docker 分离engine和client

背景

由于我个人电脑是2020款m1，16G，256G。一方面，平时除了运行多个浏览器，还有coding 编辑器等等，内存确实很紧张。其次呢，m1 是ARM的架构，所以构建的镜像是无法在X86的机器上运行的。所以我尝试将docker引擎和client分开。

第一步：下载二进制docker 客户端文件

二进制client下载链接：传送门

如果是苹果选择aarch64，进去后选择版本(我选择的是最新版本)

第二步：安装docker

注意：

1、除了要安装docker以外，还需要开启api端口，因为客户端需要和服务端通过远程端口进行通信

2、个人安装的最新版本

3、注意开启2375端口，确保能telnet通

docker安装文档：传送门

配置远程端口：

Docker 启动文件添加-H tcp://0.0.0.0:2375

vim /usr/lib/systemd/system/docker.service 

··· [Unit] Description=Docker Application Container Engine Documentation=https://docs.docker.com After=network-online.target docker.socket firewalld.service containerd.service time-set.target Wants=network-online.target containerd.service Requires=docker.socket  [Service] Type=notify # the default is not to use systemd for cgroups because the delegate issues still # exists and systemd currently does not support the cgroup feature set required # for containers run by docker # ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock ### 注意这里,我复制了一行 ExecStart=/usr/bin/dockerd -H fd:// -H tcp://0.0.0.0:2375 --containerd=/run/containerd/containerd.sock ExecReload=/bin/kill -s HUP $MAINPID TimeoutStartSec=0 RestartSec=2 Restart=always  # Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229. # Both the old, and new location are accepted by systemd 229 and up, so using the old location # to make them work for either version of systemd. StartLimitBurst=3  # Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230. # Both the old, and new name are accepted by systemd 230 and up, so using the old name to make # this option work for either version of systemd. StartLimitInterval=60s ··· 

第三步：解压并添加环境变量

解压文件后如下：

添加环境变量

注意：
使用$PATH 命令查看环境变量

# 查看环境变量 $PATH 

/Users/lanjx/opt/anaconda3/bin:/Users/lanjx/.nvm/versions/node/v16.18.0/bin:....太长了，忽略 

# 将图中文件解压到环境变量对应的目录中 sudo cp DownLoads/docker/docker /usr/local/sbin/ sudo chmod +x /usr/local/sbin/docker 

# 添加环境变量 vim .zshrc 

# 将下面一句添加到文件末尾 ... export DOCKER_HOST=tcp://192.168.0.1:2375 

修改文件

vim ~/.docker/config.json 

{         "auths": {                                  "docker.e6gpshk.com:8443": {}         },         "credsStore": "desktop",                 "currentContext": "default",   			// 添加了下面这一行         "hosts": ["tcp://192.168.0.1:2375"] } 

第四步：测试

到这里基本上已经差不多了，剩下的就是补全剩余的组件即可

docker info 

Client:  Version:    24.0.7  Context:    default  Debug Mode: false  Plugins: WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-buildx" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-buildx: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-compose" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-compose: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-dev" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-dev: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-extension" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-extension: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-init" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-init: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-sbom" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-sbom: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-scan" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-scan: no such file or directory WARNING: Plugin "/Users/lanjx/.docker/cli-plugins/docker-scout" is not valid: failed to fetch metadata: fork/exec /Users/lanjx/.docker/cli-plugins/docker-scout: no such file or directory  Server:  Containers: 2   Running: 0   Paused: 0   Stopped: 2  Images: 0  Server Version: 24.0.6  Storage Driver: overlay2   Backing Filesystem: extfs   Supports d_type: true   Using metacopy: false   Native Overlay Diff: true   userxattr: false  Logging Driver: json-file  Cgroup Driver: cgroupfs  Cgroup Version: 1  Plugins:   Volume: local   Network: bridge host ipvlan macvlan null overlay   Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog  Swarm: inactive  Runtimes: io.containerd.runc.v2 runc  Default Runtime: runc  Init Binary: docker-init  containerd version: 61f9fd88f79f081d64d6fa3bb1a0dc71ec870523  runc version: v1.1.9-0-gccaecfc  init version: de40ad0  Security Options:   seccomp    Profile: builtin  Kernel Version: 3.10.0-1160.80.1.el7.x86_64  Operating System: CentOS Linux 7 (Core)  OSType: linux  Architecture: x86_64  CPUs: 8  Total Memory: 15.49GiB  Name: localhost.localdomain  ID: 1e789c39-61f4-4269-8616-47944d1865cb  Docker Root Dir: /data/docker  Debug Mode: false  Experimental: false  Insecure Registries:   127.0.0.0/8  Registry Mirrors:   https://registry.docker-cn.com/   https://docker.mirrors.ustc.edu.cn/  Live Restore Enabled: false  WARNING: API is accessible on http://0.0.0.0:2375 without encryption.          Access to the remote API is equivalent to root access on the host. Refer          to the 'Docker daemon attack surface' section in the documentation for          more information: https://docs.docker.com/go/attack-surface/