Fluentbit is created as a fluentd successor for cloud native, which use less memory and faster to process the logs. To make is easy managing fluentbit in Kubernetes, like update the config, reload the pod, etc we’ll use fluent-operator. Let’s setup the fluent-operator from scratch. Deploy fluent-operator and fluentbit To deploy fluent-operator and fluent bit, […]
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How To Update Docker Image UID/GID User
Many companies with dedicated security team, requires the UID user used by docker images greater than 1000 to avoid conflict with host id. By default, Linux will assign 1000 UID for the first non-root non-system user account. For docker images that use ENTRYPOINT we need to use the command # command is command line that […]
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How To Install Latest WordPress on Rocky Linux 9
In this tutorial, we’ll learn how to install the latest version of WordPress using Rocky Linux 9. Before doing this tutorial, you’ll need a domain name and Linux server with Rocky Linux 9 installed. It’ll take maximum 30 minutes to finish this tutorial, so stay tuned and take the necessary food and drink to accompany […]
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How to Manage Grafana Users with Keycloak OpenID
In this tutorial, we’ll use Keycloak to manage Grafana users. Keycloak is a well-known application in SSO (Single Sign On) space, it can handle SAML and OpenID (OAuth), depending on your company internal, you can use LDAP in Keycloak or Google Workspace as the user base if your company uses Google Workspace for email. Since […]
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How to Cleanup Docker Images and Volumes
If you are playing around with many docker images, the storage may be fillup in no time. Then it’s time to do the cleaning up of all images and volumes. But please really really careful, because this command will delete everything that docker created, no matter whether it’s still running or not. 1. Delete container […]
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How To Upgrade Debian to Debian 11 Bullseye
Debian 9 will end of life (EOL) in a few months, if you can’t re-install the Debian and copy the files over then upgrade is another option for you. The first rule before doing an upgrade, back up the important files. The system sometimes failed, but for sure it’ll fail, time will tell when it […]
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How To Run MariaDB High Availability Cluster using Galera
When a single MariaDB/MySQL server is no longer able to serve the traffic, it’s time to upgrade to a more reliable and easy to upgrade database server. For scaling MariaDB we can use Galera which is already included in mariadb-server package in Debian 11. Galera doesn’t provide a way to balance the connection from the […]
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How To Install Docker and Minikube for Kubernetes on Ubuntu 20.04
Minikube is a defacto for testing Kubernetes on the local computer. It has all the basic features from Kubernetes, and it’s raw, no plugin or customized feature added. So if it’s working on Minikube, it should run on managed Kubernetes engines like Google Kubernetes Engine, Amazon Elastic Kubernetes Service (EKS), Azure Kubernetes Service (AKS) etc […]
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How To Install Elastic Stack 8 on Debian 11
In this tutorial, we’ll install Elasticsearch, Kibana, and Logstash which is usually called Elastic Stack. Elasticsearch is usually used for centralized logging, its competitor like Datadog, Sumologic etc. When installing Elastic Stack, we must use the same version across all applications. In this tutorial, we’ll install Kibana 8.0.1, Elasticsearch 8.0.1 and Logstash 8.0.1, which is […]
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How to Build and Install Latest Smokeping on Ubuntu 20.04
Smokeping is the old-school tool for monitoring website/IP by using PING. Many ISP around the world rely on Smokeping to monitor their upstream/downstream IP. The stability and low memory foodprint have been my favorite since I know the Smokeping. The latest version of Smokeping (2.8) 2.8.2 at this time, not available on Ubuntu 20.04, so […]