elastic stack

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New elastic kubernetes script – deploy-elastick8s.sh

Posted on by jlim0930

Changelogs 2023/02/26 Added legacy APM server integration The old deploy-eck.sh script have grown and matured a bit and now it encompasses helm charts and native installs. I renamed the script to be more inclusive of its features. All of the older articles will reference this post. The new script is located deploy-elastick8s.sh This script was designed to easily stand up elastic and its stack on kubernetes in various modes to easily test and replicate issues for troubleshooting and to setup examples for various workloads. The deployments that this script creates is not for production use but to be used as… Continue Reading →

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How to increase space for your elasticsearch instances in k8s on ECK

Posted on by jlim0930

One of the most common issues of running elasticsearch on k8s is the need to increase space for your elasticsearch-data volume. It is very simple to do so lets demo it. I stood up an environment using my deploy-eck.sh script $ kubectl get pods,pvc NAME READY STATUS RESTARTS AGE pod/eck-lab-es-data-0 1/1 Running 0 112m pod/eck-lab-es-data-1 1/1 Running 0 112m pod/eck-lab-es-data-2 1/1 Running 0 112m pod/eck-lab-es-master-0 1/1 Running 0 112m pod/eck-lab-es-master-1 1/1 Running 0 112m pod/eck-lab-es-master-2 1/1 Running 0 8m12s pod/eck-lab-kb-794785d7f7-zxqlk 1/1 Running 0 110m NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE persistentvolumeclaim/elasticsearch-data-eck-lab-es-data-0 Bound pvc-4081bb0d-1664-46fe-97bd-08520075bbdc 1Gi RWO standard 112m persistentvolumeclaim/elasticsearch-data-eck-lab-es-data-1… 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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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 →

2

Elastic Cloud on kubernetes (ECK) on minikube

Posted on by jlim0930

ECK is Elastic cloud on kubernetes – Kubernetes Operator pattern that extends basic kubernetes orchestration to easily deploy, secure, upgrade Elasticsearch and the rest of the stack such as kibana, logstash, various beats, and much more. In my previous article I wrote about my kube.sh script which is a wrapper that installs a minikube environment to run your kubernetes projects. We will use the wrapper to deploy our kubernetes environment and start deploying elasticsearch using ECK. The steps below are not limited to my minikube wrapper script but you can follow the same process for any kubernetes environment. Lets get… Continue Reading →