docker exec bash alias

dexec.sh

# usage:
# dexec <cmd>

# uses fzf to select running container then runs
# $ docker run [selected] <cmd>
# with /bin/bash as the default cmd

# TODO: add some pretty printing
function dexec() {
    local selected_image
    selected_image=$(docker ps --format='NAME: {{.Names}}, ID: {{.ID}}, IMAGE: {{.Image}}, COMMAND: {{.Command}}, PORTS: {{.Ports}}' | fzf)
    local id
    id=$(echo "$selected_image" | cut -f2 -d ',' | cut -f2 -d ':' | tr -d ' ')
    local cmd
    local dcmd=${1:-/bin/bash}
    cmd="docker exec -it ${id} ${dcmd}"
    echo "running: ${cmd}"
    eval "$cmd"
}