docker-compose up with error "Couldn't connect to Docker“
docker-compose up with error "Couldn't connect to Docker“
提问于 2019-10-06 16:57:03
开始学习docker / docker-compose，在学习了一些教程之后，我认为我找到了一个很好的方法。
https://github.com/sprintcube/docker-compose-lamp/tree/master/config/php在安装和准备之后，我做到了：
sudo service docker start和
docker-compose up -d但它失败了，并显示以下消息：
dev@terra-dev:~/Projekte/docker-compose-lamp$ docker-compose up -d
ERROR: Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running?
If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.我必须在哪里定义docker主机？在我的docker-compose文件里？还是别的地方？
关于n00n
更新: sudo服务docker状态的结果：
docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; disabled; vendor preset: enabled)
Active: active (running) since Sun 2019-10-06 13:25:25 CEST; 9s ago
Docs: https://docs.docker.com
Main PID: 2640 (dockerd)
Tasks: 14
CGroup: /system.slice/docker.service
└─2640 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
Okt 06 13:25:24 terra-dev dockerd[2640]: time="2019-10-06T13:25:24.087358085+02:00" level=warning msg="Your kernel does not support cgroup rt period"
Okt 06 13:25:24 terra-dev dockerd[2640]: time="2019-10-06T13:25:24.087381826+02:00" level=warning msg="Your kernel does not support cgroup rt runtime"
Okt 06 13:25:24 terra-dev dockerd[2640]: time="2019-10-06T13:25:24.092676335+02:00" level=info msg="Loading containers: start."
Okt 06 13:25:24 terra-dev dockerd[2640]: time="2019-10-06T13:25:24.732654311+02:00" level=info msg="Default bridge (docker0) is assigned with an IP address 17
Okt 06 13:25:24 terra-dev dockerd[2640]: time="2019-10-06T13:25:24.959702995+02:00" level=info msg="Loading containers: done."
Okt 06 13:25:25 terra-dev dockerd[2640]: time="2019-10-06T13:25:25.020225493+02:00" level=warning msg="failed to retrieve runc version: unknown output format:
Okt 06 13:25:25 terra-dev dockerd[2640]: time="2019-10-06T13:25:25.096346086+02:00" level=info msg="Docker daemon" commit=2d0083d graphdriver(s)=overlay2 vers
Okt 06 13:25:25 terra-dev dockerd[2640]: time="2019-10-06T13:25:25.103672560+02:00" level=info msg="Daemon has completed initialization"
Okt 06 13:25:25 terra-dev dockerd[2640]: time="2019-10-06T13:25:25.148505614+02:00" level=info msg="API listen on /var/run/docker.sock"
Okt 06 13:25:25 terra-dev systemd[1]: Started Docker Application Container Engine.回答 1
Stack Overflow用户
回答已采纳
发布于 2019-10-06 18:28:48
看起来您无法连接到docker守护程序。可能是您没有使用正确的权限，或者Docker守护进程实际上已关闭。
使用以下命令(如果docker守护程序已在运行)：
sudo docker-compose up -d 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/58255721
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