sempr

// ==UserScript==
// @name         Codeforces Data Donwloader
// @namespace    http://tampermonkey.net/
// @version      2024-05-14
// @description  Download Script For Codeforces
// @author       Sempr
// @match        https://codeforces.com/contest/*/problems
// @icon         https://aowuucdn.oss-accelerate.aliyuncs.com/codeforces.png
// @grant        GM_addStyle
// @require      https://cdnjs.cloudflare.com/ajax/libs/jszip/3.7.1/jszip.min.js

sempr

# https://zhaox.github.io/nginx/2019/09/05/explain-nginx-rate-limit

# 20 per second, 50ms each
limit_req_zone $remote_user zone=user_limit:10m rate=10r/s;
limit_req_zone $my_id zone=one:10m rate=20r/m;

server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;

sempr

module github.com/sempr/gin-reverse-proxy

go 1.18

require github.com/gin-gonic/gin v1.8.1

require (
	github.com/gin-contrib/sse v0.1.0 // indirect
	github.com/go-playground/locales v0.14.0 // indirect
	github.com/go-playground/universal-translator v0.18.0 // indirect

sempr

#!/bin/bash

DING_SEC="<Your SEC Here>"
DING_URL="<Your Webhook Here>"

function hash_hmac {
    # hash_hmac sha256 data sec -binary
    old_lc_collate=$LC_COLLATE
    LC_COLLATE=C
    digest="$1"

sempr

package main

import (
	"fmt"

	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
)

sempr

version: "3.8"

x-superenv:
  &default-superenv
  environment: 
    XX: 135
    FOO: superenv-foo
  command: echo $${XX} $${FOO}

services: 

sempr

dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
dnf install -y https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.13-3.2.el7.x86_64.rpm
dnf install -y docker-ce
curl -o /usr/local/bin/docker-compose -L https://github.com/docker/compose/releases/download/1.26.2/docker-compose-Linux-x86_64
chmod +x /usr/local/bin/docker-compose
systemctl enable --now docker

#dnf install -y git

sempr

FROM python:3.8.1-slim

ADD ./requirements.txt /tmp/requirements.txt
RUN set -xe \
    && pip install -i https://mirrors.aliyun.com/pypi/simple --no-cache -r /tmp/requirements.txt

ADD app.py /code/app.py
WORKDIR /code
CMD ["gunicorn", "-w4", "-b0.0.0.0:8000", "app:app"]

sempr

package main

import (
	"path"

	"github.com/gin-gonic/gin"
)

type oauthApp struct {
	Prefix string

sempr

latestkernel=`ls -t /boot/vmlinuz-* | sed "s/\/boot\/vmlinuz-//g" | head -n1`
echo $latestkernel
kexec -l /boot/vmlinuz-${latestkernel} --initrd=/boot/initramfs-${latestkernel}.img --append="`cat /proc/cmdline`"
kexec -e

# 备注，其实和重启没啥两样, uptime也会清零重算，唯一的好处就是比重启要快一点点

# remove old kernels on centos 8
dnf remove --oldinstallonly --setopt installonly_limit=1 kernel