Docker helper script

do.sh

#!/usr/bin/env bash

BLUE="\\033[1;34m"
GREEN="\\033[1;32m"
NORMAL="\\033[0;39m"
RED="\\033[1;31m"

print_help() {
    echo -e "${BLUE}Available environments${NORMAL}"
    echo "  - DEV (default)"
    echo "  - PROD"
    echo "  - STAGING"
    echo ""
    echo -e "${BLUE}Available commands${NORMAL}"
    echo -e "  > build \t\t Build or rebuild services"
    echo -e "  > django [:command] \t Run a django-specific command"
    echo -e "  > docker [:command] \t Run a docker command"
    echo -e "  > logs [:service] \t View output from containers"
    echo -e "  > runserver \t\t Run development server"
    echo -e "  > shell \t\t Connect to a BASH session from the service inside"
    echo -e "  > start \t\t Create and start containers"
    echo -e "  > status \t\t List containers"
    echo -e "  > stop \t\t Stop services"
}

docker_command() {
    command="docker-compose -f docker-compose.yml "

    if [ ${ENV} = "PROD" ]
    then
        file_prefix="prod"
    elif [ ${ENV} = "STAGING" ]
    then
        file_prefix="staging"
    else
        file_prefix="dev"
    fi

    command+="-f docker-compose.${file_prefix}.yml ${@}"
    echo -e "${BLUE}    Command: ${NORMAL}${command}"
    echo -e ""
    eval ${command}
}

build() {
    docker_command build
}

django() {
    docker_command run --rm backend python manage.py ${@}
}

docker() {
    docker_command ${@}
}

logs() {
    docker_command logs -f --tail 50 ${@}
}

runserver() {
    docker_command run --rm --service-ports backend
}

shell() {
    docker_command run --rm backend bash
}

status() {
    docker_command ps
}

start() {
    docker_command up -d
}

stop() {
    docker_command stop
}

if [ -z ${1} ]
then
    print_help
else
    case ${ENV} in
        "PROD")
            env_str="production"
            ;;
        "STAGING")
            env_str="staging"
            ;;
        *)
            env_str="development"
            ;;
    esac
    echo -e "${BLUE}Environment:${NORMAL} ${env_str}"
    ${@}
fi