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Implement ntopng plugins
Plugins are a convenient way to group together related lua scripts. Their primary use case is to group user scripts and their alert/status definition. The builtin ntopng user scripts and definitions are now packed into plugins directories. In future, we will support loading of user created plugins. Plugins are loaded at startup into some runtime directories and then used. Other changes provided by this commit include: - Add sample flow logger plugin - Initial support for system user scripts - Rename edge to threshold - Migrate system probes to user scripts/plugins - Migrate scripts to more explicit alerts_api.checkThresholdAlert api
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emanuele-f
parent
df245fad3a
commit
a3432e00e8
218 changed files with 2070 additions and 2097 deletions
208
scripts/plugins/redis_monitor/web_gui/redis_stats.lua
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208
scripts/plugins/redis_monitor/web_gui/redis_stats.lua
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--
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-- (C) 2013-19 - ntop.org
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--
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local dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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if((dirs.scriptdir ~= nil) and (dirs.scriptdir ~= "")) then package.path = dirs.scriptdir .. "/lua/modules/?.lua;" .. package.path end
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active_page = "system_stats"
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require "lua_utils"
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local page_utils = require("page_utils")
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local ts_utils = require("ts_utils")
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local alert_consts = require("alert_consts")
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local plugins_utils = require("plugins_utils")
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require("graph_utils")
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require("alert_utils")
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local ts_creation = plugins_utils.timeseriesCreationEnabled()
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if not isAllowedSystemInterface() then
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return
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end
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sendHTTPContentTypeHeader('text/html')
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page_utils.print_header()
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dofile(dirs.installdir .. "/scripts/lua/inc/menu.lua")
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local page = _GET["page"] or "overview"
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local url = plugins_utils.getUrl("redis_stats.lua") .. "?ifid=" .. getInterfaceId(ifname)
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page_utils.print_navbar("Redis", url,
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{
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{
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active = page == "overview" or not page,
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page_name = "overview",
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label = "<i class=\"fa fa-lg fa-home\"></i>",
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},
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{
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active = page == "stats",
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page_name = "stats",
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label = "<i class=\"fa fa-lg fa-wrench\"></i>",
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},
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{
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hidden = not ts_creation,
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active = page == "historical",
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page_name = "historical",
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label = "<i class='fa fa-lg fa-chart-area'></i>",
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},
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}
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)
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-- #######################################################
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if(page == "overview") then
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local fa_external = "<i class='fa fa-external-link'></i>"
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local tags = {ifid=getSystemInterfaceId()}
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print("<table class=\"table table-bordered table-striped\">\n")
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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><img class=\"redis-info-load\" border=0 src=".. ntop.getHttpPrefix() .. "/img/throbber.gif style=\"vertical-align:text-top;\" id=throbber><span id=\"redis-health\"></span></td></tr>\n")
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-- No need to determine whether the chart exists for this as memory is always fetched straigth from redis
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local storage_chart_available = ts_creation and ts_utils.exists("redis:memory", tags)
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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>")
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print("<td class='text-center' width=5%>")
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print(ternary(storage_chart_available, "<A HREF='"..url.."&page=historical&ts_schema=redis:memory'><i class='fa fa-lg fa-chart-area'></i></A>", ""))
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print("</td><td><img class=\"redis-info-load\" border=0 src=".. ntop.getHttpPrefix() .. "/img/throbber.gif style=\"vertical-align:text-top;\" id=throbber><span id=\"redis-info-memory\"></span></td></tr>\n")
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local keys_chart_available = ts_creation and ts_utils.exists("redis:keys", tags)
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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>")
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print("<td class='text-center' width=5%>")
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print(ternary(keys_chart_available, "<A HREF='"..url.."&page=historical&ts_schema=redis:keys'><i class='fa fa-chart-area fa-lg'></i></A>", ""))
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print("</td><td><img class=\"redis-info-load\" border=0 src=".. ntop.getHttpPrefix() .. "/img/throbber.gif style=\"vertical-align:text-top;\" id=throbber><span id=\"redis-info-keys\"></span></td></tr>\n")
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print[[<script>
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var last_keys, last_memory
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var health_descr = {
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]]
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print('"green" : {"status" : "<span class=\'badge badge-success\'>'..i18n("system_stats.redis.redis_health_green")..'</span>", "descr" : "<small>'..i18n("system_stats.redis.redis_health_green_descr")..'</small>"},')
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print('"red" : {"status" : "<span class=\'badge badge-danger\'>'..i18n("system_stats.redis.redis_health_red")..'</span>", "descr" : "<small>'..i18n("system_stats.redis.redis_health_red_descr", {product = ntop.getInfo()["product"]})..'</small>"},')
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print[[
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};
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function refreshRedisStats() {
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$.get("]] print(plugins_utils.getUrl("get_redis_info.lua")) print[[", function(info) {
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$(".redis-info-load").hide();
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if(typeof info.health !== "undefined" && health_descr[info.health]) {
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$("#redis-health").html(health_descr[info.health]["status"] + "<br>" + health_descr[info.health]["descr"]);
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}
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if(typeof info.dbsize !== "undefined") {
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$("#redis-info-keys").html(formatValue(info.dbsize) + " ");
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if(typeof last_keys !== "undefined")
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$("#redis-info-keys").append(drawTrend(info.dbsize, last_keys));
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last_keys = info.dbsize;
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}
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if(typeof info.memory !== "undefined") {
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$("#redis-info-memory").html(bytesToVolume(info.memory) + " ");
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if(typeof last_memory !== "undefined")
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$("#redis-info-memory").append(drawTrend(info.memory, last_memory));
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last_memory = info.memory;
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}
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}).fail(function() {
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$(".redis-info-load").hide();
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});
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}
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setInterval(refreshRedisStats, 5000);
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refreshRedisStats();
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</script>
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]]
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print("</table>\n")
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elseif(page == "stats") then
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print [[
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<div id="table-redis-stats"></div>
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<script type='text/javascript'>
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$("#table-redis-stats").datatable({
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title: "",
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perPage: 100,
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hidePerPage: true,
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url: "]] print(plugins_utils.getUrl("get_redis_stats.lua")) print(ntop.getHttpPrefix()) print[[",
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columns: [
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{
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field: "column_key",
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hidden: true,
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css: {
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width: '15%',
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}
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}, {
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field: "column_command",
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sortable: true,
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title: "]] print(i18n("please_wait_page.command")) print[[",
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css: {
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width: '15%',
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}
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}, {
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title: "]] print(i18n("chart")) print[[",
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field: "column_chart",
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hidden: ]] if not ts_creation then print("true") else print("false") end print[[,
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sortable: false,
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css: {
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textAlign: 'center',
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width: '5%',
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}
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}, {
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title: "]] print(i18n("system_stats.redis.tot_calls")) print[[",
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field: "column_hits",
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sortable: true,
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css: {
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textAlign: 'right'
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}
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}
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], tableCallback: function() {
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datatableInitRefreshRows($("#table-redis-stats"), "column_key", 5000, {"column_hits": addCommas});
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}
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});
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</script>
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]]
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elseif(page == "historical" and ts_creation) then
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local schema = _GET["ts_schema"] or "redis:memory"
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local selected_epoch = _GET["epoch"] or ""
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local tags = {ifid = getSystemInterfaceId(), command = _GET["redis_command"]}
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url = url.."&page=historical"
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local timeseries = {
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{schema = "redis:memory", label = i18n("about.ram_memory")},
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{schema = "redis:keys", label = i18n("system_stats.redis.redis_keys")},
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{separator=1, label=i18n("system_stats.redis.commands")},
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}
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-- Populate individual commands timeseries
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local series = ts_utils.listSeries("redis:hits", {ifid = getSystemInterfaceId()}, 0)
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if(series) then
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for _, serie in pairsByField(series, "command", asc) do
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timeseries[#timeseries + 1] = {
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schema = "redis:hits",
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label = i18n("system_stats.redis.command_hits", {cmd = string.upper(string.sub(serie.command, 5))}),
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extra_params = {redis_command = serie.command},
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metrics_labels = {i18n("graphs.num_calls")},
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}
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end
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end
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drawGraphs(getSystemInterfaceId(), schema, tags, _GET["zoom"], url, selected_epoch, {
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top_redis_hits = "top:redis:hits",
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timeseries = timeseries,
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})
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elseif((page == "alerts") and isAdministrator()) then
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local old_ifname = ifname
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interface.select(getSystemInterfaceId())
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_GET["ifid"] = getSystemInterfaceId()
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-- _GET["entity"] = alert_consts.alertEntity("redis")
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drawAlerts()
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interface.select(old_ifname)
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end
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-- #######################################################
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dofile(dirs.installdir .. "/scripts/lua/inc/footer.lua")
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