我有一个简单的docker-compose设置如下。
version: "3"
services:
main:
image: python:3.5.2
entrypoint: /usr/bin/yes
network_mode: bridge
another:
image: python:3.5.2
entrypoint: /usr/bin/yes
network_mode: bridge
如果我运行并尝试ping另一个容器,我会得到以下输出。
$ docker-compose up -d
Recreating dockerplayground_main_1 ...
Recreating dockerplayground_another_1 ... done
$ docker-compose ps
Name Command State Ports
---------------------------------------------------------
dockerplayground_another_1 /usr/bin/yes Up
dockerplayground_main_1 /usr/bin/yes Up
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3b256d98bf2c python:3.5.2 "/usr/bin/yes" 7 seconds ago Up 6 seconds dockerplayground_another_1
dfc04a452547 python:3.5.2 "/usr/bin/yes" 7 seconds ago Up 6 seconds dockerplayground_main_1
$ docker exec -it 3b256d98bf2c ping dfc04a452547
ping: unknown host
$ docker exec -it 3b256d98bf2c ping main
ping: unknown host
$ docker exec -it 3b256d98bf2c ping another
ping: unknown host
$ docker exec -it 3b256d98bf2c ping dockerplayground_another_1
ping: unknown host
$ docker exec -it 3b256d98bf2c ping dockerplayground_main_1
ping: unknown host
如果我通过docker network inspect bridge
搜索容器的IP地址,我可以使用它来ping如下。
$ docker exec -it 3b256d98bf2c ping 172.17.0.2
PING 172.17.0.2 (172.17.0.2): 56 data bytes
64 bytes from 172.17.0.2: icmp_seq=0 ttl=64 time=0.076 ms
64 bytes from 172.17.0.2: icmp_seq=1 ttl=64 time=0.077 ms
64 bytes from 172.17.0.2: icmp_seq=2 ttl=64 time=0.046 ms
但是,我想通过容器的主机名做同样的事情。我的docker,docker-compose和OS版本如下。
$ docker --version
Docker version 17.12.0-ce, build c97c6d6
$ docker-compose --version
docker-compose version 1.18.0, build 8dd22a9
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial
答案 0 :(得分:7)
对tgogos的信任:我只需要使用非默认桥。
为了完整性,这是我的工作配置。
version: "3"
services:
main:
networks:
test:
image: python:3.5.2
entrypoint: /usr/bin/yes
another:
networks:
test:
image: python:3.5.2
entrypoint: /usr/bin/yes
networks:
test:
driver: bridge
现在ping了。
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
faa9f96d46a9 python:3.5.2 "/usr/bin/yes" 9 seconds ago Up 9 seconds dockerplayground_main_1
5b2d56ac0cd7 python:3.5.2 "/usr/bin/yes" 9 seconds ago Up 8 seconds dockerplayground_another_1
$ docker exec -it faa ping another
PING another (172.18.0.2): 56 data bytes
64 bytes from 172.18.0.2: icmp_seq=0 ttl=64 time=0.054 ms
64 bytes from 172.18.0.2: icmp_seq=1 ttl=64 time=0.047 ms
64 bytes from 172.18.0.2: icmp_seq=2 ttl=64 time=0.059 ms
64 bytes from 172.18.0.2: icmp_seq=3 ttl=64 time=0.066 ms
答案 1 :(得分:3)
从您的撰写文件中删除此C:\Program Files\Java\jdk1.8.0_161\jre
,为我工作=)。
答案 2 :(得分:1)
我尝试和工作过的另一个解决方案是将要ping的包含项与主机名显式链接。例如,我有一个 $http({
method : "POST",
url : "/searchFor",
data: {item: sI, dID: searchID}
}).then(function(response){
if(response.data.length > 0 || response.data != 'undefined'){
$("#sidebar").css({pointerEvents: "none"});
$("#default").css({pointerEvents: "none"});
$scope.displayResults = true;
$scope.sItems = [];
for(let i = 0; i < response.data.length; i++){
$scope.sItems[i] = response.data[i];
}
window.setTimeout(function(){
$("#closeMenuS").click(function(){
$scope.displayResults = false;
$("#sidebar").css({pointerEvents: "auto"});
$("#default").css({pointerEvents: "auto"});
});
}, 30);
}
}, function myError(response) {
$scope.myWelcome = response.statusText;
});
容器,一个postgres
想要连接到它。
使用以下命令运行server
server
然后在服务器容器环境中,您可以ping(假设docker run --name server --link postgres someserver:latest
在同一网桥/网络上并且正在运行)
postgres
自ping postgres
起已被弃用,建议使用网桥。
--link
这两个容器可以按名称相互ping通。