在Ubuntu 16.04上無法通過unix：///var/run/docker.sock連接到Docker守護程序

Question

偶然，我的泊塢窗出了錯，無法啟動。

docker ps給出以下錯誤

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

並且systemctl status docker.service提供以下輸出：

● docker.service - Docker Application Container Engine
   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/docker.service.d
       └─override.conf
   Active: failed (Result: start-limit-hit) since Tue 2018-11-20 18:27:11 PST; 11s ago
 Docs: https://docs.docker.com
  Process: 16519 ExecStart=/usr/bin/dockerd --host=fd:// --add-runtime=nvidia=/usr/bin/nvidia-container-runtime (code=exited, status=1/FAILURE)
 Main PID: 16519 (code=exited, status=1/FAILURE)

Nov 20 18:27:09 loccalhost systemd[1]: Failed to start Docker Application Container Engine.
Nov 20 18:27:09 loccalhost systemd[1]: docker.service: Unit entered failed state.
Nov 20 18:27:09 loccalhost systemd[1]: docker.service: Failed with result 'exit-code'.
Nov 20 18:27:11 loccalhost systemd[1]: docker.service: Service hold-off time over, scheduling restart.
Nov 20 18:27:11 loccalhost systemd[1]: Stopped Docker Application Container Engine.
Nov 20 18:27:11 loccalhost systemd[1]: docker.service: Start request repeated too quickly.
Nov 20 18:27:11 loccalhost systemd[1]: Failed to start Docker Application Container Engine.
Nov 20 18:27:11 loccalhost systemd[1]: docker.service: Unit entered failed state.
Nov 20 18:27:11 loccalhost systemd[1]: docker.service: Failed with result 'start-limit-hit'.

Answer 1

在skyuua提到的同一線程中的一個較新的答案提出了以下建議（它將-H fd：//更改為-H unix：//）

sudo systemctl編輯docker.service

[Service]
ExecStart=
ExecStart=/usr/bin/dockerd -H unix:// -H tcp://127.0.0.1:2375

其次是

sudo systemctl守護進程重新加載

sudo systemctl重新啟動docker.service

在具有docker 18.0.3的Ubuntu 16.04上，這會重寫文件/etc/systemd/system/docker.service.d/override.conf ，該文件允許docker正確啟動。

Answer 2

我們運行了sudo apt-get update，我們的docker版本也得到了更新，它從18.09.1變為18.09.3，而docker變成了干草堆。 在網上進行挖掘之后，我會尋找可以為我們解決問題的解決方案。

sudo systemctl edit docker.service 

[Service]
ExecStart=
ExecStart=/usr/bin/dockerd-ce -H unix://var/run/docker.sock -H tcp://0.0.0.0:2375

然后重新啟動服務

sudo systemctl restart docker.service