050、创建overlay网络（2019-03-15 周五）

参考https://www.cnblogs.com/CloudMan6/p/7280787.html

 

在host01中创建overlay网络 ov_net1

 

在下面的例子中可以看到，我们在host01上创建的overlay类型网络，会自动出现在host02上，该网络的name、id、IPAM都一样

 

这是因为host01将ov_net1的信息存到了consul中，host02从consul读取到了新创建的网络，自动同步到host02上

 

IPAM（IP Address Management）

 

root@host01:~# docker network create -d overlay ov_net1

609020e03ff4ac5fb1aad73e23bfb22bc288463663e5aba775ed06263077c242

root@host01:~# docker network ls

NETWORK ID          NAME                DRIVER              SCOPE

5f1cb3e7ea16        bridge              bridge              local

a08d5e1df638        host                host                local

83f08e15caa8        none                null                local

609020e03ff4        ov_net1             overlay             global

root@host01:~# docker network inspect ov_net1

[

    {

        "Name": "ov_net1",

        "Id": "609020e03ff4ac5fb1aad73e23bfb22bc288463663e5aba775ed06263077c242",

        "Created": "2019-03-15T08:52:44.452192114+08:00",

        "Scope": "global",

        "Driver": "overlay",

        "EnableIPv6": false,

        "IPAM": {

            "Driver": "default",

            "Options": {},

            "Config": [

                {

                    "Subnet": "10.0.0.0/24",

                    "Gateway": "10.0.0.1"

                }

            ]

        },

        "Internal": false,

        "Attachable": false,

        "Ingress": false,

        "ConfigFrom": {

            "Network": ""

        },

        "ConfigOnly": false,

        "Containers": {},

        "Options": {},

        "Labels": {}

    }

]

 

-----------------------------------------------------------------------------------------

 

root@host02:~# docker network ls

NETWORK ID          NAME                DRIVER              SCOPE

6e2bde8f59ac        bridge              bridge              local

54f47d6227e5        host                host                local

042431e6b445        none                null                local

609020e03ff4        ov_net1             overlay             global

root@host02:~# docker network inspect ov_net1

[

    {

        "Name": "ov_net1",

        "Id": "609020e03ff4ac5fb1aad73e23bfb22bc288463663e5aba775ed06263077c242",

        "Created": "2019-03-15T08:52:44.452192114+08:00",

        "Scope": "global",

        "Driver": "overlay",

        "EnableIPv6": false,

        "IPAM": {

            "Driver": "default",

            "Options": {},

            "Config": [

                {

                    "Subnet": "10.0.0.0/24",

                    "Gateway": "10.0.0.1"

                }

            ]

        },

        "Internal": false,

        "Attachable": false,

        "Ingress": false,

        "ConfigFrom": {

            "Network": ""

        },

        "ConfigOnly": false,

        "Containers": {},

        "Options": {},

        "Labels": {}

    }

]