PM2 Dashboard monitoring

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For those of you using pm2 to launch and monitor your instances, this flow lets you monitor from within Node-Red

Flow

[{"id":"bfa40032e7b236f5","type":"group","z":"d63da7d39b03706f","name":"Node-Red","style":{"fill":"#7fb7df","label":true,"color":"#000000"},"nodes":["5c732e4feb3baed0","a08d268203b4a005","96c575b95962a468","a30fcfc64ebdd450","18220c4ca4e6f003"],"x":34,"y":739,"w":792,"h":122},{"id":"5c732e4feb3baed0","type":"exec","z":"d63da7d39b03706f","g":"bfa40032e7b236f5","command":"/usr/local/bin/pm2 jlist","addpay":"","append":"","useSpawn":"false","timer":"","winHide":false,"oldrc":false,"name":"Node Info","x":200,"y":800,"wires":[["a30fcfc64ebdd450"],[],[]]},{"id":"a08d268203b4a005","type":"inject","z":"d63da7d39b03706f","g":"bfa40032e7b236f5","name":"","props":[{"p":"topic","vt":"str"}],"repeat":"300","crontab":"","once":false,"onceDelay":0.1,"topic":"OS Info","x":95,"y":800,"wires":[["5c732e4feb3baed0"]],"l":false},{"id":"96c575b95962a468","type":"function","z":"d63da7d39b03706f","g":"bfa40032e7b236f5","name":"Map","func":"const dashboards=msg.payload\nlet props = [];\nconst numberPattern = /\\d{4}/g\n\ndashboards.forEach(dashboard => {\n    const d1 = new Date(dashboard.pm2_env.pm_uptime)\n    const d2 = new Date();\n    const diff = Math.abs(d2.getTime() - d1.getTime())\n    const updays = Math.floor(diff / (1000 * 60 * 60 * 24))\n    const name = dashboard.name.toUpperCase()\n    const path = dashboard.pm2_env.pm_out_log_path\n    const port =path.match(numberPattern)[0]\n    const mem = (dashboard.monit.memory/ (1024 * 1024)).toFixed(1) + \" MB\"\n    const status = dashboard.pm2_env.status=='online' ?'lawngreen':'orange'\n    let arr = { \n        \"PMID\": dashboard.pm_id ,\n        \"NAME\": name,\n        \"PORT\": port,\n        //\"PID\": dashboard.pid,\n        \"UPTIME\": updays+'D',\n        \"STATUS\": status,\n        \"CPU\": dashboard.monit.cpu +'%',\n        \"MEMORY\": mem,\n        };\n    props.push(arr);\n})\n\nmsg.payload=props\nreturn msg;","outputs":1,"timeout":0,"noerr":0,"initialize":"","finalize":"","libs":[],"x":570,"y":820,"wires":[["18220c4ca4e6f003"]]},{"id":"a30fcfc64ebdd450","type":"json","z":"d63da7d39b03706f","g":"bfa40032e7b236f5","name":"","property":"payload","action":"","pretty":false,"x":390,"y":780,"wires":[["96c575b95962a468"]]},{"id":"18220c4ca4e6f003","type":"ui-table","z":"d63da7d39b03706f","g":"bfa40032e7b236f5","group":"1c54b30d7d8e7c7b","name":"Node-RED","label":"DASHBOARD INSTANCES","order":3,"width":0,"height":0,"maxrows":0,"passthru":false,"autocols":false,"showSearch":false,"selectionType":"none","columns":[{"title":"PM ID","key":"PMID","keyType":"key","type":"text","width":"","align":"start"},{"title":"NAME","key":"NAME","keyType":"key","type":"text","width":"","align":"start"},{"title":"PORT","key":"PORT","keyType":"key","type":"text","width":"","align":"start"},{"title":"UPTIME","key":"UPTIME","keyType":"key","type":"text","width":"","align":"start"},{"title":"STATUS","key":"STATUS","keyType":"key","type":"color","width":"","align":"start"},{"title":"CPU","key":"CPU","keyType":"key","type":"progress","width":"","align":"start"},{"title":"MEMORY","key":"MEMORY","keyType":"key","type":"text","width":"","align":"start"}],"mobileBreakpoint":"sm","mobileBreakpointType":"defaults","action":"replace","x":730,"y":780,"wires":[[]]},{"id":"1c54b30d7d8e7c7b","type":"ui-group","name":"Dashboard","page":"40b1bea1d5488e9d","width":"12","height":1,"order":4,"showTitle":false,"className":"","visible":"true","disabled":"false","groupType":"default"},{"id":"40b1bea1d5488e9d","type":"ui-page","name":"System Status","ui":"4740393b964cb7af","path":"/system","icon":"mdi-cog","layout":"tabs","theme":"11edfaf96d0baec1","breakpoints":[{"name":"Default","px":"0","cols":"3"},{"name":"Tablet","px":"576","cols":"6"},{"name":"Small Desktop","px":"768","cols":"9"},{"name":"Desktop","px":"1024","cols":"12"}],"order":16,"className":"","visible":"true","disabled":"false"},{"id":"4740393b964cb7af","type":"ui-base","name":"Tiger","path":"/dashboard","appIcon":"","includeClientData":true,"acceptsClientConfig":["ui-notification","ui-control","ui-dropdown","ui-chart","ui-gauge","ui-button","ui-template","ui-text","ui-table","ui-form"],"showPathInSidebar":false,"headerContent":"page","navigationStyle":"fixed","titleBarStyle":"hidden","showReconnectNotification":true,"notificationDisplayTime":"1","showDisconnectNotification":true},{"id":"11edfaf96d0baec1","type":"ui-theme","name":"Dark1","colors":{"surface":"#424242","primary":"#0094ce","bgPage":"#424242","groupBg":"#424242","groupOutline":"#424242"},"sizes":{"density":"default","pagePadding":"2px","groupGap":"6px","groupBorderRadius":"4px","widgetGap":"10px"}}]

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4 Likes
2

Very Nice.
I use NSSM to run Node-red as a windows service. Any possibility of similar application possible. if you could direct me to the right path, i will try to pursue.

EDIT: sc query state= all seems to give me some info, will follow from there.

3

Don't know much about nssm but possibly powershell will give you what you want
Add whatever columns are available to the select part. then modify the map function to suit

I'm pretty sure you can install pm2 on windows as well

Get-WmiObject win32_service | ?{$_.PathName -like '*nssm*'} | select Name, DisplayName, State, PathName | ConvertTo-Json

or as you mentioned sc although I think the sc output will just be one entry in json and very hard to parse

sc.exe query type= service| ConvertTo-Json
4

I run PM2 on Windows - but if already using nssm, it is rather redundant.

Brave's Leo AI gave me this for more detail (not tried it):

$Details = @()
$AllRunningServices = Get-CimInstance -class win32_service | Where-Object {$_.State -eq 'Running'} | Select-Object ProcessId, Name

foreach($procid in $AllRunningServices) {
    $Details += Get-Process | Where-Object {$_.Id -eq $procid.ProcessId} | Select-Object ProcessName, Id, CPU, @{Name = "serviceName"; Expression={$procid.Name}}
}

$Details | Sort-Object -Property CPU -Descending | ft

Get-process gives you lots of detail about your running services.

1 Like
5

Does this mean I have to switch to PM2?
I am happy with NSSM and till today have no issues running 5 different instances of NR as windows services.

6

No, NSSM is perfectly fine. Julian was stating installing and setting up PM2 is redundant as you have a working solution.

2 Likes
7

Not at all, you can get everything shown in the PM2 example using PowerShell and more besides. If nssm is working for you, it is fine. I really meant that PM2 is redundant for you, not nssm. :blush:

I use PM2 for convenience as I don't always have Node-RED running on my Windows desktop. My "live" version is on a separate server. Though recently, I have changed things so that Node-RED (via PM2) runs anyway after I log into my user account.

1 Like
8

Hmmm. Need to improve my English comprehension.

1 Like
9

:blush: No worries at all. It is good for us English speakers to be reminded that not everyone has our language as their first.