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:: Nginx ::

NGINX is a free, open-source, high-performance HTTP server and reverse proxy server. NGINX is known for its high performance, stability, rich feature set, simple configuration, and low resource consumption.


Installation:

yum install nginx
systemctl start nginx

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# The hash sign tells Python to ignore the rest of this line.
# This way, we can write 'comments' that tell us stuff about code,
# but do nothing to the program.
 
# Print some stuff to the screen, on separate lines.
print(5)
print("hello")
print(2.5)
 
# Store some values with a name. Let's store '5' with the name 'x'.

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#LBAAS v2

- On Controller & Network Node:

yum upgrade
yum -y install openstack-neutron-lbaas haproxy


- Enable the LoadBalancerPluginv2 inside the /etc/neutron/neutron.conf --

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---
# ^^^ YAML documents must begin with the document separator "---"
#
#### Example docblock, I like to put a descriptive comment at the top of my 
#### playbooks.
#
# Overview: Playbook to bootstrap a new host for configuration management.
# Applies to: production
# Description: 
#   Ensures that a host is configured for management with Ansible.

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::DEVOPS::

'''''''''''''''''''''''''''''
Intro
'''''''''''''''''''''''''''''

Concepts Covered

# DevOps is an IT mindset that encourages communication, collaboration, integration and automation among software developers and IT operations in order to improve the speed and quality of delivering software.

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'''''''''''''''''''''''''''''
DevOps Infra Components
'''''''''''''''''''''''''''''
Concepts Covered


Tasks:

- Install Oracle Vbox (Use NAT mode in Networking) HDD-10GB, RAM-1024MB
- Install CentOS 7 Minimal / DVD

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:: SUBVERSION Image with frontend ::

3343 - HTTP CSVN Admin Sites
4434 - HTTPS CSVN Admin Sites (If SSL is enabled)
18080 - Apache Http SVN


To run SVN Server execute the command below:

docker run -d -p 3343:3343 -p 4434:4434 -p 18080:18080 \

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::CHEF::

-Workstation:
Chef comprises of a workstation which is configured to develop the recipes and cookbooks.
It is also configured to run the knife and synchronizes with the chef-repo to keep it up-to-date.

-Server:
Chef server stores recipes/cookbooks and assigns on to the nodes depending on their requirements.

-Nodes:

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::PUPPET::

- Key Puppet components

Agent
Description A daemon process running on a node that collects information about the node and sends it to the Puppet master.

Catalog
Description Compilation of facts that specifies how to configure the node.

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##-Monitoring-#

~ Cadvisor for Docker

sudo docker run \
  --volume=/:/rootfs:ro \
  --volume=/var/run:/var/run:rw \
  --volume=/sys:/sys:ro \
  --volume=/var/lib/docker/:/var/lib/docker:ro \
  --publish=18888:8080 \