Allow initialization to be set (#53)

Fixes #47 

### Motivation
Only create the initialize job on install. 

### Modifications

- Added an initialize value that can be set to true on install, matching the documentation in the README.md

.ci/helm.sh

@@ -81,9 +81,9 @@ function ci::install_pulsar_chart() {
     ${CHARTS_HOME}/scripts/pulsar/upload_tls.sh -k ${CLUSTER} -d ${PULSAR_HOME}/.ci/tls
     sleep 10
 
-    echo ${HELM} install --values ${value_file} ${CLUSTER} ${CHARTS_HOME}/charts/pulsar
+    echo ${HELM} install --set initialize=true --values ${value_file} ${CLUSTER} ${CHARTS_HOME}/charts/pulsar
     ${HELM} template --values ${value_file} ${CLUSTER} ${CHARTS_HOME}/charts/pulsar
-    ${HELM} install --values ${value_file} ${CLUSTER} ${CHARTS_HOME}/charts/pulsar
+    ${HELM} install --set initialize=true --values ${value_file} ${CLUSTER} ${CHARTS_HOME}/charts/pulsar
 
     echo "wait until broker is alive"
     WC=$(${KUBECTL} get pods -n ${NAMESPACE} --field-selector=status.phase=Running | grep ${CLUSTER}-broker | wc -l)

charts/pulsar/templates/bookkeeper-cluster-initialize.yaml

@@ -16,7 +16,7 @@
 # specific language governing permissions and limitations
 # under the License.
 #
-
+{{- if .Values.initialize }}
 {{- if .Values.components.bookkeeper }}
 apiVersion: batch/v1
 kind: Job
@@ -75,3 +75,4 @@ spec:
       {{- include "pulsar.toolset.certs.volumes" . | nindent 6 }}
       restartPolicy: Never
 {{- end }}
+{{- end }}

charts/pulsar/templates/pulsar-cluster-initialize.yaml

@@ -17,6 +17,7 @@
 # under the License.
 #
 
+{{- if .Values.initialize }}
 {{- if .Values.components.broker }}
 apiVersion: batch/v1
 kind: Job
@@ -106,3 +107,4 @@ spec:
       {{- include "pulsar.toolset.certs.volumes" . | nindent 6 }}
       restartPolicy: Never
 {{- end }}
+{{- end }}

charts/pulsar/values.yaml

@@ -30,6 +30,9 @@ namespaceCreate: false
 ### Global Settings
 ###
 
+## Set to true on install
+initialize: false
+
 ## Pulsar Metadata Prefix
 ##
 ## By default, pulsar stores all the metadata at root path.