Adds chart skupper-monitoring (#2346)

* Adds chart skupper-monitoring

Wraps kube-prometheus-stack helm chart and includes skupper control
plane specific scrape configurations and dashboard.

Signed-off-by: Christian Kruse <[email protected]>

* review fix for chart readme

Signed-off-by: Christian Kruse <[email protected]>

---------

Signed-off-by: Christian Kruse <[email protected]>

Author: c-kruse

charts/skupper-monitoring/.gitignore

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+charts

charts/skupper-monitoring/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/skupper-monitoring/Chart.lock

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+dependencies:
+- name: kube-prometheus-stack
+  repository: https://prometheus-community.github.io/helm-charts
+  version: 70.1.1
+digest: sha256:fdba3182672be378c17edcefcc2c19e3f48a471f80b66714d30c1f5defd2b815
+generated: "2025-09-24T13:35:11.028694921-07:00"

charts/skupper-monitoring/Chart.yaml

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+apiVersion: v2
+name: skupper-monitoring
+description: Helm chart for deploying a kube-prometheus-stack for Skupper
+
+type: application
+version: 0.1.0
+dependencies:
+- name: kube-prometheus-stack
+  version: "70.1.1"
+  repository: "https://prometheus-community.github.io/helm-charts"

charts/skupper-monitoring/README.md

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+# Skupper Monitoring Stack
+
+Installs a preconfigured
+[kube-prometheus-stack](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack)
+instance with Skupper specific scrape configuration and Grafana dashboard.
+Intended to serve as a reference for operators monitoring Skupper running in
+Kubernetes and as a tool for developers working on Skupper in Kubernetes to
+consistently evaluate trends in component behavior.
+
+**Not intended for release**
+
+## Usage
+
+To deploy the Skupper Monitoring Stack to a namespace using Helm, printing the
+useful kube-prometheus-stack subchart notes which can be useful.
+
+```
+helm install --render-subchart-notes skupper-monitoring .
+```