Installation:
-----------------------------------------
```
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get -y install postgresql
```

Setup User:
---------------------------------------------------------
```
$ sudo -u postgres psql
CREATE DATABASE <dbname>;
CREATE USER <username> WITH ENCRYPTED PASSWORD '<password>';
GRANT ALL PRIVILEGES ON DATABASE <dbname> TO <username>;
```

Create user:
------------------------------------
```
sudo -u postgres createuser <username>
```

Create Database
----------------------------------------
```
sudo -u postgres createdb <dbname>
```

Give password to the user:
----------------------------------------------
```
$ sudo -u postgres psql
psql=# ALTER USER <username> WITH ENCRYPTED PASSWORD '<password>';
```

Grant privileges on database:
------------------------------------------------
```
psql=# GRANT ALL PRIVILEGES ON DATABASE <dbname> TO <username>;
```