feat: Contour HTTPProxy health check support for issue # 22504 (#22596)

Signed-off-by: Greg Barasch <[email protected]>

Author: gregbarasch

resource_customizations/projectcontour.io/HTTPProxy/health.lua

@@ -0,0 +1,19 @@
+-- Status reporting information detailed here
+-- https://projectcontour.io/docs/main/config/fundamentals/#status-reporting
+hs = {
+  status = "Progressing",
+  message = "Waiting for status",
+}
+
+if obj.status ~= nil then
+  if obj.status.currentStatus ~= nil then
+    if obj.status.currentStatus == "valid" then
+      hs.status = "Healthy"
+    elseif obj.status.currentStatus == "invalid" then
+      hs.status = "Degraded"
+    end
+    hs.message = obj.status.description
+  end
+end
+
+return hs

resource_customizations/projectcontour.io/HTTPProxy/health_test.yaml

@@ -0,0 +1,17 @@
+tests:
+- healthStatus:
+    status: Healthy
+    message: "Valid HTTPProxy"
+  inputPath: testdata/healthy.yaml
+- healthStatus:
+    status: Progressing
+    message: 'Waiting for status'
+  inputPath: testdata/progressing.yaml
+- healthStatus:
+    status: Progressing
+    message: 'Waiting for controller'
+  inputPath: testdata/not_reconciled.yaml
+- healthStatus:
+    status: Degraded
+    message: 'At least one error present, see Errors for details'
+  inputPath: testdata/degraded.yaml

resource_customizations/projectcontour.io/HTTPProxy/testdata/degraded.yaml

@@ -0,0 +1,31 @@
+apiVersion: projectcontour.io/v1
+kind: HTTPProxy
+metadata:
+  name: basic
+spec:
+  virtualhost:
+    fqdn: foo-basic.bar.com
+  routes:
+    - conditions:
+        - prefix: /
+      services:
+        - name: s1
+          port: 80
+status:
+  conditions:
+  - errors:
+      - message: 'Spec.Routes unresolved service reference: service "default/s1" not found'
+        reason: ServiceUnresolvedReference
+        status: "True"
+        type: ServiceError
+    lastTransitionTime: "2025-04-07T10:00:00Z"
+    message: 'At least one error present, see Errors for details'
+    observedGeneration: 1
+    reason: ErrorPresent
+    status: "False"
+    type: Valid
+  currentStatus: invalid
+  description: 'At least one error present, see Errors for details'
+  loadBalancer:
+    ingress:
+    - hostname: abc-123.elb.us-east-1.amazonaws.com

resource_customizations/projectcontour.io/HTTPProxy/testdata/healthy.yaml

@@ -0,0 +1,26 @@
+apiVersion: projectcontour.io/v1
+kind: HTTPProxy
+metadata:
+  name: basic
+spec:
+  virtualhost:
+    fqdn: foo-basic.bar.com
+  routes:
+    - conditions:
+        - prefix: /
+      services:
+        - name: s1
+          port: 80
+status:
+  conditions:
+  - type: Valid
+    status: "True"
+    observedGeneration: 1
+    lastTransitionTime: "2025-04-07T10:00:00Z"
+    reason: Valid
+    message: Valid HTTPProxy
+  currentStatus: valid
+  description: Valid HTTPProxy
+  loadBalancer:
+    ingress:
+      - hostname: www.example.com

resource_customizations/projectcontour.io/HTTPProxy/testdata/not_reconciled.yaml

@@ -0,0 +1,16 @@
+apiVersion: projectcontour.io/v1
+kind: HTTPProxy
+metadata:
+  name: basic
+spec:
+  virtualhost:
+    fqdn: foo-basic.bar.com
+  routes:
+    - conditions:
+        - prefix: /
+      services:
+        - name: s1
+          port: 80
+status:
+  currentStatus: NotReconciled
+  description: Waiting for controller

resource_customizations/projectcontour.io/HTTPProxy/testdata/progressing.yaml

@@ -0,0 +1,13 @@
+apiVersion: projectcontour.io/v1
+kind: HTTPProxy
+metadata:
+  name: basic
+spec:
+  virtualhost:
+    fqdn: foo-basic.bar.com
+  routes:
+    - conditions:
+        - prefix: /
+      services:
+        - name: s1
+          port: 80