1 files changed, 5 insertions, 1 deletions
diff --git a/cloudinit/config/cc_runcmd.py b/cloudinit/config/cc_runcmd.py
index 539cbd5d..1f75d6c5 100644
--- a/cloudinit/config/cc_runcmd.py
+++ b/cloudinit/config/cc_runcmd.py
@@ -42,6 +42,11 @@ schema = {
 
           all commands must be proper yaml, so you have to quote any characters
           yaml would eat (':' can be problematic)
+
+        .. note::
+
+          when writing files, do not use /tmp dir as it races with
+          systemd-tmpfiles-clean LP: #1707222. Use /run/somedir instead.
     """),
     'distros': distros,
     'examples': [dedent("""\
@@ -66,7 +71,6 @@ schema = {
             'additionalProperties': False,
             'minItems': 1,
             'required': [],
-            'uniqueItems': True
         }
     }
 }