Restore log colors under devstack/systemd
One of the pending issues with the conversion to systemd was the loss of
log coloring. It turns out that journalctl by default strips out
characters it considers "unprintable" - including the color codes
emitted by the old-style logging. However, journalctl can be made to
print them by adding the `-a` flag.
This change makes devstack's log formatter conf settings include color
codes like the old screen-based setup used to
We also remove stackrc's setting of JOURNALCTL_F, whose usage was
removed via I6af6d1857effaf662a9d72bd394864934eacbe70.
Change-Id: I2401e267913a24d18dae355aa933072dbbdab1d8
diff --git a/doc/source/systemd.rst b/doc/source/systemd.rst
index efe79e4..60a7719 100644
--- a/doc/source/systemd.rst
+++ b/doc/source/systemd.rst
@@ -109,6 +109,17 @@
journalctl -f -o short-precise --unit devstack@n-cpu.service
+By default, journalctl strips out "unprintable" characters, including
+ASCII color codes. To keep the color codes (which can be interpreted by
+an appropriate terminal/pager - e.g. ``less``, the default)::
+
+ journalctl -a --unit devstack@n-cpu.service
+
+When outputting to the terminal using the default pager, long lines
+appear to be truncated, but horizontal scrolling is supported via the
+left/right arrow keys.
+
+See ``man 1 journalctl`` for more.
Known Issues
============
@@ -137,13 +148,6 @@
Future Work
===========
-log colorizing
---------------
-
-We lose log colorization through this process. We might want to build
-a custom colorizer that we could run journalctl output through
-optionally for people.
-
user units
----------