月盾的博客

#!/usr/bin/env node

const app = require('../app');
const debug = require('debug')('ws_server:www');
const { createServer } = require('http');
const { Server } = require('socket.io');
const { createAdapter } = require("@socket.io/redis-adapter");
const { Redis } = require("ioredis");

const port = normalizePort(process.env.PORT || '3000');
app.set('port', port);

const httpServer = createServer(app);

/**
 * Normalize a port into a number, string, or false.
 */
function normalizePort(val) {
	var port = parseInt(val, 10);
	if (isNaN(port)) {
		// named pipe
		return val;
	}
	if (port >= 0) {
		// port number
		return port;
	}
	return false;
}

/**
 * Event listener for HTTP server "error" event.
 */
function onError(error) {
	if (error.syscall !== 'listen') {
		throw error;
	}

	var bind = typeof port === 'string'
		? 'Pipe ' + port
		: 'Port ' + port;

	// handle specific listen errors with friendly messages
	switch (error.code) {
		case 'EACCES':
			console.error(bind + ' requires elevated privileges');
			process.exit(1);
			break;
		case 'EADDRINUSE':
			console.error(bind + ' is already in use');
			process.exit(1);
			break;
		default:
			throw error;
	}
}

/**
 * Event listener for HTTP server "listening" event.
 */
function onListening() {
	var addr = httpServer.address();
	var bind = typeof addr === 'string'
		? 'pipe ' + addr
		: 'port ' + addr.port;
	console.log('Listening on ' + bind);
}
// 重点部分
const pubClient = new Redis({
	host: process.env.REDIS_HOST,
	port: process.env.REDIS_PORT,
	password: process.env.REDIS_PASSWORD,
});
const subClient = pubClient.duplicate();

const io = new Server(httpServer, {
	adapter: createAdapter(pubClient, subClient),
	cors: {
		origin: ["https://admin.socket.io", "http://127.0.0.1:8080"],
		// allowedHeaders: ["Authorization", "Cookie"],
		credentials: true
	}
});

app.set("IO", io);

httpServer.listen(port);
httpServer.on('error', onError);
httpServer.on('listening', onListening);

Page({
  jump: function () {
    wx.navigateTo({
      url: './b-page?id=123',
      events: {
        acceptDataFromOpenedPage: function (data) {
          //接收B页面发送的数据
          console.log(data)
        },
      },
      success: function (res) {
        //页面打开后发送数据到B页面
        res.eventChannel.emit('acceptDataFromOpenerPage', { data: 'send from opener page' })
      }
    })
  },
})

Page({
  onLoad: function (option) {
    const id = option.id;// 通过URL参数获取A页面传递的数据
    const eventChannel = this.getOpenerEventChannel()
    eventChannel.on('acceptDataFromOpenerPage', function (data) {
      //通过事件channel接收A页面传递的数据
      console.log(data)
    })
  },
  setDataToA: function () {
    const eventChannel = this.getOpenerEventChannel()
    eventChannel.emit('acceptDataFromOpenedPage', { data: 'send from opened page' })
  },
})

du -sh <folder>

rm -rf <file>

$ du -h -d 1 | sort -h

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: mysql
  name: mysql
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: mysql
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
      labels:
        app: mysql
    spec:
      containers:
      - env:
        - name: MYSQL_ROOT_PASSWORD
          value: xxx
        image: mysql:8.0.33
        imagePullPolicy: IfNotPresent
        name: mysql
        ports:
        - containerPort: 3306
          name: mysql
          protocol: TCP
        resources:
          limits:
            cpu: "4"
            memory: 8Gi
        volumeMounts:
        - mountPath: /var/lib/mysql
          name: data
        - mountPath: /etc/mysql/conf.d/
          name: mysql-config
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: mysql
      - configMap:
          defaultMode: 420
          name: mysql-config
        name: mysql-config

---

apiVersion: v1
kind: ConfigMap
data:
  my.cnf: |-
    [client]
    default-character-set = utf8mb4
    [mysql]
    default-character-set=utf8mb4
    [mysqld]
    character-set-server=utf8mb4
    collation_server=utf8mb4_unicode_ci
    gtid_mode=ON
    enforce_gtid_consistency=ON
    lower_case_table_names=1
    open_files_limit=65535
    slow_query_log = ON
    long_query_time = 2
    max_heap_table_size = 32M
    tmp_table_size = 2M
    log-bin = mysql-bin
    binlog_cache_size = 32K
    max_binlog_cache_size = 1G
    max_binlog_size = 1G
    binlog-format = ROW
    sync_binlog = 1
    log-slave-updates = 1
    expire_logs_days = 7
    default-time_zone = +8:00
    max_connect_errors = 65535
    max_allowed_packet = 536870912
    max_connections = 5120
    innodb_buffer_pool_instances = 1
    innodb_buffer_pool_size = 6442450944
    innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:15G
    server_id = 100
metadata:
  name: mysql-config