发现是可以ping通的，尝试在tomcat01容器中ping tomcat-tml容器

[root@192 ~]# docker exec -it tomcat01 /bin/bash
root@6cd417097796:/usr/local/tomcat# ip addr 
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
10: eth0@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0
       valid_lft forever preferred_lft forever
root@6cd417097796:/usr/local/tomcat# ping 172.17.0.3
PING 172.17.0.3 (172.17.0.3) 56(84) bytes of data.
64 bytes from 172.17.0.3: icmp_seq=1 ttl=64 time=0.093 ms
64 bytes from 172.17.0.3: icmp_seq=2 ttl=64 time=0.053 ms
64 bytes from 172.17.0.3: icmp_seq=3 ttl=64 time=0.110 ms
64 bytes from 172.17.0.3: icmp_seq=4 ttl=64 time=0.040 ms
64 bytes from 172.17.0.3: icmp_seq=5 ttl=64 time=0.054 ms

可以看到两个容器也是可以连接上的。Docker中的所有的网络接口都是虚拟的。只要容器删除，容器对应的网桥也会删除，我们也可以通过命令查看网络配置：

[root@192 ~]# docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
173795075c5b   bridge    bridge    local
fcddcee8a2d1   host      host      local
9efbda880fae   none      null      local
[root@192 ~]# docker inspect 173795075c5b
[
    {
        "Name": "bridge",
        "Id": "173795075c5b9efa3a03d912c8216dbb0fe59cb14783481646f5b501d8024f0d",
        "Created": "2022-03-05T22:10:16.317130085+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.17.0.0/16",
                    "Gateway": "172.17.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "3e862598e6302f79877216ac6be78d06db434616c8c22f740657dee5510d500d": {
                "Name": "tomcat02",
                "EndpointID": "92675e0156d77199b47a38128947b926276a258b96c0bf5d51917422ae478c6e",
                "MacAddress": "02:42:ac:11:00:04",
                "IPv4Address": "172.17.0.4/16",
                "IPv6Address": ""
            },
            "50b626fc91d2660232e9b299b09d65c232e33cb2ccfcbbc65307fbadf6eb91ef": {
                "Name": "tomcat-tml",
                "EndpointID": "2ed2445572e557a2b9a7b77d021bc04ce0b46f60a79b726a75eb57fbd9cf061d",
                "MacAddress": "02:42:ac:11:00:03",
                "IPv4Address": "172.17.0.3/16",
                "IPv6Address": ""
            },
            "6cd417097796215ffdb1563bb71ba2c500b8e91adb4049880fc0d7f1b366def9": {
                "Name": "tomcat01",
                "EndpointID": "7e48291ddc3bb7e9f1a6ecdaf1a034db0c37df6d3fadfb0ce8336c974cb6e328",
                "MacAddress": "02:42:ac:11:00:02",
                "IPv4Address": "172.17.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {
            "com.docker.network.bridge.default_bridge": "true",
            "com.docker.network.bridge.enable_icc": "true",
            "com.docker.network.bridge.enable_ip_masquerade": "true",
            "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
            "com.docker.network.bridge.name": "docker0",
            "com.docker.network.driver.mtu": "1500"
        },
        "Labels": {}
    }
]
[root@192 ~]#

Docker容器互联

在微服务部署的场景下，注册中心是使用服务名来唯一识别微服务的，而我们上线部署的时候微服务对应的IP地址可能会改动，所以我们需要使用容器名来配置容器间的网络连接。使用–link可以完成这个功能。首先不设置连接的情况下，是无法通过容器名来进行连接的：

[root@192 ~]# docker ps
CONTAINER ID   IMAGE                                    COMMAND                  CREATED          STATUS          PORTS                                         NAMES
6cd417097796   tomcat:8.0                               "catalina.sh run"        16 minutes ago   Up 16 minutes   0.0.0.0:49155->8080/tcp, :::49155->8080/tcp   tomcat01
50b626fc91d2   tianmaolin/tml-mydockerfile-tomcat:1.0   "/bin/sh -c '/usr/lo…"   11 hours ago     Up 11 hours     0.0.0.0:49154->8080/tcp, :::49154->8080/tcp   tomcat-tml
[root@192 ~]# docker exec -it tomcat01 ping 172.17.0.3
PING 172.17.0.3 (172.17.0.3) 56(84) bytes of data.
64 bytes from 172.17.0.3: icmp_seq=1 ttl=64 time=0.111 ms
64 bytes from 172.17.0.3: icmp_seq=2 ttl=64 time=0.117 ms
64 bytes from 172.17.0.3: icmp_seq=3 ttl=64 time=0.049 ms
64 bytes from 172.17.0.3: icmp_seq=4 ttl=64 time=0.042 ms
64 bytes from 172.17.0.3: icmp_seq=5 ttl=64 time=0.060 ms
[root@192 ~]# docker exec -it tomcat01 ping tomcat-tml
ping: unknown host tomcat-tml

接下来我们再创建一个容器tomcat02来连接tomcat01:

[root@192 ~]# docker run -d -P --name tomcat02 --link tomcat01  tomcat:8.0
[root@192 ~]# docker ps
CONTAINER ID   IMAGE                                    COMMAND                  CREATED          STATUS          PORTS                                         NAMES
3e862598e630   tomcat:8.0                               "catalina.sh run"        32 seconds ago   Up 30 seconds   0.0.0.0:49156->8080/tcp, :::49156->8080/tcp   tomcat02
6cd417097796   tomcat:8.0                               "catalina.sh run"        19 minutes ago   Up 19 minutes   0.0.0.0:49155->8080/tcp, :::49155->8080/tcp   tomcat01
50b626fc91d2   tianmaolin/tml-mydockerfile-tomcat:1.0   "/bin/sh -c '/usr/lo…"   11 hours ago     Up 11 hours     0.0.0.0:49154->8080/tcp, :::49154->8080/tcp   tomcat-tml
[root@192 ~]# docker exec -it tomcat02 ping tomcat01
PING tomcat01 (172.17.0.2) 56(84) bytes of data.
64 bytes from tomcat01 (172.17.0.2): icmp_seq=1 ttl=64 time=0.094 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=2 ttl=64 time=0.045 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=3 ttl=64 time=0.043 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=4 ttl=64 time=0.043 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=5 ttl=64 time=0.047 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=6 ttl=64 time=0.087 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=7 ttl=64 time=0.047 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=8 ttl=64 time=0.115 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=9 ttl=64 time=0.048 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=10 ttl=64 time=0.047 ms
64 bytes from tomcat01 (172.17.0.2): icmp_seq=11 ttl=64 time=0.043 ms

但是反过来容器tomcat01通过容器名tomcat01直接ping容器tomcat02是不行的:

[root@192 ~]# docker exec -it tomcat01 ping tomcat02
ping: unknown host tomcat02
[root@192 ~]#

这是因为--link的原理是在指定运行的容器上的/etc/hosts文件中添加容器名和ip地址的映射，如下：

[root@192 ~]# docker exec -it tomcat02 cat /etc/hosts 
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
172.17.0.2      tomcat01 6cd417097796
172.17.0.4      3e862598e630
[root@192 ~]#

而tomcat01容器不能够通过容器名连接tomcat02是因为tomcat01容器中并没有添加容器名tomcat02和ip地址的映射.

[root@192 ~]# docker exec -it tomcat01 cat /etc/hosts
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
172.17.0.2      6cd417097796
[root@192 ~]#

目前–link设置容器互连的方式已经不推荐使用。因为docker0不支持容器名访问，所以更多地选择自定义网络。

自定义网络

因为docker0，默认情况下不能通过容器名进行访问。需要通过–link进行设置连接。这样的操作比较麻烦，更推荐的方式是自定义网络，容器都使用该自定义网络，就可以实现通过容器名来互相访问了

1 docker network相关命令

查看network的相关命令

[root@192 ~]# docker network --help
Usage:  docker network COMMAND
Manage networks
Commands:
  connect     Connect a container to a network
  create      Create a network
  disconnect  Disconnect a container from a network
  inspect     Display detailed information on one or more networks
  ls          List networks
  prune       Remove all unused networks
  rm          Remove one or more networks
Run 'docker network COMMAND --help' for more information on a command.
[root@192 ~]#

查看默认的网络bridge的详细信息：

[root@192 ~]# docker network inspect bridge
[
    {
        "Name": "bridge",
        "Id": "173795075c5b9efa3a03d912c8216dbb0fe59cb14783481646f5b501d8024f0d",
        "Created": "2022-03-05T22:10:16.317130085+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.17.0.0/16",
                    "Gateway": "172.17.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "3e862598e6302f79877216ac6be78d06db434616c8c22f740657dee5510d500d": {
                "Name": "tomcat02",
                "EndpointID": "92675e0156d77199b47a38128947b926276a258b96c0bf5d51917422ae478c6e",
                "MacAddress": "02:42:ac:11:00:04",
                "IPv4Address": "172.17.0.4/16",
                "IPv6Address": ""
            },
            "50b626fc91d2660232e9b299b09d65c232e33cb2ccfcbbc65307fbadf6eb91ef": {
                "Name": "tomcat-tml",
                "EndpointID": "2ed2445572e557a2b9a7b77d021bc04ce0b46f60a79b726a75eb57fbd9cf061d",
                "MacAddress": "02:42:ac:11:00:03",
                "IPv4Address": "172.17.0.3/16",
                "IPv6Address": ""
            },
            "6cd417097796215ffdb1563bb71ba2c500b8e91adb4049880fc0d7f1b366def9": {
                "Name": "tomcat01",
                "EndpointID": "7e48291ddc3bb7e9f1a6ecdaf1a034db0c37df6d3fadfb0ce8336c974cb6e328",
                "MacAddress": "02:42:ac:11:00:02",
                "IPv4Address": "172.17.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {
            "com.docker.network.bridge.default_bridge": "true",
            "com.docker.network.bridge.enable_icc": "true",
            "com.docker.network.bridge.enable_ip_masquerade": "true",
            "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
            "com.docker.network.bridge.name": "docker0",
            "com.docker.network.driver.mtu": "1500"
        },
        "Labels": {}
    }
]
[root@192 ~]#

查看 network create命令的相关参数：

[root@192 ~]# docker network create --help
Usage:  docker network create [OPTIONS] NETWORK
Create a network
Options:
      --attachable           Enable manual container attachment
      --aux-address map      Auxiliary IPv4 or IPv6 addresses used by Network driver (default map[])
      --config-from string   The network from which to copy the configuration
      --config-only          Create a configuration only network
  -d, --driver string        Driver to manage the Network (default "bridge")
      --gateway strings      IPv4 or IPv6 Gateway for the master subnet
      --ingress              Create swarm routing-mesh network
      --internal             Restrict external access to the network
      --ip-range strings     Allocate container ip from a sub-range
      --ipam-driver string   IP Address Management Driver (default "default")
      --ipam-opt map         Set IPAM driver specific options (default map[])
      --ipv6                 Enable IPv6 networking
      --label list           Set metadata on a network
  -o, --opt map              Set driver specific options (default map[])
      --scope string         Control the network's scope
      --subnet strings       Subnet in CIDR format that represents a network segment
[root@192 ~]#

2 自定义一个docker网络

下面自定义一个网络：

docker network create --driver bridge --subnet 192.168.0.0/16 --gateway 192.168.0.1 mynet

其中：

--driver bridge   #指定bridge驱动程序来管理网络
--subnet 192.168.0.0/16 #指定网段的CIDR格式的子网
--gateway 192.168.0.1   #指定主子网的IPv4或IPv6网关

创建后可以看到我们自己创建的网络连接模式：mynet

[root@192 ~]# docker network create --driver bridge --subnet 192.168.0.0/16 --gateway 192.168.0.1 mynet
a2b305685ea4b50d95d9ae9cd6459b5e688ce5a375a263799359c90509cfc217
[root@192 ~]# docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
173795075c5b   bridge    bridge    local
fcddcee8a2d1   host      host      local
a2b305685ea4   mynet     bridge    local
9efbda880fae   none      null      local
[root@192 ~]#

网络mynet创建成功后，查看网络信息：

[root@192 ~]# docker network inspect mynet
[
    {
        "Name": "mynet",
        "Id": "a2b305685ea4b50d95d9ae9cd6459b5e688ce5a375a263799359c90509cfc217",
        "Created": "2022-03-06T11:00:16.666708624+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": {},
            "Config": [
                {
                    "Subnet": "192.168.0.0/16",
                    "Gateway": "192.168.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {},
        "Options": {},
        "Labels": {}
    }
]
[root@192 ~]#

下面启动两个容器，指定使用该自定义网络mynet，测试处于自定义网络下的容器，是否可以直接通过容器名进行网络访问。

[root@192 ~]# docker run -d -P --name tomcat-tml-net-01 --net mynet tomcat:8.0   
b9e24d2619cbca9d6bec360201a2cf0eb5672e556412c8569f1b5a72579b7ea1
[root@192 ~]# docker run -d -P --name tomcat-tml-net-02 --net mynet tomcat:8.0  
650925c833ed134325dd4ead9a30b5a35a87023db01b09fd882c410af5af1db1
[root@192 ~]# docker ps
CONTAINER ID   IMAGE                                    COMMAND                  CREATED          STATUS          PORTS                                         NAMES
650925c833ed   tomcat:8.0                               "catalina.sh run"        4 seconds ago    Up 2 seconds    0.0.0.0:49158->8080/tcp, :::49158->8080/tcp   tomcat-tml-net-02
b9e24d2619cb   tomcat:8.0                               "catalina.sh run"        18 seconds ago   Up 16 seconds   0.0.0.0:49157->8080/tcp, :::49157->8080/tcp   tomcat-tml-net-01
3e862598e630   tomcat:8.0                               "catalina.sh run"        14 minutes ago   Up 14 minutes   0.0.0.0:49156->8080/tcp, :::49156->8080/tcp   tomcat02
6cd417097796   tomcat:8.0                               "catalina.sh run"        34 minutes ago   Up 34 minutes   0.0.0.0:49155->8080/tcp, :::49155->8080/tcp   tomcat01
50b626fc91d2   tianmaolin/tml-mydockerfile-tomcat:1.0   "/bin/sh -c '/usr/lo…"   12 hours ago     Up 12 hours     0.0.0.0:49154->8080/tcp, :::49154->8080/tcp   tomcat-tml
[root@192 ~]# docker network inspect mynet                                     
[
    {
        "Name": "mynet",
        "Id": "a2b305685ea4b50d95d9ae9cd6459b5e688ce5a375a263799359c90509cfc217",
        "Created": "2022-03-06T11:00:16.666708624+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": {},
            "Config": [
                {
                    "Subnet": "192.168.0.0/16",
                    "Gateway": "192.168.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "650925c833ed134325dd4ead9a30b5a35a87023db01b09fd882c410af5af1db1": {
                "Name": "tomcat-tml-net-02",
                "EndpointID": "86507a190d149c320b9456f4588f6408823a79769e4b09579f951f2ed1e49be7",
                "MacAddress": "02:42:c0:a8:00:03",
                "IPv4Address": "192.168.0.3/16",
                "IPv6Address": ""
            },
            "b9e24d2619cbca9d6bec360201a2cf0eb5672e556412c8569f1b5a72579b7ea1": {
                "Name": "tomcat-tml-net-01",
                "EndpointID": "0ba3aa6d85ecafaf260cdc05823f0ab1644e63167654e285125b1107e2f94142",
                "MacAddress": "02:42:c0:a8:00:02",
                "IPv4Address": "192.168.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]
[root@192 ~]#

下面通过容器名来测试容器 tomcat-tml-net-01 和容器 tomcat-tml-net-02之间是否能正常网络通信。

[root@192 ~]# docker exec -it tomcat-tml-net-01 ping tomcat-tml-net-02
PING tomcat-tml-net-02 (192.168.0.3) 56(84) bytes of data.
64 bytes from tomcat-tml-net-02.mynet (192.168.0.3): icmp_seq=1 ttl=64 time=0.049 ms
64 bytes from tomcat-tml-net-02.mynet (192.168.0.3): icmp_seq=2 ttl=64 time=0.108 ms
64 bytes from tomcat-tml-net-02.mynet (192.168.0.3): icmp_seq=3 ttl=64 time=0.048 ms
64 bytes from tomcat-tml-net-02.mynet (192.168.0.3): icmp_seq=4 ttl=64 time=0.110 ms
64 bytes from tomcat-tml-net-02.mynet (192.168.0.3): icmp_seq=5 ttl=64 time=0.082 ms
^C
--- tomcat-tml-net-02 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4000ms
rtt min/avg/max/mdev = 0.048/0.079/0.110/0.028 ms
[root@192 ~]# docker exec -it tomcat-tml-net-02 ping tomcat-tml-net-01
PING tomcat-tml-net-01 (192.168.0.2) 56(84) bytes of data.
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=1 ttl=64 time=0.031 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=2 ttl=64 time=0.106 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=3 ttl=64 time=0.065 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=4 ttl=64 time=0.043 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=5 ttl=64 time=0.044 ms
^C
--- tomcat-tml-net-01 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4001ms
rtt min/avg/max/mdev = 0.031/0.057/0.106/0.028 ms
[root@192 ~]#

可以看到，两个容器通过网络互相可以ping通了，容器之间实现了互联，我们自定义的网络默认已经帮我们维护了容器间的网络通信问题，这是实现网络互联的推荐方式。

Docker网络互联

没有设置的情况下，不同网络间的容器是无法进行网络连接的，就像我们刚刚设置的容器，来自docker0的tomcat01是无法连接来自mynet的tomcat-tml-net-01

[root@192 ~]# docker exec -it tomcat01 ping tomcat-tml-net-01           
ping: unknown host tomcat-tml-net-01
[root@192 ~]#

可以看到是无法网络连接的。不同Docker网络之间的容器需要连接的话需要把作为调用方的容器注册一个ip到被调用方所在的网络上。需要使用docker connect命令。下面设置容器tomcat01连接到mynet网络上。并查看mynet的网络详情，可以看到给容器tomcat01分配了一个ip地址。docker network connect mynet tomcat01 查看：

[root@192 ~]# docker network connect mynet tomcat01
[root@192 ~]# docker exec -it tomcat01 ping tomcat-tml-net-01
PING tomcat-tml-net-01 (192.168.0.2) 56(84) bytes of data.
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=1 ttl=64 time=0.070 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=2 ttl=64 time=0.046 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=3 ttl=64 time=0.051 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=4 ttl=64 time=0.109 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=5 ttl=64 time=0.107 ms
64 bytes from tomcat-tml-net-01.mynet (192.168.0.2): icmp_seq=6 ttl=64 time=0.041 ms
--- tomcat-tml-net-01 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5001ms
rtt min/avg/max/mdev = 0.041/0.070/0.109/0.029 ms

同时我们再看一下mynet，发现tomcat01也在mynet上分配了一个地址：

[root@192 ~]# docker network inspect mynet 
[
    {
        "Name": "mynet",
        "Id": "a2b305685ea4b50d95d9ae9cd6459b5e688ce5a375a263799359c90509cfc217",
        "Created": "2022-03-06T11:00:16.666708624+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": {},
            "Config": [
                {
                    "Subnet": "192.168.0.0/16",
                    "Gateway": "192.168.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "650925c833ed134325dd4ead9a30b5a35a87023db01b09fd882c410af5af1db1": {
                "Name": "tomcat-tml-net-02",
                "EndpointID": "86507a190d149c320b9456f4588f6408823a79769e4b09579f951f2ed1e49be7",
                "MacAddress": "02:42:c0:a8:00:03",
                "IPv4Address": "192.168.0.3/16",
                "IPv6Address": ""
            },
            "6cd417097796215ffdb1563bb71ba2c500b8e91adb4049880fc0d7f1b366def9": {
                "Name": "tomcat01",
                "EndpointID": "9c52ddbfadbca93cb404772ee9e3139c28cd067836a0a9f7fe5786fe98b1b568",
                "MacAddress": "02:42:c0:a8:00:04",
                "IPv4Address": "192.168.0.4/16",
                "IPv6Address": ""
            },
            "b9e24d2619cbca9d6bec360201a2cf0eb5672e556412c8569f1b5a72579b7ea1": {
                "Name": "tomcat-tml-net-01",
                "EndpointID": "0ba3aa6d85ecafaf260cdc05823f0ab1644e63167654e285125b1107e2f94142",
                "MacAddress": "02:42:c0:a8:00:02",
                "IPv4Address": "192.168.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]
[root@192 ~]#

【Docker学习笔记七】深入理解Docker网络配置及微服务部署（中）

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【Docker学习笔记 七】深入理解Docker网络配置及微服务部署（中）

Docker容器互联

自定义网络

1 docker network相关命令

2 自定义一个docker网络

Docker网络互联

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【Docker学习笔记七】深入理解Docker网络配置及微服务部署（中）