feat(skaffold): Add Skaffold (#150)

* feat(skaffold): Add Skaffold configuration

Also introduce the CONTRIBUTING.md file, which provides instruction about running it.

* Update CONTRIBUTING.md

Co-authored-by: Jesper Svendsen <99078145+jesper7@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Jesper Svendsen <99078145+jesper7@users.noreply.github.com>

* Apply review

---------

Co-authored-by: Marcin Jasion <mjasion@users.noreply.github.com>
Co-authored-by: Jesper Svendsen <99078145+jesper7@users.noreply.github.com>

.gitignore

@@ -1,3 +1,4 @@
 *.tgz
 override.yaml
 .idea
+/charts/studio/local-values.yaml

CONTRIBUTING.md

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+## Development environment
+
+Get the latest development version. Fork and clone the repo:
+
+```cli
+$ git clone git@github.com:<your-username>/helm-charts.git
+```
+Install [Helm](https://helm.sh/docs/intro/install/) and [Skaffold](https://skaffold.dev/docs/install/).
+
+Install a local Kubernetes cluster:
+- [Docker Desktop](https://docs.docker.com/desktop/kubernetes/) - recommended
+- [Kind](https://kind.sigs.k8s.io/docs/user/configuration/) - it needs additional configuration 
+   to expose ingress 👇
+- K3d - not supported yet
+
+
+### Kind cluster
+Kind does not expose ports by default. To enable this, you need to create the cluster with
+the following command:
+
+```cli
+$ kind create cluster --config kind-config.yaml
+```
+
+That's it. You should be ready to make changes, run tests, and make commits! 🎉
+
+## Running skaffold
+Run skaffold in the root of the repo:
+
+```cli
+$ skaffold dev
+```
+Wait for the deployment to finish. You can check the status of the deployment in console.
+When it is ready, open the browser and go to http://localhost. You should see the Studio page.
+
+> [!NOTE]
+> Skaffold contains a configuration to install `ingress-nginx` for kind and
+> docker-desktop. The profile will be used automatically when you run skaffold with the `dev` profile
+> and the name of the current `kubeContext` matches `kind-*` or `docker-desktop`.
+
+### Skaffold profile - `local`
+
+If you want to run skaffold with `local` profile, you need to create `local-values.yaml` file in
+`charts/studio/local-values.yaml`. The values should contain the overrides for the values of the
+chart. 
+
+To use the profile, run skaffold with following command:
+
+```cli
+$ skaffold dev -p local
+```

kind-config.yaml

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+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+  - role: control-plane
+    extraPortMappings:
+      - containerPort: 80
+        hostPort: 80
+        protocol: TCP
+      - containerPort: 443
+        hostPort: 443
+        protocol: TCP

skaffold.yaml

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+apiVersion: skaffold/v4beta6
+kind: Config
+deploy:
+  helm:
+    releases:
+      - name: studio
+        chartPath: charts/studio
+        skipBuildDependencies: false
+        wait: true
+        valuesFiles:
+          - charts/studio/values.yaml
+        recreatePods: false
+        upgradeOnChange: true
+  kubectl: {}
+
+profiles:
+  - name: local
+    patches:
+      - path: /deploy/helm/releases/0/valuesFiles/1
+        value: charts/studio/values-skaffold.yaml
+        op: add
+  - name: ingress-docker-desktop
+    activation:
+      - kubeContext: docker-desktop
+    manifests:
+      kustomize:
+        paths:
+          - skaffold/docker-desktop
+  - name: ingress-kind
+    activation:
+      - kubeContext: kind-(.*)
+    manifests:
+      kustomize:
+        paths:
+          - skaffold/kind

skaffold/base/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/kind/deploy.yaml
+
+patches:
+  - patch: |-
+      - op: remove
+        path: /spec/template/spec/nodeSelector/ingress-ready
+    target:
+      kind: Deployment

skaffold/docker-desktop/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../base/
+patches:
+  - patch: |-
+      - op: replace
+        path: /spec/type
+        value: LoadBalancer
+    target:
+      kind: Service
+      name: ingress-nginx-controller

skaffold/kind/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../base/