Removed half of the monitor plugins (#6224)

scripts/lua/monitor/redis_monitor.lua

@@ -0,0 +1,202 @@
+--
+-- (C) 2013-22 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+if((dirs.scriptdir ~= nil) and (dirs.scriptdir ~= "")) then package.path = dirs.scriptdir .. "/lua/modules/?.lua;" .. package.path end
+
+require "lua_utils"
+local page_utils = require("page_utils")
+local alert_consts = require("alert_consts")
+local plugins_utils = require("plugins_utils")
+local graph_utils = require("graph_utils")
+local alert_utils = require("alert_utils")
+
+local charts_available = plugins_utils.timeseriesCreationEnabled()
+
+if not isAllowedSystemInterface() then
+   return
+end
+
+sendHTTPContentTypeHeader('text/html')
+
+
+page_utils.set_active_menu_entry(page_utils.menu_entries.redis_monitor)
+
+dofile(dirs.installdir .. "/scripts/lua/inc/menu.lua")
+
+local page = _GET["page"] or "overview"
+local url = plugins_utils.getMonitorUrl("redis_monitor.lua") .. "?ifid=" .. getInterfaceId(ifname)
+
+page_utils.print_navbar("Redis", url,
+			{
+			   {
+			      active = page == "overview" or not page,
+			      page_name = "overview",
+			      label = "<i class=\"fas fa-lg fa-home\"></i>",
+			   },
+			   {
+			      active = page == "stats",
+			      page_name = "stats",
+			      label = "<i class=\"fas fa-lg fa-wrench\"></i>",
+			   },
+			   {
+			      hidden = not charts_available,
+			      active = page == "historical",
+			      page_name = "historical",
+			      label = "<i class='fas fa-lg fa-chart-area'></i>",
+			   },
+			}
+)
+
+-- #######################################################
+
+if(page == "overview") then
+   local fa_external =  "<i class='fas fa-external-link-alt'></i>"
+   local tags = {ifid=getSystemInterfaceId()}
+   print("<table class=\"table table-bordered table-striped\">\n")
+
+   if not ntop.isWindows() then
+      -- NOTE: on Windows, some stats are missing from script.getRedisStatus()
+      print("<tr><td nowrap width='30%'><b>".. i18n("system_stats.health") .."</b><br><small>"..i18n("system_stats.redis.short_desc_redis_health").."</small></td><td></td><td><span id='throbber' class='spinner-border redis-info-load spinner-border-sm text-primary' role='status'><span class='sr-only'>Loading...</span></span> <span id=\"redis-health\"></span></td></tr>\n")
+   end
+
+   print("<tr><td nowrap width='30%'><b>".. i18n("about.ram_memory") .."</b><br><small>"..i18n("system_stats.redis.short_desc_redis_ram_memory").."</small></td>")
+   print("<td class='text-center' width=5%>")
+   print(ternary(charts_available, "<A HREF='"..url.."&page=historical&ts_schema=redis:memory'><i class='fas fa-lg fa-chart-area'></i></A>", ""))
+   print("</td><td><span id='throbber' class='spinner-border redis-info-load spinner-border-sm text-primary' role='status'><span class='sr-only'>Loading...</span></span> <span id=\"redis-info-memory\"></span></td></tr>\n")
+
+   if not ntop.isWindows() then
+      print("<tr><td nowrap width='30%'><b>".. i18n("system_stats.redis.redis_keys") .."</b><br><small>"..i18n("system_stats.redis.short_desc_redis_keys").."</small></td>")
+      print("<td class='text-center' width=5%>")
+      print(ternary(charts_available, "<A HREF='"..url.."&page=historical&ts_schema=redis:keys'><i class='fas fa-chart-area fa-lg'></i></A>", ""))
+      print("</td><td><span id='throbber' class='spinner-border redis-info-load spinner-border-sm text-primary' role='status'><span class='sr-only'>Loading...</span></span> <span id=\"redis-info-keys\"></span></td></tr>\n")
+   end
+
+   print[[<script>
+
+ var last_keys, last_memory
+ var health_descr = {
+]]
+   print('"green" : {"status" : "<span class=\'badge bg-success\'>'..i18n("system_stats.redis.redis_health_green")..'</span>", "descr" : "<small>'..i18n("system_stats.redis.redis_health_green_descr")..'</small>"},')
+   print('"red" : {"status" : "<span class=\'badge bg-danger\'>'..i18n("system_stats.redis.redis_health_red")..'</span>", "descr" : "<small>'..i18n("system_stats.redis.redis_health_red_descr", {product = ntop.getInfo()["product"]})..'</small>"},')
+      print[[
+ };
+
+ function refreshRedisStats() {
+  $.get("]] print(ntop.getHttpPrefix()) print[[/lua/rest/v2/get/redis/redis_info.lua", function(info) {
+     $(".redis-info-load").hide();
+
+     info = info.rsp;
+     
+     if(typeof info.health !== "undefined" && health_descr[info.health]) {
+       $("#redis-health").html(health_descr[info.health]["status"] + "<br>" + health_descr[info.health]["descr"]);
+     }
+     if(typeof info.dbsize !== "undefined") {
+       $("#redis-info-keys").html(NtopUtils.formatValue(info.dbsize) + " ");
+       if(typeof last_keys !== "undefined")
+	 $("#redis-info-keys").append(NtopUtils.drawTrend(info.dbsize, last_keys));
+       last_keys = info.dbsize;
+     }
+     if(typeof info.memory !== "undefined") {
+       $("#redis-info-memory").html(NtopUtils.bytesToVolume(info.memory) + " ");
+       if(typeof last_memory !== "undefined")
+	 $("#redis-info-memory").append(NtopUtils.drawTrend(info.memory, last_memory));
+       last_memory = info.memory;
+     }
+  }).fail(function() {
+     $(".redis-info-load").hide();
+  });
+ }
+
+setInterval(refreshRedisStats, 5000);
+refreshRedisStats();
+ </script>
+ ]]
+   print("</table>\n")
+elseif(page == "stats") then
+
+   print [[
+<div id="table-redis-stats"></div>
+<script type='text/javascript'>
+
+$("#table-redis-stats").datatable({
+   title: "",
+   perPage: 100,
+   hidePerPage: true,
+   url: "]] print(ntop.getHttpPrefix()) print("/lua/rest/v2/get/redis/redis_stats.lua") print[[",
+   columns: [
+     {
+       field: "column_key",
+       hidden: true,
+       css: {
+         width: '15%',
+       }
+     }, {
+       field: "column_command",
+       sortable: true,
+       title: "]] print(i18n("please_wait_page.command")) print[[",
+       css: {
+         width: '15%',
+       }
+     }, {
+       title: "]] print(i18n("chart")) print[[",
+       field: "column_chart",
+       hidden: ]] if not charts_available then print("true") else print("false") end print[[,
+       sortable: false,
+       css: {
+         textAlign: 'center',
+         width: '5%',
+       }
+     }, {
+       title: "]] print(i18n("system_stats.redis.tot_calls")) print[[",
+       field: "column_hits",
+       sortable: true,
+       css: {
+         textAlign: 'right'
+       }
+     }
+   ], tableCallback: function() {
+      datatableInitRefreshRows($("#table-redis-stats"), "column_key", 5000, {"column_hits": NtopUtils.addCommas});
+   }
+});
+</script>
+ ]]
+
+elseif(page == "historical" and charts_available) then
+   local ts_utils = require("ts_utils")
+   local schema = _GET["ts_schema"] or "redis:memory"
+   local selected_epoch = _GET["epoch"] or ""
+   local tags = {ifid = getSystemInterfaceId(), command = _GET["redis_command"]}
+   url = url.."&page=historical"
+
+   local timeseries = {
+      {schema = "redis:memory", label = i18n("about.ram_memory")},
+      {schema = "redis:keys", label = i18n("system_stats.redis.redis_keys")},
+      {separator=1, label=i18n("system_stats.redis.commands")},
+   }
+
+   -- Populate individual commands timeseries
+   local series = ts_utils.listSeries("redis:hits", {ifid = getSystemInterfaceId()}, 0)
+
+   if(series) then
+      for _, serie in pairsByField(series, "command", asc) do
+          timeseries[#timeseries + 1] = {
+             schema = "redis:hits",
+             label = i18n("system_stats.redis.command_hits", {cmd = string.upper(string.sub(serie.command, 5))}),
+             extra_params = {redis_command = serie.command},
+             metrics_labels = {i18n("graphs.num_calls")},
+          }
+      end
+   end
+
+   graph_utils.drawGraphs(getSystemInterfaceId(), schema, tags, _GET["zoom"], url, selected_epoch, {
+       top_redis_hits = "top:redis:hits",
+		 timeseries = timeseries,
+   })
+end
+
+-- #######################################################
+
+dofile(dirs.installdir .. "/scripts/lua/inc/footer.lua")