直接上代码 // 这里有三个状态 prerender，visible 和 hidden let pageVisibleStatus = document.visibilityState; // 监听页面状态 document.addEventListener('visibilitychange', function() { // 页面状态变化为不可见时触发 if (document.visibilityState == 'hidden') { … } // 页面状态变化为可见时触发 if (document.visibilityState == 'visible') { … } } );

# builder FROM golang:alpine AS builder ENV GO111MODULE=on  ENV GOPROXY="https://goproxy.cn" WORKDIR /go/src/app COPY . . RUN go build . # runner FROM alpine:latest WORKDIR /root/ COPY –from=builder /go/src/app . ENV TZ=Asia/Shanghai EXPOSE 8001 ENTRYPOINT ["./main"]

首先导入go的yum源 rpm –import https://mirror.go-repo.io/centos/RPM-GPG-KEY-GO-REPO curl -s https://mirror.go-repo.io/centos/go-repo.repo | tee /etc/yum.repos.d/go-repo.repo 执行安装操作 yum install golang -y 验证版本 go version

准备 主从数据库版本最好一致 主从数据库内数据保持一致 主数据库：192.168.1.31 /linux 从数据库：192.168.1.32 /linux 在主数据库上的操作 找到配置文件，并修改它，找到[mysqld] log-bin=mysql-bin #开启二进制日志 server-id=31 #设置server-id 重启MySQL，创建同步账号 先登录到主MySQL mysql -uroot -p123 创建同步账号，192.168.% 的意思是授权全部内网访问 mysql> CREATE USER 'repl'@'192.168.%' IDENTIFIED BY 'slavepass';#创建用户 mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.168.%';#分配权限 mysql>flush privileges; #刷新权限 查看master状态，记录二进制文件名(mysql-bin.000003…

.drone.yml 文件 kind: pipeline type: docker name: default steps: – name: 编译 image: golang:1.16.5-alpine pull: if-not-exists environment: GOPROXY: https://mirrors.aliyun.com/goproxy/ commands: – CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main . – name: 构建镜像 image: plugins/docker pull: if-not-exists settings: mirror: https://xxxx.mirror.aliyuncs.com # 我自己的加速地址 purge: false username: from_secret: docker_user # 在 drone 的 secret 里面设置的变量 password: from_secret: docker_pass # 在 drone 的 sec…

Drone 是一个高效灵活的 CI/CD 工具。 官方网站https://www.drone.io/ docker-compose.yml文件 version: '3' services: drone-server: restart: always image: drone/drone:2 #这里是版本，可选1和2 ports: – "10003:80" volumes: – ./data/drone/:/var/lib/drone/ – ./data/data/:/data/ environment: – DRONE_GITEA_SERVER=https://gitea服务器地址 – DRONE_GITEA_CLIENT_ID=gitea生成的OAuth2客户端ID – DRONE_GITEA_CLIENT_SECRET=gitea生成的OAuth2客户端密钥 – DRONE_SERVER_HOST=drone服务器地址 – DRONE_SERVER_PROTO=https – DRONE_RPC_SECRET=自定义的Drone与runner…

关于 swarm 1) 初始化swarm manager并制定网卡地址 # docker swarm init –advertise-addr 182.48.115.237 2) 删除集群，强制退出需要加–force (针对manager节点). 到各个节点上执行退出集群的命令 # docker node rm swarm-node1 # docker swarm leave –force //manager节点退出集群,需要加–force 3) 查看swarm worker的连接令牌 # docker swarm join-token worker 例如: [root@manager-node ~]# docker swarm init –advertise-addr 182.48.115.237 Swarm initialized: current node (1gi8utvhu4rxy8oxar2g7h6gr) is now a manager. To add a worker to this swarm, run the following command: docke…

FROM golang:1.16.5-alpine WORKDIR /build COPY ./ /build RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main . FROM alpine:latest LABEL maintainer="eric chan" ############################################################################### # INSTALLATION ############################################################################### # 使用国内alpine源 # RUN echo http://mirrors.ustc.edu.cn/alpine/v3.8/main/ > /etc/apk/repositories RUN echo http://mirrors.aliyun.com/alpine/v3…

直接上代码了，写在 package.json 文件里面 "uni-app": { "scripts": { "h5-dev": { "title": "H5-DEV", "env": { "NODE_ENV": "development", "UNI_PLATFORM": "h5", "VUE_APP_BASE_API": "dev-api-url" }, "define": { "H5": true } }, "h5-sit": { "title": "H5-SIT", "env": { "NODE_ENV": "production", "UNI_PLATFORM": …

SELECT TABLE_NAME, ROUND( sum( data_length + index_length )/ 1024 / 1024, 2 ) AS M FROM information_schema.TABLES WHERE TABLE_SCHEMA = "数据库名称" GROUP BY TABLE_NAME ORDER BY M DESC;

通过HTTP方式提交 生产 消息 使用GO SDK方式通过TCP提交消息和消费消息 直接上代码了 package main import ( "fmt" "github.com/nsqio/go-nsq" "io/ioutil" "log" "strconv" "time" ) var nullLogger = log.New(ioutil.Discard, "", log.LstdFlags) var nsqAddr = "192.168.0.101:4150" var nsqTopic = "test" // 生产者 func sendMessage() { config := nsq.NewConfig() // 1. 创建生产者 producer, err := nsq.NewProducer(nsqAddr, config) if err != nil { log.Fatalln("连接失…

前提 安装好docker 安装好docker-compose 机器 192.168.0.101 主节点 192.168.0.102 子节点 开放端口 4150 nsqd端口 TCP 4151 nsqd端口 HTTP 4160 nsqlookupd端口 子节点通讯端口 4161 nsqlookupd端口 消费者通讯端口 4171 管理端口 主节点 docker-compose.yml version: '2' services: nsqlookupd: image: nsqio/nsq command: /nsqlookupd networks: – nsq-network hostname: nsqlookupd ports: – "4161:4161" – "4160:4160" nsqd: image: nsqio/nsq command: /nsqd –lookupd-tcp-address=nsqlookupd:4160 -broadcast-address=192.168.0.101 # command: /nsq…

docker-compose run –rm web createuser –email admin888@example.com –password admin –superuser WARNING: The SENTRY_IMAGE variable is not set. Defaulting to a blank string. Starting sentry-onpremise_smtp_1 … done Starting sentry-onpremise_redis_1 … done Starting sentry-onpremise_postgres_1 … done Starting sentry-onpremise_memcached_1 … done 10:47:47 [WARNING] sentry.utils.geo: settings.GEOIP_PATH_MMDB not configured. 10:47:50 [INFO] sentry.plugins.github: apps-not-configured User create…

准备 卸载旧版docker yum remove docker docker-common docker-selinux docker-engine 安装依赖包 yum install -y yum-utils device-mapper-persistent-data lvm2 添加docker yum源 yum-config-manager –add-repo https://download.docker.com/linux/centos/docker-ce.repo 允许拓展最新的不稳定的repository yum-config-manager –enable docker-ce-edge 安装Docker yum -y install docker-ce 开机启动 systemctl enable docker 启动Docker systemctl start docker 安装docker-compose curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-co…