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fast and loose is still fast.

Brandon bgulla

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fast and loose is still fast.
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bgulla / gist:550b4b580b0792668b1c898b595aa747
Last active May 15, 2024 22:23
Flashing Dell XR4000 Witness Node (with something other than ESXI)

Flashing the Dell XR4000 Witness Node (Nano Processing Unit) with Harvester

Screenshot 2024-05-15 at 5 01 41 PM

Once you have serial access to the device, reboot the host and boot to either USB or PXE and install Harvester per usual.

What is the Nano Processing Unit

image

Because the small Atom-based witness node operates in a headless capacity, we need to serial into the node. Here's how you do it.

@bgulla
bgulla / proxmox_webvnc_fix.sh
Last active July 7, 2023 12:32
Proxmox script to fix WebVNC after an IP change
#!/bin/bash
## https://forum.proxmox.com/threads/console-failed-to-connect-to-server-host-key-verification-failed.78957/
# Usage: ./proxmox_webvnc_fix.sh <shorthostname>
# Notes: may need to run twice for the fix to take.
set -e
DOMAIN="lark.lol"
if [ $# -eq 0 ]; then
echo "No hostname provided. Exiting..."
@bgulla
bgulla / Makefile
Created April 17, 2023 20:31
RKE2/K3s Nvidia GPU-Operator installation
prep:
helm repo add nvidia https://helm.ngc.nvidia.com/nvidia \
&& helm repo update
install:
helm install --wait nvidiagpu \
-n gpu-operator --create-namespace \
--set toolkit.env[0].name=CONTAINERD_CONFIG \
--set toolkit.env[0].value=/var/lib/rancher/k3s/agent/etc/containerd/config.toml \
--set toolkit.env[1].name=CONTAINERD_SOCKET \
@bgulla
bgulla / webos_tv_root.txt
Last active December 28, 2022 14:29
LG WebOS Root Instructions from #OpenLGTV Discord
##
## shoutout to https://github.com/webosbrew
## I lifted these instructions from the #OpenLGTV discord (under pinned msgs). The instructions are for Windows but just replace Putty with a terminal and you're good to go.
1. Enable Developer Mode: https://webostv.developer.lge.com/develop/getting-started/developer-mode-app
2. Download Software:
a. WebOS-Dev-Manager - https://github.com/webosbrew/dev-manager-desktop/releases
b. PuTTY - https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html
c. Homebrew Channel 0.5.1 ipk - https://github.com/webosbrew/webos-homebrew-channel/releases
3. In WebOS-Dev-Manager perform these steps:
@bgulla
bgulla / coral-playbook.yml
Created November 24, 2022 02:50
Google Coral GPU Ubuntu playbook
---
- hosts: all
tasks:
# ansible all -i closet.lark.lol -u root coral-playbook.yaml
# deb https://packages.cloud.google.com/apt coral-edgetpu-stable main
# https://packages.cloud.google.com/apt/doc/apt-key.gpg
- name: Add an Apt signing key, uses whichever key is at the URL
ansible.builtin.apt_key:
url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
#!/bin/bash
mkdir -p /opt/docker/{data,config,dockerfiles}
CONTAINER_NAME="changedetectionio"
DATA_DIR=/opt/docker/data/${CONTAINER_NAME}
docker rm --force selenium changedetectionio playwright-chrome
docker run -d \
--name selenium \
--restart unless-stopped \
@bgulla
bgulla / rancher-airgap-examples.md
Last active September 23, 2022 14:15
Example scripts to get Rancher & Rancher Kubernetes Distributions in an air-gap environment

Rancher | Airgap all teh things.

k3s

k3s with private (authenticated) registry

### Assumptions:
# - Registry: You have a private registry (ex: harbor.air-gap.dev) pre-seeded with required images
# - File Dependencies:
#   - SELinuxRPM: k3s requires an selinux rpm. You can grab it ahead of time from here: https://github.com/k3s-io/k3s-selinux/releases
#   - k3s binary: (example) https://github.com/k3s-io/k3s/releases/download/v1.24.4%2Bk3s1/k3s
#!/bin/sh
echo "deb https://packages.cloud.google.com/apt coral-edgetpu-stable main" | sudo tee /etc/apt/sources.list.d/coral-edgetpu.list
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
sudo apt-get update -y
sudo apt-get install libedgetpu1-max python3-pycoral -y
@bgulla
bgulla / speed_results.md
Last active August 21, 2021 13:27
Tests related to storing proxmox vms on a synology NFS over 10G

Speed-testing proxmox vms hosted on a Synology DS1821+ NFS over 10G

fio

rm fio-tempfile.dat; fio --name TEST --eta-newline=5s --filename=fio-tempfile.dat --rw=write --size=500m --io_size=10g --blocksize=1024k --ioengine=libaio --fsync=10000 --iodepth=32 --direct=1 --numjobs=1 --runtime=60 --group_reporting
# Note: if you dont delete an existing fio-template.dat, it will reuse the file and report corrupted speed tests (1150 vs 635)

Results

#!/bin/bash
## helper script to more easily personalize cloned virtual-machines. add to your bashrc.
## on login, it will test the hostname and if localhost is determined to be a part of the hostname,
## this script will offer to fix that for you.
if [[ $(hostname -s) = localhost* ]]; then
read -p "[!!!] it seems you are still using localhost, would you like to set the hostname? (y/n) " choice
if [[ "${choice}" -eq "y" ]]; then
read -p " new hostname: " newhostname
# set new hostname