feat: Add Tilt setup for kubeflow-notebook backend

workspaces/backend/Tiltfile

@@ -0,0 +1,23 @@
+load("ext://restart_process", "docker_build_with_restart")
+
+local_resource(
+    "backend-bin",
+    "CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o ../bin/backend cmd/main.go",
+    deps=["cmd", "internal", "go.mod", "go.sum"],
+)
+
+
+docker_build_with_restart(
+    "backend",
+    context="..",  # this is where dev.Dockerfile lives
+    dockerfile="devenv/dev.Dockerfile",
+    entrypoint=["/backend"],
+    only=["bin/backend"],
+    live_update=[
+        sync("../bin/backend", "/backend"),
+    ],
+)
+
+k8s_yaml("devenv/backend.yaml")
+
+k8s_resource("backend", port_forwards=4000)

workspaces/backend/devenv/backend.yaml

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+# Deployment
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: backend
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: backend
+  template:
+    metadata:
+      labels:
+        app: backend
+    spec:
+      serviceAccountName: backend-svc  # custom service account
+      containers:
+      - name: backend
+        image: backend
+        ports:
+        - containerPort: 4000
+
+---
+# Service
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend
+spec:
+  selector:
+    app: backend
+  ports:
+  - protocol: TCP
+    port: 80
+    targetPort: 4000
+
+---
+# ServiceAccount
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: backend-svc
+  namespace: default
+
+---
+# ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: backend-role
+rules:
+  - apiGroups: [""]
+    resources: ["namespaces"]
+    verbs: ["get", "list", "watch", "create", "update", "delete"]
+  - apiGroups: ["kubeflow.org"]
+    resources: ["workspacekinds"]
+    verbs: ["get", "list", "watch","create","update","delete"] # ["get", "list", "watch", "create", "update", "delete"]
+  - apiGroups: ["kubeflow.org"]  
+    resources: ["workspaces"]
+    verbs: ["get", "list", "watch", "create", "update", "delete"]
+
+---
+# ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: backend-rolebinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: backend-role
+subjects:
+  - kind: ServiceAccount
+    name: backend-svc
+    namespace: default

workspaces/backend/devenv/dev.Dockerfile

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+FROM alpine:3.18
+
+WORKDIR /app
+
+COPY bin/backend /backend
+
+ENTRYPOINT ["/backend"]