docker run -d -p 9200:9200 -p 9300:9300 -it -h elasticsearch --name elasticsearch elasticsearch
Verify the functionality:
curl http://localhost:9200/
docker run -d -p 5601:5601 -h kibana --name kibana --link elasticsearch:elasticsearch kibana
Verifying the functionality
curl http://localhost:9200/_cat/indices
Open up Kibana. As of now, you will not see any timestamp entry.
$mkdir /config-dir
Add the below entry:
$ cat logstash.conf
input {
stdin {}
}
output {
elasticsearch { hosts => ["elasticsearch:9200"] }
}
Now use it to setup Logstash container as shown below:
docker run -h logstash --name logstash --link elasticsearch:elasticsearch -it --rm -v "$PWD":/config-dir logstash -f /config-dir/logstash.conf
curl http://localhost:9200/_cat/indices
Try out random inputs like try1, try2 try3
Open up Kibana console and refresh. You will see a timestamp get added. Click on Discover to see the log entry try1,2,3
Create a logstash2.conf with the below entry:
input {tcp{
port => 8500 }
}
output { elasticsearch { hosts => ["elasticsearch:9200"] }
}
Run the below command:
docker run -d -p 8500:8500 -h logstash2 --name logstash2 --link elasticsearch:elasticsearch --rm -v "$PWD":/config-dir logstash -f /config-dir/logstash2.conf
Now use telnet command:
telnet hostname 8500
ehlo
Soon you will see the below logs under Kibana UI:
September 14th 2017, 08:45:37.510 @timestamp:September 14th 2017, 08:45:37.510 port:55144 @version:1 host:10.0.43.3 message:ehlo _id:AV5-Yn2vR2tqeamsYNY_ _type:logs _index:logstash-2017.09.14 _score: -
September 14th 2017, 08:45:33.955 @timestamp:September 14th 2017, 08:45:33.955 port:55144 @version:1 host:10.0.43.3 message: _id:AV5-Ym_TR2tqeamsYNY- _type:logs _index:logstash-2017.09.14 _score: -
September 14th 2017, 08:45:14.530 @timestamp:September 14th 2017, 08:45:14.530 port:60360 @version:1 host:10.0.43.2 message: _id:AV5-YiP0R2tqeamsYNY9 _type:logs _index:logstash-2017.09.14 _score: -
September 14th 2017, 08:45:14.529 @timestamp:September 14th 2017, 08:45:14.529 port:60360 @version:1 host:10.0.43.2 message:Referer: http://host4.labs.play-with-docker.com/p/abf1ba23-7fb8-49c0-98e8-e414f52d1b6d _id:AV5-YiP0R2tqeamsYNY8 _type:logs _index:logstash-2017.09.14 _score: -
</pre>
Say, you want to collect logs from /var/log/nginx/access.log to logstash. First run the below command:
$docker run -d -p 80:80 nginx -v /var/log:/var/log --name mynginx
Now run the below command to collect logs from mynginx container as shown below:
$docker run -d --volumes-from mynginx -v /config-dir/filebeat.yml:/usr/share/filebeat/filebeat.yml --name myfilebeat docker.elastic.co/beats/filebeat:5.6.0
This will use volume from mynginx container and then push it to filebeat container to push it to elasticsearch to be displayed under Kibana.