docker run -d --name myname--link toname:alisname -p 本地端口:容器端口 鏡像名稱

docker run -itd --name tomcat01 -p 8100:8080 tomcat:8.5.38

docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' d92f947ea54f

docker run -itd --name nginx01 --link tomcat01 nginx

docker exec -it nginx01 /bin/bash #進入容器內(nèi)部
apt update && apt install -y iproute2 # 安裝ping命令
cat /etc/hosts #查看配置文件
127.0.0.1       localhost
::1     localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.17.0.4      tomcat01 d92f947ea54f
172.17.0.6      70aa4c7dde72

docker exec -it nginx01 ping tomcat01 
PING tomcat01 (172.18.0.2): 56 data bytes
64 bytes from 172.18.0.2: icmp_seq=0 ttl=64 time=0.102 ms
64 bytes from 172.18.0.2: icmp_seq=1 ttl=64 time=0.093 ms
64 bytes from 172.18.0.2: icmp_seq=2 ttl=64 time=0.110 ms
64 bytes from 172.18.0.2: icmp_seq=3 ttl=64 time=0.073 ms