Pillar openssh.known_hosts_salt_ssh (#128)

* Pillar openssh.known_hosts_salt_ssh

* Dropped ill-named file

* Fixed aliasing of host names

* Improved pillar.example

* Opt-in to include localhost

* pillar/known_hosts_salt_ssh: clear cache in run()

* Dropped forgotten debugging output

pillar.example

@@ -303,10 +303,26 @@ openssh:
     #hostnames:
     # Restrict wich hosts you want to use via their hostname
     # (i.e. ssh user@host instead of ssh user@host.example.com)
-    #  target: '*'  # Defaults to "*.{}".format(grains['domain']) with a fallback to '*'
+    #  target: '*'  # Defaults to "*.{{ grains['domain']}}"
     #  tgt_type: 'glob'
     # To activate the defaults you can just set an empty dict.
     #hostnames: {}
+    # Include localhost, 127.0.0.1 and ::1 (default: False)
+    include_localhost: False
+    # Host keys fetched via salt-ssh
+    salt_ssh:
+      # The salt-ssh user
+      user: salt-master
+      # specify public host names of a minion
+      public_ssh_host_names:
+        minion.id:
+          - minion.id
+          - alias.of.minion.id
+      # specify public host keys of a minion
+      public_ssh_host_keys:
+        minion.id: |
+          ssh-rsa [...]
+          ssh-ed25519 [...]
     # Here you can list keys for hosts which are not among your minions:
     static:
       github.com: 'ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGm[...]'