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…
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…
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…
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…
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…
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…
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…
Roundcube is still around and keeps updated, for self-hosted enthusiast, it’s been one of the best free webmail available. It’s built on top of PHP, so we don’t need to depend on our Linux package to install the latest version,…
Fluentd is used by many companies around the log to process the logs, and then ship them to log collectors, such as Elasticsearch, Datadog, Dynatrace etc. The beauty of using docker for build and testing fluentd, we don’t need to…