dgnfog_media_resizer

README

DGNFOG Media Resizer

A small image processor script written in go.

Usage

Start the script

# run the script
go run .

# build the script
go build .

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Welcome screen

# +-+ +-+ +-+ +-+ +-+ +-+   +-+ +-+ +-+ +-+ +-+
# |D| |N| |G| |F| |O| |G|   |M| |e| |d| |i| |a|
# +-+ +-+ +-+ +-+ +-+ +-+   +-+ +-+ +-+ +-+ +-+
Use the arrow keys to navigate: ↓ ↑ → ←
? What do you want to do:
  > Fetch images from Server (use JSON)
    Resize images
    Upload to s3 bucket
    Cleanup input folder
    Cleanup output folder
    Exit

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Fetch images from Server (use JSON)

Update the JSON file ./src/json/media.json or get it from the Redaxo backend page (addon Digitalocean) and overwrite it.

The app fetch the images and store it in the input folder ./tmp/in/

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Resize images

Resize all images from the input folder ./tmp/in/and save 4 versions of each image.

Name	width	height
normal	auto	512
small	auto	53
normal-mark	auto	512
small-mark	auto	53

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Upload to s3 bucket

Upload all images from the output folder ./tmp/out/ to a s3 bucket set in the .env file.

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Cleanup input folder

This cleanup the output folder ./tmp/in/ and remove all file.

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Cleanup output folder

This cleanup the output folder ./tmp/out/ and remove all file.

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Exit

Stop the running script. Also Ctrl + C works =)

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Custom folder

Use the .env file to set your own in and out folder and some other stuff.

Default settings:

# Folder
FOLDER_IN="./tmp/in/" 
FOLDER_OUT="./tmp/out/"

# Json
JSON_FILE="./src/json/media.json"

# HTTP
INSECURE_SKIP_VERIFY=true
MAX_IDLE_CONNS=20
MAX_IDLE_CONNS_PER_HOST=20

# s3
S3_REGION="s3"
S3_BUCKET="go_upload"
S3_ENDPOINT="http://localhost:9444/s3"
S3_AKID="AKIAIOSFODNN7EXAMPLE"
S3_SECRET_KEY="wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
S3_TOKEN=""

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Local testing

For local testing i use s3ninja running in Docker. Start the Docker container and open http://localhost:9444/s3/ui in your browser and create a new private bucket called go_upload.

Fetch the test images, resize it and upload it to the s3 bucket.

Done 🐞

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Image from unsplash.com (v0.1-alpha)

• blossom.jpg - alex-blajan-FlUbZ-2S014-unsplash.jpg
• koala.jpg - christine-ellsay-YerVHy1nXq8-unsplash.jpg
• cactus.jpg - david-sola-3guU1kCxxy0-unsplash.jpg
• penguins.jpg - derek-oyen-3Xd5j9-drDA-unsplash.jpg
• desert.jpg - ganapathy-kumar-L75D18aVal8-unsplash.jpg
• tulips.jpg - ilona-frey-lVgR-jwkK7E-unsplash.jpg
• castel.jpg - jacek-dylag-DcQ8dSqEosA-unsplash.jpg
• jellyfish.jpg - jeffrey-hamilton-JtVyK2Sej2I-unsplash.jpg
• waterflower.jpg - jon-geng-MM1FpBrhBPE-unsplash.jpg

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Todo

• check if a file is an image
• upload files in output folder to s3