Skip to main content

dotnet monitor–Run as a sidecar in a Kubernetes cluster–Part 2

Last week I blogged about how you can run dotnet monitor as a sidecar in your Kubernetes cluster. Although the yaml file I shared worked on my local cluster (inside Minikube), it didn’t work when I tried to deploy it to AKS. Nothing happened when I tried to connect to the specified URL’s.

To fix this I had to take multiple steps:

  • First I had to explicitly set the ‘—urls’ argument inside the manifest:
  • Now I was able to connect to the url but it still failed. When I took a look at the logs I noticed the following message:

{"Timestamp":"2021-07-27T18:48:29.6522095Z","EventId":7,"LogLevel":"Information","Category":"Microsoft.Diagnostics.Tools.Monitor.ApiKeyAuthenticationHandler","Message":"MonitorApiKey was not authenticated. Failure message: API key authentication not configured.","State":{"Message":"MonitorApiKey was not authenticated. Failure message: API key authentication not configured.","AuthenticationScheme":"MonitorApiKey","FailureMessage":"API key authentication not configured.","{OriginalFormat}":"{AuthenticationScheme} was not authenticated. Failure message: {FailureMessage}"},"Scopes":[{"Message":"ConnectionId:0HMAH5RL3D6BM","ConnectionId":"0HMAH5RL3D6BM"},{"Message":"RequestPath:/processes RequestId:0HMAH5RL3D6BM:00000001, SpanId:|fe3ec0c2-46980a5b9b2602e2., TraceId:fe3ec0c2-46980a5b9b2602e2, ParentId:","RequestId":"0HMAH5RL3D6BM:00000001","RequestPath":"/processes","SpanId":"|fe3ec0c2-46980a5b9b2602e2.","TraceId":"fe3ec0c2-46980a5b9b2602e2","ParentId":""}]}

  • We need to create an API key secret and mount it as a volume to our sidecar. Here is the code to generate a secret:
kubectl create secret generic apikey \
  --from-literal=ApiAuthentication__ApiKeyHash=$hash \
  --from-literal=ApiAuthentication__ApiKeyHashType=SHA256 \
  --dry-run=client -o yaml \
  | kubectl apply -f -
  • Now we need to mount the secret as a volume. Here is the updated manifest:

If you want to learn more, I could recommend the following video as a good introduction:

Labels:

Popular posts from this blog

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B
Read more

Help! I accidently enabled HSTS–on localhost

I ran into an issue after accidently enabling HSTS for a website on localhost. This was not an issue for the original website that was running in IIS and had a certificate configured. But when I tried to run an Angular app a little bit later on http://localhost:4200 the browser redirected me immediately to https://localhost . Whoops! That was not what I wanted in this case. To fix it, you need to go the network settings of your browser, there are available at: chrome://net-internals/#hsts edge://net-internals/#hsts brave://net-internals/#hsts Enter ‘localhost’ in the domain textbox under the Delete domain security policies section and hit Delete . That should do the trick…
Read more

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.
Read more