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-rw-r--r--cloudinit/util.py20
1 files changed, 15 insertions, 5 deletions
diff --git a/cloudinit/util.py b/cloudinit/util.py
index deac8c8d..cd1cc1a4 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -360,11 +360,21 @@ def multi_log(text, console=True, stderr=True,
if stderr:
sys.stderr.write(text)
if console:
- # Don't use the write_file since
- # this might be 'sensitive' info (not debug worthy?)
- with open('/dev/console', 'wb') as wfh:
- wfh.write(text)
- wfh.flush()
+ conpath = "/dev/console"
+ if os.path.exists(conpath):
+ with open(conpath, 'wb') as wfh:
+ wfh.write(text)
+ wfh.flush()
+ else:
+ # A container may lack /dev/console (arguably a container bug). If
+ # it does not exist, then write output to stdout. this will result
+ # in duplicate stderr and stdout messages if stderr was True.
+ #
+ # even though upstart or systemd might have set up output to go to
+ # /dev/console, the user may have configured elsewhere via
+ # cloud-config 'output'. If there is /dev/console, messages will
+ # still get there.
+ sys.stdout.write(text)
if log:
if text[-1] == "\n":
log.log(log_level, text[:-1])