Example Application for 2 tier app
Test Connectivty to RDS from EC2 instance #install netcat if not already installed sudo yum -y install nc nc -zv
Valid output: Ncat: Version 7.50 ( https://nmap.org/ncat ) Ncat: Connected to 10.201.2.117:3306. Ncat: 0 bytes sent, 0 bytes received in 0.07 seconds.
Failed Connection: Ncat: Connection timed out.
nslookup to test for public or private ELBs
aws cloudformation deploy --template-file 2-tier-app-stack.yaml \
--stack-name StackName \
--parameter-overrides VpcID="vpc-000000000" \
PublicSubnet1="subnet-00000000" \
PublicSubnet2="subnet-00000000" \
PrivateSubnet1="subnet-00000000" \
PrivateSubnet2="subnet-00000000" \
SshKey="ssh-key-name" \
DBSubnetGroup="Name of Private Subnet Group" \
DBPassword="xxxxxx"