Promitor x Helm 3 Deployment

[msftkenneth]

Hi,

I would like to know whether there is any extra settings for the metric declaration file for spinning up the scraper agent.
And I used the following yaml file for the scraper, however I got the errors shown below.

Definition File

azureMetadata:
  tenantId: <<redacted>>
  subscriptionId: <<redacted>>
  resourceGroupName: sample-rg
azureAuthentication:
  appId: "<<redacted>>"
  appKey: "<<redacted>>"
metricSinks:
  prometheusScrapingEndpoint:
    enabled: true
    baseUriPath: /metrics
    enableMetricTimestamps: true
metricDefaults:
  aggregation:
    interval: 00:05:00
  scraping:
    # Every minute
    schedule: "0 * * ? * *"
metrics:
  - name: azure_queue_message_count
    description: "The number of pending queue messages."
    resourceType: StorageQueue
    scraping:
      # Every 2 minutes
      schedule: "0 */2 * ? * *"
    azureMetricConfiguration:
      metricName: MessageCount
      aggregation:
        type: Average
    resources:
      - accountName: samplesacct
        queueName: test
        sasToken:
          rawValue: "<<redacted>>"

Error Log

> kubectl logs promitor-agent-scraper-595b8987bf-652ng promitor-agent-scraper
██████╗ ██████╗  ██████╗ ███╗   ███╗██╗████████╗ ██████╗ ██████╗
██╔══██╗██╔══██╗██╔═══██╗████╗ ████║██║╚══██╔══╝██╔═══██╗██╔══██╗
██████╔╝██████╔╝██║   ██║██╔████╔██║██║   ██║   ██║   ██║██████╔╝
██╔═══╝ ██╔══██╗██║   ██║██║╚██╔╝██║██║   ██║   ██║   ██║██╔══██╗
██║     ██║  ██║╚██████╔╝██║ ╚═╝ ██║██║   ██║   ╚██████╔╝██║  ██║
╚═╝     ╚═╝  ╚═╝ ╚═════╝ ╚═╝     ╚═╝╚═╝   ╚═╝    ╚═════╝ ╚═╝  ╚═╝

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object.
   at Promitor.Scraper.Host.Startup..ctor(IConfiguration configuration) in /src/Promitor.Scraper.Host/Startup.cs:line 20
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ConstructorMatcher.CreateInstance(IServiceProvider provider)
   at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.CreateInstance(IServiceProvider provider, Type instanceType, Object[] parameters)
   at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.GetServiceOrCreateInstance(IServiceProvider provider, Type type)
   at Microsoft.AspNetCore.Hosting.Internal.StartupLoader.LoadMethods(IServiceProvider hostingServiceProvider, Type startupType, String environmentName)
   at Microsoft.AspNetCore.Hosting.WebHostBuilderExtensions.<>c__DisplayClass1_0.<UseStartup>b__1(IServiceProvider sp)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(IServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitSingleton(SingletonCallSite singletonCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2.VisitCallSite(IServiceCallSite callSite, TArgument argument)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.EnsureStartup()
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.EnsureApplicationServices()
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.Initialize()
   at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
   at Promitor.Scraper.Host.Program.BuildWebHost(String[] args) in /src/Promitor.Scraper.Host/Program.cs:line 31
   at Promitor.Scraper.Host.Program.Main(String[] args) in /src/Promitor.Scraper.Host/Program.cs:line 16

Thanks,
Kenneth

[tomkerkhove]

I'll take a look at it but feel free to share your Deployment & ConfigMap in Kubernetes in meantime which would help with troubleshooting. Thanks!

[msftkenneth]

I think I resolved it after you gave me hint about the chart source..
I found another chart repo - https://promitor.azurecr.io/helm/v1/repo
Thanks yay!

[tomkerkhove]

The problem is more that 1.6 had an issue which is patched in 2.0, but it's currently a preview version.

Can you use this (with your config), please, and let me know if it works?

helm install my-promitor-agent-scraper promitor/promitor-agent-scraper --version 2.0.0-rc

[tomkerkhove]

See #1301 for the 1.0.0 image issue

[msftkenneth]

The problem is more that 1.6 had an issue which is patched in 2.0, but it's currently a preview version.

Can you use this (with your config), please, and let me know if it works?

helm install my-promitor-agent-scraper promitor/promitor-agent-scraper --version 2.0.0-rc

Yes, it works after specifying the latest version 👍

[tomkerkhove]

Sorry about that and feel free to mark it as resolved!

[mossad-zika]

guys please put it somewhere on the main readme or doc, it was to hard to find the answer here

btw thx for a great work

[tomkerkhove]

I've released a new version for this - https://github.com/tomkerkhove/promitor/releases/tag/helm-1.6.1.