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Cannot connect to the Docker daemon
$Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Analysis
The Docker client cannot communicate with the Docker daemon (engine).
Common Triggers
- ●Docker service is not started.
- ●Current user does not have permission to access /var/run/docker.sock.
Debug Checks
- $Run
systemctl status docker(Linux). - $Check if
docker.sockexists and its permissions.
Resolution
1
Start Docker:
sudo systemctl start docker.2
Add user to docker group:
sudo usermod -aG docker $USER (requires re-login).Metadata
- Tool
- Docker
- Severity
- High
- Tags
- #docker#daemon#service