Docker - 更换源 Docker - 更换源一、基本信息宿主机系统: Ubuntu 20Docker版本 : 26.1.3二、Docker安装1.安装 Dockersudo apt install docker.io docker docker-compose -y2.修改配置修改 docker 镜像源。sudo vim /etc/docker/daemon.json插入国内源。{ "registry-mirrors": [ "https://docker.m.daocloud.io", "https://docker.imgdb.de", "https://docker-0.unsee.tech", "https://docker.hlmirror.com", "https://cjie.eu.org" ] }3.重启Dockersudo systemctl daemon-reload sudo systemctl restart dockerDocker compose 升级为 V2方法一、通过APT进行升级sudo apt-get update sudo apt-get install docker-compose-plugin docker compose version方法二：手动下载二进制文件（适用于特定版本需求）1.下载最新版本的二进制文件： （当前建议根据 GitHub Release 确认版本号，以下以 v2.26.1 为例）sudo DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker} sudo mkdir -p $DOCKER_CONFIG/cli-plugins sudo curl -SL https://github.com/docker/compose/releases/download/v2.26.1/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose2.赋予执行权限：sudo chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose3.验证：sudo docker compose version方法三： 有的时候方法二会失效找不到命令执行：mkdir -p /usr/local/lib/docker/cli-plugins下载：curl -SL https://github.com/docker/compose/releases/download/v2.26.1/docker-compose-linux-x86_64 \ -o /usr/local/lib/docker/cli-plugins/docker-compose授权：chmod +x /usr/local/lib/docker/cli-plugins/docker-compose测试：docker compose version

Ubuntu 22 搭建 Mailcow Mailcow 安装部署一、环境信息Github 开源的邮箱系统，项目地址 Mailcow, 可进行 Docker 部署。我当时的Docker版本: Docker version 26.1.3, build 26.1.3-0ubuntu1~20.04.1二、安装部署拉取 Mailcowsudo git clone https://github.com/mailcow/mailcow-dockerized.git解压sudo unzip mailcow-dockerized-master.zip部署cd mailcow-dockerized-master sudo chmod -R 755 ./* sudo ./generate_config.shPS: 如果报错:Error: Cannot find command 'jq'. Cannot proceed. Solution: Please review system requirements and install requirements. Then, re-run the script. See System Requirements: https://docs.mailcow.email/getstarted/install/ Exiting...解决办法就是安装jqsudo apt update sudo apt install -y jq配置执行脚本后会填写配置信息：有域名最好写域名,比如: mail.alanni.netMail server hostname (FQDN) - this is not your mail domain, but your mail servers hostname: 127.0.0.1这里我写的本地IP地址，是因为后面我要配置 Nginx反代所以不写域名了。设置亚洲时区:Timezone [America/Los_Angeles]: Asia/Shanghai选择版本：Choose the Branch with it's number [1/2/3] 11.是稳定版本 2. 是测试版本 3.不知道到这会询问是否开启ipv6:/etc/docker/daemon.json not found. Create it with IPv6 settings? [Y/n] n如果你的系统服务器支持 ipv6 那么就会出现如下问题: User declined to create daemon.json – please manually merge the docker daemon with these configs: 那么你就要强制关闭IPV6了。配置：sudo vim /etc/docker/daemon.json写入如下内容:{ "ipv6": true, "fixed-cidr-v6": "fd00:dead:beef:c0::/64", "experimental": true, "ip6tables": true }然后重启 dockersudo systemctl restart dockerdocker 运行sudo docker compose pull sudo docker compose up -d如果遇到了sudo docker-compose up -d /usr/local/bin/docker-compose: 1: Not: not found但是你有安装 docker-compose 那么是你的版本不对，需要 V2 版本。升级 Docker-compose最快捷最方便的方法就是下载到本地上传到VPS上https://github.com/docker/compose/releases/download/v2.40.2/docker-compose-linux-x86_64执行sudo mv docker-compose-linux-x86_64 /usr/local/bin/docker-compose sudo chmod +x /usr/local/bin/docker-compose docker-compose version最后sudo docker-compose up -d创建发件邮箱, 如果步骤在: E-Mail -> configuration -> Mail boxes -> add mailbox 即可正常使用。