上一个实验：非加密的形式在企业中是不被允许的。
示例：【为****Registry 提供加密传输】
因为传输也是https，所以与ssh一样的加密。
这种方式就不用写这个了。
root@docker \~\]# cat /etc/docker/daemon.json #{ # "insecure-registries" : \["http://172.25.254.5:5000"
#}
root@docker \~\]# systemctl restart docker Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xeu docker.service" for details. \[root@docker \~\]# \[root@docker \~\]# docker ps Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? \[root@docker \~\]# docker status docker docker: 'status' is not a docker command. See 'docker --help' \[root@docker \~\]# \[root@docker \~\]# systemctl status docker × docker.service - Docker Application Container Engine Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset:\> Active: failed # 重启时遇到报错，停止后重启又好了 \[root@docker \~\]# systemctl stop docker \[root@docker \~\]# systemctl restart docker \[root@docker \~\]# ## 加密 # 生成认证 key 和证书 #建立目录，在目录里建立生成加密文件 # 必须要有解析，不然用不了； \[root@docker \~\]# mkdir certs \[root@docker \~\]# \[root@docker \~\]# vim /etc/hosts \[root@docker \~\]# tail -n 1 /etc/hosts 172.25.254.5 reg.folian.org #仓库名为 reg.folian.org \[root@docker \~\]# openssl req -newkey rsa:4096 \\ \> -nodes -sha256 -keyout certs/folian.org.key \\ \> -addext "subjectAltName = DNS:reg.folian.org" \\ \> -x509 -days 365 -out certs/folian.org.crt  # 生成了证书和key \[root@docker \~\]# ls certs/ folian.org.crt folian.org.key \[root@docker \~\]# # 建立仓库 \[root@docker \~\]# docker run -d -p 443:443 --restart=always \\ \> -v /root/certs:/certs \\ #表示把本机的目录挂载到镜像的哪个目录下 \> -e REGISTRY_HTTP_ADDR=0.0.0.0:443 \\ # 监控端口443 \> -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/folian.org.crt \\ \> -e REGISTRY_HTTP_TLS_KEY=/certs/folian.org.key registry   ## 现在还进行不了镜像推送 # 建立：与仓库名一样 \[root@docker \~\]# mkdir -p /etc/docker/certs.d/reg.folian.org \[root@docker \~\]# cp /root/certs/folian.org.crt /etc/docker/certs.d/reg.folian.org/ca.crt \[root@docker \~\]# ls /etc/docker/certs.d/reg.folian.org/ca.crt /etc/docker/certs.d/reg.folian.org/ca.crt \[root@docker \~\]# systemctl restart docker # 推镜像 \[root@docker \~\]# docker tag nginx:v2 reg.folian.org/nginx:v2 \[root@docker \~\]# docker push reg.folian.org/nginx:v2 The push refers to repository \[reg.folian.org/nginx
54a2c5fcea1c: Pushed
a8df99e45168: Pushed
174f56854903: Pushed
v2: digest: sha256:2d45824da0f28c4087c7a2c009cc4dba14efc637fdd8bef91fd49a1dcbda8b8c size: 947
root@docker \~\]# 成功！！ # 如果其他主机想使用这个镜像仓库，也必须得有镜像证书，而且位置必须是这样。