K8S 1.22部署Pgsql+Kong+Konga

K8S 1.22部署Pgsql+Kong+Konga

部署Postgres 9.6​

注：K8S集群环境需要提前部署nfs存储,ingress-nginx,使用postgres:12.9版本时,部署konga后会一直报错,查询是版本问题，图省事直接按照网上选择的9.6版本

1.创建pvc

#pvc.yaml文件
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pgsql
namespace: kong-pg
spec:
storageClassName: pgsql-pvc
accessModes:
  - ReadWriteMany
resources:
  requests:
   storage: 40Gi

2.创建pgsql

#pgsql.yaml文件
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgresql
  namespace: kong-pg
spec:
  serviceName: "postgres"
  replicas: 1
  selector:
    matchLabels:
      app: postgresql
  template:
    metadata:
      labels:
        app: postgresql
    spec:
      containers:
      - name: postgresql
        image: postgres:9.6
        imagePullPolicy: IfNotPresent
        #envFrom:
        #- configMapRef:
        #   name: postgres-config
        env:
        - name: POSTGRES_DB
          value: postgres
        - name: POSTGRES_USER
          value: postgres
        - name: POSTGRES_PASSWORD
          value: admin12345
        - name: PGDATA
          value: /var/lib/postgresql/data
        ports:
        - containerPort: 5432
          protocol: TCP
          name: postgresql-port
        volumeMounts:
        - name: postgresql-data
          mountPath: /var/lib/postgresql/data
      volumes:
        - name: postgresql-data
          persistentVolumeClaim:
            claimName: pgsql
---
apiVersion: v1
kind: Service
metadata:
  name: postgresql-svc
  namespace: kong-pg
  labels:
    app: postgresql-svc
spec:
  ports:
  - name: postgresql-port
    port: 5432
    protocol: TCP
  type: LoadBalancer
  selector:
    app: postgresql

3.创建并查看状态

部署Kong

#登录pgsql
psql  -U postgres -h 10.244.2.28 -p5432
Password for user postgres:
#创建kong数据库
create user kong;
create database kong owner kong;
alter user kong with encrypted password 'kong12345';
grant all privileges on database kong to kong;

1.创建kong的pvc 

#conf-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: kong-conf
namespace: kong-pg
spec:
storageClassName: pgsql-pvc
accessModes:
  - ReadWriteMany
resources:
  requests:
   storage: 5Gi


#plugin-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: kong-plugin
namespace: kong-pg
spec:
storageClassName: pgsql-pvc
accessModes:
  - ReadWriteMany
resources:
  requests:
   storage: 5Gi

2.创建kong

#kong.yaml
# postgresql-svc.kong-pg.svc.cluster.local其中kong-pg是namespace名称
apiVersion: apps/v1
kind: Deployment
metadata:
  name: kong
  namespace: kong-pg
spec:
  replicas: 1
  selector:
    matchLabels:
      app: kong
  template:
    metadata:
      labels:
        app: kong
    spec:
      containers:
      - name: kong
        image: kong:2.7.0
        imagePullPolicy: IfNotPresent
        env:
        - name: KONG_PG_USER
          value: "kong"
        - name: KONG_PG_PASSWORD
          value: "kong12345"
        - name: KONG_PG_HOST
          value: "postgresql-svc.kong-pg.svc.cluster.local"
        - name: KONG_PG_DATABASE
          value: "kong"       
        - name: KONG_DATABASE
          value: "postgres"
        - name: KONG_PG_PORT
          value: "5432"
        - name: KONG_ADMIN_LISTEN
          value: "0.0.0.0:8001, 0.0.0.0:8444 ssl"
        - name: KONG_PROXY_ERROR_LOG
          value: "/dev/stderr"
        - name: KONG_PROXY_ACCESS_LOG
          value: "/dev/stdout"
        - name: KONG_ADMIN_ERROR_LOG
          value: "/dev/stderr"
        - name: KONG_ADMIN_ACCESS_LOG
          value: "/dev/stdout"
        command: ["/bin/sh","-c"]
        args: [ "kong migrations bootstrap"]
        ports:
        - containerPort: 8000
          protocol: TCP
          name: kong-proxy
        - containerPort: 8001
          hostPort: 8001
          protocol: TCP
          name: kong-admin
        - containerPort: 8443
          protocol: TCP
          name: kong-proxy-ssl
        - containerPort: 8444
          protocol: TCP
          name: kong-admin-ssl
        volumeMounts:
        - name: kong-plugin
          mountPath: /usr/local/share/lua/5.1/kong/plugins/cas
        - name: kong-conf
          mountPath: /etc/kong
      volumes:
      - name: kong-plugin
        persistentVolumeClaim:
         claimName: kong-plugin
      - name: kong-conf
        persistentVolumeClaim:
         claimName: kong-conf
---
apiVersion: v1
kind: Service
metadata:
  name: kong-svc
  namespace: kong-pg
  labels:
    app: kong-svc
spec:
  ports:
  - name: kong-port
    port: 8000
   # nodePort: 30080
    protocol: TCP
  - name: kong-admin-port
    port: 8001
    protocol: TCP
  type: ClusterIP
  selector:
    app: kong

注：kong要先执行kong migrations bootstrap,然后才能启动,不太会使用初始化容器,所以要先启动一次kong,然后把44-45行注释掉，在执行kubectl replace -f kong.yaml

3.创建并查看状态

部署konga:

1.创建konga

#konga.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: konga
  namespace: kong-pg
spec:
  replicas: 1
  selector:
    matchLabels:
      app: konga
  template:
    metadata:
      labels:
        app: konga
    spec:
      containers:
      - name: konga
        image: pantsel/konga:latest
        imagePullPolicy: IfNotPresent
        env:
        - name: DB_ADAPTER
          value: "postgres"
        - name: DB_DATABASE
          value: "konga"
        - name: DB_HOST
          value: "postgresql-svc.kong-pg.svc.cluster.local"
        - name: DB_USER
          value: "konga"
        - name: DB_PASSWORD
          value: "konga12345"
        - name: DB_PORT
          value: "5432"
        - name: DB_PG_SCHEMA
          value: "public"
        - name: KONGA_LOG_LEVEL
          value: "debug"
        - name: NODE_ENV
          value: "development"
          #value: "production"
        - name: TZ
          value: Asia/Shanghai
        ports:
        - containerPort: 1337
          protocol: TCP
          name: konga
---
apiVersion: v1
kind: Service
metadata:
  name: konga-svc
  namespace: kong-pg
  labels:
    app: konga-svc
spec:
  ports:
  - name: konga-port
    port: 1337
    protocol: TCP
  type: ClusterIP
  selector:
    app: konga

​注意: ENV这块要配置成development 不然会报错 kubectl create -f konga.yaml

2.创建并查看状态

配置Ingress

1.创建kong-ingress

#kong-ingrss.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: kong-ingress
  namespace: kong-pg
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - host: 'kong.gateway.com'
    http:
      paths:
      - path: "/"
        pathType: Prefix
        backend:
          service:
            name: kong-svc
            port:
              number: 8000

2.查看状态