docker-utils.sh

#!/usr/bin/env bash

# Put these functions into your ~/.bashrc
# Then source ~/.bashrc

# USAGE: get-docker-container-id pattern
# DESCRIPTION: This function takes as parameter an image name (or partial image name) and prints out the associated container hash if any
# EXAMPLE: get-docker-container-id ubuntu --> c3a364dd56df
function get-docker-container-id(){
        targetcontainer=$(docker ps |awk "/$1/" | tail -1)
        echo -e "\nFound one container:\n\n$targetcontainer\n\n" >&2
        local containerid=$(echo $targetcontainer|awk "{print \$1}" |tr -d '[:space:]')
        echo "$containerid"
}

# USAGE: docker-bash pattern
# DESCRIPTION: This function takes as parameter an image name (or partial image name) open an interactive bash session inside it
# EXAMPLE: docker-bash ubuntu --> root@c3a364dd56df:/home ...
function docker-bash(){
	docker exec -it $(get-docker-container-id $1) bash
}

# USAGE: docker-id pattern
# DESCRIPTION: This function takes as parameter an image name (or partial image name) and copies the associated container hash to the clipboard if any
# EXAMPLE: docker-id ubuntu --> copies "c3a364dd56df" to your clipboard
function docker-id() {
        echo -n "$(get-docker-container-id $1)" |pbcopy
        echo -e "Container id $containerid copied to clipboard!\n"
        return 0
}