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Create state database

We will use mongodb to store state and authentication data for our entity.

Install

Install direct from MongoDB's repo 

sudo apt install dirmngr gnupg apt-transport-https ca-certificates software-properties-common
wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -

sudo add-apt-repository 'deb [arch=amd64] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse'
sudo apt install mongodb-org
sudo systemctl enable --now mongod

Install using a docker container

Secure

create root user, 

use admin
db.createUser({user:"koad", pwd:"PUT_MONGODB_ROOT_PASSWORD_HERE", roles:[{role:"root", db:"admin"}]})

From within mongo, authenticate as root 

use admin
db.auth( "koad", "PUT_MONGODB_ROOT_PASSWORD_HERE")

Setup

Connect to dabrain's mongo instance as root 

mongo --host $DB_HOST:$DB_PORT -u $INIT_ROOT_USERNAME -p $INIT_ROOT_PASSWORD --authenticationDatabase admin

Create a new database and user for some app somewhere 

use alice
db.createUser(
  {
    user: "alice",
    pwd: "somerandompassword",
    roles: ["readWrite"],
    mechanisms:[  
      "SCRAM-SHA-1"
    ]
  }
)

Maintain

Connect to the instance 

mongo --host $MONGO_URL
See what is what (from within the mongo shell) 
db.runCommand({connectionStatus : 1})

Restart the installed mongodb instance 

sudo systemctl restart mongod

Restart the dockerizes mongodb instance

Utilize

Use this DB on some meteor app.. prefix the meteor command with 

export DB_USER_NAME=PUT_YOUR_DB_USER_NAME_INFO_HERE
export DB_USER_PASS=PUT_YOUR_DB_USER_PASS_INFO_HERE
export DB_HOST=PUT_YOUR_DB_HOST_INFO_HERE
export DB_PORT=PUT_YOUR_DB_PORT_INFO_HERE
export DB_NAME=PUT_YOUR_DB_NAME_INFO_HERE
export MONGO_URL=mongodb://DB_USER_NAME:DB_USER_PASS@DB_HOST:DB_PORT/DB_NAME

references: https://linuxize.com/post/how-to-install-mongodb-on-ubuntu-20-04/ https://www.digitalocean.com/community/tutorials/how-to-install-mongodb-on-ubuntu-20-04