Docker网络类型

一、Bridge：Docker设计的NAT网络模型

[root@docker01 ~]# docker inspect 406176e03088
 "Networks": {
                "bridge": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "9293d42ff7a1d0a9a7af78e8e7ad5cf3e68238e519634049493961f7c31d2867",
                    "EndpointID": "",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "",
                    "DriverOpts": null
                }
            }

二、None：不为容器配置任何网络功能，--network=none

[root@docker01 ~]# docker run --network=none  -d centos:6.9 /bin/bash
a71d2cfeb44f8d99fc2e6b6d9e4da464e793be054cf58be14d90c4f7c8b99db7
[root@docker01 ~]# docker inspect a71d2cfeb44f8d99
"Networks": {
                "none": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "d56a2a4c06f01696cedd5e5e4e5440861d2f7c74a39d5b20603b7c19f7e5498d",
                    "EndpointID": "",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "",
                    "DriverOpts": null
                }
            }

三、Container：与另一个运行中的容器共享Network Namespace，--network container:containerID（K8S）

[root@docker01 ~]# docker ps
CONTAINER ID        IMAGE                                  COMMAND                  CREATED             STATUS              PORTS                               NAMES
ad1f8813fd64        zabbix/zabbix-web-nginx-mysql:latest   "/bin/bash /run_zabb…"   20 hours ago        Up 2 hours          0.0.0.0:80->80/tcp, 443/tcp         zabbix_zabbix-web_1
59a9d6956352        zabbix/zabbix-server-mysql:latest      "/bin/bash /run_zabb…"   20 hours ago        Up 2 hours          162/udp, 0.0.0.0:10051->10051/tcp   zabbix_zabbix-server_1
7ffc76444207        zabbix/zabbix-java-gateway:latest      "/bin/bash /run_zabb…"   20 hours ago        Up 2 hours          10052/tcp                           zabbix_zabbix-java-gateway_1
92fb8f4e7e05        mysql:5.7                              "docker-entrypoint.s…"   20 hours ago        Up 2 hours          3306/tcp                            zabbix_mysql-server_1
08f9d46ecf34        registry                               "/entrypoint.sh /etc…"   21 hours ago        Up 2 hours          0.0.0.0:5000->5000/tcp              vigilant_borg
[root@docker01 ~]# docker run --network container:92fb8f4e7e05  -d mysql:5.7 /bin/bash
4d5fcedc32dbb44539638067987c1728db8e8b465143e0c2b524969e1b3037ed
[root@docker01 ~]# docker inspect 4d5fcedc32dbb44
[root@docker01 ~]# docker inspect 4d5fcedc32dbb44|grep -i "network"
            "NetworkMode": "container:92fb8f4e7e05df0d8db4c6435d2c7d2a41c167af8254a61bfc3946d362d1ea5e",
        "NetworkSettings": {
            "Networks": {}

四、Host：与宿主机共享Network Namespace，--network=host

[root@docker01 ~]# docker run --network=host -d centos:6.9 /bin/bash
785882a5374e23fe029ac87a954456930a0edd4c2d74ed255a74f7adb1aaaefd
[root@docker01 ~]# docker inspect 785882a5374e23fe029
"Networks": {
                "host": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "44572bd2bfa3d55ad0040c6478be9104da75d4ad4e7e76cc2c442bbabc97ee53",
                    "EndpointID": "",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "",
                    "DriverOpts": null
                }
            }