Skip to content

Instantly share code, notes, and snippets.

@i3v
i3v / cdm_fio.sh
Last active May 15, 2024 13:10
Reproducing CrystalDiskMark tests with fio - fixes for https://unix.stackexchange.com/revisions/480191/9
#!/bin/bash
# This script is based on https://unix.stackexchange.com/revisions/480191/9 .
# The following changes proved to be necessary to make it work on CentOS 7:
# * removed disk info (model, size) - not very useful, might not work in many cases.
# * using "bw" instead of "bw_bytes" to support fio version 3.1 (those availible through yum @base)
# * escaping exclamation mark in sed command
# * the ".fiomark.txt" is not auto-removed
LOOPS=5 #How many times to run each test
@virus-warnning
virus-warnning / async_pdca.py
Last active December 21, 2018 17:05
用管理學的 PDCA 循環理解 Python 3.7 的非同步處理
import random
import asyncio
class PDCACycle:
def __init__(self):
self.bad_mood = 0
self.interval = 1
async def plan(self, name):
@nasrulhazim
nasrulhazim / haproxy-cors.md
Last active January 22, 2024 06:12
Setting Up CORS in HAProxy
frontend localnodes
    bind *:80
    reqadd X-Forwarded-Proto:\ http

    # Add CORS headers when Origin header is present
    capture request header origin len 128
    http-response add-header Access-Control-Allow-Origin %[capture.req.hdr(0)] if { capture.req.hdr(0) -m found }
    rspadd Access-Control-Allow-Methods:\ GET,\ HEAD,\ OPTIONS,\ POST,\ PUT  if { capture.req.hdr(0) -m found }
    rspadd Access-Control-Allow-Credentials:\ true  if { capture.req.hdr(0) -m found }
@dm0-
dm0- / auto-update-kmods.ignition
Last active September 28, 2023 10:03
Automatically update custom kernel modules on CoreOS
{
"ignition": { "version": "2.0.0" },
"systemd": {
"units": [
{
"name": "auto-update-kmods.service",
"enable": true,
"contents": "[Unit]\nDescription=Install custom kernel modules\nAfter=lib-modules.mount network-online.target\nRequires=lib-modules.mount network-online.target\nConditionPathExists=!/opt/modules/%v\nConditionPathExistsGlob=/lib/modules/auto-update-kmods.d/*.sh\n\n[Service]\nType=oneshot\nExecStart=/bin/bash -ex /lib/modules/auto-update-kmods.sh\n\n[Install]\nWantedBy=multi-user.target\n"
},
{
@takeshixx
takeshixx / ubuntu-xenial-armfh-qemu.md
Last active October 22, 2023 12:14
Running Ubuntu 16.04.1 armhf on Qemu

Running Ubuntu 16.04.1 armhf on Qemu

This is a writeup about how to install Ubuntu 16.04.1 Xenial Xerus for the 32-bit hard-float ARMv7 (armhf) architecture on a Qemu VM via Ubuntu netboot.

The setup will create a Ubuntu VM with LPAE extensions (generic-lpae) enabled. However, this writeup should also work for non-LPAE (generic) kernels.

The performance of the resulting VM is quite good, and it allows VMs with >1G ram (compared to 256M on versatilepb and 1G on versatile-a9/versatile-a15). It also supports virtio disks whereas versatile-a9/versatile-a15 only support SD cards via the -sd argument.

Get netboot files

@rifki192
rifki192 / sqsMover.py
Created May 26, 2016 03:39
simple python script for move queue between AWS SQS
conf = {
"sqs-access-key": "",
"sqs-secret-key": "",
"sqs-queue-src": "",
"sqs-queue-dest": "",
"sqs-region": "ap-southeast-1",
}
import boto.sqs
conn = boto.sqs.connect_to_region(
@Belgabor
Belgabor / Django_ReactJS_Webpack_project_setup.md
Created April 20, 2016 18:54
Set up a Django + ReactJS project with Webpack manager

Guide on how to create and set up your Django project with webpack, npm and ReactJS :)

Hopefully this will answer "How do I setup or start a Django project?" I was trying to set up my own website, and there was a lot to read, learn and digest! Therefore, I put this together which is a collection of all the guides/blog posts/articles that I found the most useful. At the end of this, you will have your barebones Django app configured and ready to start building :)

NOTE: This guide was built using Django 1.9.5, NodeJS 4+ with NPM 3+

1. Setting up your dev environment

@bastman
bastman / docker-cleanup-resources.md
Created March 31, 2016 05:55
docker cleanup guide: containers, images, volumes, networks

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

@hqingyi
hqingyi / fluentd_forwarder.conf
Created March 24, 2016 03:05
haproxy -> fluentd forwarder -> fluentd server -> elasticsearch -> kibana
<source>
type tail
path /var/log/haproxy.log
pos_file /var/log/td-agent/haproxy.log.pos
tag haproxy.http
format /^(?<syslog_time>.+) (?<source_ip>.+) (?<ps>\w+)\[(?<pid>\d+)\]: (?<c_ip>[\w\.]+):(?<c_port>\d+) \[(?<time>.+)\] (?<f_end>[\w\.-]+) (?<b_end>[\w\.-]+)\/(?<b_server>[^ ]+) (?<tq>[-]?\d+)\/(?<tw>[-]?\d+)\/(?<tc>[-]?\d+)\/(?<tr>[-]?\d+)\/(?<tt>\d+) (?<status_code>\d+) (?<bytes_read>\d+) (?<captured_request_cookie>.+) (?<captured_response_cookie>.+) (?<termination_state>.+) (?<actconn>\d+)\/(?<feconn>\d+)\/(?<beconn>\d+)\/(?<srv_conn>\d+)\/(?<retries>\d+) (?<srv_queue>\d+)\/(?<backend_queue>\d+) \"(?<http_request>.+)\"$/
time_format %d/%b/%Y:%H:%M:%S.%L
</source>
<match *.**>
@marians
marians / CouchDB_Python.md
Last active May 21, 2024 20:53
The missing Python couchdb tutorial

This is an unofficial manual for the couchdb Python module I wish I had had.

Installation

pip install couchdb

Importing the module