std.join(',', pa._config.tlsCipherSuites),
],
resources: pa._config.resources,
+ readinessProbe: {
+ httpGet: {
+ path: '/readyz',
+ port: 'https',
+ scheme: 'HTTPS',
+ },
+ initialDelaySeconds: 30,
+ periodSeconds: 5,
+ failureThreshold: 5,
+ },
+ livenessProbe: {
+ httpGet: {
+ path: '/livez',
+ port: 'https',
+ scheme: 'HTTPS',
+ },
+ initialDelaySeconds: 30,
+ periodSeconds: 5,
+ failureThreshold: 5,
+ },
ports: [{ containerPort: 6443 }],
volumeMounts: [
{ name: 'tmpfs', mountPath: '/tmp', readOnly: false },
--
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