Prepare for your exams
Get points
Guidelines and tips
Sell on Docsity
Docsity AI

Prepare for your exams

Study with the several resources on Docsity

Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips

Sell on Docsity

Docsity AI

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents

20 Points

For each uploaded document

Answer questions

5 Points

For each given answer (max 1 per day)

All the ways to get free points

Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

Configuring a Multi-Tier Application with Neutron and Nova in OpenStack, Exercises of Neuroscience

Oxford Brookes University (OBU)Neuroscience

The steps to build a multi-tier application using openstack neutron and nova. It covers creating security groups, setting up virtual machines, and configuring load balancers. The goal is to allow external access to the jump host via ssh and to build a highly available web application.

Typology: Exercises

2017/2018

Uploaded on 05/11/2018

prashantm 🇮🇳

(2)

3 documents

1 / 60

This page cannot be seen from the preview

Don't miss anything!

Discover Exercises of Neuroscience Oxford Brookes University (OBU)

Partial preview of the text

Download Configuring a Multi-Tier Application with Neutron and Nova in OpenStack and more Exercises Neuroscience in PDF only on Docsity!

Neutron

Introduction

Building a multi-tier application

Heat

Instance deployment using OpenStack Heat

TripleO

Deploying OpenStack using TripleO

Building a multi-tier application using

OpenStack (PackStack)

Gerard Braad [email protected]

To setup the environment quickly, we will be using PackStack. PackStack is an

installation utility to quickly deploy an OpenStack cloud. In our case we will use

the all-in-one solutiion which allows a single node environment to test deploying

our multi-tier application.

Setup packstack environment

Use a RHEL or CentOS 7 installation.

$ systemctl disable NetworkManager $ systemctl enable network $ systemctl stop NetworkManager.service $ systemctl start network.service

$ yum install -y https://www.rdoproject.org/repos/rdo-release.rp m $ sudo yum update -y $ sudo yum install -y openstack-packstack $ packstack --allinone --os-neutron-lbaas-install=y

Check environment

In order to start using OpenStack , you’ll need to authenticate as a tenant. To do

this, run the following command in order to put the demo user’s credentials in your

environment.

$ source ~/keystonerc_admin

The installation automatically creates two networks for you ‘private’ and ‘public’.

The ‘public’ network we’ll use to allocate floating ips out of later. Running

openstack network list will show this.

$ openstack network list

Setup security groups

First we’ll create the three security groups we’ll need to contain the members:

web, database and ssh.

$ openstack security group create web

| Field | Value | +-------------+--------------------------------------+ | description | web | | id | a98fcd2f-a828-4a88-92aa-36e3c1223a92 | | name | web | | rules | [] | | tenant_id | 3d44af649a1c42fcaa102ed11e3f010f | +-------------+--------------------------------------+

| ID | Name | Description | +--------------------------------------+----------+------------- -----------+ | cf6c0380-e255-4ba8-9258-bb8e9c062fa7 | database | database | | 379b58b2-7ca3-431e-ae1f-cd6a627a9b30 | default | Default secu rity group | | 141ed0d0-c004-457d-8efa-45e0fd2dc986 | ssh | ssh | | a98fcd2f-a828-4a88-92aa-36e3c1223a92 | web | web | +--------------------------------------+----------+------------- -----------+

Now we’ll add rules into these security groups for their desired functionality.

Allow all HTTP traffic on port 80 to the web security group:

$ neutron security-group-rule-create --direction ingress --proto col TCP \

--port-range-min 80 --port-range-max 80 web

Allow database servers to be accessed from the web servers:

$ neutron security-group-rule-create --direction ingress --proto col TCP \

--port-range-min 3306 --port-range-max 3306 --remote-group-id web database

$ neutron security-group-rule-create --direction ingress --proto col TCP \

--port-range-min 22 --port-range-max 22 --remote-group-id ssh web

Allow the outside world to be able to ssh into the jump host on port 22:

$ neutron security-group-rule-create --direction ingress --proto col tcp \

--port-range-min 22 --port-range-max 22 ssh

Setup virtual machines

Now we can boot some virtual machines that will make use of these security

groups. Run openstack net work list to obtain the private network uuid

that we are going to be using:

$ openstack network list

| 1 | m1.tiny | 512 | 1 | 0 | 1 | True | | 2 | m1.small | 2048 | 20 | 0 | 1 | True | | 3 | m1.medium | 4096 | 40 | 0 | 2 | True | | 4 | m1.large | 8192 | 80 | 0 | 4 | True | | 5 | m1.xlarge | 16384 | 160 | 0 | 8 | True | +----+-----------+-------+------+-----------+-------+-----------

So we will be using flavor 1, which means instances are created with 512MB of

memory and a disk of 1G.

Note:

We also have to make sure that each instances has an IP address on the private

network. For this we are including the --nic net-id= option specifying the

network ID of the private network.

Setup web servers

Boot two instances named web_server1 and web_server2 on the private

network using the cirros image and part of the web security group:

$ nova boot --image cirros --nic net-id=84aff6b0-2291-41b5-9871- d3d24906e358 \

--security_groups web --flavor 1 web_server

| OS-EXT-AZ:availability_zone | | | OS-EXT-SRV-ATTR:host | - | | OS-EXT-SRV-ATTR:hypervisor_hostname | - | | OS-EXT-SRV-ATTR:instance_name | instance- | | OS-EXT-STS:power_state | 0 | | OS-EXT-STS:task_state | scheduling | | OS-EXT-STS:vm_state | building | | OS-SRV-USG:launched_at | - | | OS-SRV-USG:terminated_at | - | | accessIPv4 | | | accessIPv6 | | | adminPass | vyT4575gsqth | | config_drive | | | created | 2016-02-25T08:22:53Z | | flavor | m1.tiny (1) | | hostId | | | id | 146056ad-e8dc-4ad3- -97b753f3d040 | | image | cirros (eea0e326-8e2e- 1db-80a0-1138a4bdd5a6) | | key_name | - | | metadata | {} |

Setup database server

Boot database server

$ nova boot --image cirros --nic net-id=84aff6b0-2291-41b5-9871- d3d24906e358 \

--security_groups database --flavor 1 database_server

Setup jumphost server

Boot ssh jump host

$ nova boot --image cirros --nic net-id=84aff6b0-2291-41b5-9871- d3d24906e358 \

--security_groups ssh --flavor 1 jumphost

| OS-EXT-SRV-ATTR:instance_name | instance- | | OS-EXT-STS:power_state | 0 | | OS-EXT-STS:task_state | scheduling | | OS-EXT-STS:vm_state | building | | OS-SRV-USG:launched_at | - | | OS-SRV-USG:terminated_at | - | | accessIPv4 | | | accessIPv6 | | | adminPass | jwbUXkmfEK7Y | | config_drive | | | created | 2016-02-25T08:23:54Z | | flavor | m1.tiny (1) | | hostId | | | id | e540896e-e148-414a- -3b83d3f2b059 | | image | cirros (eea0e326-8e2e- 1db-80a0-1138a4bdd5a6) | | key_name | - | | metadata | {} | | name | jumphost | | os-extended-volumes:volumes_attached | [] | | progress | 0 |

Configuring a Multi-Tier Application with Neutron and Nova in OpenStack, Exercises of Neuroscience

Related documents

Partial preview of the text

Download Configuring a Multi-Tier Application with Neutron and Nova in OpenStack and more Exercises Neuroscience in PDF only on Docsity!

Table of Contents

Neutron

Introduction

Building a multi-tier application

Heat

Instance deployment using OpenStack Heat

TripleO

Deploying OpenStack using TripleO

Building a multi-tier application using

OpenStack (PackStack)

Gerard Braad [email protected]

To setup the environment quickly, we will be using PackStack. PackStack is an

installation utility to quickly deploy an OpenStack cloud. In our case we will use

the all-in-one solutiion which allows a single node environment to test deploying

our multi-tier application.

Setup packstack environment

Use a RHEL or CentOS 7 installation.

Check environment

In order to start using OpenStack , you’ll need to authenticate as a tenant. To do

this, run the following command in order to put the demo user’s credentials in your

environment.

The installation automatically creates two networks for you ‘private’ and ‘public’.

The ‘public’ network we’ll use to allocate floating ips out of later. Running

openstack network list will show this.

First we’ll create the three security groups we’ll need to contain the members:

web, database and ssh.

Now we’ll add rules into these security groups for their desired functionality.

Allow all HTTP traffic on port 80 to the web security group:

Allow database servers to be accessed from the web servers:

Allow the outside world to be able to ssh into the jump host on port 22:

Now we can boot some virtual machines that will make use of these security

groups. Run openstack net work list to obtain the private network uuid

that we are going to be using:

So we will be using flavor 1, which means instances are created with 512MB of

memory and a disk of 1G.

Note:

We also have to make sure that each instances has an IP address on the private

network. For this we are including the --nic net-id= option specifying the

network ID of the private network.

Boot two instances named web_server1 and web_server2 on the private

network using the cirros image and part of the web security group:

Boot database server

Boot ssh jump host