Open Source

Home Posts Tagged "Open Source"
    Cloud
Labels in OpenShift 3 Web Console
            Labels are used to match application names and resources in OpenShift 3 Web Console.
        
        Sakuragawa Asaba
        
    19 Apr 2022
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    1 min read
    
    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
            There is a way to enjoy some benefits from RAID without "real RAID" - and a supplement to scheduled cold backup for home data storage.
        
        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