timestamp returns the current date and time.
In the Packer language, timestamps are conventionally represented as
strings using RFC 3339
"Date and Time format" syntax, and so
timestamp returns a string
in this format.
The result of this function will change every second, so using this function directly with resource attributes will cause a diff to be detected on every Packer run.
Breaking change note: Packer previously let you decide your own "Date
and Time format" syntax. With HCL2 and for parity with Terraform, Packer will
be using the RFC 3339 "Date and Time
format" syntax. As a string.
formatdate still allows you
to format a date.
formatdatecan convert the resulting timestamp to other date and time formats.