[Docker] - 도커가 active 상태이나 빌드에 실패할 때 : ERROR: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

상태를 보면 다음과 같이 도커는 문제없이 active 상태이지만, 빌드에 실패할 때가 있다.

      

      

      

    
    

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$ sudo systemctl status docker                                      
● docker.service - Docker Application Container Engine
   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2024-01-23 11:51:01 KST; 1min 6s ago
     Docs: https://docs.docker.com
 Main PID: 25391 (dockerd)
    Tasks: 10
   CGroup: /system.slice/docker.service
           └─25391 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

 

이때는 간단하게 다음 스텝을 따라가주자.

1. Docker 서비스 종료

여기서 중요한건 docker만 종료하면 안된다. 반드시 소켓이랑 컨테이너도 종료해주자.

      

      

      

    
    

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sudo systemctl stop docker

      

      

      

    
    

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sudo systemctl stop containerd

      

      

      

    
    

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sudo systemctl stop docker.socket

 

2. Docker 재시작

      

      

      

    
    

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sudo systemctl start docker

      

      

      

    
    

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$ sudo systemctl status docker                                      
● docker.service - Docker Application Container Engine
   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2024-01-23 11:51:01 KST; 1min 6s ago
     Docs: https://docs.docker.com
 Main PID: 25391 (dockerd)
    Tasks: 10
   CGroup: /system.slice/docker.service
           └─25391 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock