Hello and thank you for your time.
I need to create configuration file that this is the input:
2017-02-14T13:39:33+02:00 PulseSecure: 2017-02-14 13:39:33 - ive -
[10.16.4.225] dpnini(Users)[] - Testing Password realm restrictions
failed for dpnini/Users
and this is the required text file output:
{"timestamp":"2017-02-14T13:39:33+02:00
","vendor":"PulseSecure","localEventTime":"2017-02-14
13:39:33","userIP":"10.16.4.225","username":"dpnini","group":"Users","vpnMsg":"Testing
Password realm restrictions failed for dpnini/Users\r"}
All i know is that i start the logstash with "bin/logstash -f logstash-simple.conf"
also i know that the file that i need to change is YML file inside the config folder.
Thank you!
Logstash conf file (your logstash-simple.conf) is composed of three parts: input, filter, output. Input/output is source/destination of your data, while filter defines data transformation.
Check elastic page for samples:
https://www.elastic.co/guide/en/logstash/current/config-examples.html
What you actually need to do, is to write grok pattern inside filter to split your text into tokens/fields that you have in your json. Simple description of grok:
http://logz.io/blog/logstash-grok/
Related
I am looking for a way of reading property file in logstash config file so that I can do some data transformation based on the property file value? for example I can skip processing type 1 event and send to index a, process type 2 events and sent to index 2.
If I understand your question correctly, note that logstash will read all the files in your config directory. You can put different processing blocks in different config files, which makes for a nice separation of code. Be sure that each block is wrapped in a conditional so that they don't all run for all events.
I am using ELK stack, so using file input plugin in logstash i am working on it
at first i used file*.txt to match with file pattern
later i used masterfile.txt as a single file which has the data of all matching patterns
and now i am going back to file*.txt , but here i see the problem- I am seeing the data on kibana which is the date after the file*.txt is replaced with masterfile.txt but not the history,
I feel like i must understand the behavior of sincedb logstash here
also a possible solution to get the history data
Logstash stores information about the position of the last byte read in the file that contains the logs with sincedb_path. During the execution, Logstash starts reading the input file from the mentioned position.
Take into account 'start_position' and the name of the index ( Logstash -> output) if you want to create a new index with different logs.
https://www.elastic.co/guide/en/logstash/current/plugins-inputs-file.html#plugins-inputs-file-sincedb_path
I have the yml file which I used the "traslate" function to do lookup.
What was done is to translate a string like "superhost.com" to "found".
My problem is that if I were to add in more entries there entries will not be reflected.
For example
I add a "ultrahost.com" entry into the yml file while logstash is still running. Incoming logs with "ultrahost.com" will not be translated to "found". This will only work after I have restarted the logstash script.
There is a refresh_interval parameter to the translate plugin that can be used to specify how often to re-read the file. The default is 300 seconds (5 minutes). You can lower that to be whatever interval you think will satisfy how often that the file will be updated.
Is is possible to have Logstash to output events in Elasticsearch bulk API data format?
The idea is to do some heavy parsing on many machines (without direct connectivity to the ES node) and then feed the data manually into ES.
Thank for the help.
Maybe if you need change the flush_size in Logstash with your value:
https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-flush_size
Or send metadata in file using json codec and afterload directly on elasticsearch
https://www.elastic.co/guide/en/logstash/current/plugins-outputs-file.html
Logstash is a single-line type of system, and the bulk format is a multi-line format. Here are two ideas:
1) see if the file{} output message_format can contain a newline. This would allow you to output the meta data line and then the data line.
2) use logstash's clone{} to make a copy of each event. In the "original" event, use the file{} output with a message_format that looks like the first line of the bulk output (index, type, id). In the cloned copy, the default file{} output might work (or use the message_format with the exact format you need).
I have a project I am working on and wanted to try to hook it up to the ELK stack beginning with logstash. Essentially I have python writing this to a file named stockLog:
{'price': 30.98, 'timestamp': '2015-08-03 09:51:54', 'symbol':'FORTY',
'ceiling': Decimal('31.21'), 'floor': Decimal('30.68')}
I have logstash installed and (ideally) ready to run. My logstash.conf file looks like this:
input {
file { path => "/home/test001/stockLog"
start_position => beginning }
}
output {
stdout {}
file {
path => "/home/test001/testlog"
}
}
My goal is to actually be able to see how logstash is going to read the python dictionary before I install Elasticsearch and start keeping data. Essentially even though logstash has a lot of formatting options I would like to just have my python script do the lifting and put it in a format that is easiest to work with downstream.
My problem is that no matter what I change in the logstash.conf file I can't get anything to print to my terminal showing what logstash is doing. I get no errors but when I execute this command:
test001#test001:~$ sudo /opt/logstash/bin/logstash -f /opt/logstash/logstash.conf
I get a message saying logstash has started correctly and the options of typing into my terminal but no stdout showing what it did if anything with the dictionary in my stockLog file.
So far I have tried "" around the file name and not. I have added the file output which you can see above to see if it actually writes anything to that file even though I don't see output on my terminal (it does not) and I have tried using the codec => rubydebug to see if logstash just needed an idea of the format I wanted to see. Nothing shows me any sign that logstash is doing anything.
Any help would be greatly appreciated and I there is more information needed by all means let me know.
Thanks!
In the end the answer turned out to be three steps.
Like mentioned above I needed to stop overwriting the file and just append to it instead.
I used the json filter to have the data easily broken down the way I wanted to see it. Once converted into json with json.dumps in python the logstash json filter handled the data easily.
I realized that it is pointless to try and see what logstash is going to do prior to putting it into elasticsearch because it is extremely easy to remove the information if it isn't shaped right (I am to indoctrinated by permanent indexes in splunk sorry guys).