Groovy Script with MongoDB

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What is this ?

This is a simple example how to run a script Groovy with MongoDB.

What you will need to run this project ?

• Java

sudo apt-get install java

• Groovy

sudo apt-get install groovy

• Maven

sudo apt-get install maven

• Docker
• Docker-Compose

Run with Docker

• 1-) Run the docker compose build in the folder script, example:

docker-compose build

• 2-) Run the setup step on the docker compose, examploe:

docker-compose run --rm setup

• 3-) Run the ETL inscript inside of conteiner:

docker-compose run --rm app bash
$:> nohup ./run_for_docker.sh &
$:> tail -f logs/user.log

Running at your machine, installing MongoDB

This installation example it's only for Linux.

• 1-) Add apt-key and install MongoDB

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
sudo apt-get update
sudo apt-get install -y mongodb-org

• 2-) Creating directories

sudo mkdir -p /data/db/
sudo chmod -R 775 /data/

• 3-) Creating the service file

sudo touch /etc/systemd/system/mongodb.service
sudo nano /etc/systemd/system/mongodb.service

Paste this into mongodb.service file

[Unit]
Description=High-performance, schema-free document-oriented database
After=network.target

[Service]
User=mongodb
ExecStart=/usr/bin/mongod --quiet --config /etc/mongod.conf

[Install]
WantedBy=multi-user.target

• 4-) Start the service

sudo systemctl start mongodb
sudo systemctl status mongodb

Creating the database for tutorial

• 1-) Connect on MongoDB and execute these commands

$: mongo
> use user;
> db.createUser({ user: "user-admin", pwd: "admin123", roles: [ "readWrite" ] })

Run the tutorial script

• 1-) Just run the import.sh script :-)

./run.sh