Install Fluentd's input during initial provision

GELFUDPInput.json

@@ -0,0 +1,14 @@
+{
+  "title": "Fluentd",
+  "type": "org.graylog2.inputs.gelf.udp.GELFUDPInput",
+  "global": true,
+  "configuration": {
+    "bind_address": "0.0.0.0",
+    "decompress_size_limit": 8388608,
+    "recv_buffer_size": 1048576,
+    "number_worker_threads": 4,
+    "port": 12201,
+    "recv_buffer_size": 262144
+        },
+  "node": null
+}

Vagrantfile

@@ -60,6 +60,15 @@ Vagrant.configure("2") do |config|
     /usr/local/bin/docker-compose up -d 2> /dev/null
     cd /vagrant/wordpress
     /usr/local/bin/docker-compose up -d 2> /dev/null
+    echo "Waiting 60 seconds for Graylog to become available..."
+    sleep 60
+    cd /vagrant
+    curl -i -X POST \
+        -H "Content-Type: application/json" \
+        -H "X-Requested-By: cli" \
+        -u admin:admin \
+        "http://graylog.172.28.128.30.xip.io:8080/api/system/inputs" \
+        -d @GELFUDPInput.json
   SHELL
 
 end