When it comes to troubleshooting HashiCorp's Packer builds, Packer offers 2 ways:
More detailed logging that's activated by setting the
PACKER_LOG environment variable to a value that's not
Running Packer build in debug mode with
packer build -debug
- The good: this is ideal for remote builds with cloud providers like Amazon Web Services AMIs
- The bad: disables parallelization (but) and enables debug mode (prints password for Admin).