AWS Classroom notes 18/Nov/2023

AWS CLI

• AWS CLI is used to access AWS services from the command line
• For automation AWS CLI is widely used
• Installation: Refer Here for installation
• Configuring AWS CLI
  • For authentication it needs access key id and secret access key
  • Navigate to IAM and create a user with administrator access
  • Create access key and secret key
  • execute aws configure aws configure
  • To verify if aws cli is configured or not execute aws s3 ls

How to work with aws cli

Scenario: Create an ubuntu 22.04 instance in us-east-1 region

• overview
  
• Any ec2 instance will need
  • vpc with subnet (get the id’s or create our own network and subnet)
  • security group
  • ami id
  • size: t2.micro
• CLI

# get vpc id
aws ec2 describe-vpcs
# vpc-cd32bcb0

# get subnet id from az A (us-east-1a)
aws ec2 describe-subnets --filters "Name=availability-zone,Values=us-east-1a"
#subnet-15ede058

# create or use existing security group
aws ec2 describe-security-groups --filters "Name=group-name,Values=openssh"
# sg-0f67708d44b7f6cb1

aws ec2 describe-security-groups --filters "Name=group-name,Values=openhttp"
# sg-0bdd39a6be616d961

# Get key pair name
aws ec2 describe-key-pairs
# id_rsa

# Create an ec2 instance
aws ec2 run-instances \
    --instance-type "t2.micro" \
    --key-name "id_rsa" \
    --security-group-ids "sg-0f67708d44b7f6cb1" "sg-0bdd39a6be616d961" \
    --subnet-id "subnet-15ede058" \
    --image-id "ami-0fc5d935ebf8bc3bc"

Exercise:

• Create an ec2 instance without public ip address
• Create an ec2 instance with user data to install nginx with public ip