Monitoring for bridgehead startup and update (#22)

lib/monitoring.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+source lib/log.sh
+
+function hc_set_uuid(){
+    HCUUID="$1"
+}
+
+function hc_set_service(){
+    HCSERVICE="$1"
+}
+
+UPTIME=
+
+function hc_send(){
+    if [ -n "$MONITOR_APIKEY" ]; then
+        hc_set_uuid $MONITOR_APIKEY
+    fi
+
+    if [ -n "$HCSERVICE" ]; then
+        HCURL="https://hc-ping.com/$PING_KEY/$HCSERVICE"
+    fi
+    if [ -n "$HCUUID" ]; then
+        HCURL="https://hc-ping.com/$HCUUID"
+    fi
+    if [ ! -n "$HCURL" ]; then
+        log WARN "Healthcheck reporting failed: Neither Healthcheck UUID nor service set - please check config in /etc/bridgehead"
+        return 1
+    fi
+
+    if [ -z "$UPTIME" ]; then
+        UPTIME=$(docker ps --format '{{.Names}} {{.RunningFor}}' --filter name=bridgehead || echo "Unable to get docker statistics")
+    fi
+
+    if [ -n "$2" ]; then
+        MSG="$2\n\nDocker stats:\n$UPTIME"
+        echo -e "$MSG" | https_proxy=$HTTPS_PROXY_URL curl -s -o /dev/null -X POST --data-binary @- "$HCURL"/"$1" || log WARN "Monitoring failed: Unable to send data to $HCURL/$1"
+    else
+        https_proxy=$HTTPS_PROXY_URL curl -s -o /dev/null "$HCURL"/"$1" || log WARN "Monitoring failed: Unable to send data to $HCURL/$1"
+    fi
+}