docker-compose dns docker-compose dns设置

 

docker-compose 搭建dns服务

这边选择的是带图像化界面的开源软件 adguardhome 快速搭建dns服务

安装docker-compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

编写docker-compose.yml

version: "3"
services:
 adguardhome:
    image: adguard/adguardhome:latest
    container_name: adguard
    hostname: localhost # set to fqdn of host
    ports:
      - 53:53/tcp
      - 53:53/udp
      - 67:67
      - 68:68
      - 3000:3000
      - 853:853
      - 80:80
    volumes:
      - ./services/dns/workdir:/opt/adguardhome/work
      - ./services/dns/confdir:/opt/adguardhome/conf
    environment:
        TZ: "Asia/Shanghai"
    networks:
      - default

启动容器

[root@DNS dns]# vim docker-compose.yml
[root@DNS dns]# docker-compose up -d
Recreating adguard ... done
[root@DNS dns]# docker ps 
CONTAINER ID        IMAGE                        COMMAND                  CREATED             STATUS              PORTS                                                                                                                                        NAMES
db769cda4cf7        adguard/adguardhome:latest   "/opt/adguardhome/Ad…"   3 seconds ago       Up 2 seconds        0.0.0.0:53->53/tcp, 80/tcp, 0.0.0.0:67-68->67-68/tcp, 0.0.0.0:853->853/tcp, 0.0.0.0:3000->3000/tcp, 0.0.0.0:53->53/udp, 67-68/udp, 443/tcp   adguard

配置图形化界面

adguard的详细使用方法可以看官网文档，这里只是用dns重写功能

修改dns

在master和worker上修改dns,这里使用过的是network manager修改

[root@master conf.d]# nmtui    
[root@master conf.d]# /etc/init.d/network restart
Restarting network (via systemctl):                        [  OK  ]

验证

在没有改host 的情况下，ping ping master.com 是出的局域网ip，证明dns生效

[root@worker01 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
[root@worker01 ~]# ping master.com
PING master.com (192.168.189.128) 56(84) bytes of data.
64 bytes from 192.168.189.128 (192.168.189.128): icmp_seq=1 ttl=64 time=0.233 ms

[root@master conf.d]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
[root@master conf.d]# ping node1.com
PING node1.com (192.168.189.129) 56(84) bytes of data.
64 bytes from 192.168.189.129 (192.168.189.129): icmp_seq=1 ttl=64 time=0.241 ms
64 bytes from 192.168.189.129 (192.168.189.129): icmp_seq=2 ttl=64 time=0.487 ms