What is the pattern to match complete input in Logstash? - logstash

I am using ELK stack with filebeat.
filebeat.conf
filebeat:
prospectors:
-
paths:
- /home/ubuntu/logs_*
input_type: log
output:
logstash:
hosts: [${LOGSTASH_PORT_5044_TCP_ADDR}]
index: filebeat
console:
pretty: true
This is passing logs from a file logs_test
A sample log
{"name":"test","statusCode":0,"deployment":"production","hostname":"ip-random-address","level":30,"jobName":"testJob","date":"2016-07-18T03:15:02.075Z","jobType":"script","msg":"","time":"2016-07-18T03:15:02.076Z","v":0}
I want to make a HTTP call to an external URL when the field statusCode is 1
The entire log object is being passed to logstash.
My logstash config
input {
beats {
port => 5044
codec => "json"
}
}
output {
if ([statusCode] and [statusCode] == 1) {
http {
format=>"message"
http_method=>"post"
url=>"http://www.example.com"
message=>'{"text": "%{some_pattern_matcher}"}'
}
}
}
[Question] What should the "some_pattern_matcher" be to send all fields to HTTP request.
PS: %{mesage} does not work.

input {
beats {
port => 5044
codec => "json"
}
}
filter{
grok{
match => { "message" => "%{GREEDYDATA:data}" }
}
}
output {
if ([statusCode] and [statusCode] == 1) {
http {
format=>"message"
http_method=>"post"
url=>"http://www.example.com"
message=> %{data}
}
}
}
I haven't tried it out. So try this one and let me know if this solution works. If not please post the error(s) you got.

Related

Filebeat: How to remove log if some key or value exist?

filebeat version 7.17.3
i have 3 different logs for example
{"level":"debug","message":"Start proxy checking","module":"proxy","timestamp":"2022-05-18 23:22:15 +0200"}
{"level":"info","message":"Attempt to get proxy","module":"proxy","timestamp":"2022-05-18 23:22:17 +0200"}
{"campaign":"18","level":"warn","message":"Missed or empty list","module":"loader","session":"pYpifim","timestamp":"2022-05-18 23:27:46 +0200"}
how is it possible to not provide/filter out the log to logstash or elasticsearch if level is equal "info"
how is it possible to not provide/filter out the log to logstash or elasticsearch if key campaign does not exist?
in FileBeat i have following
processors:
- add_host_metadata:
when.not.contains.tags: forwarded
- add_cloud_metadata: ~
- add_docker_metadata: ~
- add_kubernetes_metadata: ~
- decode_json_fields:
fields: ["message"]
process_array: false
max_depth: 1
target: ""
overwrite_keys: true
add_error_key: true
- drop_fields:
fields: ["agent", "host", "log", "ecs", "input", "location"]
but with drop_fields i can remove some field and i need to not save completely log if key or value are exist!
in Logstash to delete those events is no problem - see below, but how to do this in filebeats?
/etc/logstash/conf.d/40-filebeat-to-logstash.conf
input {
beats {
port => 5044
include_codec_tag => false
}
}
filter {
if "Start proxy checking" in [message] {
drop { }
}
if "Attempt to get proxy" in [message] {
drop { }
}
}
output {
elasticsearch {
hosts => ["http://xxx.xxx.xxx.xxx:9200"]
# index => "myindex"
index => "%{[#metadata][beat]}-%{[#metadata][version]}-%{+yyyy.MM.dd}"
}
}
Thank you in Advance
in filebeat there is drop events processor,
processors:
- drop_event:
when:
condition
https://www.elastic.co/guide/en/beats/filebeat/7.17/drop-event.html

Two configs for logstash not working together

I am having a ELK setup for processing haproxy and nginx logs, for this i have used separate config files for logstash, the main data which i want from logs are the "content url" and the "response time", in haproxy the responsetime is in milliseconds like 1345 and in nginx the response time is in seconds like 1.23. In order to bring the response time in same format i changed the haproxy response time to seconds using ruby plugin in logstash. And i m getting the desired results from both when ran individually, in kibana also i changed the response time field to duration on which input is in seconds and output also in seconds. But when i run both configs together the response time for ngnix logs returns 0.000 value and i can see tag of "_grokparsefailure" in json response, but when i run the ngnix config individually to debug it everything works fine, in kibana dashboard i can see proper response time values.
Below is the config for my Nginx logstash Config:
input {
beats {
port => 5045
}
}
filter {
grok {
match => { "message" => "%{IPORHOST:clientip} - - \[%{HTTPDATE:timestamp}\] \"%{WORD:verb} %{URIPATHPARAM:content} HTTP/%{NUMBER:httpversion}\" %{NUMBER:response} %{NUMBER:response_bytes:int} \"-\" \"%{GREEDYDATA:junk}\" %{NUMBER:response_time}"}
}
date {
match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ]
}
}
output {
elasticsearch {
hosts => ["localhost:9200"]
}
}
Below is the config of my Haproxy logstash config:
input {
beats {
port => 5044
}
}
filter {
grok {
match => { "message" => "%{MONTH:month} %{MONTHDAY:date} %{TIME:time} %{WORD:[source]} %{WORD:[app]}\[%{DATA:[class]}\]: %{IPORHOST:[UE_IP]}:%{NUMBER:[UE_Port]} %{IPORHOST:[NATTED_IP]}:%{NUMBER:[NATTED_Source_Port]} %{IPORHOST:[NATTED_IP]}:%{NUMBER:[NATTED_Destination_Port]} %{IPORHOST:[WAN_IP]}:%{NUMBER:[WAN_Port]} \[%{HAPROXYDATE:[timestamp]}\] %{NOTSPACE:[frontend_name]}~ %{NOTSPACE:[backend_name]} %{NOTSPACE:[ty_name]}/%{NUMBER:[response_time]} %{NUMBER:[http_status_code]} %{NUMBER:[response_bytes]:int} - - ---- %{NOTSPACE:[df]} %{NOTSPACE:[df]} %{DATA:[domain_name]} %{DATA:[cache_status]} %{DATA:[domain_name]} %{URIPATHPARAM:[content]} HTTP/%{NUMBER:[http_version]}" }
}
date {
match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ]
}
ruby {
code => "event.set('response_time', event.get('response_time').to_f / 1000)"
}
}
output {
elasticsearch { hosts => ["localhost:9200"] }
stdout {
codec => rubydebug
}
}
I m suspecting the response_time pattern ie %{NUMBER:[response_time]} in haproxy and nginx is creating problem. Don't know what is causing this issue tried every possible thing.

How can Filebeat specify match rules to Logstash

I want to let Logstash'gork filter use the match rules which Filebeat give
Here is my Filebeat config:
filebeat.inputs:
- type: log
enabled: true
paths:
- /root/Log-test/test.log
fields:
"#metadata":
formatter: "%{TIMESTAMP_ISO8601:timestamp} - %{NOTSPACE:module} - %{LOGLEVEL:level} - %{NOTSPACE:filename} - %{GREEDYDATA:log_message}"
fields_under_root: true
output.logstash:
hosts: ["localhost:5045"]
Here is my Logstash config:
input {
beats {
port => "5045"
}
}
filter {
grok {
match => { "message" => "%{[#metadata][formatter]}" }
}
}
output {
file {
path => "/tmp/log-test.log"
codec => rubydebug { metadata => true }
}
}
So, i want the grok know my match rules content (the message field) is "%{TIMESTAMP_ISO8601:timestamp} - %{NOTSPACE:module} - %{LOGLEVEL:level} - %{NOTSPACE:filename} - %{GREEDYDATA:log_message}"
But the setting above do not work, I want to know how can i implement the funciton like this? or is it possible to make it?
Thanks!
From this posting, "Grok expressions with dynamic %{field} references aren't supported". The original author of that post opened a github issue, which is now here (and unresolved after a year).

Parsing json using logstash (ELK stack)

I have created a simple json like below
[
{
"Name": "vishnu",
"ID": 1
},
{
"Name": "vishnu",
"ID": 1
}
]
I am holding this values in file named simple.txt . Then i used file beat to listen the file and send the new updates to port 5043,on other side i started the log-stash service which listen to this port in order to parse and pass the json to elastic search.
log-stash is not processing the json values,it hangs in the middle.
logstash
input {
beats {
port => 5043
host => "0.0.0.0"
client_inactivity_timeout => 3600
}
}
filter {
json {
source => "message"
}
}
output {
stdout { codec => rubydebug }
}
filebeat config:
filebeat.prospectors:
- input_type: log
paths:
- filepath
output.logstash:
hosts: ["localhost:5043"]
Logstash output
**
Sending Logstash's logs to D:/elasticdb/logstash-5.6.3/logstash-5.6.3/logs which is now configured via log4j2.properties
[2017-10-31T19:01:17,574][INFO ][logstash.modules.scaffold] Initializing module {:module_name=>"fb_apache", :directory=>"D:/elasticdb/logstash-5.6.3/logstash-5.6.3/modules/fb_apache/configuration"}
[2017-10-31T19:01:17,578][INFO ][logstash.modules.scaffold] Initializing module {:module_name=>"netflow", :directory=>"D:/elasticdb/logstash-5.6.3/logstash-5.6.3/modules/netflow/configuration"}
[2017-10-31T19:01:18,301][INFO ][logstash.pipeline ] Starting pipeline {"id"=>"main", "pipeline.workers"=>2, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>5, "pipeline.max_inflight"=>250}
[2017-10-31T19:01:18,388][INFO ][logstash.inputs.beats ] Beats inputs: Starting input listener {:address=>"0.0.0.0:5043"}
[2017-10-31T19:01:18,573][INFO ][logstash.pipeline ] Pipeline main started
[2017-10-31T19:01:18,591][INFO ][org.logstash.beats.Server] Starting server on port: 5043
[2017-10-31T19:01:18,697][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
**
Every time when i am running log-stash using command
logstash -f logstash.conf
And since there is no processing of json i am stopping that service by pressing ctrl + c .
Please help me in finding the solution.Thanks in advance.
finally i got ended up with config like this.It works for me.
input
{
file
{
codec => multiline
{
pattern => '^\{'
negate => true
what => previous
}
path => "D:\elasticdb\logstash-tutorial.log\Test.txt"
start_position => "beginning"
sincedb_path => "D:\elasticdb\logstash-tutorial.log\null"
exclude => "*.gz"
}
}
filter {
json {
source => "message"
remove_field => ["path","#timestamp","#version","host","message"]
}
}
output {
elasticsearch { hosts => ["localhost"]
index => "logs"
"document_type" => "json_from_logstash_attempt3"
}
stdout{}
}
Json format:
{"name":"sachin","ID":"1","TS":1351146569}
{"name":"sachin","ID":"1","TS":1351146569}
{"name":"sachin","ID":"1","TS":1351146569}

logstash hangs with error sized_queue_timeout

We have a logstash pipeline in which numerous logstash-forwarders forward logs to a single logstash instance. Many times we have observed that the logstash hangs with the below error:-
[2016-07-22 03:01:12.619] WARN -- Concurrent::Condition: [DEPRECATED] Will be replaced with Synchronization::Object in v1.0.
called on: /opt/logstash-1.5.3/vendor/bundle/jruby/1.9/gems/logstash-input-lumberjack-1.0.2/lib/logstash/sized_queue_timeout.rb:16:in `initialize'
Exception in thread ">output" java.lang.UnsupportedOperationException
at java.lang.Thread.stop(Thread.java:869)
at org.jruby.RubyThread.exceptionRaised(RubyThread.java:1221)
at org.jruby.internal.runtime.RubyRunnable.run(RubyRunnable.java:112)
at java.lang.Thread.run(Thread.java:745)
Our logstash config looks like below:-
input {
lumberjack {
port => 6782
codec => json {}
ssl_certificate => "/opt/logstash-1.5.3/cert/logstash-forwarder.crt"
ssl_key => "/opt/logstash-1.5.3/cert/logstash-forwarder.key"
type => "lumberjack"
}
}
filter {
if [env] != "prod" and [env] != "common" {
drop {}
}
if [message] =~ /^\s*$/ {
drop { }
}
}
output {
if "_jsonparsefailure" in [tags] {
file {
path => "/var/log/shop/parse_error/%{env}/%{app}/%{app}_%{host}_%{+YYYY-MM-dd}.log"
}
} else {
kafka {
broker_list => ["kafka:9092"]
topic_id => "logstash_logs2"
}
}
}
On restarting the logstash it starts working again. Can some one let me know why this problem comes and how can we get around this without restarting logstash everytime?

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