Redis on Ricky

Til

Fri, 11 Sep 2026 08:23:01 +0800

Checklist Design
Tuxedo No.2 - A Cocktail Companion
MangaMillion
debloat.dev — replace the junk
台灣罪犯圖鑑
直轄市及各縣市短期補習班資訊管理系統
各運動種類不適任教練名單 — 案源比對工作表
運動部 - 涉及違法事件不適任教練資訊專區
運動部 - 教練證照查詢系統
CRC 聯合國兒童權利公約資訊網 - 違反兒少法
衛生福利部 - 醫事人員性別事件資訊專區
全國教保資訊網 - 裁罰紀錄查詢
Article
- We replaced Redis with MySQL for inventory reservations—and it scaled
- How we tracked down a 16-year-old SQLite bug
Database
- cr-sqlite - Convergent, Replicated, SQLite
- Dbmate is a database migration tool that will keep your database schema in sync across multiple developers and your production servers.
Diagram
- Turn a codebase or system description into a polished, interactive system map — directly in chat.
- Editorial diagrams your designer won’t hate.
Github
- Gemma 4 26B-A4B inference in ~2 GB of RAM on any M-series MacBook
- claude-tap is a local proxy and trace viewer for AI coding agents.
- Bark is an iOS App which allows you to push custom notifications to your iPhone
- macOS menu bar app that tells you, in plain English, what each USB-C cable plugged into your Mac can actually do
- Rebuild the object in a reference image as a code-only, procedural Three.js model.
- MALWARE RESEARCH HUB
- Pumpkin is a Minecraft server built entirely in Rust, offering a fast, efficient, and customizable experience.
- Lody: A shared workspace for the coding agents your team already uses.
- Boot a virtual iPhone via Apple’s Virtualization.framework using PCC research VM infrastructure.
- The largest Open-Source UI Library! Community-made and free to use. Made with either CSS or Tailwind.
- Data intensive science for everyone.
MCP
- fff: A file search toolkit for humans and AI agents.
- Pre-indexed code knowledge graph, auto syncs on code changes.
Present
- PPT Master — AI generates native PowerPoint from any document
- Bento — the office suite that fits in a file
- The slide framework built for agents.
Self-Hosted
- CertMate - Certificate Lifecycle Management
Skill
- Skills for Designers and Engineers.
- Test Generator Agent
- Skills for Real Engineers. Straight from my .agents directory.
- Autonomous game development for Godot, Bevy, and Babylon.js with Claude Code and Codex
- Taste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop
- Comprehensive production pipeline for quad-modal AI filmmaking with Seedance 2.0
- skill to create best prompts for generating videos with seedance2.0

Go Practical Guide: Execute Lua Scripts with go-redis

Tue, 22 Jul 2025 16:56:00 +0800

Go Practical Guide: Execute Lua Scripts with go-redis

Redis command Eval
Redis package redis.NewScript, script.Run

OpenResty + Redis: Block High-Frequency IPs

Thu, 27 Jun 2019 11:18:46 +0800

OpenResty + Redis: Block High-Frequency IPs

init_by_lua_block {
 redis = require "redis"
 client = redis.connect('127.0.0.1', 6379)
}
server {
 listen 8080;
 location / {
 access_by_lua_file /usr/local/nginx/conf/lua/block.lua;
 proxy_pass http://192.168.1.102:8000;
 }
}

-- Redis-based IP rate limiting / blocking for OpenResty (ngx_lua)

-- NOTE:
-- This script assumes a global `client` variable is used/stored.
-- Make sure `redis` module is available and `client` is initialized somewhere.

local function isConnected()
 return client:ping()
end

local function createRedisConnection()
 return redis.connect("127.0.0.1", 6379)
end

-- If the Redis connection fails, stop blocking (allow traffic)
if pcall(isConnected) then
 -- already connected (or ping succeeded)
else
 -- not connected; try reconnect
 if pcall(createRedisConnection) then
 -- Reconnect: this will reconnect Redis on every request
 -- For high traffic, consider disabling reconnect (skip pcall), and allow/terminate directly via ngx.exit
 client = createRedisConnection()
 else
 ngx.exit(ngx.OK)
 end
end

local ttl = 60 -- sampling window (seconds)
local bktimes = 30 -- requests within window to trigger block
local block_ttl = 600 -- block duration after trigger (seconds)

local ip = ngx.var.remote_addr
local ipvtimes = client:get(ip)

if ipvtimes then
 if ipvtimes == "-1" then
 -- blocked
 return ngx.exit(403)
 else
 local last_ttl = client:ttl(ip)
 -- ngx.say("key exist.ttl is ", last_ttl)

 if last_ttl == -1 then
 client:set(ip, 0)
 client:expire(ip, ttl)
 -- ngx.say("ttl & vtimes recount")
 return ngx.exit(ngx.OK)
 end

 local vtimes = tonumber(client:get(ip)) + 1

 if vtimes < bktimes then
 client:set(ip, vtimes)
 client:expire(ip, last_ttl)
 -- ngx.say(ip, " view ", vtimes, " times")
 return ngx.exit(ngx.OK)
 else
 -- ngx.say(ip, " will be block next time.")
 client:set(ip, -1)
 client:expire(ip, block_ttl)
 return ngx.exit(ngx.OK)
 end
 end
else
 -- key does not exist
 client:set(ip, 1)
 -- ngx.say(ip, " view 1 times")
 client:expire(ip, ttl)
 return ngx.exit(ngx.OK)
end