notes blog about

Basic concepts

EC2 (Elastic Compute Cloud)

Processing power


  1. instance storage - attached to the physical host that runs your instance; recommended for fast temporary storage
  2. EBS (Elastic Block Store) - attached over the network; recommended for most of use cases
  3. SSDs - since 2012; similar to instance storage but massively higher IO speeds




  1. Create policies (JSON) that define access to services.
  2. Create a group and assign policies to it.
  3. Create a user and assign them to groups.
  4. Create roles (from the predifined ones). Roles are like users but for services (machine accounts).

You can use terraform to create these ^.