Open Source

Linux

Simple home lab Kubernetes cluster deployment

Before this note Recently I have build a in house tower server for self use, development, experiment of things. I could try Kubernetes labs or Public OpenShift infrastructure but the

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Sakuragawa Yuugiri

15 Oct 2019 · 8 min read

Open Source

Adding Footnotes to GitHub-flavored Markdown

GitHub Flavored Markdown doesn't support footnotes, but it could be faked with superscript tags. It could be even made clickable here as well.

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Sakuragawa Asaba

14 Mar 2019 · 1 min read

Container

Bare Metal OpenShift (OKD) 3.11 with GlusterFS Persistent Storage

Setting up a OpenShift Origin (OKD) cluster with containerized GlusterFS, customized self-signed CA certificates and trouble shooting.

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Sakuragawa Asaba

6 Dec 2018 · 5 min read

Open Source

Bare Metal Installation of GlusterFS and Heketi

GlusterFS is a popular solution for distributed storage. To provide persistent storage for Kubenetes cluster from GlusterFS cluster, Heketi is spreadly used as an API.

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Sakuragawa Asaba

15 Nov 2018 · 2 min read

Cloud

Hands-on Rancher Container Cloud

Days before, I migrated docker-compose services to Rancher container cloud. I will demostrate how I deploy Gitea, a popular self-hosted coding hosting software, with full Web UI and native-like SSH functionality.

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Sakuragawa Asaba

5 Sep 2018 · 3 min read

Cloud

From OpenShift 3.7 to OKD 3.10: A Painful Upgrade

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?

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Sakuragawa Asaba

28 Aug 2018 · 5 min read

Cloud

Deploy Granafa with Prometheus and OAuth2 on OpenShift

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.

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Sakuragawa Asaba

13 Aug 2018 · 4 min read

Container

Gitea in Docker Container and Sharing SSH with Host

Gitea is an open-source GitHub clone. Gitea is developed with Golang and is much lighter than GitLab while providing most useful functions. It also has a similary user experience as GitHub does. Since Microsoft is acquiring GitHub, Gitea is a good choice for self-hosting lightweight solution.

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Sakuragawa Asaba

12 Jun 2018 · 2 min read

Server

Setting Up Nextcloud 13 and Collabora Online for Private Online Office Platform with Docker

Nextcloud is a popular open-source online file storage solution, and Collabora Online, a LibreOffice-based online office suite, adds more along with NextCloud. The combination of the two is a powerful

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Sakuragawa Asaba

16 Mar 2018 · 3 min read

Linux

Hands on OpenShift Origin

OpenShift is an even-more-popular container cloud. It could be hosted by redhat.com via openshift.com or it can be self-hosted. I'm playing with OpenShift under Fedora 27 Cloud, on

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Sakuragawa Asaba

30 Nov 2017 · 2 min read

Linux

Some Thoughts on Linux/Unix Distributions

One of my classmates are busy implementing a DHCP server and a client for Linux/Unix as his coursework. He is absolutely total green to GNU/Linux while I have

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Sakuragawa Asaba

16 Jun 2017 · 6 min read