Merge pull request #3407 from victormlg/isconnectable-documentation

Added documentation for isconnectable function

Author: olehermanse

reference/functions/isconnectable.markdown

@@ -0,0 +1,25 @@
+---
+layout: default
+title: isconnectable
+published: true
+---
+
+[%CFEngine_function_prototype(hostname, port, timeout)%]
+
+**Description:** Checks whether a port is connectable
+
+[%CFEngine_function_attributes(hostname, port, timeout)%]
+
+This function checks whether a `hostname`:`port` is connectable within `timeout` in seconds, before it times out. If `timeout` is 0, the connection blocks forever. `timeout` defaults to 30 s.
+
+**Example:**
+
+[%CFEngine_include_snippet(isconnectable.cf, #\+begin_src cfengine3, .*end_src)%]
+
+Output:
+
+[%CFEngine_include_snippet(isconnectable.cf, #\+begin_src\s+example_output\s*, .*end_src)%]
+
+**History:**
+
+* Introduced in 3.26.0