我的容器有以下 Dockerfile:
FROM centos:centos7
# Install software
RUN yum -y update && yum clean all
RUN yum install -y tar gzip wget && yum clean all
# Install io.js
RUN mkdir /root/iojs
RUN wget https://iojs.org/dist/v1.1.0/iojs-v1.1.0-linux-x64.tar.gz
RUN tar -zxvf iojs-v1.1.0-linux-x64.tar.gz -C /root/iojs
RUN rm -f iojs-v1.1.0-linux-x64.tar.gz
# add io.js to path
RUN echo "PATH=$PATH:/root/iojs/iojs-v1.1.0-linux-x64/bin" >> /root/.bashrc
# go to /src
WORKDIR /src
CMD /bin/bash
我构建了这个容器并使用docker run -i -t -p 8080:8080 -v /srv/source:/usr/src/app -w /usr/src/app --rm iojs-dev bash
. Docker 将端口 8080 绑定到主机端口 8080,这样我就可以从我的客户端访问 iojs-application。一切正常。
现在我想用 docker-compose 启动我的容器,使用下面的 docker-compose.yml
webfrontend:
image: iojs-dev
links:
- db
command: bash -c "iojs test.js"
ports:
- "127.0.0.1:8080:8080"
volumes:
- /srv/source:/usr/src/app
- /logs:/logs
db:
image: mariadb
environment:
MYSQL_ROOT_PASSWORD: 12345
当我现在运行时,docker-compose run webfrontend bash
我无法访问主机上的 8080 端口。没有绑定端口。的结果为空,并且端口设置docker ports
的结果也为空:docker inspect
"NetworkSettings": {
"Bridge": "docker0",
"Gateway": "172.17.42.1",
"IPAddress": "172.17.0.51",
"IPPrefixLen": 16,
"MacAddress": "02:42:ac:11:00:33",
"PortMapping": null,
"Ports": {
"8080/tcp": null
}
},
"HostConfig": {
"Binds": [
"/srv/source:/usr/src/app:rw",
"/logs:/logs:rw"
],
"CapAdd": null,
"CapDrop": null,
"ContainerIDFile": "",
"Devices": null,
"Dns": null,
"DnsSearch": null,
"ExtraHosts": null,
"Links": [
"/docker_db_1:/docker_webfrontend_run_34/db",
"/docker_db_1:/docker_webfrontend_run_34/db_1",
"/docker_db_1:/docker_webfrontend_run_34/docker_db_1"
],
"LxcConf": null,
"NetworkMode": "bridge",
"PortBindings": null,
"Privileged": false,
"PublishAllPorts": false,
"RestartPolicy": {
"MaximumRetryCount": 0,
"Name": ""
},
"SecurityOpt": null,
"VolumesFrom": []
},