aws_s3_imagetag

An Octopress plugin to upload files to AWS S3 and provide a tag to reference the files in your views.

Features

• Uploads images to S3 bucket using the aws-s3 Rubygem
• Includes Cache-Control and Expires headers pre-configured for 1 year of caching
• Extends the s3_image_tag - examples here and here

Installation

Place your files under the directory defined as your env variable S3_DIR (see environment variables below). When you generate your site the files will be uploaded to your S3 AWS account. and then you can use the tag AWS_S3_Image which allows you reference images we just hosted on Amazon S3 within your posts. A bit of a contrived example, but it demonstrates the process of creating custom Liquid tags.

Usage

To use it, just place some images in $S3_DIR (they will be uploaded and made publicly accessible) and use the tag with the syntax:

{% AWS_S3_Image filename [bucket:bucket_name] [folder:folder_name] %}.

If you don't specify a bucket name and folder name in the view as shown above, it will look for an environment variable.

Environment Variable

(I did not want to expose the credential, so using ENV variables)

export AWS_BUCKET=your bucket name
export AWS_BUCKET_FOLDER=folder name               # if your images are under a folder inside the bucket
export AWS_ACCESS_KEY_ID=Your S3 Access Key
export AWS_SECRET_ACCESS_KEY=Your S3 Secret key
export S3_DIR=source/images/TO_S3                  # Directory from where the files will be uploaded
export AWS_UPLOAD=true                             # set false if you dont want to upload and just use the
												   # tag to refer s3 images/files

If you want to avoid referencing the annoyingly long aws s3 url, you can set your custom domain url and set it as an env variable (You will have to setup your CNAME for this, Refer to one of my post 'Coming Soon')

export AWS_CUSTOM_DOMAIN=pics.mydomain.com

In this case the final html will have image tag as

<img src="http://pics.mydomain.com/folder/image.jpg">

And you can avoid the URLs in form of

<img src="https://s3.amazonaws.com/bucket/folder/image.jpg">

Examples

• {% AWS_S3_Image ash2.jpg bucket:my.bucket folder:friends/avatars/000/000/003/original %}
• {% AWS_S3_Image myimage.jpg %} # with configuration used form _config.yml