use better error formatting for ansible

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ansible.cfg

@@ -1,9 +1,11 @@
 [defaults]
+forks = 30
+timeout = 30
 inventory = ./ansible/terraform.py
 remote_user = admin
-host_key_checking = False
-# this is useful when developing roles like infra-role-bootstrap
-#roles_path = ../
+host_key_checking = false
+# human-readable stdout/stderr results display
+stdout_callback = debug
 
 [privilege_escalation]
 become = true
@@ -15,5 +17,3 @@ pipelining = True
 control_path = /tmp/ansible-ssh-%%h-%%p-%%r
 # necessary for cloning private git repos
 ssh_args=-o ForwardAgent=yes -o ConnectTimeout=360
-# this can be useful when accessing from weird wifi
-#ssh_args = -o ForwardAgent=yes -o ProxyCommand='ssh -A -t arael.magi.blue nc %h %p 2>/dev/null'