Running OpenStack DevStack in a Container

Introduction to https://github.com/bobuhiro11/containerized-devstack. OpenStack has a convenient tool 1 for creating an all-in-one development environment with a single command, but it assumes VMs or physical machines as the target environment. If we could create that environment inside a container, it would make re-setup easier, which would be great. Of course, similar attempts 2 3 4 have been made several times in the past, but they are no longer maintained at this point, so I decided to create my own....

March 31, 2021

VMware Complete Introduction - Reading Notes

Miscellaneous Notes vSphere environment interfaces GUI: vSphere Client, vSphere Web Client CLI: vSphere CLI, VMware vSphere Power CLI DCUI (Direct Console User Interface): ESXi console Virtual disks are created as a single file called .vmdk and stored in the datastore. For VLAN VST configuration, Port Group = VLAN configuration is common and recommended. vSphere DRS automatically performs vMotion for the purpose of load balancing between ESXi hosts. vMotion is so-called live migration....

October 15, 2020

Installing debian 8.0 jessie on Macbook Air (13-inch, Mid2012)

Notes on installing debian 8.0 jessie on Macbook Air (13-inch, Mid2012). Installing on SD Card First, prepare an appropriate media (/dev/diskX) other than the target SD card, and burn the debian 8.0 jessie Live install image to /dev/diskX. Once burned, restart while holding the command key and boot debian from /dev/diskX. $ diskutil unmount /dev/diskX $ dd if=debian-live-8.3.0-amd64-lxde-desktop.iso of=/dev/diskX Next, create two partitions on the SD card (/dev/diskY). Use GUID Partition Table (GPT) as the partitioning scheme....

March 15, 2016

Building an Energy-Efficient Server

I’m running a Sakura VPS 1G plan instance as a web server and storage, but there are some dissatisfactions. Storage is split between home and VPS PC is on at home anyway So I decided to place a server at home. The requirements are typical, but like this: Has PCI slot Don’t particularly use PCIe, but nice to have Quiet (fanless, spinless) Cheap (total budget up to 40,000 yen) Power efficient 2 or more SATA ports After some research, I thought I’d use a NUC (Next Unit of Computing) called DN2820FYKH (15,000 yen)....

July 20, 2015