bitflicker64 commented on code in PR #3402:
URL: https://github.com/apache/hugegraph/pull/3402#discussion_r4370580765
##########
helm/hugegraph/templates/seatunnel.yaml:
##########
@@ -0,0 +1,262 @@
+{{/*
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to You 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.
+
+Based on Apache SeaTunnel v3.0.0 hybrid Kubernetes resources:
+https://github.com/apache/seatunnel/blob/v3.0.0/docs/zh/getting-started/kubernetes/hybrid-cluster-mode.md
+Use its DNS discovery alternative, so Kubernetes API RBAC is unnecessary.
+*/}}
+
+{{- define "hugegraph.seatunnel.config" -}}
+{{- $name := include "hugegraph.seatunnel.name" . -}}
+{{- $dns := printf "%s-headless.%s.svc" $name .Release.Namespace -}}
+{{- $data := dict -}}
+{{- $hazelcast := dict "hazelcast" (dict
+ "cluster-name" $name
+ "network" (dict
+ "port" (dict "auto-increment" false "port" 5801)
+ "join" (dict "kubernetes" (dict "enabled" true "service-dns" $dns
"service-port" 5801 "service-dns-timeout" 10)))
+ "properties" (dict "hazelcast.logging.type" "log4j2")) -}}
+{{- $_ := set $data "hazelcast.yaml" ($hazelcast | toYaml) -}}
+{{- $client := dict "hazelcast-client" (dict
+ "cluster-name" $name
+ "properties" (dict "hazelcast.logging.type" "log4j2")
+ "connection-strategy" (dict "connection-retry" (dict
"cluster-connect-timeout-millis" 7000))
+ "network" (dict "cluster-members" (list (printf "%s:5801" $dns)))) -}}
+{{- $_ := set $data "hazelcast-client.yaml" ($client | toYaml) -}}
+{{- $engine := dict "seatunnel" (dict "engine" (dict
+ "backup-count" (ternary 0 1 (eq .Values.seatunnel.mode "standalone"))
+ "history-job-expire-minutes" 1440
+ "classloader-cache-mode" true
+ "slot-service" (dict "dynamic-slot" true)
+ "checkpoint" (dict "interval" 180000 "timeout" 30000 "storage" (dict
+ "type" "hdfs" "max-retained" 3 "plugin-config" (dict
+ "namespace" "/tmp/seatunnel/checkpoint/" "storage.type" "hdfs"
"fs.defaultFS" "file:///tmp/")))
+ "http" (dict "enable-http" true "port" 8080 "enable-dynamic-port" false)))
-}}
+{{- $_ := set $data "seatunnel.yaml" ($engine | toYaml) -}}
+{{/* The upstream script appends jvm_options after JAVA_OPTS; set heap in that
file. */}}
+{{- $_ := set $data "jvm_options" (.Values.seatunnel.javaOpts | replace " "
"\n") -}}
+{{- range $path, $_ := .Files.Glob "examples/seatunnel/hugegraph-*.conf" -}}
+{{- $_ := set $data (base $path) ($.Files.Get $path) -}}
+{{- end -}}
+{{- range $filename, $content := .Values.seatunnel.config -}}
+{{- $_ := set $data $filename $content -}}
+{{- end -}}
+{{- toYaml $data -}}
+{{- end -}}
+
+{{- if (.Values.seatunnel | default dict).enabled }}
+{{- include "hugegraph.resolveValues" . }}
+{{- include "hugegraph.validateValues" . }}
+{{- $name := include "hugegraph.seatunnel.name" . }}
+{{- $config := omit (include "hugegraph.seatunnel.config" . | fromYaml)
"seatunnel.yaml" }}
+{{- $svc := .Values.seatunnel.service }}
+{{- $env := list
+ (dict "name" "SEATUNNEL_HOME" "value" "/opt/seatunnel")
+ (dict "name" "HG_HOST" "value" (printf "%s.%s.svc" (include
"hugegraph.server.name" .) .Release.Namespace))
+ (dict "name" "HG_PORT" "value" (.Values.server.port | toString))
+ (dict "name" "HG_PROTOCOL" "value" "http")
+ (dict "name" "HG_USERNAME" "value" "admin")
+ (dict "name" "HG_GRAPH_SPACE" "value" .Values.server.graphSpace)
+ (dict "name" "HG_GRAPH_NAME" "value" "graph_a") }}
+{{- $password := dict "name" "HG_PASSWORD" "value" "" }}
+{{- if .Values.server.auth.enabled }}
+{{- $password = dict "name" "HG_PASSWORD" "valueFrom" (dict "secretKeyRef"
(dict
+ "name" (include "hugegraph.server.authSecretName" .)
+ "key" (include "hugegraph.server.authSecretKey" .))) }}
+{{- end }}
+{{- $env = append $env $password }}
+{{- $overrides := dict }}
+{{- range .Values.seatunnel.env }}
+{{- $_ := set $overrides .name true }}
+{{- end }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+ name: {{ $name }}-configs
+ labels:
+ {{- include "hugegraph.labels" . | nindent 4 }}
+ app.kubernetes.io/component: seatunnel
+data:
+ {{- toYaml $config | nindent 2 }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+ name: {{ $name }}-headless
+ labels:
+ {{- include "hugegraph.labels" . | nindent 4 }}
+ app.kubernetes.io/component: seatunnel
+spec:
+ clusterIP: None
+ publishNotReadyAddresses: true
+ ports:
+ - name: hazelcast
+ port: 5801
+ targetPort: hazelcast
+ selector:
+ {{- include "hugegraph.selectorLabels" . | nindent 4 }}
+ app.kubernetes.io/component: seatunnel
+---
+apiVersion: v1
+kind: Service
+metadata:
+ name: {{ $name }}
+ labels:
+ {{- include "hugegraph.labels" . | nindent 4 }}
+ app.kubernetes.io/component: seatunnel
+ {{- with $svc.annotations }}
+ annotations:
+ {{- toYaml . | nindent 4 }}
+ {{- end }}
+spec:
+ type: {{ $svc.type }}
+ {{- range $field := list "externalTrafficPolicy" "loadBalancerClass"
"loadBalancerIP" "loadBalancerSourceRanges" "externalIPs" }}
+ {{- with get $svc $field }}
+ {{ $field }}: {{ toYaml . | nindent 4 }}
+ {{- end }}
+ {{- end }}
+ {{- if hasKey $svc "allocateLoadBalancerNodePorts" }}
+ {{- if ne (get $svc "allocateLoadBalancerNodePorts") nil }}
+ allocateLoadBalancerNodePorts: {{ $svc.allocateLoadBalancerNodePorts }}
+ {{- end }}
+ {{- end }}
+ ports:
+ - name: http
+ port: 8080
+ targetPort: http
+ {{- with $svc.nodePort }}
+ nodePort: {{ . }}
+ {{- end }}
+ selector:
+ {{- include "hugegraph.selectorLabels" . | nindent 4 }}
+ app.kubernetes.io/component: seatunnel
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+ name: {{ $name }}
+ labels:
+ {{- include "hugegraph.labels" . | nindent 4 }}
+ app.kubernetes.io/component: seatunnel
+spec:
+ serviceName: {{ $name }}-headless
+ replicas: {{ ternary 1 (int .Values.seatunnel.replicas) (eq
.Values.seatunnel.mode "standalone") }}
+ podManagementPolicy: Parallel
Review Comment:
Important: `Parallel` starts both cluster-mode members at once, and members
started together never elect a master: both log `Could not join cluster.
Shutting down now!` after 300s, while 8080 stays up, so the `tcpSocket`
readiness probe passes with `workers: 0`. Drop `podManagementPolicy: Parallel`
so members start in order, as the upstream hybrid manifest does.
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