The docker-nsenter script allows you to enter various namespaces of a Docker container, simplifying nsenter commands and making it easy to target running containers.
- Save the docker-nsenter.sh script in a directory within your $PATH. Note: Rename the script to docker-nsenter (without the .sh extension) for optimal compatibility with the ZSH completion script.
mv docker-nsenter.sh /usr/local/bin/docker-nsenter
chmod +x /usr/local/bin/docker-nsenter- If you want to use ZSH autocompletion, install the _docker-nsenter.zsh file:
- Move the file to your ZSH completion folder:
mkdir -p ~/.zsh/completions
mv _docker-nsenter.zsh ~/.zsh/completions/_docker-nsenter- Add the completion folder to your fpath if it’s not already set, and reload your ZSH configuration:
echo 'fpath+=(~/.zsh/completions)' >> ~/.zshrc
source ~/.zshrc- Autocompletion is now enabled! You can start using docker-nsenter with autocompletion by pressing [TAB] after the command name to see available options and running containers.
docker-nsenter Command
The docker-nsenter command provides options to enter specific namespaces (network, pid, etc.) of a Docker container using nsenter.
docker-nsenter --net <container name or ID>Other example commands:
- To enter the PID namespace:
docker-nsenter --pid <container name or ID>- To enter multiple namespaces, e.g., network and mount:
docker-nsenter --net --mount <container name or ID>The ZSH completion script provides:
- nsenter options with both short and long versions, making typing easier.
- A dynamic list of running Docker container names for quick selection.
⚠️ Note on Command NamingFor optimal ZSH completion functionality, the command should be installed without an extension (docker-nsenter). If you choose to keep the .sh extension, you’ll need to modify the completion script accordingly.
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