无法访问任何服务的容器
问题描述:
我创建了一个图像:stavalfi/projecty:latest
这是一个非常基本的java弹簧应用程序。无法访问任何服务的容器
当我运行而不群的容器中,一切工作正常:
docker run -d -p 8081:8080 --name container1 stavalfi/projecty:latest
从铬工作:
http://localhost:8081/
http://172.17.0.2:8080/ <<-- the address of the leader (no other nodes in the swarm)
当我创建使用服务:
docker service create -p 8080:8080 --name service1 stavalfi/projecty:latest
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ab8cb85e9750 stavalfi/projecty:latest "/bin/sh -c '/usr/..." 5 minutes ago Up 5 minutes 0.0.0.0:8081->8080/tcp container1
8928604253ed stavalfi/projecty:latest "/bin/sh -c '/usr/..." 21 minutes ago Up 21 minutes 8080/tcp service1.1.uhpsxn9mke7fkfwpgwke8ugnt
e312e148de87 nginx:latest "nginx -g 'daemon ..." 24 minutes ago Up 24 minutes 80/tcp web.1.zfihms3t4cy3h489srbfgrbw3
我可以ping我的容器,我无法从Chrome访问我的应用程序:
http://localhost:8080/ <<-- no answer
http://10.0.2.15:8080/ <<-- response:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Sat Oct 28 18:24:26 UTC 2017
There was an unexpected error (type=Internal Server Error, status=500).
8928604253ed: 8928604253ed: Name or service not known
http://10.0.2.15:8080/error <<-- response:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Sat Oct 28 18:25:34 UTC 2017
There was an unexpected error (type=None, status=999).
No message available
我还创建nginx的:最新的服务运行:
docker service create -p 80:80 --name web nginx
http://10.0.2.15:80/ <<-- working
http://localhost:80/ <<-- not working
的java的春天启动控制器代码:
@RestController
public class HelloController {
@RequestMapping("/")
@SneakyThrows
public String index() {
String hostname = InetAddress.getLocalHost().getHostName();
return "Hostname: "+hostname+ "! Greetings from Spring Boot!";
}
}
问题:
我该如何访问我的stavalfi/projecty:localhost:8080和10.0.2.15:8080(领导ip)的最新服务?
如何从本地主机:8080访问ngrix服务,而不仅仅是从10.0.2.15:8080(首领ip)访问?
答
我用下面的命令打印运行容器的日志(与stavalfi/projecty:最新的图像):
docker logs <docker container name/id>
我看到我的服务器无法找到自己的主机名,所以他为每个HTTP GET请求压缩。 奇怪的是,当我运行一个服务时,容器ID不会添加到/ etc/hosts文件,但是当我运行一个容器时,containerID被添加到/ etc/hosts文件中。
我很想知道为什么如果有人知道。