Tune default salt-minion config

* Sync configuration with
  https://github.com/Mirantis/reclass-system-salt-model/blob/master/salt/minion/single.yml
 * This config duplicates salt.minion state, but it configures exactly for first run

Change-Id: I0642f21a8e306b5c9fefcfde01c4a2f0e4b2ce22
Related: PROD:18322
diff --git a/maas/files/curtin_userdata_amd64_generic_xenial b/maas/files/curtin_userdata_amd64_generic_xenial
index 6f79497..8c60529 100644
--- a/maas/files/curtin_userdata_amd64_generic_xenial
+++ b/maas/files/curtin_userdata_amd64_generic_xenial
@@ -31,8 +31,16 @@
   apt_03_update: ["curtin", "in-target", "--", "apt-get", "update"]
   salt_01_install: ["curtin", "in-target", "--", "apt-get", "-y", "install", "salt-minion"]
   salt_02_hostname_set: ["curtin", "in-target", "--", "echo", "{% raw %}{{node.hostname}}{% endraw %}.{{pillar.linux.system.domain}}"]
-  salt_03_hostname_get: ["curtin", "in-target", "--", "sh", "-c", "echo 'id: {% raw %}{{node.hostname}}{% endraw %}.{{pillar.linux.system.domain}}' >> /etc/salt/minion"]
-  salt_04_master: ["curtin", "in-target", "--", "sh", "-c", "echo 'master: {{ salt_master_ip }}' >> /etc/salt/minion"]
+  salt_03_hostname_get: ["curtin", "in-target", "--", "sh", "-c", "echo 'id: {% raw %}{{node.hostname}}{% endraw %}.{{pillar.linux.system.domain}}' >> /etc/salt/minion.d/minion.conf"]
+  salt_04_master: ["curtin", "in-target", "--", "sh", "-c", "echo 'master: {{ salt_master_ip }}' >> /etc/salt/minion.d/minion.conf"]
+  salt_05_max_event_size: ["curtin", "in-target", "--", "sh", "-c", "echo 'max_event_size: 100000000' >> /etc/salt/minion.d/minion.conf"]
+  salt_06_acceptance_wait_time_max: ["curtin", "in-target", "--", "sh", "-c", "echo 'acceptance_wait_time_max: 60' >> /etc/salt/minion.d/minion.conf"]
+  salt_07_acceptance_wait_time: ["curtin", "in-target", "--", "sh", "-c", "echo 'acceptance_wait_time: 10' >> /etc/salt/minion.d/minion.conf"]
+  salt_08_random_reauth_delay: ["curtin", "in-target", "--", "sh", "-c", "echo 'random_reauth_delay: 270' >> /etc/salt/minion.d/minion.conf"]
+  salt_09_recon_default: ["curtin", "in-target", "--", "sh", "-c", "echo 'recon_default: 1000' >> /etc/salt/minion.d/minion.conf"]
+  salt_10_recon_max: ["curtin", "in-target", "--", "sh", "-c", "echo 'recon_max: 60000' >> /etc/salt/minion.d/minion.conf"]
+  salt_11_recon_randomize: ["curtin", "in-target", "--", "sh", "-c", "echo 'recon_randomize: True' >> /etc/salt/minion.d/minion.conf"]
+  salt_12_auth_timeout: ["curtin", "in-target", "--", "sh", "-c", "echo 'auth_timeout: 60' >> /etc/salt/minion.d/minion.conf"]
 {% raw %}
 {{if third_party_drivers and driver}}
   driver_00_key_get: curtin in-target -- sh -c "/bin/echo -en '{{key_string}}' > /tmp/maas-{{driver['package']}}.gpg"