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jekyll-s3

  • 3.2.0
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jekyll-s3

[Build Status] (http://travis-ci.org/laurilehmijoki/jekyll-s3) Gem Version

Deploy your jekyll site to S3.

What jekyll-s3 can do for you

  • Upload your site to AWS S3
  • Help you use AWS Cloudfront to distribute your Jekyll blog
  • Create an S3 website for you
  • Improve page speed with HTTP cache control and gzipping
  • Set HTTP redirects for your website
  • (for other features, see the documentation below)

Install

gem install jekyll-s3

Usage

  • Go to your jekyll site directory
  • Run jekyll-s3. It generates a configuration file called _jekyll_s3.yml that looks like this:
s3_id: YOUR_AWS_S3_ACCESS_KEY_ID
s3_secret: YOUR_AWS_S3_SECRET_ACCESS_KEY
s3_bucket: your.blog.bucket.com
  • Edit it with your details (you can use ERB in the file)

  • Run configure-s3-website --config-file _jekyll_s3.yml This will configure your bucket to function as an S3 website. If the bucket does not exist, configure-s3-website will create it for you.

  • Run jekyll-s3 to push your Jekyll blog to S3. Congratulations! You are live.

(If you are using jekyll-s3 on an EC2 instance with IAM roles, you can omit the s3_id and s3_secret keys in the config file.)

Using environment variables

You can use ERB in your _jekyll_s3.yml file which incorporates environment variables:

s3_id: <%= ENV['S3_ID'] %>
s3_secret: <%= ENV['S3_SECRET'] %>
s3_bucket: blog.example.com

Additional features

Cache Control

You can use the max_age configuration option to enable more effective browser caching of your static assets. There are two possible ways to use the option: you can specify a single age (in seconds) like so:

max_age: 300

Or you can specify a hash of globs, and all files matching those globs will have the specified age:

max_age:
  "assets/*": 6000
  "*": 300

Place the configuration into the file _jekyll_s3.yml.

Gzip Compression

If you choose, you can use compress certain file types before uploading them to S3. This is a recommended practice for maximizing page speed and minimizing bandwidth usage.

To enable Gzip compression, simply add a gzip option to your _jekyll_s3.yml configuration file:

gzip: true

Note that you can additionally specify the file extensions you want to Gzip (.html, .css, .js, and .txt will be compressed when gzip: true):

gzip:
  - .html
  - .css
  - .md

Remember that the extensions here are referring to the compiled extensions, not the pre-processed extensions.

Using non-standard AWS regions

By default, jekyll-s3 uses the US Standard Region. You can upload your Jekyll site to other regions by adding the setting s3_endpoint into the _jekyll_s3.yml file.

For example, the following line in _jekyll_s3.yml will instruct jekyll_s3 to push your site into the Tokyo region:

s3_endpoint: ap-northeast-1

The valid s3_endpoint values consist of the S3 location constraint values.

Ignoring files you want to keep on AWS

Sometimes there are files or directories you want to keep on S3, but not on your local machine. You may define a regular expression to ignore files like so:

ignore_on_server: that_folder_of_stuff_i_dont_keep_locally

Reduced Redundancy

You can reduce the cost of hosting your blog on S3 by using Reduced Redundancy Storage:

  • In _jekyll_s3.yml, set s3_reduced_redundancy: true
  • All objects uploaded after this change will use the Reduced Redundancy Storage.
  • If you want to change all of the files in the bucket, you can change them through the AWS console, or update the timestamp on the files before running jekyll-s3 again

How to use Cloudfront to deliver your blog

It is easy to deliver your S3-based web site via Cloudfront, the CDN of Amazon.

Creating a new CloudFront distribution

When you run the command configure-s3-website, it will ask you whether you want to deliver your website via CloudFront. If you answer yes, configure-s3-website will create a CloudFront distribution for you.

This feature was added into the version 1.3.0 of the configure-s3-website gem. For more information, see the gem's documentation.

Using your existing CloudFront distribution

If you already have a CloudFront distribution that serves data from your Jekyll S3 bucket, just add the following line into the file _jekyll_s3.yml:

cloudfront_distribution_id: your-dist-id

Next time you run jekyll-s3, it will invalidate the items on CloudFront and thus force the CDN system to reload the changes from your Jekyll S3 bucket.

Specifying custom settings for your CloudFront distribution

The gem configure-s3-website, which is a dependency of jekyll-s3, lets you define custom settings for your CloudFront distribution.

For example, like this you can define a your own TTL and CNAME:

cloudfront_distribution_config:
  default_cache_behavior:
    min_TTL: <%= 60 * 60 * 24 %>
  aliases:
    quantity: 1
    items:
      CNAME: your.website.com

See the gem's documentation for more info.

The headless mode

Jekyll-s3 has a headless mode, where human interactions are disabled.

In the headless mode, jekyll-s3 will automatically delete the files on the S3 bucket that are not on your local computer.

Enable the headless mode by adding the --headless or -h argument after jekyll-s3.

Configuring redirects on your Jekyll S3 website

You can set HTTP redirects on your Jekyll S3 website in two ways. If you only need simple "301 Moved Premanently" redirects for certain keys, use the Simple Redirects method. Otherwise, use the Routing Rules method.

Simple Redirects

For simple redirects Jekyll S3 uses Amazon S3's x-amz-website-redirect-location metadata. It will create zero-byte objects for each path you want redirected with the appropriate x-amz-website-redirect-location value.

For setting up simple redirect rules, simply list each path and target as key-value pairs under the redirects configuration option:

redirects:
  index.php: /
  about.php: about.html
  music-files/promo.mp4: http://www.youtube.com/watch?v=dQw4w9WgXcQ
Routing Rules

You can configure more complex redirect rules by adding the following configuration into the _jekyll_s3.yml file:

routing_rules:
  - condition:
      key_prefix_equals: blog/some_path
    redirect:
      host_name: blog.example.com
      replace_key_prefix_with: some_new_path/
      http_redirect_code: 301

After adding the configuration, run the command configure-s3-website --config _jekyll_s3.yml on your command-line interface. This will apply the routing rules on your S3 bucket.

For more information on configuring redirects, see the documentation of the configure-s3-website gem, which comes as a transitive dependency of the jekyll-s3 gem.

Using jekyll-s3 as a library

By nature, jekyll-s3 is a command-line interface tool. You can, however, use it programmatically by calling the same API as the executable jekyll-s3 does:

require 'jekyll-s3'
is_headless = true
Jekyll::S3::CLI.new.run('/path/to/your/jekyll-site/_site/', is_headless)

You can also use a basic Hash instead of a _jekyll_s3.yml file:

config = {
  "s3_id"     => YOUR_AWS_S3_ACCESS_KEY_ID,
  "s3_secret" => YOUR_AWS_S3_SECRET_ACCESS_KEY,
  "s3_bucket" => "your.blog.bucket.com"
}
in_headless = true
Jekyll::S3::Uploader.run('/path/to/your/jekyll-site/_site/', config, in_headless)

The code above will assume that you have the _jekyll_s3.yml in the directory /path/to/your/jekyll-site.

Example configurations

See https://github.com/laurilehmijoki/jekyll-s3/blob/master/example-configurations.md.

Known issues

None. Please send a pull request if you spot any.

Development

Versioning

Jekyll-s3 uses Semantic Versioning.

Tests

  • Install bundler and run bundle install
  • Run all tests by invoking rake test
  • Run the integration tests by running bundle exec cucumber
  • Run the unit tests by running bundle exec rspec spec/lib/*.rb

Contributing

We (users and developers of Jekyll-s3) welcome patches, pull requests and ideas for improvement.

When sending pull requests, please accompany them with tests. Favor BDD style in test descriptions. Use VCR-backed integration tests where possible. For reference, you can look at the existing Jekyll-s3 tests.

If you are not sure how to test your pull request, you can ask the gem owners to supplement the request with tests. However, by including proper tests, you increase the chances of your pull request being incorporated into future releases.

License

MIT

Copyright (c) 2011 VersaPay, Philippe Creux.

Contributors (in alphabetical order)

  • Alan deLevie
  • Cory Kaufman-Schofield
  • Chris Kelly
  • Chris Moos
  • David Michael Barr
  • László Bácsi
  • Lauri Lehmijoki
  • Mason Turner
  • Michael Bleigh
  • Shigeaki Matsumura
  • stanislas
  • Trevor Fitzgerald
  • Zee Spencer

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Package last updated on 22 Jun 2013

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