One of our internal production is running an OpenShift 3.7 cluster. As OKD 3.10 is rolling out, 3.7 is far too old and missing some useful new features. "Let's get it upgraded!" I shouted out, and nightmares started too to pour out. How did I break it? How should I fix it?
In docker containers, volumes could be mounted as a file or a path. Docker volumes could be even shared among containers, and provides same experience upon different backends.
Grafana has an official docker image. Though permission problems occurred in previous versions, it can running flawlessly. There is also an example in OKD. We will start with the examples, but also do further configuration with data sources and dashboards.
By default, Fedora server enables strict reverse path validation. It is indeed very safe but will also become a rabbit hole for those who are not very familiar with this feature.
Fedora Workstation is a up-to-date and easy-to-use GNU/Linux distribution. After installing Fedora Workstation 28, some tweaking work could be done to make the system more comfortable.