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Very simple devops tool to color and filter openstack's logs in your term from tail -F for example.

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openstack log colorizer

Very simple devops tool to color and filter openstack's logs in your term.

Openstack's logs can be very verbose and parse a huge unicolor text bloc could be painful.

openstack log colorizer is a small script with "no depends" (just standard python libs like re) that provide :

  • Color log lines
  • Filter log by level

Quick setup

Just add the script in your path :

wget -O /usr/local/bin/openstack_log_colorizer https://raw.githubusercontent.com/gaelL/openstack-log-colorizer/master/openstack_log_colorizer
chmod +x /usr/local/bin/openstack_log_colorizer

Basic usage

Color log from a file :

openstack_log_colorizer < logfile

Color log from piped output like from tail :

tail -F logfile | openstack_log_colorizer

Filter usage

usage: openstack_log_colorizer [-h] [-l level] [-e level [level ...]]
                               [-i level [level ...]]

optional arguments:
  -h, --help            show this help message and exit
  -l level, --level level
                        Set log level you want display
  -e level [level ...], --exclude level [level ...]
                        Set log level you want exclude
  -i level [level ...], --include level [level ...]
                        Set log level you only want display

You can play with 3 filter feature (level, include, exclude) :

  • All features are not case sensitive
  • By default if log line can't be parsed, the log line is displayed. Whatever options you have used.

Log level filter : Display log line with log level greater than or equal to that given log level. (log priority could be found in LOG_LEVEL variable.

cat log.sample | openstack_log_colorizer --level warning

Include only log level filter : Display log line with level included in your level list (example with error and trace).

cat log.sample | openstack_log_colorizer --include error TRACE

Exclude log level filter : Don't display log line in your exclude list (example with info and warning).

cat log.sample | openstack_log_colorizer --exclude INFO warning

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Very simple devops tool to color and filter openstack's logs in your term from tail -F for example.

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