k8s笔记7.4--helm构建无端口类型chart

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k8s笔记7.4--helm构建无端口类型chart

介绍
无端口chart
注意事项
说明

介绍

helm create chartName 后，默认创建了一个web类型的应用，而且配置了service 和端口探测；如果直接更换为无端口的worker 类型应用，那么部署就报错了。因此需要调整helm chart文件，是指无端口和service 配置，然后再打包部署。
本文以busybox 为例，打包一个无端口的helm chart，并部署到 k8s 中。

无端口chart

创建chart
```
helm create xg-busybox
```

清理无用的配置项

values.yaml 中设置ingress 为false
eployment.yaml 中去掉端口相关的配置 containers.ports
去掉配置文件 service.yaml

values.yaml
replicaCount: 1image:repository: registry-vpc.cn-shanghai.aliyuncs.com/yourNamespace/busyboxpullPolicy: IfNotPresent# Overrides the image tag whose default is the chart appVersion.tag: busybox_1.31imagePullSecrets: [{"name": "regcred"}]
nameOverride: ""
fullnameOverride: ""serviceAccount:create: trueannotations: {}name: ""podAnnotations: {}podSecurityContext: {}# fsGroup: 2000securityContext: {}service:type: ClusterIPport: 80ingress:enabled: falseclassName: ""annotations: {}hosts:- host: chart-example.localpaths:- path: /pathType: ImplementationSpecifictls: []resources: {}autoscaling:enabled: falseminReplicas: 1maxReplicas: 100targetCPUUtilizationPercentage: 80nodeSelector: {}tolerations: []affinity: {}vim templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:name: {{ include "xg-busybox.fullname" . }}labels:{{- include "xg-busybox.labels" . | nindent 4 }}
spec:{{- if not .Values.autoscaling.enabled }}replicas: {{ .Values.replicaCount }}{{- end }}selector:matchLabels:{{- include "xg-busybox.selectorLabels" . | nindent 6 }}template:metadata:{{- with .Values.podAnnotations }}annotations:{{- toYaml . | nindent 8 }}{{- end }}labels:{{- include "xg-busybox.selectorLabels" . | nindent 8 }}spec:{{- with .Values.imagePullSecrets }}imagePullSecrets:{{- toYaml . | nindent 8 }}{{- end }}serviceAccountName: {{ include "xg-busybox.serviceAccountName" . }}securityContext:{{- toYaml .Values.podSecurityContext | nindent 8 }}containers:- name: {{ .Chart.Name }}securityContext:{{- toYaml .Values.securityContext | nindent 12 }}image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"command: [sh, -c, 'sleep infinity']imagePullPolicy: {{ .Values.image.pullPolicy }}resources:{{- toYaml .Values.resources | nindent 12 }}{{- with .Values.nodeSelector }}nodeSelector:{{- toYaml . | nindent 8 }}{{- end }}{{- with .Values.affinity }}affinity:{{- toYaml . | nindent 8 }}{{- end }}{{- with .Values.tolerations }}tolerations:{{- toYaml . | nindent 8 }}{{- end }}

打包部署

# helm push xg-busybox/ bigdata-apps
# helm repo update
# helm upgrade xg-busybox-dev bigdata-apps/xg-busybox -f xg-busybox/dev-values.yaml --set=image.tag=busybox_1.31 -n sre-test
# helm list -A|grep xg-busybox
xg-busybox-dev	sre-test 	2       	2021-08-21 17:09:41.318788496 +0800 CST	deployed	xg-busybox-0.1.4  	1.31

此时可以发现已经正常更新服务 xg-busybox-dev了。