CheckList

The following plugin looks up if a value in a specified list exists and then allows the addition of a record to indicate if found. Introduced in version 1.8.4

Configuration Parameters
The plugin supports the following configuration parameters
Key
Description
file
The single value file that Fluent Bit will use as a lookup table to determine if the specified lookup_key exists
lookup_key
The specific key to look up and determine if it exists, supports record accessor
record
The record to add if the lookup_key is found in the specified file. Note you may add multiple record parameters.
Example Configuration
1
[INPUT]
2
    name           tail
3
    tag            test1
4
    path           test1.log
5
    read_from_head true
6
    parser         json
7
​
8
[FILTER]
9
    name       checklist
10
    match      test1
11
    file       ip_list.txt
12
    lookup_key $remote_addr
13
    record     ioc    abc
14
    record     badurl null
15
    log_level  debug
16
​
17
[OUTPUT]
18
    name       stdout
19
    match      test1
Copied!
In the following configuration we will read a file test1.log that includes the following values
1
{"remote_addr": true, "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
2
{"remote_addr": "7.7.7.2", "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
3
{"remote_addr": "7.7.7.3", "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
4
{"remote_addr": "7.7.7.4", "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
5
{"remote_addr": "7.7.7.5", "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
6
{"remote_addr": "7.7.7.6", "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
7
{"remote_addr": "7.7.7.7", "ioc":"false", "url":"https://badurl.com/payload.htm","badurl":"no"}
Copied!
Additionally, we will use the following lookup file which contains a list of malicious IPs (ip_list.txt)
1
1.2.3.4
2
6.6.4.232
3
7.7.7.7
Copied!
In the configuration we are using $remote_addr as the lookup key and 7.7.7.7 is malicious. This means the record we would output for the last record would look like the following
1
{"remote_addr": "7.7.7.7", "ioc":"abc", "url":"https://badurl.com/payload.htm","badurl":"null"}
Copied!

AWS Metadata

Expect

Last modified 15d ago

Export as PDF

Copy link

Contents

Configuration Parameters

Example Configuration