Saltstack troubleshooting

Invalid Jinja

Check the minion's /var/log/salt/minion to get the full python stacktrace.

Salt Modules won't Execute

Here there be dragons.
If you're lucky, the salt modules documentation will stipulate a requirement. For example, see the note on salt.modules.gpg.
Otherwise, ... TBD.

Here are some modules that I bang my head against frequently.

gpg

pip