The information in this doc is based on Juju version 3.5.5, and may not accurately reflect other versions of Juju.
Summary
Displays log messages for a model.
Options
| Flag | Default | Usage |
|---|---|---|
-B, --no-browser-login |
false | Do not use web browser for authentication |
--color |
false | Force use of ANSI color codes |
--date |
false | Show dates as well as times |
--exclude-label |
Do not show log messages for these logging labels | |
--exclude-module |
Do not show log messages for these logging modules | |
-i, --include |
Only show log messages for these entities | |
--include-label |
Only show log messages for these logging labels | |
--include-module |
Only show log messages for these logging modules | |
-l, --level |
Log level to show, one of [TRACE, DEBUG, INFO, WARNING, ERROR] | |
--limit |
0 | Exit once this many of the most recent (possibly filtered) lines are shown |
--location |
false | Show filename and line numbers |
-m, --model |
Model to operate in. Accepts [<controller name>:]<model name>|<model UUID> | |
--ms |
false | Show times to millisecond precision |
-n, --lines |
10 | Show this many of the most recent (possibly filtered) lines, and continue to append |
--no-tail |
false | Stop after returning existing log messages |
--replay |
false | Show the entire (possibly filtered) log and continue to append |
--retry |
false | Retry connection on failure |
--retry-delay |
1s | Retry delay between connection failure retries |
--tail |
false | Wait for new logs |
--utc |
false | Show times in UTC |
-x, --exclude |
Do not show log messages for these entities |
Examples
Exclude all machine 0 messages; show a maximum of 100 lines; and continue to append filtered messages:
juju debug-log --exclude machine-0 --lines 100
Include only messages from the mysql/0 unit; show a maximum of 50 lines; and then exit:
juju debug-log --include mysql/0 --limit 50
Show all messages from the apache/2 unit or machine 1 and then exit:
juju debug-log --replay --include apache/2 --include machine-1 --no-tail
Show all juju.worker.uniter logging module messages that are also unit wordpress/0 messages, and then show any new log messages which match the filter and append:
juju debug-log --replay
--include-module juju.worker.uniter \
--include wordpress/0
Show all messages from the juju.worker.uniter module, except those sent from machine-3 or machine-4, and then stop:
juju debug-log --replay --no-tail
--include-module juju.worker.uniter \
--exclude machine-3 \
--exclude machine-4
To see all WARNING and ERROR messages and then continue showing any new WARNING and ERROR messages as they are logged:
juju debug-log --replay --level WARNING
Details
This command provides access to all logged Juju activity on a per-model basis. By default, the logs for the currently select model are shown.
Each log line is emitted in this format:
<entity> <timestamp> <log-level> <module>:<line-no> <message>
The “entity” is the source of the message: a machine or unit. The names for
machines and units can be seen in the output of juju status.
The ‘–include’ and ‘–exclude’ options filter by entity. The entity can be
a machine, unit, or application for vm models, but can be application only
for k8s models. These filters support wildcards * if filtering on the
entity full name (prefixed by <entity type>-)
The ‘–include-module’ and ‘–exclude-module’ options filter by (dotted) logging module name. The module name can be truncated such that all loggers with the prefix will match.
The ‘–include-label’ and ‘–exclude-label’ options filter by logging label.
The filtering options combine as follows:
- All --include options are logically ORed together.
- All --exclude options are logically ORed together.
- All --include-module options are logically ORed together.
- All --exclude-module options are logically ORed together.
- All --include-label options are logically ORed together.
- All --exclude-label options are logically ORed together.
- The combined --include, --exclude, --include-module, --exclude-module, –include-label and --exclude-label selections are logically ANDed to form the complete filter.