what is template

A launch template is similar to a launch configuration, in that it specifies instance configuration information. It includes the ID of the Amazon Machine Image (AMI), the instance type, a key pair, security groups, and other parameters used to launch EC2 instances.

create launch template

template name

application and os images

instance type

key pair

security groups

storage

now template created

now launch instance from template

source template

launch instance

now see instance created

now see instance launched