feat: support Knative Serving 1.5 Custom Health Checks (#9719)

* fix: Update account.proto annotaion for gen grpc gateway

Signed-off-by: wei840222 <wei840222@gmail.com>

* fix: Changes from codegen

Signed-off-by: wei840222 <wei840222@gmail.com>

* Retrigger CI pipeline

Signed-off-by: wei.wan <wei.wan@linecorp.com>

* Retrigger CI pipeline

Signed-off-by: wei.wan <wei.wan@linecorp.com>

* fix: Changes from codegen

Signed-off-by: wei <wei840222@gmail.com>

* Retrigger CI pipeline

Signed-off-by: wei.wan <wei.wan@linecorp.com>

* Retrigger CI pipeline

Signed-off-by: wei <wei840222@gmail.com>

* feat: support Knative Serving 1.5 Custom Health Checks

Signed-off-by: wei.wan <wei.wan@linecorp.com>

* fix: fix test fail

Signed-off-by: wei.wan <wei.wan@linecorp.com>

* feat: support Knative Serving 1.5 Custom Health Checks

Signed-off-by: wei840222 <wei840222@gmail.com>

Signed-off-by: wei840222 <wei840222@gmail.com>
Signed-off-by: wei.wan <wei.wan@linecorp.com>
Signed-off-by: wei <wei840222@gmail.com>
Co-authored-by: wei.wan <wei.wan@linecorp.com>

resource_customizations/serving.knative.dev/Service/health.lua

@@ -0,0 +1,40 @@
+health_status = {}
+health_status.status = "Progressing"
+health_status.message = "Waiting for status update."
+if obj.status ~= nil and obj.status.conditions ~= nil then
+  status_true = 0
+  status_false = 0
+  status_unknown = 0
+  health_status.message = ""
+  for i, condition in pairs(obj.status.conditions) do
+    if condition.status == "True" and (condition.type == "ConfigurationsReady" or condition.type == "RoutesReady" or condition.type == "Ready") then
+      status_true = status_true + 1
+    elseif condition.status == "False" or condition.status == "Unknown" then
+      msg = condition.type .. " is " .. condition.status
+      if condition.reason ~= nil and condition.reason ~= "" then
+        msg = msg .. ", since " .. condition.reason .. "."
+      end
+      if condition.message ~= nil and condition.message ~= "" then
+        msg = msg .. " " .. condition.message
+      end
+      health_status.message = health_status.message .. msg .. "\n"
+      if condition.status == "False" then
+        status_false = status_false + 1
+      else
+        status_unknown = status_unknown + 1
+      end
+    end
+  end
+  if status_true == 3 and status_false == 0 and status_unknown == 0 then
+    health_status.message = "Knative Service is healthy."
+    health_status.status = "Healthy"
+    return health_status
+  elseif status_false > 0 then
+    health_status.status = "Degraded"
+    return health_status
+  else
+    health_status.status = "Progressing"
+    return health_status
+  end
+end
+return health_status

resource_customizations/serving.knative.dev/Service/health_test.yaml

@@ -0,0 +1,13 @@
+tests:
+- healthStatus:
+    status: Progressing
+    message: "Ready is Unknown, since RolloutInProgress. A gradual rollout of the latest revision(s) is in progress.\nRoutesReady is Unknown, since RolloutInProgress. A gradual rollout of the latest revision(s) is in progress.\n"
+  inputPath: testdata/progressing.yaml
+- healthStatus:
+    status: Degraded
+    message: "ConfigurationsReady is False, since RevisionFailed. Revision \"helloworld-00002\" failed with message: Container failed with: container exited with no error.\nReady is False, since RevisionFailed. Revision \"helloworld-00002\" failed with message: Container failed with: container exited with no error.\n"
+  inputPath: testdata/degraded.yaml
+- healthStatus:
+    status: Healthy
+    message: Knative Service is healthy.
+  inputPath: testdata/healthy.yaml

resource_customizations/serving.knative.dev/Service/testdata/degraded.yaml

@@ -0,0 +1,21 @@
+apiVersion: serving.knative.dev/v1
+kind: Service
+metadata:
+  name: helloworld
+  namespace: default
+spec: {}
+status:
+  conditions:                                                                                                                                                                                                                               
+  - lastTransitionTime: "2022-06-14T03:45:38Z"
+    message: 'Revision "helloworld-00002" failed with message: Container failed with: container exited with no error.'
+    reason: RevisionFailed
+    status: "False"
+    type: ConfigurationsReady
+  - lastTransitionTime: "2022-06-14T03:45:38Z"
+    message: 'Revision "helloworld-00002" failed with message: Container failed with: container exited with no error.'
+    reason: RevisionFailed
+    status: "False"
+    type: Ready
+  - lastTransitionTime: "2022-06-16T09:35:11Z"
+    status: "True"
+    type: RoutesReady

resource_customizations/serving.knative.dev/Service/testdata/healthy.yaml

@@ -0,0 +1,17 @@
+apiVersion: serving.knative.dev/v1
+kind: Service
+metadata:
+  name: helloworld
+  namespace: default
+spec: {}
+status:
+  conditions:
+  - lastTransitionTime: "2022-06-20T03:52:41Z"
+    status: "True"
+    type: ConfigurationsReady
+  - lastTransitionTime: "2022-06-20T03:52:41Z"
+    status: "True"
+    type: Ready
+  - lastTransitionTime: "2022-06-20T03:52:41Z"
+    status: "True"
+    type: RoutesReady

resource_customizations/serving.knative.dev/Service/testdata/progressing.yaml

@@ -0,0 +1,21 @@
+apiVersion: serving.knative.dev/v1
+kind: Service
+metadata:
+  name: helloworld
+  namespace: default
+spec: {}
+status:
+  conditions:
+  - lastTransitionTime: "2022-06-20T04:14:22Z"
+    status: "True"
+    type: ConfigurationsReady
+  - lastTransitionTime: "2022-06-20T04:14:22Z"
+    message: A gradual rollout of the latest revision(s) is in progress.
+    reason: RolloutInProgress
+    status: Unknown
+    type: Ready
+  - lastTransitionTime: "2022-06-20T04:14:22Z"
+    message: A gradual rollout of the latest revision(s) is in progress.
+    reason: RolloutInProgress
+    status: Unknown
+    type: RoutesReady