commit 7f09e76dc0decb9019915d37d69bc4c571a8cae9
author Sylvain Desbureaux <sylvain.desbureaux@orange.com> Wed May 05 09:20:18 2021 +0200
committer Sylvain Desbureaux <sylvain.desbureaux@orange.com> Sat May 08 21:45:08 2021 +0000
tree bb9e3dfc7eafc191c9f5abbbb3da11140718a13e
parent ed3e171daef2e0aba14e0d52d8c436d48e2f4f54

[COMMON][MARIADB] Use Startup probes

Instead of long initial delay on readiness and liveness probes, use
startup probes and be more aggressive on readiness and liveness.

Issue-ID: OOM-2740
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I86015a4a0c4ab313929c5bd103dedced1df88ec3

kubernetes/common/mariadb-galera/templates/statefulset.yaml

diff --git a/kubernetes/common/mariadb-galera/templates/statefulset.yaml b/kubernetes/common/mariadb-galera/templates/statefulset.yaml
index bde971f..7b0d90a 100644
--- a/kubernetes/common/mariadb-galera/templates/statefulset.yaml
+++ b/kubernetes/common/mariadb-galera/templates/statefulset.yaml
@@ -129,7 +129,7 @@
           livenessProbe:
             exec:
               command:
-                - bash
+                - sh
                 - -ec
                 - |
                   exec mysqladmin status -u$MARIADB_ROOT_USER -p$MARIADB_ROOT_PASSWORD
@@ -143,7 +143,7 @@
           readinessProbe:
             exec:
               command:
-                - bash
+                - sh
                 - -ec
                 - |
                   exec mysqladmin status -u$MARIADB_ROOT_USER -p$MARIADB_ROOT_PASSWORD
@@ -153,6 +153,20 @@
             successThreshold: {{ .Values.readinessProbe.successThreshold }}
             failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
           {{- end }}
+          {{- if .Values.startupProbe.enabled }}
+          startupProbe:
+            exec:
+              command:
+                - sh
+                - -ec
+                - |
+                  exec mysqladmin status -u$MARIADB_ROOT_USER -p$MARIADB_ROOT_PASSWORD
+            initialDelaySeconds: {{ .Values.startupProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.startupProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.startupProbe.timeoutSeconds }}
+            successThreshold: {{ .Values.startupProbe.successThreshold }}
+            failureThreshold: {{ .Values.startupProbe.failureThreshold }}
+          {{- end }}
           resources: {{ include "common.resources" . | nindent 12 }}
           volumeMounts:
             - name: previous-boot