Ceph: parameterize kubectl param

Not to use hard coded labels in kubectl command

Change-Id: Ia53b4bd00071b08d1064349bad596c978814a719
Signed-off-by: Huamin Chen <hchen@redhat.com>

ceph/templates/bin/_start_mon.sh.tpl

@@ -30,9 +30,9 @@ function get_mon_config {
   while [[ -z "${MONMAP_ADD// }" && "${timeout}" -gt 0 ]]; do
     # Get the ceph mon pods (name and IP) from the Kubernetes API. Formatted as a set of monmap params
     if [[ ${K8S_HOST_NETWORK} -eq 0 ]]; then
-        MONMAP_ADD=$(kubectl get pods --namespace=${NAMESPACE} -l application=ceph -l component=mon -o template --template="{{`{{range .items}}`}}{{`{{if .status.podIP}}`}}--add {{`{{.metadata.name}}`}} {{`{{.status.podIP}}`}} {{`{{end}}`}} {{`{{end}}`}}")
+        MONMAP_ADD=$(kubectl get pods --namespace=${NAMESPACE} ${KUBECTL_PARAM} -o template --template="{{`{{range .items}}`}}{{`{{if .status.podIP}}`}}--add {{`{{.metadata.name}}`}} {{`{{.status.podIP}}`}} {{`{{end}}`}} {{`{{end}}`}}")
     else
-        MONMAP_ADD=$(kubectl get pods --namespace=${NAMESPACE} -l application=ceph -l component=mon -o template --template="{{`{{range .items}}`}}{{`{{if .status.podIP}}`}}--add {{`{{.spec.nodeName}}`}} {{`{{.status.podIP}}`}} {{`{{end}}`}} {{`{{end}}`}}")
+        MONMAP_ADD=$(kubectl get pods --namespace=${NAMESPACE} ${KUBECTL_PARAM} -o template --template="{{`{{range .items}}`}}{{`{{if .status.podIP}}`}}--add {{`{{.spec.nodeName}}`}} {{`{{.status.podIP}}`}} {{`{{end}}`}} {{`{{end}}`}}")
     fi
     (( timeout-- ))
     sleep 1

ceph/templates/daemonset-mon.yaml

@@ -75,6 +75,8 @@ spec:
               value: mon
             - name: CEPH_PUBLIC_NETWORK
               value: {{ .Values.network.public | quote }}
+            - name: KUBECTL_PARAM
+              value: {{ tuple $envAll "ceph" "mon" | include "helm-toolkit.snippets.kubernetes_kubectl_params" | indent 10 }}
             - name: MON_IP
               valueFrom:
                 fieldRef:

helm-toolkit/templates/snippets/_kubernetes_kubectl_params.tpl

@@ -0,0 +1,22 @@
+{{/*
+Copyright 2017 The Openstack-Helm Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/}}
+
+{{- define "helm-toolkit.snippets.kubernetes_kubectl_params" -}}
+{{- $envAll := index . 0 -}}
+{{- $application := index . 1 -}}
+{{- $component := index . 2 -}}
+{{ print "-l application=" $application " -l component=" $component }}
+{{- end -}}