server

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Upgrading stack, fleet, elastic-agents in k8s running with ECK

Posted on by jlim0930

Lets say you are running your elastic stack in k8s with ECK and you need to upgrade your environment, how would you do it and in what order? ECK operator elasticsearch kibana fleet-server elastic-agent I will use my deploy-elastick8s.sh script to deploy a fleet deployment (elasticsearch + kibana + fleet server + elastic-agents running as daemonset). I will install ECK operator 2.7.0 and stack 8.6.2 and will upgrade to 8.7.0 > ./deploy-elastick8s.sh fleet 8.6.2 2.7.0 [DEBUG] jq found [DEBUG] docker found & running [DEBUG] kubectl found [DEBUG] openssl found [DEBUG] container image docker.elastic.co/elasticsearch/elasticsearch:8.6.2 is valid [DEBUG] ECK 2.7.0 version validated.… Continue Reading →

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Fun things with Elastic’s Fleet server & elastic-agent

Posted on by jlim0930

There are many fun things we can do with the fleet server & elastic-agent To understand how to edit and change settings to do fun things with fleet server, first you have to understand how fleet server works with kibana & elasticsearch and elastic-agent. Fleet server itself is elastic-agent that runs in a server mode. It needs to communicate with both kibana and elasticsearch as well as elastic-agent. It uses elasticsearch as its config manager to store configurations so that it can configure & keep track of elastic-agents that is registered against it. Kibana is used to configure fleet server,… Continue Reading →

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deploy-eck update 1

Posted on by jlim0930

OUTDATED – Please use this link for the new script and instructions https://www.gooksu.com/2022/09/new-elastic-kubernetes-script-deploy-elastick8s-sh/ I developed the deploy-eck.sh script to easily deploy the elastic stack in k8s to quickly test things. Did a quick update to the script. operator mode. Now you can run the script just to deploy the operator only and apply a trial license. You can develop your own test cases etc in this mode. If you work out of ~/eckstack and name your manifest files *.yaml when you run the deploy-eck.sh cleanup it will cleanup all of your items as well. > ./deploy-eck.sh cleanup ********** Cleaning up… Continue Reading →

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Fleet server with logstash output – elastic-agent

Posted on by jlim0930

I think one of the biggest issue with fleet and elastic-agent was that it was limited on the outputs so if you had tons and tons of elastic-agents in the wild it would all connect back to your elasticsearch and can overwhelm the cluster. Starting 8.2 of elasticsearch logstash output type was introduced.. it is still in BETA at this time but I just tried it and it worked very nicely! The steps to setup the logstash output is listed on https://www.elastic.co/guide/en/fleet/8.2/secure-logstash-connections.html but I wanted to try it out and document it. Install & configure logstash Install yum install logstash-8.2.2… Continue Reading →

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Create secrets to use with your elastic stack to create keystore in kubernetes – minio example – helm example included

Posted on by jlim0930

For this example I will stand up a very simple minio server on my localhost. Create kubernetes secrets for the s3.client.default.access_key and s3.client.default.secret_key. Configure my elasticsearch pod with initContainer to install the repository-s3 plugin and secureSettings to create the keystore. minio server This is a very simple, not secure setup just for testing $ mkdir data $ wget https://dl.min.io/server/minio/release/linux-amd64/minio $ chmod +x minio $ ./minio server ./data API: http://192.168.1.251:9000 http://172.17.0.1:9000 http://192.168.122.1:9000 http://192.168.49.1:9000 http://127.0.0.1:9000 RootUser: minioadmin RootPass: minioadmin Console: http://192.168.1.251:36012 http://172.17.0.1:36012 http://192.168.122.1:36012 http://192.168.49.1:36012 http://127.0.0.1:36012 RootUser: minioadmin RootPass: minioadmin Command-line: https://docs.min.io/docs/minio-client-quickstart-guide $ mc alias set myminio http://192.168.1.251:9000 minioadmin minioadmin Instead of getting… Continue Reading →