Elastic Cloud Compute
A Virtual Machine that’s hosted in AWS Data Center
| Type | Advantage | Use Case | Points to note |
|---|---|---|---|
| On Demand | pay by hour or second | For Short Term | |
| Spot | Spin by defining what’s the maximum we can pay, can be stopped or terminated if the spot price exceeds the defined | Non-Critical | Up to 90% Discount |
| Reserved | Reserve for 1 or 3 years | When the Duration is fixed | up to 72% discount |
| Dedicated | Physically Dedicated Server | License , Compliance |
Instance Types
Defines the type of Server - GPU Based, CPU Based, Memory Based
EBS Volumes
Permissions
- IAM ROLES
- Best way - select required permissions and create a IAM role and then assign the role to EC2.
- Policy updates to the roles takes effect immediately.
- attaching and detaching the policies to the roles wont require restarting the machine.
- You can also hard code a user credentials inside EC2 and grant permissions to that user.