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New elastic kubernetes script – deploy-elastick8s.sh

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 lab or test environments. This post will… Continue Reading

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Elastic Fleet Server & elastic-agent common troubleshooting

Common troubleshooting items for any fleet & elastic-agent issues can be found on https://www.elastic.co/guide/en/fleet/current/fleet-troubleshooting.html however there are a few items that I would like to add. When you start the elastic-agent on an endpoint and even if you have everything configured for your elastic-agent, the right policy, integrations, etc however no data is going into elasticsearch. The most common issue is that there is something wrong with your fleet settings. This can be edited from kibana -> fleet -> settings. Either your ES endpoint / Fleet server endpoint / Advanced YAML settings are wrong or there might even be a… Continue Reading

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Fleet server with logstash output – elastic-agent

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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elasticsearch stack monitoring on kubernetes(ECK)

UPDATE: Since ECK operator 1.7 there is a new way to deploy stack monitoring. I’ve added the section at the end to cover for this. The old method still works and depending on your use case you can still use the old method versus new. The main difference between the OLD and NEW is that the OLD method uses filebeat and metricbeat pods while the new method uses filebeat and metricbeat sidecar containers. Lets get started with monitoring your elastic stack in kubernetes. There are multiple ways of doing this and I will divide this up into 3 sections, using… Continue Reading

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elasticsearch 8.x configure roles and users for stack monitoring

A lot of changes were made with elasticsearch 8.0 release but the main one that affected me the most was the ability to use the default elastic(superuser role) to access system indices. According to https://www.elastic.co/guide/en/elasticsearch/reference/current/release-highlights.html#_better_protection_for_system_indices we no longer have write access to system indices with the superuser role. When configuring stack monitoring using metricbeats this is an issue if you’ve been just using the elastic user to configure the monitoring. You can add allow_restricted_indices to the role to enable it back however its the lazy and insecure method. I’ve summarized the creation of roles and users for metricbeats and filebeats… Continue Reading

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How to run setup for various beats(filebeat, metricbeat, & more) in kubernetes to load dashboards and more

Whenever you install beats or update beats its best if you run the setup so that the setup will update your index templates, ILM, visualizations, etc. I found that its always best before installing or upgrading to use a seed host to just run the setup before deploying or updating across your environment and to turn off template updates and dashboard loading on the beats locally so that your elasticsearch cluster is not flooded. In a baremetal environment this is easy to do but in docker and in kubernetes it gets a bit difficult. Sure you can setup a initContainer… Continue Reading