Container Setting up Containerized FreeIPA & KeyCloak Single Sign-On Explore the Red Hat solution on LDAP + OIDC / SAML. Sakuragawa Asaba 9 Dec 2021 · 6 min read
Cloud Etcd does not Start after Disk is Full Restoring etcd is not an easy task - even today. Sakuragawa Asaba 22 Nov 2021 · 5 min read
Cloud Better Home Storage: MergerFS + SnapRAID on OpenMediaVault For home data storage, I'd prefer scheduled cold backup. But is there any way to enjoy some benefits from RAID without "real RAID"? Yes, there is! Sakuragawa Asaba 31 Oct 2021 · 3 min read
BSD Migrate ZFS Pool with Sparse File I have a ZFS pool containing 8 disks (4×2TiB + 2×4TiB + 2×4TiB) on an 8 bay server: state: DEGRADED status: .... config: NAME STATE READ WRITE CKSUM ${SRC_POOL} Sakuragawa Asaba 26 Oct 2021 · 2 min read
Cloud On CloudFlare CDN Common Errors CloudFlare provides free CDN with full SSL support. It is powerful and userful. But sometimes one can run into problems with it. Sakuragawa Asaba 2 Oct 2021 · 1 min read
Linux Containerized WordPress from Sub-directory with Traefik It becomes so easy to host a WordPress CMS using its official Docker container image. If only 1 domain is available, it might be useful to serve WordPress from subdirectory, i.e https://$SITE_URL/blog/. Sakuragawa Asaba 19 Sep 2021 · 2 min read
Tooling Elastic + Grafana Data Visualization: Elastic Data Source Notes Some errors during Elastic data source adapting attempt. Sakuragawa Asaba 21 Jun 2021 · 1 min read
Getting Started Change Elastic Index Mappings Converting and changing the type of a column in database is easy. Unfortunately, the type of a field in a mapping could not be changed in Elastic. If the docs is already indexed, the mapping could not be changed and an reindex-ing would be needed. Sakuragawa Asaba 18 Jun 2021 · 3 min read
Linux MultiGarment-Network under Conda Environment How to configure Conda environments for MultiGarment-Network (both Python 2 & 3). Sakuragawa Asaba 2 Jun 2021 · 6 min read
Android Flash Android 10 GSI on an Original Google Pixel A generic system image (GSI) is a system image with adjusted configurations for Android devices. One Single GSI could run on devices with different configuration without modification or re-compling theoretically. Sakuragawa Asaba 21 Apr 2021 · 3 min read
Container Rancher Server on RKE Deployment RKE is a CNCF-certified Kubernetes distribution that runs entirely within Docker containers. It could be configured and provisioned from simple configuration. Plus the easy-to-use Rancher Server as a Web UI running on the cluster, we can have a truly self-hosted Kubernetes cluster. Sakuragawa Asaba 18 Apr 2021 · 5 min read
Migrating ESXi to Proxmox VE with PCI Passthrough I recently migrate one of the old servers running VMware Hypervisor to KVM-based solution. Installing Proxmox Virtual EnvironmentInstalling Proxmox Virtual Environment (Proxmox VE) is as easy as installing Debian. Just Sakuragawa Asaba 28 Mar 2021 · 3 min read
Container Using Linux Containers (LXC) on Fedora Linux containers, or LXC, is a lightweigt yet powerful container solution. It can run applications or distros but share the same kernel and hardware resources and persistently. This is not a cutting-edge technology and is fully supported in Fedora. Sakuragawa Asaba 10 Mar 2021 · 3 min read
Linux Notes on Redis Operation Some common problems and solution to containerized Redis deployment. Sakuragawa Asaba 12 Dec 2020 · 1 min read
Container Update (Renew) Certificates in OpenShift (OKD) 3 Server certificates are used to provide encrypted traffic (HTTPS) in OpenShift. When a certificate is near expiration, renewal and replacement is needed. Prepare the EnvironmentTo replace certificates automatically, Ansible is Sakuragawa Asaba 10 Nov 2020 · 1 min read
Container Helm 2 on OpenShift (OKD) 3 Install the popular Kubernetes package manager and enable cluster-wide install ability. Helm 3? No Way!OpenShift 4 has built-in integration with Helm 3. Yet OpenShift 3 does not feature any Sakuragawa Asaba 4 Nov 2020 · 1 min read
Network Connect Wi-Fi in a WPS (Push Button) Way with OpenWRT I thought it was hard to pair device by WPS with OpenWRT, but I was wrong. According to the official wiki, it could be simply configured by adding some lines Sakuragawa Asaba 18 Sep 2020 · 1 min read
Getting Started Some Tips on Telegraph (2020) What and Why Telegraph?Telegra.ph, or Telegraph is a publishing platform hosted by Telegram. It could be used to publish blog or any other articles, either signed or anonymously. Sakuragawa Asaba 14 Aug 2020 · 2 min read
