Docker Engine is a powerful platform that enables developers to build, ship, and run applications in containers. Containers are lightweight, portable, and ensure consistency across different environments, making Docker an essential tool for modern software development and deployment.
While working with Docker, you might encounter the error message: Docker: Error response from daemon: network not found. This error typically occurs when Docker is unable to locate the specified network for a container operation.
This error arises when the network you are trying to use does not exist in Docker's network list. It can happen if the network was never created or if it was deleted.
Docker networks allow containers to communicate with each other and with external systems. They can be created using the docker network create command. For more details, refer to the Docker Networking Documentation.
First, check the list of existing networks to ensure the network you intend to use is available. Run the following command:
docker network ls
This command will display all networks currently available in Docker.
If the network is not listed, you need to create it. Use the following command to create a new network:
docker network create my_network
Replace my_network with your desired network name. For more options, visit the Docker Network Create Command Reference.
After creating the network, verify its existence by running:
docker network ls
Ensure your newly created network appears in the list.
By following these steps, you can resolve the "network not found" error in Docker. Always ensure that the network you intend to use is created and available before attempting to connect containers to it. For further reading, explore the Docker Get Started Guide.
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