Some more articles reformatting
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content/blog/kubernetes/single-node-cluster-taint.md
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content/blog/kubernetes/single-node-cluster-taint.md
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---
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title: kubernetes single node cluster taint
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date: 2021-01-06
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description: How to schedule worker pods on your control plane node
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tags:
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- kubernetes
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---
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## The solution
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On a single node cluster, control plane nodes are tainted so that the cluster never schedules pods on them. To change that run :
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{{< highlight sh >}}
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kubectl taint nodes --all node-role.kubernetes.io/master-
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{{< /highlight >}}
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Getting dns in your pods :
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{{< highlight sh >}}
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add --cluster-dns=10.96.0.10 to /etc/conf.d/kubelet
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{{< /highlight >}}
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@ -15,7 +15,7 @@ stories while having a drink... and that's it!
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## Professional Career
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I'm currently employed as a System and Network Architect at an awesome company named AlterWay, 3 years and counting. Before that I worked for 7 years at another awesome company named Intersec where I lead the IT team.
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I'm currently employed as a System and Network Architect at an awesome company named AlterWay, 4 years and counting. Before that I worked for 7 years at another awesome company named Intersec where I lead the IT team.
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### Intersec
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@ -1,8 +1,6 @@
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---
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title: "Gentoo"
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linkTitle: "Gentoo"
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weight: 1
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description: >
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Gentoo related articles
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description: Gentoo related articles
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---
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I am a long time gentoo user, my first installation dating back to something like 2004.
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@ -1,11 +1,12 @@
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---
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title: "Installation"
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linkTitle: "installation"
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weight: 1
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description: >
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Installation of a gentoo system
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description: Installation of a gentoo system
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---
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## Introduction
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When installing a gentoo system for the first time, please refer to the wonderfull [gentoo handbook](https://wiki.gentoo.org/wiki/Handbook:AMD64). This page is just installation notes shorthand when you know exactly what you are doing.
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## Installation media
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You can get a bootable iso or liveusb from https://www.gentoo.org/downloads/. I recommend the minimal one. To create a bootable usb drive juste use `dd` to copy the image on it. Then boot on this brand new installation media.
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@ -17,6 +18,8 @@ Once you boot on the installation media, you can start sshd and set a temporary
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passwd
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{{< /highlight >}}
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Don't forget to either run `dhcpcd` or manually set an ip and gateway to the machine.
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## Partitionning
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There are several options depending on wether you need soft raid, full disk encryption or a simple root device with no additional complications. It will also differ if you are using a virtual machine or a physical one.
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@ -50,6 +53,8 @@ mkfs.fat -F 32 -n efi-boot /dev/sda2
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mount /dev/sda3 /mnt/gentoo
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{{< /highlight >}}
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Make sure you do not repeat the mistake I too often make by mounting something to /mnt while using the liveusb/livecd. You will lose your shell if you do this and will need to reboot!
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## Get the stage3 and chroot into it
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Get the stage 3 installation file from https://www.gentoo.org/downloads/. I personnaly use the non-multilib one from the advanced choices, since I am no longer using and 32bits software except steam, and I use steam from a multilib chroot.
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@ -178,6 +183,7 @@ scp root@collab-jde.nexen.net:/etc/hosts /etc/
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### root account access
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I switched to an ed25512 ssh key some time ago but left this here for posterity :
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{{< highlight sh >}}
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mkdir -p /root/.ssh
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echo 'ssh-rsa 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 adyxax
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---
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title: "Gentoo Kernel Upgrades"
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linkTitle: "Kernel Upgrades"
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weight: 1
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description: >
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Gentoo kernel upgrades on adyxax.org
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description: Gentoo kernel upgrades on adyxax.org
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---
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# Gentoo kernel upgrades
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## Introduction
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Now that I am mostly running OpenBSD servers I just use genkernel to build my custom configuration on each node with :
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{{< highlight sh >}}
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eselect kernel list
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eselect kernel set 1
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genkernel all --kernel-config=/proc/config.gz --menuconfig
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nvim --diff /proc/config.gz /usr/src/linux/.config
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{{< / highlight >}}
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Bellow you will find how I did things previously when centralising the build of all kernels on a collab-jde machine, and distributing them all afterwards. Local nodes would only rebuild local modules and get on with their life.
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## Building on collab-jde
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---
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title: "LXD"
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linkTitle: "LXD"
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weight: 1
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description: >
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How to setup a LXD server
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description: How to setup a LXD server on gentoo
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---
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## Introduction
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I have used LXD for many years successfully, I was never satisfied with the docker way of doing container images pulling who knows what from who knows where. Until recently I managed full machine containers running Alpine Linux and was very happy with the simplicity of it.
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## Installation
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{{< highlight sh >}}
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touch /etc{/subuid,/subgid}
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usermod --add-subuids 1000000-1065535 root
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rc-update add lxd default
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{{< /highlight >}}
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## Initial configuration
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{{< highlight sh >}}
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myth /etc/init.d # lxd init
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Would you like to use LXD clustering? (yes/no) [default=no]:
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---
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title: "Steam"
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linkTitle: "Steam"
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weight: 1
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description: >
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How to make steam work seamlessly on gentoo with a chroot
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description: How to make steam work seamlessly on gentoo with a chroot
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---
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## Introduction
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I am not using a multilib profile on gentoo (I use amd64 only everywhere), so when the time came to install steam I had to get a little creative. Overall I believe this is the perfect
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way to install and use steam as it self contains it cleanly while not limiting the functionalities. In particular sound works, as does the hardware acceleration in games. I tried to
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achieve that with containers but didn't quite made it work as well as this chroot setup.
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<h1>{{ .Title }}</h1>
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{{ .PublishDate.Format "2006-01-02" }} - {{ .Description }}
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{{ if ne .PublishDate.Year 1 }}{{ .PublishDate.Format "2006-01-02" }} - {{ end }}{{ .Description }}
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{{ partial "toc.html" . }}
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