在 Vultr CentOS8 上安装 Docker（完整版）

虽然算是接着写上面的内容……不过我就只把命令写下来吧。\ 简单来说，如果要在 Vultr 的 CentOS8 上安装 Docker 并启动服务，只要看着这里操作就行了。 ``` sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo ``` ``` sudo dnf repolist -v sudo dnf update ``` ``` sudo dnf install docker-ce --nobest docker -v systemctl enable docker ``` ``` curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose docker-compose --version ``` ``` systemctl daemon-reload systemctl restart docker docker info ``` ``` docker run --dns 8.8.8.8 busybox nslookup google.com docker run busybox nslookup google.com nslookup: write to '108.61.10.10': No route to host ;; connection timed out; no servers could be reached ``` ``` docker network create frontend docker network create backend ``` ``` ifconfig br-91b6f0ce06ff: flags=4099 mtu 1500 inet 172.19.0.1 netmask 255.255.0.0 broadcast 172.19.255.255 ether 02:42:fd:cb:c5:6e txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 br-de3921a50a52: flags=4099 mtu 1500 inet 172.18.0.1 netmask 255.255.0.0 broadcast 172.18.255.255 ether 02:42:68:72:5c:0c txqueuelen 0 (Ethernet) RX packets 70967 bytes 219139773 (208.9 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 48535 bytes 5113144 (4.8 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 docker0: flags=4099 mtu 1500 inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255 inet6 fe80::42:8fff:fed3:d5b6 prefixlen 64 scopeid 0x20 ether 02:42:8f:d3:d5:b6 txqueuelen 0 (Ethernet) RX packets 4 bytes 196 (196.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 10 bytes 852 (852.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ``` ``` firewall-cmd --list-all-zones ``` ``` firewall-cmd --permanent --zone=trusted --add-interface=docker0 firewall-cmd --permanent --zone=trusted --add-interface=br-91b6f0ce06ff firewall-cmd --permanent --zone=trusted --add-interface=br-de3921a50a52 firewall-cmd --reload ``` ``` systemctl restart docker docker run busybox nslookup google.com ``` 这样一来……Docker 的安装和配置就算完成了。（可以记录外部访问 IP） 接下来……上传 Docker 之后……输入命令就可以了…… ``` docker-compose up -d --build ``` 像这样……构建时如果发生 **composer proc_open()** 错误， ``` 스왑생성 free -m /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024 /sbin/mkswap /var/swap.1 /sbin/swapon /var/swap.1 스왑삭제 swapoff /var/swap.1 rm -f /var/swap.1 ``` 如果使用 docker-compose 创建了容器， ``` docker exec -it 69ee26a7c0d4 /bin/bash ``` ``` composer dump-autoload --optimize chgrp -R www-data storage bootstrap/cache chmod -R ug+rwx storage bootstrap/cache php artisan optimize php artisan optimze:clear ``` 结束。

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