18551 Agent freebsd: add chrony section

Thanks crpb for contributing!

Closes #836
CMK-24636

Change-Id: I2af9663980407e80445bef2dbac9374fcc0dd500

Author: crpb

.werks/18551.md

@@ -0,0 +1,14 @@
+[//]: # (werk v2)
+# Agent freebsd: add chrony section
+
+key        | value
+---------- | ---
+date       | 2025-08-06T13:53:32+00:00
+version    | 2.5.0b1
+class      | feature
+edition    | cre
+component  | checks
+level      | 1
+compatible | yes
+
+Thanks crpb for contributing!

agents/check_mk_agent.freebsd

@@ -657,6 +657,11 @@ run_purely_synchronous_sections() {
         ntpq -np | sed -e 1,2d -e 's/^\(.\)/\1 /' -e 's/^ /%/'
     fi
 
+    if inpath chronyc; then
+        echo '<<<chrony>>>'
+        chronyc -n tracking | cat || true
+    fi
+
     # Number of TCP connections in the various states
     echo '<<<tcp_conn_stats>>>'
     netstat -na | awk ' /^tcp/ { c[$6]++; } END { for (x in c) { print x, c[x]; } }'