Add iostat output

.gitignore

@@ -2,3 +2,4 @@ node_modules
 *.log
 */linuxDash.min.js.map
 temp
+package-lock.json

app/server/linux_json_api.sh

@@ -9,13 +9,43 @@ CAT=$(type -P cat)
 HEAD=$(type -P head)
 CUT=$(type -P cut)
 PS=$(type -P ps)
+IOSTAT=$(type -p iostat)
+WC=$(type -p wc)
+TAIL=$(type -p tail)
 
 _parseAndPrint() {
   while read data; do
     $ECHO -n "$data" | $SED -r 's/\\//g' | $TR -d "\n";
   done;
 }
 
+rt_iostat() {
+    num=$($CAT /proc/diskstats  | $GREP -E "vd. |sd. |dm|hd. " | $WC -l)
+    data=$($IOSTAT  -dxm 1 2 | $GREP -E "sd. |dm|hd. |vd. " | $TAIL -n ${num} | $AWK '{printf $0"\n"}')
+    IFSOLD=$IFS
+    IFS=$'\n'
+
+    result=$(
+    for  line in ${data}
+    do
+        $ECHO $line | $AWK '{print \
+    "{ \
+\"Device\": \""$1"\", \
+\"r/s\": "$4", \
+\"w/s\": "$5", \
+\"rMB/s\": "$6", \
+\"wMB/s\": "$7", \
+\"await\": "$10", \
+\"%util\": "$14" \
+ },"}'
+    done
+)
+
+IFS=$IFSOLD
+
+$ECHO -e  "[\n""${result}""\n]" | $SED 'N;$s/,\n/\n/;P;D' |  _parseAndPrint
+}
+
 arp_cache() {
   local arpCommand=$(type -P arp)
 

src/js/core/routes.js

@@ -32,6 +32,7 @@ function routesFn($routeProvider) {
         '<disk-space sortablejs-id="disk-space"></disk-space> ',
         '<swap-usage sortablejs-id="swap-usage"></swap-usage> ',
         '<docker-processes sortablejs-id="docker"></docker-processes> ',
+        '<rt-iostat sortablejs-id="rt-iostat"></rt-iostat> ',
       ].join(''),
     })
 

src/js/plugins/simple-table-data-plugins.directive.js

@@ -90,7 +90,12 @@ var simpleTableModules = [
   {
     name: 'cronHistory',
     template: '<table-data heading="Cron Job History" module-name="cron_history" info="Crons which have run recently."></table-data>'
-  }
+  },
+  {
+    name: 'rtIostat',
+    template: '<table-data heading="Disk realTime iostat" module-name="rt_iostat" info="real time iostat value."></table-data>'
+  },
+
 ]
 
 simpleTableModules.forEach(function(module, key) {