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How to cleanup a Gluster Heketi volume

I’m using gluster + heketi in my current kubernetes cluster, with it I give a persistent storage service on demand, it is easy to use, robust and simple.

How setup Haproxy with zero downtime reload from code source

if you are looking for a modern load balancer with zero downtime when you need to reload its configuration, HAProxy 1.8 and Linux kernel >=3.9 could take advantage of a new reload mechanism which can transfer sockets from the old process to the new process without dropping any connections.

Recover your grafana admin password using sqlite shell

One day you can lose your grafana admin password and probably you will desire to recover it rather than reinstall. If your grafana has been using sqlite as backend storage, the recover process is easy.

Custom openconnect vpn setup for use in Palo Alto appliances

Intro My company use the Palo Alto Networks appliance in order to offer a VPN service for us. Normally, I use openconnect or openvpn client when I needed to setup some VPN connection, but these clients don’t work with Palo Alto devices.