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@crazygit
crazygit / photo.py
Created September 1, 2025 01:28
2 寸照片排版(4R 照相纸)
# uv add pillow
from PIL import Image, ImageOps
# 打开原图
input_path = "/path/to/input/image.jpg"
img = Image.open(input_path)
# 2寸照片尺寸：3.5cm x 5.3cm -> 换算像素 (300 dpi = 118.11 px/cm)
cm_to_px = lambda cm: int(cm * 118.11)
target_size = (cm_to_px(3.5), cm_to_px(5.3)) # 约 413 x 626 px
@crazygit
crazygit / aws-go-s3-download-upload-at-once.go
Created September 2, 2024 02:09
Implementing S3 File Transfer with Go: Download and Upload at Once
package main
import (
"context"
"fmt"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/feature/s3/manager"
"github.com/aws/aws-sdk-go-v2/service/s3"
"github.com/dustin/go-humanize"
@crazygit
crazygit / Vagrantfile
Created November 27, 2023 04:44
Setup K8S Cluster with Vagrant and Kubeadm
# -*- mode: ruby -*-
# vi: set ft=ruby :
Vagrant.configure("2") do |config|
# common config for master and node
config.vm.provision "shell", path: "init.sh"
config.vm.box = "gyptazy/ubuntu22.04-arm64"
config.vm.box_check_update = false
@crazygit
crazygit / kubectl_config.md
Last active April 21, 2023 12:02
kubectl多配置文件管理

多集群的配置文件管理，可以在~/.kube/目录中，放置多个集群的配置文件，如

~/.kube/cluster_a.yaml
~/.kube/cluster_b.yaml
~/.kube/cluster_c.yaml

然后配置环境变量

@crazygit
crazygit / telegram_auto_checkin.py
Last active March 19, 2024 09:35
Telegram auto checkin script
from telethon import TelegramClient, events
import pathlib
# Remember to use your own values from my.telegram.org!
api_id = 12345
api_hash = '0123456789abcdef0123456789abcdef'
# Replace the checkin bot and text with yourown
checkin_at_bot_id = '@checkin_bot'
checkin_text = '/checkin'
@crazygit
crazygit / parseTransaction.go
Last active April 6, 2025 08:22
Parse Ethereum Transaction, Decode input data, Decode output data
package main
import (
"context"
"encoding/hex"
"fmt"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethclient"
@crazygit
crazygit / .env.example
Last active May 8, 2022 14:38
Use traefik in docker swarm cluster, Ultimate configuration
ACME_EMAIL=your_mail@example.com
DASHBOARD_DOMAIN=traefik.example.com
WHOAMI_SERVICE_DOMAIN=whoami.example.com
# echo "DASHBOARD_USER=$(htpasswd -nb your_name your_password)" >> .env
DASHBOARD_USER=your_name:$apr1$eMFHYd7e$2rl6G/UF80alLYInwv/tz0
@crazygit
crazygit / traefik-bare-secure-mode.yml
Last active May 8, 2022 14:38
Expose Traefik dashboard in secure mode
# bare secure mode: no https, no basic auth
version: '3.8'
services:
reverse_proxy:
image: traefik:v2.6
command:
# - "--log.level=DEBUG"
# Enable Docker in Traefik, so that it reads labels from Docker services
- "--providers.docker"
@crazygit
crazygit / go-ethereum-get-transaction.go
Created April 26, 2022 09:29
Get transaction value and data
package main
import (
"context"
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethclient"
"log"
)
@crazygit
crazygit / go-ethereum-read-event.go
Last active April 26, 2022 08:48
read contract event with go ethereum
package main
import (
"context"
"fmt"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"log"
"math/big"