| Standard Amazon Reserved Instances | |
| > Switching between Regional and an Availability Zone scope (more on that below). | |
| > Switch between Availability Zones to a specific zone within the same region (for AZ scoped RIs only). | |
| > Switching between Classic EC2 Reserved Instances and Virtual Private Cloud. | |
| > Altering the instance size within the same family (For example, splitting an m4.xlarge Reservation into 2 m4.large Reservations, or the reverse: merging 2 m4.large Reservations into 1 m4.xlarge reservation.) | |
| Convertible RIs | |
| > Exchange for a new Instance type (across families) |
| Backup & Restore (Data backed up and restored) | |
| Pilot Light (Only Minimal critical functionalities) | |
| Warm Standby (Fully Functional Scaled down version) | |
| Multi-Site (Active-Active) |
| << Key Pair >> | |
| Create a Key Pair | |
| $ aws ec2 create-key-pair --key-name MyKeyPair --query 'KeyMaterial' --output text > MyKeyPair.pem | |
| $ chmod 400 MyKeyPair.pem | |
| Display Key Pair | |
| $ aws ec2 describe-key-pairs --key-name MyKeyPair | |
| Delete Key Pair | |
| $ aws ec2 delete-key-pair --key-name MyKeyPair |
| 1.Creating a User Account | |
| #useradd user1 | |
| 2.Add the SSH public key to the user account. First create a directory in the user's home directory for the SSH key file, then create the key file, and finally paste the public key into the key file. | |
| #cd /home/user1 | |
| #mkdir .ssh | |
| #cd .ssh | |
| #vim authorized_keys (Paste user public key in this file) | |
| 3.Setup permission |
| #!/bin/bash | |
| CLUSTERNAME=mycluster.mydomain | |
| NAMESPACE=default | |
| USERNAME=myclusteruser | |
| GROUPNAME=mygroup | |
| openssl genrsa -out ${USERNAME}.key 2048 | |
| CSR_FILE=$USERNAME.csr |
| 1. Cost Effective Resource selection | |
| 2. Match Supply and demand | |
| 3. Awareness of spend | |
| 4. Optimize | |
| << Cost Effective Resource Selection >> | |
| Provision to current needs with an eye to future. | |
| Right Sizing. | |
| Use data to choose purchase option. (on-demand or spot) | |
| Optimize by Regions, AZ and Edge (global infrastructure) |
| # Set variables in .bashrc file | |
| # don't forget to change your path correctly! | |
| export GOPATH=$HOME/golang | |
| export GOROOT=/usr/local/opt/go/libexec | |
| export PATH=$PATH:$GOPATH/bin | |
| export PATH=$PATH:$GOROOT/bin |
A curated list of AWS resources to prepare for the AWS Certifications
A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.
| ### Keybase proof | |
| I hereby claim: | |
| * I am josephphyo on github. | |
| * I am josephphyo (https://keybase.io/josephphyo) on keybase. | |
| * I have a public key ASCijTZVv2XC2thG4D96eFe9c7-YzJkdsbd76JOl1peSogo | |
| To claim this, I am signing this object: |
| class calculator: | |
| number1 = 0 | |
| number2 = 0 | |
| def __init__(self,num1 = int(input("Please Enter First Number --> ")),num2 = int(input("Please Enter Second Number2 -> "))): | |
| self.number1 = num1 | |
| self.number2 = num2 | |
| def add(self): | |
| result = self.number1 + self.number2 | |
| return result | |
| def minus(self): |
