第 9 篇 Helm 部署 Seata Server

文章目录

chart 源代码
- Chart.yaml
- values.yaml
- .helmignore
- templates\_helpers.tpl
- templates\deployment.yaml
- templates\service.yaml
- templates\NOTES.txt
快速启动
自定义配置
- 环境变量
- 自定义配置文件
参考
相关博文

🚀 本文内容：使用 Helm 部署 Seata Server。

👉 官方文档：https://seata.apache.org/zh-cn/docs/ops/deploy-by-helm

chart 源代码

v2.0.0 版本：

https://github.com/apache/incubator-seata
https://gitee.com/itsforkgithub/incubator-seata

源码包：incubator-seata-v2.0.0.zip

Chart.yaml

apiVersion: v1
appVersion: "1.0"
description: Seata Server
name: seata-server
version: 1.0.0

values.yaml

replicaCount: 1namespace: defaultimage:repository: seataio/seata-servertag: latestpullPolicy: IfNotPresentservice:type: NodePortport: 30091env:seataPort: "8091"storeMode: "file"serverNode: "1"

.helmignore

# Patterns to ignore when building packages.
# This supports shell glob matching, relative path matching, and
# negation (prefixed with !). Only one pattern per line.
.DS_Store
# Common VCS dirs
.git/
.gitignore
.bzr/
.bzrignore
.hg/
.hgignore
.svn/
# Common backup files
*.swp
*.bak
*.tmp
*~
# Various IDEs
.project
.idea/
*.tmproj
.vscode/

templates_helpers.tpl

{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "seata-server.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
{{- end -}}{{/*
Create a default fully qualified app name.
We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
If release name contains chart name it will be used as a full name.
*/}}
{{- define "seata-server.fullname" -}}
{{- if .Values.fullnameOverride -}}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "seata-server.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}{{/*
Common labels
*/}}
{{- define "seata-server.labels" -}}
app.kubernetes.io/name: {{ include "seata-server.name" . }}
helm.sh/chart: {{ include "seata-server.chart" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- if .Chart.AppVersion }}
app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
{{- end }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
{{- end -}}{{/*
Create the name of the service account to use
*/}}
{{- define "seata-server.serviceAccountName" -}}
{{- if .Values.serviceAccount.create -}}{{ default (include "seata-server.fullname" .) .Values.serviceAccount.name }}
{{- else -}}{{ default "default" .Values.serviceAccount.name }}
{{- end -}}
{{- end -}}

templates\deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
{{- if .Values.namespace }}namespace: {{ .Values.namespace }}
{{- end}}name: {{ include "seata-server.name" . }}labels:
{{ include "seata-server.labels" . | indent 4 }}
spec:replicas: {{ .Values.replicaCount }}selector:matchLabels:app.kubernetes.io/name: {{ include "seata-server.name" . }}app.kubernetes.io/instance: {{ .Release.Name }}template:metadata:labels:app.kubernetes.io/name: {{ include "seata-server.name" . }}app.kubernetes.io/instance: {{ .Release.Name }}spec:containers:- name: {{ .Chart.Name }}image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"imagePullPolicy: {{ .Values.image.pullPolicy }}ports:- name: httpcontainerPort: 8091protocol: TCP{{- if .Values.volume }}volumeMounts:{{- range .Values.volume }}- name: {{ .name }}mountPath: {{ .mountPath }}{{- end}}{{- end}}{{- if .Values.env }}env:{{- if .Values.env.seataIp }}- name: SEATA_IPvalue: {{ .Values.env.seataIp  | quote }}{{- end }}{{- if .Values.env.seataPort }}- name: SEATA_PORTvalue: {{ .Values.env.seataPort | quote }}{{- end }}{{- if .Values.env.seataEnv }}- name: SEATA_ENVvalue: {{ .Values.env.seataEnv }}{{- end }}{{- if .Values.env.seataConfigName }}- name: SEATA_CONFIG_NAMEvalue: {{ .Values.env.seataConfigName }}{{- end }}{{- if .Values.env.serverNode }}- name: SERVER_NODEvalue: {{ .Values.env.serverNode | quote }}{{- end }}{{- if .Values.env.storeMode }}- name: STORE_MODEvalue: {{ .Values.env.storeMode }}{{- end }}{{- end }}{{- if .Values.volume }}volumes:{{- range .Values.volume }}- name: {{ .name }}hostPath:path: {{ .hostPath}}{{- end}}{{- end}}

templates\service.yaml

apiVersion: v1
kind: Service
metadata:name: {{ include "seata-server.fullname" . }}labels:
{{ include "seata-server.labels" . | indent 4 }}
spec:type: {{ .Values.service.type }}ports:- port: {{ .Values.service.port }}targetPort: httpprotocol: TCPname: httpselector:app.kubernetes.io/name: {{ include "seata-server.name" . }}app.kubernetes.io/instance: {{ .Release.Name }}

templates\NOTES.txt

1. Get the application URL by running these commands:
{{- if contains "NodePort" .Values.service.type }}export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "seata-server.fullname" . }})export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")echo http://$NODE_IP:$NODE_PORT
{{- else if contains "LoadBalancer" .Values.service.type }}NOTE: It may take a few minutes for the LoadBalancer IP to be available.You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "seata-server.fullname" . }}'export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "seata-server.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")echo http://$SERVICE_IP:{{ .Values.service.port }}
{{- else if contains "ClusterIP" .Values.service.type }}export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "seata-server.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")echo "Visit http://127.0.0.1:8080 to use your application"kubectl port-forward $POD_NAME 8080:80
{{- end }}

快速启动

# 安装 git
yum install -y git# 克隆代码
git clone https://github.com/apache/incubator-seata.git
# 切换到 v2.0.0 版本
cd incubator-seata/
git checkout tags/v2.0.0# 快速启动
cd ./script/server/helm/seata-server
helm install seata-server .
# NAME: seata-server
# LAST DEPLOYED: Tue May 28 14:00:30 2024
# NAMESPACE: default
# STATUS: deployed
# REVISION: 1
# NOTES:
# 1. Get the application URL by running these commands:
#   export NODE_PORT=$(kubectl get --namespace default -o jsonpath="{.spec.ports[0].nodePort}" services seata-server)
#   export NODE_IP=$(kubectl get nodes --namespace default -o jsonpath="{.items[0].status.addresses[0].address}")
#   echo http://$NODE_IP:$NODE_PORT

自定义配置

环境变量

支持的环境变量和 Docker 相同，可以参考使用 Docker 部署 Seata Server

自定义配置文件

指定配置文件可以通过挂载的方式实现，如将 /root/workspace/seata/seata-config/file 下的配置文件挂载到 pod 中，挂载后需要通过指定 SEATA_CONFIG_NAME 指定配置文件位置，并且环境变量的值需要以file:开始, 如: file:/root/seata-config/registry

replicaCount: 1namespace: defaultimage:repository: seataio/seata-servertag: latestpullPolicy: IfNotPresentservice:type: NodePortport: 30091env:seataPort: "8091"storeMode: "file"seataIp: "127.0.0.1"seataConfigName: "file:/root/seata-config/registry"volume:- name: seata-configmountPath: /root/seata-confighostPath: /root/workspace/seata/seata-config/file