cherry pick #2715 to release-1.0 (#2728)

Signed-off-by: ti-srebot <ti-srebot@pingcap.com> Co-authored-by: weekface <weekface@gmail.com>
pingcap · Jun 16, 2020 · 7d826ec · 7d826ec
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diff --git a/charts/tidb-cluster/templates/monitor-deployment.yaml b/charts/tidb-cluster/templates/monitor-deployment.yaml
@@ -71,7 +71,11 @@ spec:
         - name: PROM_PERSISTENT_DIR
           value: /data
         - name: TIDB_VERSION
+      {{- if .Values.monitor.prometheus.alertManagerRulesVersion }}
+          value: tidb:{{ .Values.monitor.prometheus.alertManagerRulesVersion }}
+      {{- else }}
           value: {{ .Values.tidb.image }}
+      {{- end }}
         - name: GF_K8S_PROMETHEUS_URL
           value: {{ .Values.monitor.initializer.config.K8S_PROMETHEUS_URL }}
         - name: GF_TIDB_PROMETHEUS_URL

diff --git a/charts/tidb-cluster/values.yaml b/charts/tidb-cluster/values.yaml
@@ -453,6 +453,11 @@ monitor:
       type: NodePort
     reserveDays: 12
     # alertmanagerURL: ""
+
+    # alertManagerRulesVersion is the version of the tidb cluster that used for alert rules.
+    # default to current tidb cluster version, for example: v3.0.15
+    #
+    # alertManagerRulesVersion: ""
   nodeSelector: {}
     # kind: monitor
     # zone: cn-bj1-01,cn-bj1-02