Setting Up S3 CDN

Setting up S3 is a matter of uncommenting some settings in your config/storage.yml file:

<span class="hljs-attr">amazon:</span>
  <span class="hljs-attr">service:</span> <span class="hljs-string">S3</span>
  <span class="hljs-attr">access_key_id:</span> &lt;%=<span class="language-ruby"><span class="hljs-variable constant_">ENV</span>.fetch(<span class="hljs-string">&quot;AWS_ACCESS_KEY_ID&quot;</span>)</span>%&gt;
  <span class="hljs-attr">secret_access_key:</span> &lt;%=<span class="language-ruby"> <span class="hljs-variable constant_">ENV</span>.fetch(<span class="hljs-string">&quot;AWS_SECRET_ACCESS_KEY&quot;</span>) </span>%&gt;
  <span class="hljs-attr">region:</span> <span class="hljs-string">us-west-1</span>
  <span class="hljs-attr">bucket:</span> <span class="hljs-string">bigrails</span>
  <span class="hljs-attr">public:</span> <span class="hljs-literal">true</span>

You then need to set config/environments/production.rb to use the amazon provider:

config.active_storage.service = <span class="hljs-symbol">:amazon</span>