Add statsd-datadog agent v6 script

scripts/statsd-datadog.sh

@@ -1,3 +1,15 @@
 #!/usr/bin/env bash
 
-datadog-agent start
+if [ $# -eq 0 ]
+  then
+    echo "Supply a datadog API key as an argument to this script"
+fi
+
+docker run --name dd-agent \
+    -v /var/run/docker.sock:/var/run/docker.sock:ro \
+    -v /proc/:/host/proc/:ro \
+    -v /sys/fs/cgroup/:/host/sys/fs/cgroup:ro \
+    -e DD_API_KEY=$1 \
+    -e DD_DOGSTATSD_NON_LOCAL_TRAFFIC=true \
+    -p 8125:8125/udp \
+    datadog/agent:latest