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

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

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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

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Rescuing pods from CrashLoopBackOff

When pods behave badly in your cluster, looping over and over, it is known as CrashLoopBackOff. If the pod contains important data or you just need to edit something on the pod to get it fixed like running some checker on a program installed on the pod or moving things around or whatever the reason is but you need to get into the pod to fix it but there is no way you can just kubectl -n namespace exec -it name bash to it then what do you do? dang you CrashLoopBackOff!! initContainer method Advantage: the pod runs before the… Continue Reading

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Elastic Cloud on kubernetes (ECK) on minikube

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