exec
editexec
edit- Version: 3.1.0
- Released on: 2016-12-06
- Changelog
- Compatible: 5.1.1.1, 5.0.0, 2.4.1, 2.4.0, 2.3.4
This plugin does not ship with Logstash by default, but it is easy to install by running bin/logstash-plugin install logstash-output-exec
.
The exec output will run a command for each event received. Ruby’s
system()
function will be used, i.e. the command string will
be passed to a shell. You can use %{name}
and other dynamic strings
in the command to pass select fields from the event to the child
process. Example:
output { if [type] == "abuse" { exec { command => "iptables -A INPUT -s %{clientip} -j DROP" } } }
If you want it non-blocking you should use &
or dtach
or other such techniques. There is no timeout for the commands being
run so misbehaving commands could otherwise stall the Logstash
pipeline indefinitely.
Exercise great caution with %{name}
field placeholders.
The contents of the field will be included verbatim without any
sanitization, i.e. any shell metacharacters from the field values
will be passed straight to the shell.
Synopsis
editThis plugin supports the following configuration options:
Required configuration options:
exec { command => ... }
Available configuration options:
Details
edit
codec
edit- Value type is codec
-
Default value is
"plain"
The codec used for output data. Output codecs are a convenient method for encoding your data before it leaves the output, without needing a separate filter in your Logstash pipeline.
command
edit- This is a required setting.
- Value type is string
- There is no default value for this setting.
Command line to execute via subprocess. Use dtach
or screen
to
make it non blocking. This value can include %{name}
and other
dynamic strings.
enable_metric
edit- Value type is boolean
-
Default value is
true
Disable or enable metric logging for this specific plugin instance by default we record all the metrics we can, but you can disable metrics collection for a specific plugin.
id
edit- Value type is string
- There is no default value for this setting.
Add a unique ID
to the plugin instance, this ID
is used for tracking
information for a specific configuration of the plugin.
output { stdout { id => "ABC" } }
If you don’t explicitely set this variable Logstash will generate a unique name.