adds custom startup script capability

charts/databend-meta/Chart.yaml

@@ -26,7 +26,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.9.3
+version: 0.9.4
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/databend-meta/templates/statefulset.yaml

@@ -45,14 +45,17 @@ spec:
  imagePullPolicy: {{ .Values.image.pullPolicy }}
  command: ["/bin/bash", "-c"]
  args:
+ {{- if .Values.customStartupScript }}
+ - {{ .Values.customStartupScript }}
+ {{- else }}
  - |
  echo "check if my service is running and run commands ";
  if [[ $POD_NAME =~ (.*)-([0-9]+)$ ]]
  then
  ID=${BASH_REMATCH[2]}
  NAME=${BASH_REMATCH[1]}
  echo "ID: $ID" "NAME : $NAME"
- {{- if $bootstrap }}
+  {{- if $bootstrap }}
  case ${BASH_REMATCH[2]} in
  0)
  echo "initialize leader node";
@@ -71,18 +74,19 @@ spec:
  --config-file /etc/databend/meta.yaml
  ;;
  esac
- {{- else }}
+  {{- else }}
  exec /databend-meta --id ${ID} --config-id ${ID} \
  {{- range $i := until $replicaCount }}
  --join "${NAME}-{{ $i }}.{{ $fullName }}.${POD_NAMESPACE}.svc.cluster.local:28004" \
  {{- end }}
  --raft-advertise-host "${POD_NAME}.{{ $fullName }}.${POD_NAMESPACE}.svc.cluster.local" \
  --grpc-api-advertise-host "${POD_NAME}.{{ $fullName }}.${POD_NAMESPACE}.svc.cluster.local" \
  --config-file /etc/databend/meta.yaml
- {{- end }}
+  {{- end }}
  else
  echo pod name $POD_NAME is not valid && exit 1
  fi
+ {{- end }}
  ports:
  {{- range $key, $val := .Values.service.ports }}
  - name: {{ $key }}
@@ -122,6 +126,9 @@ spec:
  - name: data
  mountPath: {{ .Values.persistence.mountPath }}
  {{- end }}
+ {{- if .Values.extraVolumeMounts }}
+ {{- include "common.tplvalues.render" (dict "value" .Values.extraVolumeMounts "context" $) | nindent 12 }}
+ {{- end }}
  {{- if .Values.sidecars }}
  {{- include "common.tplvalues.render" (dict "value" .Values.sidecars "context" $) | nindent 8 }}
  {{- end }}
@@ -137,6 +144,10 @@ spec:
  tolerations:
  {{- toYaml . | nindent 8 }}
  {{- end }}
+ {{- with .Values.topologySpreadConstraints }}
+ topologySpreadConstraints:
+ {{- toYaml . | nindent 8 }}
+ {{- end }}
  volumes:
  - name: config
  configMap:
@@ -145,6 +156,9 @@ spec:
  {{- else }}
  name: {{ include "databend-meta.fullname" . }}
  {{- end }}
+ {{- if .Values.extraVolumes }}
+ {{- include "common.tplvalues.render" (dict "value" .Values.extraVolumes "context" $) | nindent 8 }}
+ {{- end }}
 {{- if .Values.persistence.enabled }}
  volumeClaimTemplates:
  - metadata:

charts/databend-meta/values.yaml

@@ -5,6 +5,10 @@
 bootstrap: false
 replicaCount: 1
 
+# This value should be the name of the file containing the statup script for your Databend-meta pods. 
+# You will still need to mount your script as an extra volumes.
+customStartupScript: false
+
 image:
  repository: datafuselabs/databend-meta
  pullPolicy: IfNotPresent