k8s搭建lnmp(Discuz)

下载公共镜像

# 下载nginx-php-fpm镜像
docker pull richarvey/nginx-php-fpm
# 下载mysql 5.7镜像
docker pull mysql:5.7
# 如果有自己镜像仓库，如harbor可将镜像上传上去

安装NFS(测试使用的NFS，生产中建议使用ceph等存储)

创建web和DB目录

1 2	# 有单独的服务器或者安装在master上 mkdir -p /data/k8s/{web,db}

安装nfs
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yum -y install nfs-utils

设置共享目录

1 2	vim /etc/exports /data/k8s 192.168.100.0/24(sync,rw,no_root_squash)

客户端挂载

# node节点上
yum install nfs-utils -y
mount -t nfs 192.168.100.11:/data/k8s /mnt
# 建议加入开机自启
echo "192.168.100.11:/data/k8s    /mnt    nfs    defaults  0 0" >>/etc/fstab

启动服务

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# nfs服务端
systemctl start nfs
systemctl enable nfs

安装mysql

创建yaml文件目录
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mkdir -p /data/k8s-yaml/lnmp

创建secret,存储mysql密码

kubectl create secret generic mysql-pass --from-literal=password=xxzx@789
# 使用base64加解密
echo -n xxzx@789 |base64
echo eHh6eEA3ODk= | base64 -d

创建mysql pv,pvc

# mysql-pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  name: mysql-pv
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteMany
  nfs:
    path: /data/k8s/db              #该参数指定你的NFS端的共享目录
    server: 192.168.100.11

# mysql-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-claim
  labels:
    app: discuz
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 5Gi

查看pv，pvc信息
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kubectl get pv,pvc

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创建mysql-deploy

# mysql-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: dz-mysql
  labels:
    app: discuz
spec:
  selector:
    matchLabels:
      app: discuz
      tier: mysql
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: discuz
        tier: mysql
    spec:
      imagePullSecrets:
       - name: my-secret
      containers:
      - image: mysql:5.7      ##此处指定你的harbor需要拉取的镜像
        name: mysql
        env:
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysql-pass                    ##此模块是调用secret中存放的mysql密码
              key: password
        ports:
        - containerPort: 3306
          name: dz-mysql
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:                     ##此模块参数调用定义创建的pvc名称
          claimName: mysql-claim

创建mysql-service

# mysql-service.yaml
apiVersion: v1
kind: Service
metadata:
  name: dz-mysql
  labels:
    app: discuz
spec:
  ports:
    - port: 3306
  selector:
    app: discuz
    tier: mysql

安装nginx

创建nginx-pv,nginx-pvc

# nginx-pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  name: web-pv
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteMany
  nfs:
    path: /data/k8s/web
    server: 192.168.100.11

# nginx-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: web-claim
  labels:
    app: discuz
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 5Gi

创建nginx-deploy

# nginx-dp.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: dz-web
  labels:
    app: discuz
spec:
  replicas: 1
  selector:
    matchLabels:
      app: discuz
      tier: nginx-php
  template:
    metadata:
      labels:
        app: discuz
        tier: nginx-php
    spec:
      imagePullSecrets:
      - name: my-secret
      containers:
      - image: richarvey/nginx-php-fpm:latest
        name: dz-web
        ports:
        - containerPort: 9000
        - containerPort: 80
          name: dz-web
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/www/html/
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: web-claim

创建nginx-service

# nginx-svc.yaml
apiVersion: v1
kind: Service
metadata:
  name: dz-web
  labels:
    app: discuz
spec:
  type: NodePort
  ports:
    - port: 80
      nodePort: 30001
  selector:
    app: discuz
    tier: nginx-php

安装Discuz

下载discuz

# NFS服务器上操作
cd /data/k8s
git clone https://gitee.com/ComsenzDiscuz/DiscuzX.git
cp -a DiscuzX/upload/* web/
cd web/
chmod 774 data uc_server/data uc_client/data config

mysql上创建dz库并授权用户

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kubectl exec -it dz-mysql-xxx -- mysql -uroot -p
create database dz default character set utf8;
grant all on dz.* to 'dz'@'%' identified by 'abc123';

浏览器访问安装
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x.x.x.x:30001

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