Day 20:20/90 Days of DevOps

• Today lets undersatnd about next service of AWS which is one of the mostly used service provided by AWS cloud.
• i.e. Amazon EC2
• Task: search about Amazon EC2 from amazon skillbuilder and other sources write notes about what you understand by Amazon EC2
• and some Keyconcepts EC2, elastic ,virtualization ,VCPU,Security groups,instance,Availability zones etc.

Answers=>

AWS EC2

Downtime of AWS is almost 0 that’s why its in demand

• Elastic compute cloud
• Elastic:- elasticity ability i.e. scalability
• EC2 is a web service that provides resizable compute capacity in cloud
• mainly provides SERVERS,PLATFORMS and resizable Capacity

Advantages :

• reduces the time required to obtain and boot new server instances (server/computer) to minutes
• allowing you to quickly scale capacity ,both up and down as per requirement

Availability zone makes their count much more with the help of Virtual Machine

we get virtual machine as per requirement we get remote access of that .

within 5 -10 mins

mumbai regions max memory Ec2:- 12288 GiB

max memory globaly Ec2:- 26TB

EC2 pricing types

1. On demand : user that want low cost and flexibility of EC2 without any upfront payment or long hourly price is calculated mostly used when we don’t know the idea about configuration of required server applications with short term,spiky or upredictable workloads
2. Dedicated Host: Useful for regulatory requirement that may not support multi-tenant virtualization . Great for licensing which does not support multi-tenancy or cloud deployment hourly payments we take dedicated physical server for ourselves i.e. dedicated host
3. Reserved: Applications with steady state Up-front payment option can lead to 30-70% low cost
4. Spot : Applcations that have flexible start and end times. this is actual purane server type it allocated using bidding (i.e boli lavne) its prices are varying in monthly span if price get fluctuated we should pay the new price otherwise it may get deleted testing applications mainly done here because ther eis no guarantee of 24/7 on

to buy a server 2 option : physical or virtual machine

but if we reserved and did upfront payment it costs a low

Types= Families

Specialities

each type has its embedded name i

vcpu=virtual cpu

Types of Instances:

• T2 Family:
• t2.nano:- example: 0.5 GB RAM | 1vcpu
• t2.micro:-example: 1 GB RAM | 1vcpu/t3.micro=2vcpu ⇒free tier account has 720 hours of this types
• t2.medium:-example: 4 GB RAM | 2vcpu
• t2.large:- example: 8 GB RAM | 2vcpu
• t2.xlarge:-example: 16 GB RAM | 4vcpu
• t2.2xlarge:-example: 32 GB RAM | 4vcpu

Security groups:- has protocols ,,it is nothing but a firewall specifies which protocolos will be allowed or not

Inbound rules:- incoming protocol services or URLS

Outbound rules:-outgoing services or protocols.

• 1 instance should have at least 1 security group
• and 1 Security group can be applied to multiple instances

Security groups:

• Every instance will have Security group
• it must be applied
• we have to add protocols to security group to allow protocols as inbound rule

Internet access is provided with high speed 5G speed on EC2 by amazon