050、创建overlay网络（2019-03-15 周五）-白红宇

050、创建overlay网络（2019-03-15 周五）

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发布时间：2019-06-26

本文共 1899 字，大约阅读时间需要 6 分钟。

参考

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": {} 
          } 
      ] 