feat(libvirt-exporter): add readiness and liveness probes to sidecar container

Change-Id: I346e16406b27addb715c18e710e9ee721c056010
Signed-off-by: Saeed Padari <sam137115@gmail.com>

libvirt/templates/daemonset-libvirt.yaml

@@ -20,6 +20,13 @@ exec:
     - /usr/bin/virsh connect
 {{- end }}
 
+{{- define "libvirtExporterProbeTemplate" }}
+httpGet:
+  path: /
+  port: metrics
+  scheme: HTTP
+{{- end }}
+
 {{- define "libvirt.daemonset" }}
 {{- $daemonset := index . 0 }}
 {{- $configMapName := index . 1 }}
@@ -312,16 +319,8 @@ spec:
             - name: metrics
               protocol: TCP
               containerPort: {{ tuple "libvirt_exporter" "direct" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
-          livenessProbe:
+{{ dict "envAll" . "component" "libvirt" "container" "libvirt_exporter" "type" "readiness" "probeTemplate" (include "libvirtExporterProbeTemplate" . | fromYaml) | include "helm-toolkit.snippets.kubernetes_probe" | indent 10 }}
-            httpGet:
+{{ dict "envAll" . "component" "libvirt" "container" "libvirt_exporter" "type" "liveness" "probeTemplate" (include "libvirtExporterProbeTemplate" . | fromYaml) | include "helm-toolkit.snippets.kubernetes_probe" | indent 10 }}
-              path: /
-              port: metrics
-              timeoutSeconds: 5
-          readinessProbe:
-            httpGet:
-              path: /
-              port: metrics
-              timeoutSeconds: 5
           volumeMounts:
             - name: run
               mountPath: /run

libvirt/values.yaml

@@ -262,6 +262,19 @@ pod:
             initialDelaySeconds: 15
             periodSeconds: 60
             timeoutSeconds: 5
+      libvirt_exporter:
+        liveness:
+          enabled: true
+          params:
+            initialDelaySeconds: 30
+            periodSeconds: 60
+            timeoutSeconds: 5
+        readiness:
+          enabled: true
+          params:
+            initialDelaySeconds: 15
+            periodSeconds: 60
+            timeoutSeconds: 5
   security_context:
     libvirt:
       pod:

releasenotes/notes/libvirt-e8ba1d91a8ca4999.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Added readiness and liveness probes for the libvirt-exporter sidecar container.
+...