Sometimes I find myself running commands on containers or reading logs. In order to achieve my order I need to first get the container name with docker ps, copy the container name and then run the desired command. Today I wrote this 2 zsh functions to avoid this.

fdex

This first function stands for “fuzzy docker exec”, it parses the output from docker ps with awk, get the last column where the container names appears and then passes it to fzf. From fzf I can select a container where I want to enter, store it and finally run docker exec to that container.

function fdex() {
	CONTAINER=`docker ps | rg -v CONTAINER | awk '-F ' ' {print $NF}' | fzf`
	if [ ! -z $CONTAINER ]
	then
		docker exec -it $CONTAINER bash
	fi
}

I run ripgrep with the reverse match option to filter out the first line which is not interesting because it does not contains any running docker information.

fdlog

This one stands for “fuzzy docker logs” and basically it is the same function, running docker logs at the end.

function fdex() {
	CONTAINER=`docker ps | rg -v CONTAINER | awk '-F ' ' {print $NF}' | fzf`
	if [ ! -z $CONTAINER ]
	then
		docker logs -f $CONTAINER
	fi
}