Add devstack support

Add devstack plugin for deploying the plugin.

Change-Id: I4ecbc8e30025604eae5d159b4f2506fe3ed484ce

devstack/libs/collectd

@@ -0,0 +1,74 @@
+#!/bin/bash
+#
+# common functions for collectd ceilometer plugin
+# -----------------------------------------------
+
+
+# start/stop service
+#
+function start_collectd {
+    if [ -e /usr/lib/systemd/system/collectd.service ]; then
+        sudo service collectd start
+    fi
+}
+
+function stop_collectd {
+    if [ -e /usr/lib/systemd/system/collectd.service ]; then
+        sudo service collectd stop
+    fi
+}
+
+# install collectd service
+function install_collectd {
+    install_package collectd
+}
+
+# Add conf file for plugin
+function adapt_collectd_conf {
+
+cat << EOF | sudo tee /etc/collectd.d/collectd-ceilometer-plugin.conf
+<LoadPlugin python>
+  Globals true
+</LoadPlugin>
+
+<Plugin python>
+    ModulePath "$COLLECTD_DIR"
+    LogTraces true
+    Interactive false
+    Import "collectd_ceilometer"
+
+    <Module collectd_ceilometer>
+
+        # Batch size
+        BATCH_SIZE 3
+
+        # Service endpoint addresses
+        OS_AUTH_URL "$OS_AUTH_URL"
+
+        # Ceilometer address
+        #CEILOMETER_ENDPOINT
+        CEILOMETER_URL_TYPE "$CEILOMETER_URL_TYPE"
+
+        # Ceilometer timeout in ms
+        CEILOMETER_TIMEOUT "$CEILOMETER_TIMEOUT"
+
+        # # Ceilometer user creds
+        OS_USERNAME "$OS_USERNAME"
+        OS_PASSWORD "$OS_PASSWORD"
+        OS_TENANT_NAME "service"
+
+    </Module>
+</Plugin>
+EOF
+
+}
+
+
+# remove plugin conf file
+function restore_collectd_conf {
+
+    if [ -f '/etc/collectd.d/collectd-ceilometer-plugin.conf' ]; then
+        sudo rm -f /etc/collectd.d/collectd-ceilometer-plugin.conf
+    fi
+
+}

devstack/plugin.sh

@@ -0,0 +1,39 @@
+local xtrace=$(set +o | grep xtrace)
+set -o xtrace
+
+    # Initial source of lib script
+    source $COLLECTD_DIR/devstack/libs/collectd
+
+    case $1 in
+        "stack")
+            case $2 in
+                "pre-install")
+                    # install system package
+                    install_collectd
+                ;;
+                "install")
+                    # adapt collectd.conf
+                    adapt_collectd_conf
+                ;;
+                "post-config")
+                    # start collectd service
+                    start_collectd
+                ;;
+                "extra")
+                    # no-op
+                    :
+                ;;
+            esac
+        ;;
+        "unstack")
+            #  stop the service and restore original /etc/collect.conf
+            stop_collectd
+            restore_collectd_conf
+        ;;
+        "clean")
+            # no cleaning required as of now
+            :
+        ;;
+    esac
+
+$xtrace

devstack/settings

@@ -0,0 +1,15 @@
+# General settings
+COLLECTD_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )
+COLLECTD_BATCH_SIZE=${COLLECTD_BATCH_SIZE:-3}
+
+# Ceilometer connection info.
+CEILOMETER_URL_TYPE=${CEILOMETER_URL_TYPE:-internalURL}
+CEILOMETER_TIMEOUT=${CEILOMETER_TIMEOUT:-1000}
+
+# Auth info
+OS_AUTH_URL="$KEYSTONE_AUTH_URI/v$IDENTITY_API_VERSION"
+OS_USERNAME="ceilometer"
+OS_PASSWORD=${SERVICE_PASSWORD}
+
+
+