Docker Not Installed or Running
This issue can occur if Docker is not installed or if the user is not added to the Docker group. Here's how to troubleshoot:
- Check if Docker is installed. Run the following command:
Sample output:docker info
If you see this output, Docker is installed, but the user may not be added to the Docker group.Client: Context: default Debug mode: false Servers: default: Host: localhost Engine: Version: 20.10.14 API version: 1.44 Go version: go1.17.15 Git commit: 8668127 Built: Thu Apr 1 06:02:55 2021 OS/Arch: linux/amd64 Experimental: false Kernel: 5.15.0-52-generic Operating System: Ubuntu 22.04.1 LTS Total Memory: 31.8GiB CPUs: 8
- Check if the user is in the Docker group. Run the following command:
Sample output:grep -i docker /etc/group
Verify if your username is listed. If not, add the user to the Docker group:docker:x:999:root,$USER1,$USER2,etc
- Add user to the Docker group:
Example:sudo usermod -aG docker $USER
sudo usermod -aG docker Michael
- Verify the user is added. Re-run the group check:
The output should now include your username, e.g.:grep -i docker /etc/group
docker:x:999:root,michael
- Reboot the server:
sudo reboot
- Once logged back in, restart Docker:
sudo systemctl restart docker
- If no output is shown when running docker info, suggest downloading and installing Docker properly.
Updated 25 days ago