Fixes #153 - add hatop utility for troubleshooting haproxy

ci/release_notes.md

@@ -0,0 +1,12 @@
+# New Features
+
+- The `hatop` utility has been added to haproxy-boshrelease to assist in haproxy troubleshooting
+  http://feurix.org/projects/hatop/ Kudos to @jhunt and the [Genesis Community](https://github.com/genesis-community) for making this possible!
+- @Scoobed added support for specifying additional filesystem paths to make available to the HAProxy
+  process via BPM's [unrestricted volumes list](https://github.com/cloudfoundry/bpm-release/blob/master/docs/config.md#unsafe-schema). 
+  This is particularly helpful when integrating LUA scripts from other BOSH releases. The 
+  `ha_proxy.additional_unrestricted_volumes` will allow this, and uses the same syntax as BPM.
+
+# Acknowledgements
+
+Thanks @jhunt and @Scoobed!

config/blobs.yml

@@ -10,6 +10,9 @@ haproxy/haproxy-1.8.20.tar.gz:
   size: 2083917
   object_id: 4a94da26-7a25-4117-5e48-057d6a31fa03
   sha: 7aa627e4ae0b2ee603d5525436c7f4d13b8e2f5e
+haproxy/hatop:
+  size: 72429
+  sha: daddb3f13a70d4e2fa0802333c2e13468635171f
 haproxy/lua-5.3.5.tar.gz:
   size: 303543
   object_id: 5acd4a28-51a4-45ed-536b-766fec394fa5

packages/haproxy/packaging

@@ -37,3 +37,8 @@ pushd haproxy-${HAPROXY_VERSION}
   cp haproxy ${BOSH_INSTALL_TARGET}/bin/
   chmod 755 ${BOSH_INSTALL_TARGET}/bin/haproxy
 popd
+
+cp haproxy/hatop ${BOSH_INSTALL_TARGET}/bin/hatop
+chmod 755 ${BOSH_INSTALL_TARGET}/bin/hatop
+cp hatop-wrapper ${BOSH_INSTALL_TARGET}/
+chmod 755 ${BOSH_INSTALL_TARGET}/hatop-wrapper

packages/haproxy/spec

@@ -5,3 +5,5 @@ files:
 - haproxy/pcre2-*.tar.gz
 - haproxy/socat-*.tar.gz
 - haproxy/lua-*.tar.gz
+- haproxy/hatop
+- hatop-wrapper

src/hatop-wrapper

@@ -0,0 +1,9 @@
+#!/bin/bash
+if [[ -z "${1:-}" ]]; then
+  if [[ -e /var/vcap/sys/run/haproxy/stats.sock ]]; then
+    exec /var/vcap/packages/haproxy/bin/hatop -s /var/vcap/sys/run/haproxy/stats.sock
+  elif [[ -e /var/vcap/sys/run/haproxy/stats1.sock ]]; then
+    exec /var/vcap/packages/haproxy/bin/hatop -s /var/vcap/sys/run/haproxy/stats1.sock
+  fi
+fi
+exec /var/vcap/packages/haproxy/bin/hatop "$@"