从零开始学docker

查看网卡
docker network ls

[root@localhost ~]# docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
dbf3f90adfca        bridge              bridge              local
eb55ad4563fc        host                host                local
3bd4041e15f4        none                null                local
45e27e5e1669        odc_loki            bridge              local

docker inspect odc_loki

[root@localhost ~]# docker network inspect odc_loki
[
    {
        "Name": "odc_loki",
        "Id": "45e27e5e166966b70d48c65296476ef9e7489cbf953a7f41842d5338f446318a",
        "Created": "2021-07-20T23:00:13.758871072-04:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.18.0.0/16",
                    "Gateway": "172.18.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": true,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "2b17eda54b7edc62f0faa0c275fdb6a38e873b4ec8354488baccd9454ff6db32": {
                "Name": "odc_promtail_1",
                "EndpointID": "775c9a2d204eaac7d4257be8f51494171609b723fecb85bc4695e8a17a9ed6b5",
                "MacAddress": "02:42:ac:12:00:04",
                "IPv4Address": "172.18.0.4/16",
                "IPv6Address": ""
            },
            "41c4d962674047eca9707a5a44c346735dc496b5a931835996c1ec827fd1a3c3": {
                "Name": "odc_loki_1",
                "EndpointID": "1be519f8d6728d945e4d90c800499b221c83eace3a0fd4bc76c50dee7c0cc719",
                "MacAddress": "02:42:ac:12:00:02",
                "IPv4Address": "172.18.0.2/16",
                "IPv6Address": ""
            },
            "c80c31e7153818e6440d67d82fa3981e274423b358a33fcee9e6e1bc759a023f": {
                "Name": "odc_grafana_1",
                "EndpointID": "c34c84badb34da0c92a05b33f4960a4a7ad12f2ade23f59a45259e277dcc5a5c",
                "MacAddress": "02:42:ac:12:00:03",
                "IPv4Address": "172.18.0.3/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {
            "com.docker.compose.network": "loki",
            "com.docker.compose.project": "odc",
            "com.docker.compose.version": "1.26.2"
        }
    }
]

docker 把容器打成镜像

docker commit [容器名称] [镜像名称]

查看内存资源

docker top [容器名]

docker stats [容器名]

工具：github搜索 weaveworks/scope
安装：
1.关闭所在机器防火请
2.安装

sudo curl -L git.io/scope -o /usr/local/bin/scope
sudo chmod a+x /usr/local/bin/scope
scope launch

scope launch ip1 ip2

3.打开web浏览器访问
http://localhost:4040.

二、查看网卡

#windows查看网卡信息
ipconfig
#linux查看网卡信息
ifconfig
ip link show
#查看网卡文件
cd /etc/sysconfig/network-scripts/
#网卡添加IP地址
ip addr add 192.168.0.100/24 dev eth0
#网卡删除IP地址
ip addr delete192.168.0.100/24 dev eth0

#开启关闭网卡
ifup eth0 
ifdown eth0
#网卡namespace创建 
ip netns add ns1
ip netns list
ip netns exec ns1 ip a

成对网卡veth pair 分别给每个namespace

#生成成对的网卡
ip link add  veth-ns1 type veth peer name   veth-ns2
#生成的网卡分派给不同的networknamespace
ip link set veth-ns1 netns ns1
#给命名空间中的网卡添加ip地址
ip netns exec ns1 ip addr add 192.168.8.11/24 dev veth-ns1
#给命名空间中的网卡启动
ip netns exec ns1 ip link set veth-ns1 up 
#查看两个网卡是否能ping通
ip netns exec ns1 ping 192.168.8.12

安装工具查看容器内网卡跟宿主机是成对的

yum install bridge-utils

brctl show