Wain is a http proxy that allows to dynamically resize and serve images from an s3 bucket.
brew install homebrew/science/vips --with-mozjpeg
docker run -v /home/user/config.yaml:/config.yaml -p 3000:3000 monder/wain /config.yaml
Wain allows to configure routes in yaml format.
# vim: ts=2:sw=2
port: 3000
buckets:
- name: wain-demo-content
region: eu-west-1
accessKey: AKIAJMK6JWZF4F4JBSXQ
accessSecret: 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
urls:
- pattern: /images/{id:IMG_\d+}/{width:[0-9]+}{height:(x[0-9]+)?}.jpg
original:
bucket: wain-demo-content
key: original/{id}.JPG
cache:
bucket: wain-demo-content
key: cache/{id}/{width}{height}.jpgThe configuration above will process the urls only matching the pattern /images/{id:IMG_\d+}/{width:[0-9]+}{height:(x[0-9]+)?}.jpg capturing the variables.
Note thate the height parameter is optional (?) and the pattern will match both:
/images/IMG_2530/100.jpg
and
/images/IMG_2530/100x150.jpg
The file will be downloaded from the bucket specified in original. bucket name is looked up in buckets section. key should be the file name inside the bucket. All variables captured in pattern could be used here to generate the key. All unknown variables are replaced with an empty string ("").
Requesting the file /images/IMG_2530/100.jpg will download and resize file wain-demo-content/original/IMG_2530.JPG to width 100px and some height keeping the aspect ratio of the original.
100:
Specifying the height as well as width will fit the original, adding a blurred background:
100x150:
150x100:
