nginx-image-resizer

Nginx Image Resizer is a Docker-based tool that uses Nginx and ImageMagick to dynamically resize images. When you run this Docker image, you can specify the size of the image through URL parameters, and Nginx Image Resizer will return the resized image. This tool is particularly useful for websites and applications that need to dynamically adjust image sizes.

Build Image

docker build -t ghcr.io/appleboy/nginx-image-resizer .

RUN Image

docker run --restart always \
  -p 8002:80 \
  -e NGINX_HOST=localhost \
  -e IMAGE_HOST="http://localhost:9000" \
  ghcr.io/appleboy/nginx-image-resizer

Paramemter

Parameter	required	default value
NGINX_HOST	true
IMAGE_HOST	true
JPG_QUALITY	false	95
EXPIRE_TIME	false	7d
MEMORY_SIZE	false	20m
CACHE_NAME	false	cache_zone
CACHE_SIZE	false	40m
INACTIVE_TIME	false	30d

example

Start minio and nginx-image-resizer using docker-compose.yml

docker-compose up -d

set minio environment as following

MINIO_ROOT_USER: YOUR_MINIO_ROOT_USER
MINIO_ROOT_PASSWORD: YOUR_MINIO_ROOT_PASSWORD

set bucket as public permission.

mc config host add minio http://localhost:9000 MINIO_ACCESS_KEY MINIO_SECRET_KEY
mc anonymous set public minio/test

open browser as following

# format 1: http://localhost:8002/resize_image_width/bucket_name/image_name
http://localhost:8002/300/test/test.png
# format 2: http://localhost:8002/${image_width}x${image_height}/bucket_name/image_name
http://localhost:8002/300x200/test/test.png

Benchmark

without nginx proxy cache:

echo "GET http://localhost:8002/310/test/26946324088_5b3f0b1464_o.png" | vegeta attack -rate=100 -connections=1 -duration=1s | tee results.bin | vegeta report
Requests      [total, rate]            100, 101.01
Duration      [total, attack, wait]    8.258454731s, 989.999ms, 7.268455731s
Latencies     [mean, 50, 95, 99, max]  3.937031678s, 4.079690985s, 6.958110121s, 7.205018428s, 7.268455731s
Bytes In      [total, mean]            4455500, 44555.00
Bytes Out     [total, mean]            0, 0.00
Success       [ratio]                  100.00%
Status Codes  [code:count]             200:100
Error Set:

with nginx proxy cache:

echo "GET http://localhost:8002/310/test/26946324088_5b3f0b1464_o.png" | vegeta attack -rate=100 -connections=1 -duration=1s | tee results.bin | vegeta report
Requests      [total, rate]            100, 101.01
Duration      [total, attack, wait]    993.312255ms, 989.998ms, 3.314255ms
Latencies     [mean, 50, 95, 99, max]  3.717219ms, 3.05486ms, 8.891027ms, 12.488937ms, 12.520428ms
Bytes In      [total, mean]            4455500, 44555.00
Bytes Out     [total, mean]            0, 0.00
Success       [ratio]                  100.00%
Status Codes  [code:count]             200:100
Error Set:

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