manage salt-minion start delay with systemd drop-in file - https://github.com/Security-Onion-Solutions/securityonion/issues/8441

salt/salt/map.jinja

@@ -11,7 +11,6 @@
   {% set PYTHON3INFLUX= 'influxdb == ' ~ PYTHONINFLUXVERSION  %}
   {% set PYTHON3INFLUXDEPS= ['certifi', 'chardet', 'python-dateutil', 'pytz', 'requests'] %}
   {% set PYTHONINSTALLER = 'pip' %}
-  {% set SYSTEMD_UNIT_FILE = '/lib/systemd/system/salt-minion.service' %}
 {% else %}
   {% set SPLITCHAR = '-' %}
   {% set SALTNOTHELD = salt['cmd.run']('yum versionlock list | grep -q salt ; echo $?', python_shell=True) %}
@@ -22,7 +21,6 @@
   {% set PYTHON3INFLUX= 'securityonion-python3-influxdb' %}
   {% set PYTHON3INFLUXDEPS= ['python36-certifi', 'python36-chardet', 'python36-dateutil', 'python36-pytz', 'python36-requests'] %}
   {% set PYTHONINSTALLER = 'pkg' %}
-  {% set SYSTEMD_UNIT_FILE = '/usr/lib/systemd/system/salt-minion.service' %}
 {% endif %}
 
 {% set INSTALLEDSALTVERSION = salt['pkg.version']('salt-minion').split(SPLITCHAR)[0] %}

salt/salt/minion.sls

@@ -81,10 +81,10 @@ set_log_levels:
       - "log_level: error"
       - "log_level_logfile: error"
 
-salt_minion_service_unit_file:
+salt_minion_service_start_delay:
   file.managed:
-    - name: {{ SYSTEMD_UNIT_FILE }}
-    - source: salt://salt/service/salt-minion.service.jinja
+    - name: /etc/systemd/system/salt-minion.service.d/start-delay.conf
+    - source: salt://salt/service/start-delay.conf.jinja
     - template: jinja
     - defaults:
         service_start_delay: {{ service_start_delay }}

salt/salt/service/salt-minion.service.jinja

@@ -1,15 +0,0 @@
-[Unit]
-Description=The Salt Minion
-Documentation=man:salt-minion(1) file:///usr/share/doc/salt/html/contents.html https://docs.saltstack.com/en/latest/contents.html
-After=network.target salt-master.service
-
-[Service]
-KillMode=process
-Type=notify
-NotifyAccess=all
-LimitNOFILE=8192
-ExecStart=/usr/bin/salt-minion
-ExecStartPre=/bin/sleep {{ salt['pillar.get']('salt:minion:service_start_delay', service_start_delay) }}
-
-[Install]
-WantedBy=multi-user.target

salt/salt/service/start-delay.conf.jinja

@@ -0,0 +1,2 @@
+[Service]
+ExecStartPre=/bin/sleep {{ salt['pillar.get']('salt:minion:service_start_delay', service_start_delay) }}