k8s 中 ingress的安装及配置

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已于 2022-12-22 15:25:37 修改 · 2.5k 阅读

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#kubernetes

于 2022-12-22 15:24:40 首次发布

本文详细介绍了如何在Kubernetes环境中安装和配置ingress。首先，通过kubectl应用mandatory.yaml文件来安装nginx-ingress-controller。接着，创建一个ingress service，采用nodeport模式，并针对2.0版K8S进行配置。最后，通过kubectl部署nginx-ingress-backend的配置，用于发布网站并链接到后端service。

ingress 服务在k8s中也是以后台pod的形式存在，需要安装nginx-ingress-controller的镜像。
需要单独建立ingress的service，防火墙上发布应用，针对的是此service的端口。
ingress上发布应用，需要新增单独的ingress配置，配置域名、端口、后台对应的service等。

1. 先安装nginx-ingress-controller相关的pod。

kubectl apply -f mandatory.yaml

其中mandatory.yaml的内容如下，会自动建ns，

apiVersion: v1
kind: Namespace
metadata:
  name: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
 
kind: ConfigMap
apiVersion: v1
metadata:
  name: nginx-configuration
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: tcp-services
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: udp-services
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: nginx-ingress-serviceaccount
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  name: nginx-ingress-clusterrole
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
rules:
  - apiGroups:
      - ""
    resources:
      - configmaps
      - endpoints
      - nodes
      - pods
      - secrets
    verbs:
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - nodes
    verbs:
      - get
  - apiGroups:
      - ""
    resources:
      - services
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - events
    verbs:
      - create
      - patch
  - apiGroups:
      - "extensions"
      - "networking.k8s.io"
    resources:
      - ingresses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - "extensions"
      - "networkin