Permission denied – we don’t like it! 🙂
After docker" installation you can encounter error: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/images/json: dial unix /var/run/docker.sock: connect: permission denied
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/containers/json: dial unix /var/run/docker.sock: connect: permission denied
Table of Contents
Docker Makes Development Efficient And Predictable
docker" automates boring configuration processes and is utilized across the development lifecycle for fast, easy, and portable desktop and cloud application development. Docker’s end-to-end platform comprises UIs, CLIs, APIs, and security that are all designed to function together across the application delivery lifecycle.
Using Docker You Can…
Utilize Docker images to quickly construct your own unique applications on Windows" and Mac to get a jump start on your coding. docker" Compose can help you build a multi-container program.
docker" integrates with all of your favorite development tools, including VS Code, CircleCI, and GitHub", so you can use them throughout your development pipeline.
Package apps as portable container images to run in a variety of environments, including Kubernetes on premises, AWS ECS, Azure" ACI, Google GKE, and others.
Use Docker Trusted Content from the Docker" Hub repository, such as docker" Official Images and images from docker" Verified Publishers.
Collaborate with team members" and other developers to come up with new ideas, and easily upload images to docker" Hub.
With roles-based access control and docker" Hub Audit Logs, you can customize developer access to images and gain insight into activity history.
Deliver multiple applications with ease, and have them run the same way in all of your settings – desktop or cloud-native – including design, testing, staging, and production.
Deploy your applications in various containers, each with its own language. Reduce the possibility of clashing languages, libraries, or frameworks.
With the ease of docker" Compose CLI, you can run your applications locally and in the cloud with AWS ECS and Azure" ACI with just one command.
Where Can I Find Official Docker Images?
The best place to look for official images is Docker Hub. There you will find countless ready-made images to use for free, along with usage descriptions and source code reference to GitHub", Gitlab" or other code repository.
Solution For: Got Permission Denied While Trying To Connect To The Docker Daemon Socket
dial unix /var/run/docker.sock: connect: permission denied
Please follow the 4 steps below:
1. Create docker group if doesn’t exists
Check if you are in the
If not exists create docker" group
# Create docker group if doesn't exists sudo groupadd docker
2. Add user to docker group
# Add user to docker group sudo usermod -aG docker $USER
If the docker" daemon is not running, you can start it using the following command:
sudo systemctl start docker
3. Run the newgrp to change the current group ID during a login session
# Run the newgrp to change the current group ID during a login session newgrp docker
Check if the
/var/run/docker.sock file has the correct permissions. The
docker.sock file should be owned by the
root user" and the
docker group, and it should have the
rw permissions set for the owner and the group. You can check the permissions using the following command:
ls -l /var/run/docker.sock
If the permissions are not correct, you can fix them using the following command:
sudo chmod g+rw /var/run/docker.sock
4. Check docker client without root permissions
# Check docker client without root permissions docker images docker run hello-world
You should see the output like below:
Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/
If none of the above steps helped, you may need to restart your machine and try again.
I hope this helps! Let me know if you have any other questions.
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