我无法连接到同一个networking中的另一个容器。
docker run --rm --name spaceship --net lonelyisland --expose 8080 -p 8080:8080 --ip 172.18.0.8 quay.io/ahoi/spaceship:latest target/release/spaceship
根据我的理解， -p是不必要的，– --expose对于Dockerfile给出的是Dockerfile 。
该应用程序工作得很好，没有docker，所以它必须是一个docker（networking）相关的东西。
基于curl的testing的过程如下：
docker run --rm -it --name "curl-test" --net lonelyisland fedora:latest /bin/bash
test-curl设置
[root@52ac28b36b93 /]# dnf install iproute iputils Fedora 24 - x86_64 54 MB/s | 47 MB 00:00 Fedora 24 - x86_64 - Updates 54 MB/s | 21 MB 00:00 Last metadata expiration check: 0:00:12 ago on Fri Feb 24 06:19:26 2017. Dependencies resolved. ============================================================================================== Package Arch Version Repository Size ============================================================================================== Installing: iproute x86_64 4.4.0-3.fc24 fedora 658 k iputils x86_64 20160308-3.fc24 updates 157 k linux-atm-libs x86_64 2.5.1-14.fc24 fedora 40 k Transaction Summary ============================================================================================== Install 3 Packages Total download size: 854 k Installed size: 1.9 M Is this ok [y/N]: y Downloading Packages: (1/3): linux-atm-libs-2.5.1-14.fc24.x86_64.rpm 4.1 MB/s | 40 kB 00:00 (2/3): iputils-20160308-3.fc24.x86_64.rpm 12 MB/s | 157 kB 00:00 (3/3): iproute-4.4.0-3.fc24.x86_64.rpm 22 MB/s | 658 kB 00:00 ---------------------------------------------------------------------------------------------- Total 752 kB/s | 854 kB 00:01 Running transaction check Transaction check succeeded. Running transaction test Transaction test succeeded. Running transaction Installing : linux-atm-libs-2.5.1-14.fc24.x86_64 1/3 Installing : iproute-4.4.0-3.fc24.x86_64 2/3 Installing : iputils-20160308-3.fc24.x86_64 3/3 Failed to connect to bus: No such file or directory Verifying : iproute-4.4.0-3.fc24.x86_64 1/3 Verifying : linux-atm-libs-2.5.1-14.fc24.x86_64 2/3 Verifying : iputils-20160308-3.fc24.x86_64 3/3 Installed: iproute.x86_64 4.4.0-3.fc24 iputils.x86_64 20160308-3.fc24 linux-atm-libs.x86_64 2.5.1-14.fc24 Complete!
确认我们有正确的IP子网乐趣：
[root@52ac28b36b93 /]# ip addr show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1 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 inet6 ::1/128 scope host valid_lft forever preferred_lft forever 35: eth0@if36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 02:42:ac:12:00:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 172.18.0.3/16 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::42:acff:fe12:3/64 scope link valid_lft forever preferred_lft forever
对于第一次尝试，我忘了启动容器
[root@52ac28b36b93 /]# curl -v 172.18.0.8:8080/ * Trying 172.18.0.8... * connect to 172.18.0.8 port 8080 failed: No route to host * Failed to connect to 172.18.0.8 port 8080: No route to host * Closing connection 0 curl: (7) Failed to connect to 172.18.0.8 port 8080: No route to host
在这里，我想连接的容器已经启动，正在运行， 这是我面临的实际问题
[root@52ac28b36b93 /]# curl -v 172.18.0.8:8080/ * Trying 172.18.0.8... * connect to 172.18.0.8 port 8080 failed: Connection refused * Failed to connect to 172.18.0.8 port 8080: Connection refused * Closing connection 0 curl: (7) Failed to connect to 172.18.0.8 port 8080: Connection refused [root@52ac28b36b93 /]#
networking看起来像这样：
docker network inspect lonelyisland [ { "Name": "lonelyisland", "Id": "2bab66f7ba770cc4866afe1322ebf82985b078c614404333119bb54c5535b444", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "172.18.0.0/16", "Gateway": "172.18.0.1" } ] }, "Internal": false, "Containers": { "1c2522ee9f06ec1d20a827ac0d8f2037081d0b7d25008057d016d0d1ba31b24c": { "Name": "spaceship", "EndpointID": "d18eaf2141c60e683e73967674c8d4f701793d9143480c5ad40c151be4464024", "MacAddress": "02:42:ac:12:00:08", "IPv4Address": "172.18.0.8/16", "IPv6Address": "" }, "82cc532808d815236b638448a0c4b00c1dae44570d36837e314d5d6b05a7ff22": { "Name": "curl-test", "EndpointID": "cfd4a8e203980a6a848938a021d04631ade8d3724dc0af5f9027096bf894e0fb", "MacAddress": "02:42:ac:12:00:03", "IPv4Address": "172.18.0.3/16", "IPv6Address": "" } }, "Options": { "com.docker.network.bridge.enable_icc": "true", "com.docker.network.bridge.enable_ip_masquerade": "true" }, "Labels": {} } ]
docker工人创build了iptables
sudo iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination DOCKER-ISOLATION all -- anywhere anywhere DOCKER all -- anywhere anywhere ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere anywhere DOCKER all -- anywhere anywhere ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain DOCKER (2 references) target prot opt source destination ACCEPT tcp -- anywhere 172.18.0.8 tcp dpt:http-alt Chain DOCKER-ISOLATION (1 references) target prot opt source destination DROP all -- anywhere anywhere DROP all -- anywhere anywhere RETURN all -- anywhere anywhere
任何提示/想法？
于是我开始一层一层的挖掘，最终成为了fedora:24的基础映像fedora:24我用bash shell进入容器，启动应用程序并从那里运行。 它也没有工作或者由于一些奇怪的原因，该应用程序不能在该容器中工作，我尝试了一个不同的基础镜像（当前版本的git）。 它工作得很好。 所以上面的东西都很好。