Add directory based post/firstboot capability

el8 profiles gain post.d/firstboot.d capability

confluent_osdeploy/el8/profiles/default/scripts/firstboot.sh

@@ -15,6 +15,8 @@ export nodename mgr profile
 
 
 run_remote firstboot.custom
+# Firstboot scripts may be placed into firstboot.d, e.g. firstboot.d/01-firstaction.sh, firstboot.d/02-secondaction.sh
+run_remote_parts firstboot
 
 
 curl -X POST -d 'status: complete' -H "CONFLUENT_NODENAME: $nodename" -H "CONFLUENT_APIKEY: $apikey" https://$mgr/confluent-api/self/updatestatus

confluent_osdeploy/el8/profiles/default/scripts/functions

@@ -17,6 +17,13 @@ fetch_remote() {
     if [ $? != 0 ]; then echo $1 failed to download; return 1; fi
 }
 
+run_remote_parts() {
+    scriptlist=$(/usr/libexec/platform-python /etc/confluent/apiclient /confluent-api/self/scriptlist/$1|sed -e 's/^- //')
+    for script in $scriptlist; do
+        run_remote $1.d/$script
+    done
+}
+
 run_remote() {
     requestedcmd="'$*'"
     curlargs=""

confluent_osdeploy/el8/profiles/default/scripts/post.sh

@@ -33,3 +33,6 @@ run_remote_python add_local_repositories
 # run_remote example.sh
 # run_remote_python example.py
 run_remote post.custom
+
+# Also, scripts may be placed into 'post.d', e.g. post.d/01-runfirst.sh, post.d/02-runsecond.sh
+run_remote_parts post