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    How to kubernetes on xcp-ng (csi?)

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    • M Offline
      mohammadm @olivierlambert
      last edited by

      @olivierlambert said in How to kubernetes on xcp-ng (csi?):

      You have a network issue (well, a DNS one) inside your VM, are you using the right network?

      Feel so dumb. When creating a VM, usually the top Network is the correct one. For Kubernetes, I had to scroll all the way down and select the correct network.

      K8s1.PNG K8s2.PNG

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      • olivierlambertO Online
        olivierlambert Vates 🪐 Co-Founder CEO
        last edited by

        Is it working correctly now?

        M 1 Reply Last reply Reply Quote 0
        • M Offline
          mohammadm @olivierlambert
          last edited by mohammadm

          @olivierlambert said in How to kubernetes on xcp-ng (csi?):

          Is it working correctly now?

          K8s.PNG

          Currently it is stuck on this.

          [FAILED] Failed to start Execute cloud user/final scripts.

          cp-1 login:

          I did not specify login credentials.

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          • olivierlambertO Online
            olivierlambert Vates 🪐 Co-Founder CEO
            last edited by

            Still a network problem (Cloud init can't reach something, no route to host)

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            • M Offline
              mohammadm @olivierlambert
              last edited by

              @olivierlambert said in How to kubernetes on xcp-ng (csi?):

              Still a network problem (Cloud init can't reach something, no route to host)

              This is the same error I used to get on my homelab when manually installing Ubuntu and trying to deploy k3s with rancheros and longhorn.

              This try is on our datacenter and not my homelab. I'll do another setup with DHCP.

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              • M Offline
                mohammadm @olivierlambert
                last edited by

                @olivierlambert Nope, still the same error.
                I don't think our Sonicwall (in the datacenter) is blocking anything. Since at home, I am using Unifi.

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                • xyhhxX Offline
                  xyhhx
                  last edited by

                  fwiw, i'm about to set up a kubernetes cluster on xcp-ng. i'm still in the process, but i'm planning on just passing disks as hba storage to worker/storage nodes, then using openebs jiva (or maybe rook/ceph)

                  if anybody is interested in how that goes, i can post about it later on

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                  • olivierlambertO Online
                    olivierlambert Vates 🪐 Co-Founder CEO
                    last edited by

                    Adding @shinuza also in the convo

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                    • S Offline
                      shinuza @mohammadm
                      last edited by

                      @mohammadm said in How to kubernetes on xcp-ng (csi?):

                      @olivierlambert said in How to kubernetes on xcp-ng (csi?):

                      Is it working correctly now?

                      K8s.PNG

                      Currently it is stuck on this.

                      [FAILED] Failed to start Execute cloud user/final scripts.

                      cp-1 login:

                      I did not specify login credentials.

                      The error is probably earlier than that. You can see the full output of the cloudinit script in /var/log/cloud-init-output.log
                      The error you are seeing is most likely due to the fact the kubernetes cluster could not be initialized. (kubeadm init failed)

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                      • S Offline
                        shinuza @xyhhx
                        last edited by

                        @xyhhx said in How to kubernetes on xcp-ng (csi?):

                        fwiw, i'm about to set up a kubernetes cluster on xcp-ng. i'm still in the process, but i'm planning on just passing disks as hba storage to worker/storage nodes, then using openebs jiva (or maybe rook/ceph)

                        if anybody is interested in how that goes, i can post about it later on

                        Jiva is probably not the way to go, I believe the supported way is to use Mayastor (via nvme-tcp)

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                        • xyhhxX Offline
                          xyhhx @shinuza
                          last edited by

                          @shinuza oh, yeah. they've deprecated it in the last couple of months. thanks for the heads up

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                          • Theoi-MeteoroiT Offline
                            Theoi-Meteoroi
                            last edited by

                            I should mention I use static IP for my VMs and I don't deploy using the hub recipes because my home setup is all Community bits and 8.3 XCP, updated regularly.
                            I use kubespray. I'm at kubernetes 1.27.7

                            So I can't provide any help with cloud init or hub/recipes.

                            The working setup I have is built on CentOS7 ( need to replace ) VMs. I tried deploying on RockyOS 9.3 and spun my wheels for too long on issues there so I'm going to try 8.9.

                            I just updated my XO-CE bits and see some nice new features in the UI that will be helpful with all the PCI passthru I want to do. I was putting add/remove instructions in the VM notes and tags on the VMs just to remind me of what they show below. Its like they read my mind.

                            I need to learn KubeVirt.

                            Screenshot 2024-05-03 at 11.34.42 PM.png

                            Its christmas in may.

                            xyhhxX 1 Reply Last reply Reply Quote 0
                            • xyhhxX Offline
                              xyhhx @Theoi-Meteoroi
                              last edited by

                              @Theoi-Meteoroi check out https://talos.dev 😎

                              Theoi-MeteoroiT 1 Reply Last reply Reply Quote 0
                              • Theoi-MeteoroiT Offline
                                Theoi-Meteoroi @xyhhx
                                last edited by

                                @xyhhx Why thanks! I'll take a look at it. I've done coreos and flatcar for work but find immutable OS no fun at home. I'm used to doing all the admin already and most of my VMs live long enough to be classed as "pets".

                                xyhhxX 1 Reply Last reply Reply Quote 0
                                • xyhhxX Offline
                                  xyhhx @Theoi-Meteoroi
                                  last edited by

                                  @Theoi-Meteoroi lol i've been seeing that analogy more and more lately. to each their own!

                                  i think that's worth doing when the vms aren't being used as kubernetes nodes, but for kubernetes i'd prefer the vms be strictly for kubernetes

                                  talos is purpose-built for this, too, so you get lots of great features, and you can be confident they're secure, and minimal. their support chat is very responsive too, if you're on matrix

                                  ok i'm done shilling talos now 😅

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                                  • Theoi-MeteoroiT Offline
                                    Theoi-Meteoroi @xyhhx
                                    last edited by

                                    @xyhhx As I look further, it does seem to check a lot of boxes if I was building out a prod instance. I have enough exposure to dev-sec that I see the value. I feel like I sound like Linus and his comments about Debian but learning new ecosystems takes time and energy and sometimes is just distraction from building something. I kinda wore myself out learning all the details and quirks of DRBD and Linstor recently so I'll read some of the docs and hope the toolchain doesn't chase me away. Any product or project that genuinely and openly has a community like we have here would usually have my attention, just on those terms.

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                                    • xyhhxX Offline
                                      xyhhx @Theoi-Meteoroi
                                      last edited by

                                      @Theoi-Meteoroi if you do check it out don't be shy to ping me either here or on matrix (@xyhhx:matrix.org) and i'll be happy to try to help

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                                      • M Offline
                                        mohammadm
                                        last edited by

                                        So all of you have connected the storage directly to the vms?
                                        I'm trying to do it on iscsi and nfs storage.

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                                        • xyhhxX Offline
                                          xyhhx @mohammadm
                                          last edited by

                                          @mohammadm i think for nfs you should handle that from the kubernetes side. i.e. use an nfs-provisioner or the built-in nfs storageclass

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