[haproxy] adds haproxy check

.travis.yml

@@ -45,6 +45,9 @@ env:
     - TRAVIS_FLAVOR=redisdb FLAVOR_VERSION=2.6.17
     - TRAVIS_FLAVOR=redisdb FLAVOR_VERSION=2.8.19
     - TRAVIS_FLAVOR=ssh
+    - TRAVIS_FLAVOR=haproxy FLAVOR_VERSION=1.6.9
+    - TRAVIS_FLAVOR=haproxy FLAVOR_VERSION=1.5.11
+    - TRAVIS_FLAVOR=haproxy FLAVOR_VERSION=1.4.26
     # END OF TRAVIS MATRIX
 
 before_install:

circle.yml

@@ -50,6 +50,7 @@ test:
         - rake ci:run[gearmand]
         - rake ci:run[redisdb]
         - rake ci:run[ssh]
+        - rake ci:run[haproxy]
         - bundle exec rake requirements
     post:
         - if [[ $(docker ps -a -q) ]]; then docker stop $(docker ps -a -q); fi

haproxy/README.md

@@ -0,0 +1,32 @@
+# Haproxy Integration
+
+## Overview
+
+Get metrics from haproxy service in real time to:
+
+* Visualize and monitor haproxy states
+* Be notified about haproxy failovers and events.
+
+## Installation
+
+Install the `dd-check-haproxy` package manually or with your favorite configuration manager
+
+## Configuration
+
+Edit the `haproxy.yaml` file to point to your server and port, set the masters to monitor
+
+## Validation
+
+When you run `datadog-agent info` you should see something like the following:
+
+    Checks
+    ======
+
+        haproxy
+        -----------
+          - instance #0 [OK]
+          - Collected 39 metrics, 0 events & 7 service checks
+
+## Compatibility
+
+The haproxy check is compatible with all major platforms