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因为工作的需要，需要把docker 启动后的路径改成/data,所以就会用到:/etc/docker/daemon.json 是 docker 的配置文件，默认是没有的，需要我们手动创建，可配置项如下：
具体的操作是：
1: 设置/etc/docker/daemon.json 文件.
2.创建并修改完daemon.json文件后，需要让这个文件生效
a.修改完成后reload配置文件
sudo systemctl daemon-reload
b.重启docker服务
sudo systemctl restart docker.service
c.查看状态
sudo systemctl status docker -l
d.查看服务
sudo docker info
[root@localhost ~]$ vim /etc/docker/daemon.json
{
? ? "authorization-plugins": [],
? ? "data-root": "", ? # 设置docker运行时的根目录
? ? "dns": [], ? ? ? ? # 设置容器的DNS地址
? ? "dns-opts": [], ? ?# 设置容器的/etc/resolv.conf文件
? ? "dns-search": [],
? ? "exec-opts": [],
? ? "exec-root": "",
? ? "experimental": false,
? ? "features": {},
? ? "storage-driver": "",
? ? "storage-opts": [],
? ? "labels": [],
? ? "live-restore": true,
? ? "log-driver": "json-file",
? ? "log-opts": {
? ? ? ? "max-size": "10m",
? ? ? ? "max-files":"5",
? ? ? ? "labels": "somelabel",
? ? ? ? "env": "os,customer"
? ? },
? ? "mtu": 0,
? ? "pidfile": "", ? ?# 设置docker守护进程的PID文件
? ? "cluster-store": "",?
? ? "cluster-store-opts": {},
? ? "cluster-advertise": "",
? ? "max-concurrent-downloads": 3,
? ? "max-concurrent-uploads": 5,
? ? "default-shm-size": "64M",
? ? "shutdown-timeout": 15,
? ? "debug": true, ? ?# 是否以debug模式启动docker
? ? "hosts": [], ? ? ?# 设置容器的hosts
? ? "log-level": "",
? ? "tls": true,
? ? "tlsverify": true,
? ? "tlscacert": "",
? ? "tlscert": "",
? ? "tlskey": "",
? ? "swarm-default-advertise-addr": "",
? ? "api-cors-header": "",
? ? "selinux-enabled": false, ? ?# 设置是否支持SELinux
? ? "userns-remap": "",
? ? "group": "",
? ? "cgroup-parent": "",
? ? "default-ulimits": {
? ? ? ? "nofile": {
? ? ? ? ? ? "Name": "nofile",
? ? ? ? ? ? "Hard": 64000,
? ? ? ? ? ? "Soft": 64000
? ? ? ? }
? ? },
? ? "init": false,
? ? "init-path": "/usr/libexec/docker-init",
? ? "ipv6": false,
? ? "iptables": false,
? ? "ip-forward": false, ? ?
? ? "ip-masq": false,
? ? "userland-proxy": false,
? ? "userland-proxy-path": "/usr/libexec/docker-proxy",
? ? "ip": "0.0.0.0",
? ? "bridge": "",
? ? "bip": "",
? ? "fixed-cidr": "",
? ? "fixed-cidr-v6": "",
? ? "default-gateway": "",
? ? "default-gateway-v6": "",
? ? "icc": false,
? ? "raw-logs": false,
? ? "allow-nondistributable-artifacts": [],
? ? "registry-mirrors": [], ? ? ? # 设置镜像加速地址
? ? "seccomp-profile": "",
? ? "insecure-registries": [], ? ?# 设置docker的私有仓库地址
? ? "no-new-privileges": false,
? ? "default-runtime": "runc",
? ? "oom-score-adjust": -500,
? ? "node-generic-resources": ["NVIDIA-GPU=UUID1", "NVIDIA-GPU=UUID2"],
? ? "runtimes": {
? ? ? ? "cc-runtime": {
? ? ? ? ? ? "path": "/usr/bin/cc-runtime"
? ? ? ? },
? ? ? ? "custom": {
? ? ? ? ? ? "path": "/usr/local/bin/my-runc-replacement",
? ? ? ? ? ? "runtimeArgs": [
? ? ? ? ? ? ? ? "--debug"
? ? ? ? ? ? ]
? ? ? ? }
? ? },
? ? "default-address-pools":[{"base":"172.80.0.0/16","size":24},
? ? {"base":"172.90.0.0/16","size":24}]
}
更多参数配置：?docker配置参数详解---/etc/docker/daemon.json完整参数_一个单纯的程序员的博客-CSDN博客
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