Thumbor

An inoffical thumbor docker image, made with ❤️

What is Thumbor?

Thumbor is a smart imaging service. It enables on-demand crop, resizing and flipping of images.

See: http://thumbor.org

How to use this image

Simply run: docker run -p 8888:8888 mvhirsch/thumbor:latest You're now ready to serve.

It will run with the local result-storage /usr/local/thumbor/result.

Configuration

You can override anything by passing the ENV parameters to your docker run command. Take a look at the configuration file at configuration template.

Volumes

By default thumbor uses local file based storages, you could mount volumes to:

• /usr/local/thumbor/storage
• /usr/local/thumbor/result_storage

If you need another storage system, please check out the docs. If you need AWS S3 support, check out mvhirsch/thumbor-fundamentals:7-slim image.

Securing thumbor

On production systems please consider the following options:

• ALLOW_UNSAFE_URL (default False): Disallow "unsafe" (non HMAC-signed) URLs Docs
• SECURITY_KEY (default MY_SECURE_KEY): a shared secret for HMAC-signing URLs

Please check out HMAC signing in the docs for more information.

Healthcheck

On production you should enable a healthcheck to make sure, your service is up and running. Luckily thumbor comes with a simple healthcheck API built-in.

By default, it's localhost:8888/healthcheck/?. You can change it with the HEALTHCHECK_ROUTE environment variable.

Image Variants

Currently this image comes only with basic packages needed to run thumbor.

mvhirsch/thumbor:7-slim

The defacto image. This is build upon python:3-slim.

mvhirsch/thumbor:7-alpine

An alpine version for smaller image size.

mvhirsch/thumbor-fundamentals:7-slim

I love the word "fundamentals" in here. The main idea of this image, is to provide a current recommended solution (2018) based on Google's Web Fundamentals.

For now, this comes with mozjpeg (lossy) and pngquant (lossy) to optimize images by default.

It also supports AWS S3, you just need to add some configuration:

# if you use unsafe (non HMAC) URLs and want to store results, too - you need to activate them. If you always use HMAC signed URLs, you can simply skip this setting
RESULT_STORAGE_STORES_UNSAFE: True

# configure Result Storage
RESULT_STORAGE: thumbor_aws.result_storage
AWS_RESULT_STORAGE_BUCKET_NAME: thumbor
AWS_RESULT_STORAGE_ROOT_PATH: /thumbs
AWS_RESULT_STORAGE_S3_ACCESS_KEY_ID: <access key>
AWS_RESULT_STORAGE_S3_SECRET_ACCESS_KEY: <secret>

# configure storage (cache)
STORAGE: thumbor_aws.storage
AWS_STORAGE_ROOT_PATH: /storage
AWS_STORAGE_BUCKET_NAME: thumbor
AWS_STORAGE_S3_ACCESS_KEY_ID: <access key>
AWS_STORAGE_S3_SECRET_ACCESS_KEY: <secret>