In CloudFormation both nested stacks and modules encourage reusability by creating common components. From the AWS documentation it is not coming out when to us
listeners
cancellation
image-reader
felogin
implicit-parameters
sapply
uidraginteraction
hot-reload
serde
ubuntu-15.04
documentfile
jpos
non-convex
flush
thrift
raw-post
distributive
zerotier
file-type
ompl
equational-reasoning
stackedbarseries
flir
thrax-compiler
node-opcua
amqp
horizontal-pod-autoscaling
xmlsec
activebatch
jquery-infinite-scroll