Open Source

Home Posts Tagged "Open Source"
                
    Container
Setting up Containerized FreeIPA & KeyCloak Single Sign-On
            Explore the Red Hat solution on LDAP + OIDC / SAML.
        
        Sakuragawa Asaba
        
    9 Dec 2021
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    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
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    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
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    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
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    5 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
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    3 min read
    
    Linux
Notes on Redis Operation
            Some common problems and solution to containerized Redis deployment.
        
        Sakuragawa Asaba
        
    12 Dec 2020
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    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
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    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
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    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
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    1 min read
    
    Open Source
VT-d, vfio and GPU passthrough, Virtualization in a nutshell (RHEL8)
            It's really an bad idea to build a machine just for gaming  so when an unexpected hardware arrives to my hand: A free RTX-2060 super but without a machine to
        
        Sakuragawa Yuugiri
        
    7 Jun 2020
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    4 min read
    
    Open Source
Switching from Atom to VSCodium
            Atom is a flexible and powerful editor made by GitHub. I have been coding with it for years and I loved it. But it takes up many resources including CPU
        
        Sakuragawa Asaba
        
    9 May 2020
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    2 min read
    
    Cloud
Kubernetes external LoadBalancer and Nextcloud deployment
            Previous StatusContinue on previous post https://blog.sakuragawa.moe/simple-homebrew-kubernetes-deployment/  And post https://blog.sakuragawa.moe/deploy-ceph-storage-and-csi-for-pods-consume-in-kubernetes-home-lab/ The Kubernetes cluster bootstrapping is complete and the Flannel network takes the charge
        
        Sakuragawa Yuugiri
        
    29 Apr 2020
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    7 min read
    
    Server
Upgrade OMV 4 to 5: A Painful Path
            OpenMediaVault, as a popular NAS solution, has released "Usul" for months. Somehow there is no built-in ways to upgrade between major releases. The actual best upgrade solution is a clean installation.
        
        Sakuragawa Asaba
        
    17 Apr 2020
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    5 min read
    
    Linux
Debugging: MISCONF Redis is configured to save RDB snapshots
            This error occurs because of BGSAVE being failed. A lot of the times BGSAVE fails because the fork can't allocate memory. Many times the fork fails to allocate memory  (although the machine has enough RAM available) because of a conflicting optimization by the OS.
        
        Sakuragawa Asaba
        
    26 Nov 2019
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    2 min read
    
    Cloud
Deploy Ceph storage and CSI for pods consume in Kubernetes Home Lab
            Previous StatusContinue on previous post https://blog.sakuragawa.moe/simple-homebrew-kubernetes-deployment/ And this should be suitable for any working Kubernetes cluster with some storage node. The Kubernetes cluster bootstrapping is complete
        
        Sakuragawa Yuugiri
        
    19 Nov 2019
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    6 min read
    
    Linux
Simple home lab Kubernetes cluster deployment
            Before this noteRecently 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 cost
        
        Sakuragawa Yuugiri
        
    15 Oct 2019
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    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.
        
        Sakuragawa Asaba
        
    14 Mar 2019
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    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.
        
        Sakuragawa Asaba
        
    6 Dec 2018
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    5 min read