[libvirt] Make readiness probe more tiny

Use virsh connect instead of list which is heavy and may
stuck for a while when libvirt creating domains.

Change-Id: I515c70b0b3a050599726ca2548eeeb7fd3f3e6ea

libvirt/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm libvirt
 name: libvirt
-version: 0.1.36
+version: 0.1.37
 home: https://libvirt.org
 sources:
   - https://libvirt.org/git/?p=libvirt.git;a=summary

libvirt/templates/daemonset-libvirt.yaml

@@ -12,19 +12,12 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */}}
 
-{{- define "libvirtReadinessProbeTemplate" }}
+{{- define "libvirtProbeTemplate" }}
 exec:
   command:
     - bash
     - -c
-    - /usr/bin/virsh list
-{{- end }}
-{{- define "libvirtLivenessProbeTemplate" }}
-exec:
-  command:
-    - bash
-    - -c
-    - /usr/bin/virsh list
+    - /usr/bin/virsh connect
 {{- end }}
 
 {{- define "libvirt.daemonset" }}
@@ -225,8 +218,8 @@ spec:
             - name: LIBVIRT_EXTERNAL_CEPH_CINDER_SECRET_UUID
               value: "{{ .Values.conf.ceph.cinder.external_ceph.secret_uuid }}"
             {{ end }}
-{{ dict "envAll" . "component" "libvirt" "container" "libvirt" "type" "readiness" "probeTemplate" (include "libvirtReadinessProbeTemplate" . | fromYaml) | include "helm-toolkit.snippets.kubernetes_probe" | indent 10 }}
-{{ dict "envAll" . "component" "libvirt" "container" "libvirt" "type" "liveness" "probeTemplate" (include "libvirtLivenessProbeTemplate" . | fromYaml) | include "helm-toolkit.snippets.kubernetes_probe" | indent 10 }}
+{{ dict "envAll" . "component" "libvirt" "container" "libvirt" "type" "readiness" "probeTemplate" (include "libvirtProbeTemplate" . | fromYaml) | include "helm-toolkit.snippets.kubernetes_probe" | indent 10 }}
+{{ dict "envAll" . "component" "libvirt" "container" "libvirt" "type" "liveness" "probeTemplate" (include "libvirtProbeTemplate" . | fromYaml) | include "helm-toolkit.snippets.kubernetes_probe" | indent 10 }}
           command:
             - /tmp/libvirt.sh
           lifecycle:

releasenotes/notes/libvirt.yaml

@@ -37,4 +37,5 @@ libvirt:
   - 0.1.34 Remove hugepages creation test
   - 0.1.35 Allow to initialize virtualization modules
   - 0.1.36 Allow to generate dynamic config options
+  - 0.1.37 Make readiness probes more tiny
 ...