How to work out some errors between salt master and minion

Will be continued

different hash types problem

If you have problems like ‘AsyncAuth’ object has no attribute ‘_finger_fail’ in your journalctl on minion node when do:

• Stop master and minion(s)
• Clear out keys on master: salt-key -D
• Clear out master key on minion(s): /etc/salt/pki/minion/minion_master.pub
• Make sure hash_type is the same on master and minion(s): hash_type: sha256
• Run salt-key -F master on master, copy master.pub vlaue to minion master_finger setting
• Start master and minions
• Accept minion key on master (salt-key -a hostname)

Targeting hosts

By grains:
sudo salt -G 'os:Ubuntu' test.ping
By pillars:
salt '*' saltutil.sync_all salt -I 'somekey:specialvalue' test.ping
By IP:
salt IP test.ping
By Nodegroup:
salt -N group1 test.ping

Debug start of salt

sudo salt-master -l debug sudo salt-minion -l debug

Configure modules on minion for beacon functionality

sudo apt install python-pip sudo pip install pyinotify sudo apt-get install python-psutil