[feature] Support third-party S3 providers

Fixes #151

Specify the endpoing via AWS_ENDPOINT=“…” and optionally enforce path-style access via S3_FORCE_PATH_STYLE=“true”

.env.example

@@ -3,5 +3,6 @@ MLH_SECRET="bar"
 AWS_BUCKET="foo"
 AWS_ACCESS_KEY_ID="abc"
 AWS_SECRET_ACCESS_KEY="123"
-AWS_REGION="bar"
+AWS_REGION="us-east-1"
+AWS_ENDPOINT=""
 SPARKPOST_API_KEY="foo"

app.json

@@ -46,6 +46,11 @@
     "AWS_REGION": {
       "description": "AWS Secret Access Key to store resumes via S3",
       "value": "us-east-1",
+      "required": false
+    },
+    "AWS_ENDPOINT": {
+      "description": "If you are using an S3-compliant storage provider, specify its custom endpoint here. Otherwise leave blank.",
+      "value": "",
       "required": true
     },
     "ROLLBAR_ACCESS_TOKEN": {

config/storage.yml

@@ -12,3 +12,9 @@ amazon:
   secret_access_key: <%= ENV["AWS_SECRET_ACCESS_KEY"] %>
   region: <%= ENV["AWS_REGION"] %>
   bucket: <%= ENV["AWS_BUCKET"] %>
+  <% if ENV["AWS_ENDPOINT"].present? %>
+  endpoint: <%= ENV["AWS_ENDPOINT"] %>
+  <% end %>
+  <% if ENV["S3_FORCE_PATH_STYLE"] == "true" %>
+  force_path_style: true
+  <% end %>