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@epcim
epcim / ipxe_with_dhcp.txt
Created April 13, 2023 08:33 — forked from tuxfight3r/ipxe_with_dhcp.txt
ipxe kickstart over http - dhcp and static configuration
#clone the repo
git clone http://git.ipxe.org/ipxe.git
cd ipxe/src
cat >ubuntu-amd64-installer.ipxe <<EOF
#!ipxe
dhcp
echo Starting Ubuntu x64 installer for ${hostname}
set base-url http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64
kernel ${base-url}/linux
@ross-spencer
ross-spencer / latency.txt
Created February 23, 2021 13:06 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@prologic
prologic / LearnGoIn5mins.md
Last active August 12, 2025 02:24
Learn Go in ~5mins
@fincd-aws
fincd-aws / eksctl-config-us-west-2-managed.yaml
Created February 27, 2020 22:39
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig
metadata:
name: eksctl-us-west-2-managed
region: us-west-2
vpc:
id: vpc-0b953326cd7a2f917
subnets:
@bakman2
bakman2 / octoprint.md
Last active September 19, 2024 21:01
Octoprint IP Camera

How to use Octoprint with an IP camera that has an RTSP stream available

Optional: For Wyze cam only

Install Dafang Hacks on the Wyze Cam.

Once running and all is functional, continue. Set video bitrate to 1500, VBR, 30fps.

Installation

@jerblack
jerblack / tee.go
Last active May 7, 2025 20:18
Golang: Mirror all writes to stdout and stderr in program to log file
package main
import (
"fmt"
"io"
"log"
"os"
)
func main() {
@tennix
tennix / dashbord-to-jsonnet.py
Last active June 25, 2025 12:55
Convert Grafana dashboard json to jsonnet
#!/usr/bin/env python
import json
from jinja2 import Template
# git clone https://github.com/pingcap/tidb-docker-compose
# cd tidb-docker-compose
# git clone https://github.com/tennix/grafonnet-lib -b table
# python dashboard-to-jsonnet.py > pd.jsonnet
# jsonnet -J grafonnet-lib pd.jsonnet > config/dashboards/generated-pd.json
with open('config/dashboards/pd.json', 'r') as f:
data = json.load(f)
@ams0
ams0 / docker-root-ds.yaml
Created February 4, 2019 08:27
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: docker-root
spec:
selector:
matchLabels:
name: docker-root
template:
metadata:
@enyachoke
enyachoke / aes.go
Created January 15, 2019 06:51 — forked from tscholl2/aes.go
simple AES encryption/decryption example with PBKDF2 key derivation in Go, Javascript, and Python
package main
import (
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"crypto/sha256"
"encoding/hex"
"fmt"
"strings"
@pbasov
pbasov / k8s-cluster.yml
Last active October 15, 2018 13:56
# Kubernetes configuration dirs and system namespace.
# Those are where all the additional config stuff goes
# the kubernetes normally puts in /srv/kubernetes.
# This puts them in a sane location and namespace.
# Editing those values will almost surely break something.
kube_config_dir: /etc/kubernetes
kube_script_dir: "{{ bin_dir }}/kubernetes-scripts"
kube_manifest_dir: "{{ kube_config_dir }}/manifests"
# This is where all the cert scripts and certs will be located