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Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>
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@ -3,7 +3,7 @@ date: "2019-04-02T17:06:00+01:00"
title: "Advanced: Logging Configuration"
slug: "logging-configuration"
weight: 55
toc: true
toc: false
draft: false
menu:
sidebar:
@ -17,6 +17,8 @@ menu:
The logging framework has been revamped in Gitea 1.9.0.
**Table of Contents**
{{< toc >}}
## Log Groups
@ -24,11 +26,11 @@ The logging framework has been revamped in Gitea 1.9.0.
The fundamental thing to be aware of in Gitea is that there are several
log groups:
* The "Default" logger
* The Macaron logger
* The Router logger
* The Access logger
* The XORM logger
- The "Default" logger
- The Macaron logger
- The Router logger
- The Access logger
- The XORM logger
There is also the go log logger.
@ -55,11 +57,11 @@ which inherits from the sublogger `[log.sublogger]` section and from the
generic `[log]` section, but there are certain default values. These will
not be inherited from the `[log]` section:
* `FLAGS` is `stdflags` (Equal to
`date,time,medfile,shortfuncname,levelinitial`)
* `FILE_NAME` will default to `%(ROOT_PATH)/gitea.log`
* `EXPRESSION` will default to `""`
* `PREFIX` will default to `""`
- `FLAGS` is `stdflags` (Equal to
`date,time,medfile,shortfuncname,levelinitial`)
- `FILE_NAME` will default to `%(ROOT_PATH)/gitea.log`
- `EXPRESSION` will default to `""`
- `PREFIX` will default to `""`
The provider type of the sublogger can be set using the `MODE` value in
its subsection, but will default to the name. This allows you to have
@ -82,11 +84,11 @@ Each output sublogger for this logger is configured in
which will not be inherited from the `[log]` or relevant
`[log.sublogger]` sections:
* `FLAGS` is `stdflags` (Equal to
`date,time,medfile,shortfuncname,levelinitial`)
* `FILE_NAME` will default to `%(ROOT_PATH)/macaron.log`
* `EXPRESSION` will default to `""`
* `PREFIX` will default to `""`
- `FLAGS` is `stdflags` (Equal to
`date,time,medfile,shortfuncname,levelinitial`)
- `FILE_NAME` will default to `%(ROOT_PATH)/macaron.log`
- `EXPRESSION` will default to `""`
- `PREFIX` will default to `""`
NB: You can redirect the macaron logger to send its events to the gitea
log using the value: `MACARON = ,`
@ -113,10 +115,10 @@ Each output sublogger for this logger is configured in
which will not be inherited from the `[log]` or relevant
`[log.sublogger]` sections:
* `FILE_NAME` will default to `%(ROOT_PATH)/router.log`
* `FLAGS` defaults to `date,time`
* `EXPRESSION` will default to `""`
* `PREFIX` will default to `""`
- `FILE_NAME` will default to `%(ROOT_PATH)/router.log`
- `FLAGS` defaults to `date,time`
- `EXPRESSION` will default to `""`
- `PREFIX` will default to `""`
NB: You can redirect the router logger to send its events to the Gitea
log using the value: `ROUTER = ,`
@ -138,10 +140,10 @@ Each output sublogger for this logger is configured in
which will not be inherited from the `[log]` or relevant
`[log.sublogger]` sections:
* `FILE_NAME` will default to `%(ROOT_PATH)/access.log`
* `FLAGS` defaults to `` or None
* `EXPRESSION` will default to `""`
* `PREFIX` will default to `""`
- `FILE_NAME` will default to `%(ROOT_PATH)/access.log`
- `FLAGS` defaults to `` or None
- `EXPRESSION` will default to `""`
- `PREFIX` will default to `""`
If desired the format of the Access logger can be changed by changing
the value of the `ACCESS_LOG_TEMPLATE`.
@ -160,11 +162,11 @@ This value represent a go template. It's default value is:
The template is passed following options:
* `Ctx` is the `macaron.Context`
* `Identity` is the `SignedUserName` or `"-"` if the user is not logged
in
* `Start` is the start time of the request
* `ResponseWriter` is the `macaron.ResponseWriter`
- `Ctx` is the `macaron.Context`
- `Identity` is the `SignedUserName` or `"-"` if the user is not logged
in
- `Start` is the start time of the request
- `ResponseWriter` is the `macaron.ResponseWriter`
Caution must be taken when changing this template as it runs outside of
the standard panic recovery trap. The template should also be as simple
@ -187,31 +189,31 @@ Each output sublogger for this logger is configured in
which will not be inherited from the `[log]` or relevant
`[log.sublogger]` sections:
* `FILE_NAME` will default to `%(ROOT_PATH)/xorm.log`
* `FLAGS` defaults to `date,time`
* `EXPRESSION` will default to `""`
* `PREFIX` will default to `""`
- `FILE_NAME` will default to `%(ROOT_PATH)/xorm.log`
- `FLAGS` defaults to `date,time`
- `EXPRESSION` will default to `""`
- `PREFIX` will default to `""`
## Log outputs
Gitea provides 4 possible log outputs:
* `console` - Log to `os.Stdout` or `os.Stderr`
* `file` - Log to a file
* `conn` - Log to a keep-alive TCP connection
* `smtp` - Log via email
- `console` - Log to `os.Stdout` or `os.Stderr`
- `file` - Log to a file
- `conn` - Log to a keep-alive TCP connection
- `smtp` - Log via email
Certain configuration is common to all modes of log output:
* `LEVEL` is the lowest level that this output will log. This value
is inherited from `[log]` and in the case of the non-default loggers
from `[log.sublogger]`.
* `STACKTRACE_LEVEL` is the lowest level that this output will print
a stacktrace. This value is inherited.
* `MODE` is the mode of the log output. It will default to the sublogger
name. Thus `[log.console.macaron]` will default to `MODE = console`.
* `COLORIZE` will default to `true` for `console` as
described, otherwise it will default to `false`.
- `LEVEL` is the lowest level that this output will log. This value
is inherited from `[log]` and in the case of the non-default loggers
from `[log.sublogger]`.
- `STACKTRACE_LEVEL` is the lowest level that this output will print
a stacktrace. This value is inherited.
- `MODE` is the mode of the log output. It will default to the sublogger
name. Thus `[log.console.macaron]` will default to `MODE = console`.
- `COLORIZE` will default to `true` for `console` as
described, otherwise it will default to `false`.
### Non-inherited default values
@ -233,23 +235,23 @@ printed before each message. It is a comma-separated string set. The order of va
Possible values are:
* `none` or `,` - No flags.
* `date` - the date in the local time zone: `2009/01/23`.
* `time` - the time in the local time zone: `01:23:23`.
* `microseconds` - microsecond resolution: `01:23:23.123123`. Assumes
time.
* `longfile` - full file name and line number: `/a/b/c/d.go:23`.
* `shortfile` - final file name element and line number: `d.go:23`.
* `funcname` - function name of the caller: `runtime.Caller()`.
* `shortfuncname` - last part of the function name. Overrides
`funcname`.
* `utc` - if date or time is set, use UTC rather than the local time
zone.
* `levelinitial` - Initial character of the provided level in brackets eg. `[I]` for info.
* `level` - Provided level in brackets `[INFO]`
* `medfile` - Last 20 characters of the filename - equivalent to
`shortfile,longfile`.
* `stdflags` - Equivalent to `date,time,medfile,shortfuncname,levelinitial`
- `none` or `,` - No flags.
- `date` - the date in the local time zone: `2009/01/23`.
- `time` - the time in the local time zone: `01:23:23`.
- `microseconds` - microsecond resolution: `01:23:23.123123`. Assumes
time.
- `longfile` - full file name and line number: `/a/b/c/d.go:23`.
- `shortfile` - final file name element and line number: `d.go:23`.
- `funcname` - function name of the caller: `runtime.Caller()`.
- `shortfuncname` - last part of the function name. Overrides
`funcname`.
- `utc` - if date or time is set, use UTC rather than the local time
zone.
- `levelinitial` - Initial character of the provided level in brackets eg. `[I]` for info.
- `level` - Provided level in brackets `[INFO]`
- `medfile` - Last 20 characters of the filename - equivalent to
`shortfile,longfile`.
- `stdflags` - Equivalent to `date,time,medfile,shortfuncname,levelinitial`
### Console mode
@ -267,30 +269,30 @@ to the provided `ROOT_PATH` in the master `[log]` section.
Other values:
* `LOG_ROTATE`: **true**: Rotate the log files.
* `MAX_SIZE_SHIFT`: **28**: Maximum size shift of a single file, 28 represents 256Mb.
* `DAILY_ROTATE`: **true**: Rotate logs daily.
* `MAX_DAYS`: **7**: Delete the log file after n days
* `COMPRESS`: **true**: Compress old log files by default with gzip
* `COMPRESSION_LEVEL`: **-1**: Compression level
- `LOG_ROTATE`: **true**: Rotate the log files.
- `MAX_SIZE_SHIFT`: **28**: Maximum size shift of a single file, 28 represents 256Mb.
- `DAILY_ROTATE`: **true**: Rotate logs daily.
- `MAX_DAYS`: **7**: Delete the log file after n days
- `COMPRESS`: **true**: Compress old log files by default with gzip
- `COMPRESSION_LEVEL`: **-1**: Compression level
### Conn mode
* `RECONNECT_ON_MSG`: **false**: Reconnect host for every single message.
* `RECONNECT`: **false**: Try to reconnect when connection is lost.
* `PROTOCOL`: **tcp**: Set the protocol, either "tcp", "unix" or "udp".
* `ADDR`: **:7020**: Sets the address to connect to.
- `RECONNECT_ON_MSG`: **false**: Reconnect host for every single message.
- `RECONNECT`: **false**: Try to reconnect when connection is lost.
- `PROTOCOL`: **tcp**: Set the protocol, either "tcp", "unix" or "udp".
- `ADDR`: **:7020**: Sets the address to connect to.
### SMTP mode
It is not recommended to use this logger to send general logging
messages. However, you could perhaps set this logger to work on `FATAL`.
* `USER`: User email address to send from.
* `PASSWD`: Password for the smtp server.
* `HOST`: **127.0.0.1:25**: The SMTP host to connect to.
* `RECEIVERS`: Email addresses to send to.
* `SUBJECT`: **Diagnostic message from Gitea**
- `USER`: User email address to send from.
- `PASSWD`: Password for the smtp server.
- `HOST`: **127.0.0.1:25**: The SMTP host to connect to.
- `RECEIVERS`: Email addresses to send to.
- `SUBJECT`: **Diagnostic message from Gitea**
## Debugging problems
@ -386,7 +388,7 @@ Windows. Terminal sniffing will occur on Windows and if it is
determined that we are running on a terminal capable of color we will
colorize.
Further, on *nix it is becoming common to have file logs that are
Further, on \*nix it is becoming common to have file logs that are
colored by default. Therefore file logs will be colorised by default
when not running on Windows.
@ -404,14 +406,14 @@ string of bytes which should represent a color and second set of reset
bytes. Pointers were chosen to prevent copying of large numbers of
values. There are several helper methods:
* `log.NewColoredValue` takes a value and 0 or more color attributes
that represent the color. If 0 are provided it will default to a cached
bold. Note, it is recommended that color bytes constructed from
attributes should be cached if this is a commonly used log message.
* `log.NewColoredValuePointer` takes a pointer to a value, and
0 or more color attributes that represent the color.
* `log.NewColoredValueBytes` takes a value and a pointer to an array
of bytes representing the color.
- `log.NewColoredValue` takes a value and 0 or more color attributes
that represent the color. If 0 are provided it will default to a cached
bold. Note, it is recommended that color bytes constructed from
attributes should be cached if this is a commonly used log message.
- `log.NewColoredValuePointer` takes a pointer to a value, and
0 or more color attributes that represent the color.
- `log.NewColoredValueBytes` takes a value and a pointer to an array
of bytes representing the color.
These functions will not double wrap a `log.ColoredValue`. They will
also set the `resetBytes` to the cached `resetBytes`.
@ -467,9 +469,9 @@ You should then add `newOneLogService` to `NewServices()` in
Gitea includes built-in log rotation, which should be enough for most deployments. However, if you instead want to use the `logrotate` utility:
- Disable built-in log rotation by setting `LOG_ROTATE` to `false` in your `app.ini`.
- Install `logrotate`.
- Configure `logrotate` to match your deployment requirements, see `man 8 logrotate` for configuration syntax details. In the `postrotate/endscript` block send Gitea a `USR1` signal via `kill -USR1` or `kill -10`, or run `gitea manager logging release-and-reopen` (with the appropriate environment). Ensure that your configurations apply to all files emitted by Gitea loggers as described in the above sections.
- Always do `logrotate /etc/logrotate.conf --debug` to test your configurations.
- Disable built-in log rotation by setting `LOG_ROTATE` to `false` in your `app.ini`.
- Install `logrotate`.
- Configure `logrotate` to match your deployment requirements, see `man 8 logrotate` for configuration syntax details. In the `postrotate/endscript` block send Gitea a `USR1` signal via `kill -USR1` or `kill -10`, or run `gitea manager logging release-and-reopen` (with the appropriate environment). Ensure that your configurations apply to all files emitted by Gitea loggers as described in the above sections.
- Always do `logrotate /etc/logrotate.conf --debug` to test your configurations.
The next `logrotate` jobs will include your configurations, so no restart is needed. You can also immediately reload `logrotate` with `logrotate /etc/logrotate.conf --force`.