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HDDS-14351. Add preStop and graceful termination for OM and SCM #48

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HDDS-14351. Add preStop and graceful termination for OM and SCM #48

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1 change: 1 addition & 0 deletions charts/ozone/templates/om/om-service-headless.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ metadata:
app.kubernetes.io/component: om
spec:
clusterIP: None
publishNotReadyAddresses: true
ports:
- name: ui
port: {{ .Values.om.service.port }}
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18 changes: 18 additions & 0 deletions charts/ozone/templates/om/om-statefulset.yaml
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Expand Up @@ -49,6 +49,9 @@ spec:
{{- include "ozone.selectorLabels" . | nindent 8 }}
app.kubernetes.io/component: om
spec:
{{- if gt (int .Values.om.replicas) 1 }}
terminationGracePeriodSeconds: 150
{{- end }}
{{- with .Values.imagePullSecrets }}
imagePullSecrets: {{- toYaml . | nindent 8 }}
{{- end }}
Expand Down Expand Up @@ -101,6 +104,21 @@ spec:
containerPort: {{ .Values.om.service.port }}
- name: ratis
containerPort: {{ .Values.om.service.ratisPort }}
{{- if gt (int .Values.om.replicas) 1 }}
lifecycle:
preStop:
exec:
command:
- sh
- -c
- |
LEADER=$(ozone admin om roles -id {{ .Values.clusterId }} 2>/dev/null | grep LEADER | awk '{print $1}')
if [ "$LEADER" = "$(hostname)" ]; then
echo "This OM is leader, transferring leadership..."
ozone admin om transfer -id {{ .Values.clusterId }} -r || true
sleep 10
fi
{{- end }}
livenessProbe:
httpGet:
path: /
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1 change: 1 addition & 0 deletions charts/ozone/templates/scm/scm-service-headless.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ metadata:
app.kubernetes.io/component: scm
spec:
clusterIP: None
publishNotReadyAddresses: true
ports:
- name: ui
port: {{ .Values.scm.service.port }}
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18 changes: 18 additions & 0 deletions charts/ozone/templates/scm/scm-statefulset.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,9 @@ spec:
{{- include "ozone.selectorLabels" . | nindent 8 }}
app.kubernetes.io/component: scm
spec:
{{- if gt (int .Values.scm.replicas) 1 }}
terminationGracePeriodSeconds: 150
{{- end }}
{{- with .Values.imagePullSecrets }}
imagePullSecrets: {{- toYaml . | nindent 8 }}
{{- end }}
Expand Down Expand Up @@ -120,6 +123,21 @@ spec:
- name: grpc
containerPort: {{ .Values.scm.service.grpcPort }}
{{- end }}
{{- if gt (int .Values.scm.replicas) 1 }}
lifecycle:
preStop:
exec:
command:
- sh
- -c
- |
LEADER_HOST=$(ozone admin scm roles 2>/dev/null | grep LEADER | cut -d: -f1)
if [ "$LEADER_HOST" = "$(hostname -f)" ]; then
echo "This SCM is leader, transferring leadership..."
ozone admin scm transfer -id {{ .Values.clusterId }} -r || true
sleep 10
fi
{{- end }}
livenessProbe:
httpGet:
path: /
Expand Down