Serving a vuejs project using docker and webpack

docker-vuejs

#!/bin/sh

# Author: Yukal Alexander <yukal@email.ua>
# License MIT
# Version: 2.0

# Usage:
# * $ ./docker-vuejs init            - Init Project (starts 'vue init webpack .')
# - $ ./docker-vuejs                 - Start Project (starts 'webpack-dev-server')
#   $ ./docker-vuejs clean           - Remove Project
#   $ ./docker-vuejs clean-folder    - Remove files and directories except for app.sh
#   $ ./docker-vuejs clean-docker    - Remove the Docker files of the project

APPNAME="appvue"
WORKDIR="/app"
IMAGE="node:10-alpine"
PORT_EXT=8080 #External
PORT_INN=8080 #Internal
PORTS="$PORT_EXT:$PORT_INN"
SCRIPT_NAME=$(basename -- $0)
SCRIPT=$WORKDIR/$SCRIPT_NAME

function PKG_ABSENT { return `which "$1" 2>/dev/null | grep -cm1 "$1"`; }
function IMG_ABSENT { return `docker images 2>/dev/null | grep -cm1 "$1"`; }
function MSG_TITLE { echo -e "\n#\033[32m $1 ...\033[0m\n# ========================\n"; }
function MSG_ERROR { echo -e "\033[31m${1}\033[0m"; }
function UCFIRST { FIRST[1]=${1:0:1}; echo ${FIRST[@]^}${1:1}; }
function CONFIRM {
    printf '\e[1;37m%s\e[0m (y/n) ' "$1"
    read -n 1 -r; echo;
    if [[ $REPLY =~ ^[Yy]$ ]]; then return 0; else return 1; fi
}
function REQUIRED {
    if PKG_ABSENT "$1"; then
        pkgname=$(UCFIRST "$1")
        MSG_ERROR "$pkgname requred! Please install it first"
        exit 1
    fi
}

clean_folder() {
    find . -mindepth 1 -maxdepth 1 -not -name "$SCRIPT_NAME" -print0 | xargs -0 -I {} rm -fr {}
}

clean_docker() {
    MSG_TITLE "Trying to remove docker files"

    # Remove container and volumes
    docker container rm -fv "$APPNAME"

    # Remove image and network
    docker image rm -f "$APPNAME"
    docker network rm "${APPNAME}_network"

    # Remove unnamed images and volumes
    if CONFIRM "Remove unnamed images and volumes?"; then
        docker rmi $(docker images -qf "dangling=true")
    fi
}

clean_project() {
    clean_docker;
    clean_folder;
}

read -r -d '' DOCKERFILE << EOM
FROM $IMAGE
#RUN npm install -g vue-cli
EXPOSE $PORT_EXT
CMD ["npm", "run", "dev"]
EOM

if [ ! -f /.dockerenv ]; then
    # Entry for a host machine environment

    # Removes files and directories except for docker-vuejs
    if [ "$1" == "clean-folder" ]; then
        clean_folder;
        exit 0;
    fi

    REQUIRED "docker";

    # Removes the Docker files of the project
    if [ "$1" == "clean-docker" ]; then
        clean_docker;
        exit 0;
    fi

    # Removes the project source
    if [ "$1" == "clean" ]; then
        clean_project;
        exit 0;
    fi

    # Init project
    if [ "$1" == "init" ]; then
        # Remove unnamed images and volumes
        if CONFIRM "Remove old docker files of the project?"; then
            clean_project;
        fi

        echo -e "$DOCKERFILE" > Dockerfile;
        docker run -it --rm --name $APPNAME -p "$PORTS" -v "$PWD":"$WORKDIR" -w "$WORKDIR" $IMAGE sh $SCRIPT $1 "$UID:$GROUPS"
    fi

    # Build an image
    if IMG_ABSENT "$APPNAME"; then
        MSG_TITLE "Building an image"
        docker build --no-cache --tag $APPNAME .
    fi

    # Start project
    docker run -it --rm --name $APPNAME -p "$PORTS" -v "$PWD":"$WORKDIR" -w "$WORKDIR" $APPNAME

else
    # Entry for an image environment

    REQUIRED "node";
    REQUIRED "npm";

    # Init project
    if [ "$1" == "init" ]; then
        if PKG_ABSENT "vue"; then 
            MSG_TITLE "Install vue-cli"
            npm install -g vue-cli
        fi

        if [ ! -f "$WORKDIR/package.json" ]; then
            MSG_TITLE "Init project"
            vue init webpack .
        fi
    fi

    # Install dependencies
    if [ ! -d "$WORKDIR/node_modules" ]; then
        MSG_TITLE "Installing project dependencies"
        npm install
    fi

    # Access listening on the host machine
    LISTEN_LOCAL() { return `cat package.json | grep -cm1 "webpack-dev-server --host 0.0.0.0"`; }
    if LISTEN_LOCAL; then
        sed -i 's/"dev": "webpack-dev-server /"dev": "webpack-dev-server --host 0.0.0.0 /' $WORKDIR/package.json
    fi

    # Fix owner
    chown -R $2 $WORKDIR
fi

exit 0;