Stub calls to AWS metadata API on CI.

Author: ppostma

spec/spec_helper.rb

@@ -28,4 +28,25 @@
     SSHKit::EC2InstanceConnect::Backend.ssh_keys.clear
     SSHKit::EC2InstanceConnect::Backend.tunnels.clear
   end
+
+  # Stub calls to AWS metadata API on CI.
+  if ENV['CI']
+    config.before do
+      stub_request(:put, 'http://169.254.169.254/latest/api/token').to_return(status: 200)
+
+      stub_request(:get, 'http://169.254.169.254/latest/meta-data/iam/security-credentials/')
+        .to_return(status: 200, body: 'DummyRole')
+
+      stub_request(:get, 'http://169.254.169.254/latest/meta-data/iam/security-credentials/DummyRole')
+        .to_return(status: 200, body: {
+          Code: 'Success',
+          LastUpdated: Time.now.utc.iso8601,
+          Type: 'AWS-HMAC',
+          AccessKeyId: SecureRandom.alphanumeric(10),
+          SecretAccessKey: SecureRandom.alphanumeric(20),
+          Token: SecureRandom.alphanumeric(60),
+          Expiration: (Time.now + 3600).utc.iso8601
+        }.to_json)
+    end
+  end
 end