GrafanaInstallation

Install Graphite and its dependencies:
-------------------------------------
sudo apt-get update
sudo apt-get install graphite-web graphite-carbon grafana
sudo apt-get install postgresql libpq-dev python-psycopg2
sudo apt-get install apache2 libapache2-mod-wsgi
sudo apt-get install collectd collectd-utils


Switch to postgres user and create the DB user graphite:
-------------------------------------------------------
sudo -u postgres psql
CREATE USER graphite WITH PASSWORD 'graphite_password';
CREATE DATABASE graphite WITH OWNER graphite;
\q


Configure Graphite:
-------------------------
Open /etc/graphite/local_settings.py 
Do below modifications,

SECRET_KEY = 'a_salty_string'
TIME_ZONE = 'Asia/Kolkata'   

   DATABASES = {
    'default': {
        'NAME': 'graphite',
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'USER': 'graphite',
        'PASSWORD': 'graphite_password',
        'HOST': '127.0.0.1',
        'PORT': ''
    }
}

Sync the Database:
-----------------------
sudo graphite-manage syncdb


Configure Carbon and start it:
------------------------------

sudo vi /etc/default/graphite-carbon 
CARBON_CACHE_ENABLED=true

sudo vi /etc/carbon/carbon.conf
ENABLE_LOGROTATION = True

Setting the Storage Schema and Aggregation:
Copy default storage aggregation file to carbon directory:
sudo cp /usr/share/doc/graphite-carbon/examples/storage-aggregation.conf.example /etc/carbon/storage-aggregation.conf
sudo vi /etc/carbon/storage-schemas.conf
[collectd]
pattern = ^collectd.*
retentions = 10s:1d,1m:7d,10m:1y

save the file and start carbon-cache daemon:
sudo service carbon-cache start


Install and configure Apache + wsgi:
---------------------------------------
sudo apt-get install apache2 libapache2-mod-wsgi
sudo a2dissite 000-default
sudo cp /usr/share/graphite-web/apache2-graphite.conf /etc/apache2/sites-available
sudo a2ensite apache2-graphite
sudo service apache2 reload
    
# Check the status at http://domain_name_or_IP/server-status
We can now access Graphite interface by browsing to http://your_ip_address.


Configure Collectd
--------------------------
/etc/collectd/collectd.conf

LoadPlugin syslog
LoadPlugin write_graphite

<Plugin syslog>
        LogLevel info
</Plugin>

<Plugin write_graphite>
    <Node "graphing">
        Host "localhost"
        Port "2003"
        Protocol "tcp"
        LogSendErrors true
        Prefix "collectd."
    </Node>
</Plugin>



Configure grafana:
--------------------
sudo vi /etc/grafana/grafana.ini

[database]
# Either "mysql", "postgres" or "sqlite3", it's your choice
type = postgres
host = 127.0.0.1:5432
name = graphite
user = graphite
password = graphite_password



start Carbon :
--------------
sudo service carbon-cache start


start apache :
--------------
sudo service apache2 reload


start collectd :
--------------
sudo service collectd restart


start grafana:
---------------
sudo service grafana-server start


Chnages required in collectd.conf in Lotus board:
----------------------------------------------------

LoadPlugin write_graphite

<Plugin write_graphite>
        <Node "graphite">
                Host "10.197.74.139"
                Port "2003"
                Protocol "tcp"
                LogSendErrors true
                Prefix "collectd."
        </Node>
</Plugin>


Reference:
------------

https://community.rackspace.com/products/f/public-cloud-forum/6800/how-to-set-up-monitoring-stack-using-collectd-graphite-grafana-and-seyren-on-ubuntu-14-04

https://www.digitalocean.com/community/tutorials/how-to-install-and-use-graphite-on-an-ubuntu-14-04-server

http://graphite.readthedocs.io/en/latest/install.html





Steps that are not included in our installation are given below:
====================================================================

Configure Carbon:
-------------------
Main configuration file is /etc/carbon/carbon.conf. We would need to edit it to configure carbon to listen on isolated network interface 192.168.3.12:
sudo sed -i.bak s/0.0.0.0/192.168.3.12/g /etc/carbon/carbon.conf


Install and configure Grafana:
-------------------------------
Add the following line to your /etc/apt/sources.list file.

deb https://packagecloud.io/grafana/stable/debian/ wheezy main
Add the Package Cloud key to be able to install signed packages:

curl https://packagecloud.io/gpg.key | sudo apt-key add -
 Update your Apt repositories and install Grafana:

sudo apt-get update
sudo apt-get install grafana
You can configure to listen on any port, but we will show how to use SSL and configure Grafana to listen on port 443:

cd /etc/grafana
sudo openssl req -x509 -newkey rsa:2048 -keyout cert.key -out cert.pem -days 3650 -nodes

Edit file /etc/grafana/grafana.ini and set the following:

# https certs & key file
cert_file = /etc/grafana/cert.pem
cert_key = /etc/grafana/cert.key

protocol = https
http_port = 443

 Set grafana to be able to run on any port:

 sudo setcap 'cap_net_bind_service=+ep' /usr/sbin/grafana-server
 Configure Grafana server to start on boot:

sudo update-rc.d grafana-server defaults 95 10

Install and configure Seyren:
-----------------------------
Seyren not installed.