feat(argo-workflows): Support livenessProbe to server (#3175)

* feat(argo-workflows): Support readinessProbe to server

Signed-off-by: yu-croco <yu.croco@gmail.com>

* fix: readiness/liveness

Signed-off-by: yu-croco <yu.croco@gmail.com>

---------

Signed-off-by: yu-croco <yu.croco@gmail.com>
Co-authored-by: JM (Jason Meridth) <jmeridth@gmail.com>

charts/argo-workflows/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v3.6.4
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.45.7
+version: 0.45.8
 icon: https://argo-workflows.readthedocs.io/en/stable/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 sources:
@@ -16,5 +16,5 @@ annotations:
     fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
-    - kind: fixed
-      description: Update the SSO configuration instructions to reflect the correct field name
+    - kind: added
+      description: Support livenessProbe to server

charts/argo-workflows/README.md

@@ -310,6 +310,14 @@ Fields to note:
 | server.ingress.paths | list | `["/"]` | List of ingress paths |
 | server.ingress.tls | list | `[]` | Ingress TLS configuration |
 | server.lifecycle | object | `{}` | Specify postStart and preStop lifecycle hooks for server container |
+| server.livenessProbe.enabled | bool | `false` | Enable Kubernetes liveness probe for server |
+| server.livenessProbe.failureThreshold | int | `3` | Minimum consecutive failures for the [probe] to be considered failed after having succeeded |
+| server.livenessProbe.httpGet.path | string | `"/"` | Http path to use for the liveness probe |
+| server.livenessProbe.httpGet.port | int | `2746` | Http port to use for the liveness probe |
+| server.livenessProbe.initialDelaySeconds | int | `10` | Number of seconds after the container has started before [probe] is initiated |
+| server.livenessProbe.periodSeconds | int | `10` | How often (in seconds) to perform the [probe] |
+| server.livenessProbe.successThreshold | int | `1` | Minimum consecutive successes for the [probe] to be considered successful after having failed |
+| server.livenessProbe.timeoutSeconds | int | `1` | Number of seconds after which the [probe] times out |
 | server.loadBalancerClass | string | `""` | The class of the load balancer implementation |
 | server.loadBalancerIP | string | `""` | Static IP address to assign to loadBalancer service type `LoadBalancer` |
 | server.loadBalancerSourceRanges | list | `[]` | Source ranges to allow access to service from. Only applies to service type `LoadBalancer` |

charts/argo-workflows/ci/enable-server-liveness-probe-values.yaml

@@ -0,0 +1,6 @@
+crds:
+  keep: false
+
+server:
+  livenessProbe:
+    enabled: true

charts/argo-workflows/templates/server/server-deployment.yaml

@@ -87,6 +87,22 @@ spec:
               {{- end }}
             initialDelaySeconds: 10
             periodSeconds: 20
+          {{- if .Values.server.livenessProbe.enabled }}
+          livenessProbe:
+            httpGet:
+              path: {{ .Values.server.livenessProbe.httpGet.path }}
+              port: {{ .Values.server.livenessProbe.httpGet.port }}
+              {{- if .Values.server.secure }}
+              scheme: HTTPS
+              {{- else }}
+              scheme: HTTP
+              {{- end }}
+            initialDelaySeconds: {{ .Values.server.livenessProbe.initialDelaySeconds }}
+            timeoutSeconds: {{ .Values.server.livenessProbe.timeoutSeconds }}
+            periodSeconds: {{ .Values.server.livenessProbe.periodSeconds }}
+            successThreshold: {{ .Values.server.livenessProbe.successThreshold }}
+            failureThreshold: {{ .Values.server.livenessProbe.failureThreshold }}
+          {{- end }}
           env:
             - name: IN_CLUSTER
               value: "true"

charts/argo-workflows/values.yaml

@@ -776,6 +776,27 @@ server:
   # -- terminationGracePeriodSeconds for container lifecycle hook
   terminationGracePeriodSeconds: 30
 
+  ## livenessProbe for server
+  ## Ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/
+  livenessProbe:
+    # -- Enable Kubernetes liveness probe for server
+    enabled: false
+    httpGet:
+      # -- Http port to use for the liveness probe
+      port: 2746
+      # -- Http path to use for the liveness probe
+      path: /
+    # -- Minimum consecutive failures for the [probe] to be considered failed after having succeeded
+    failureThreshold: 3
+    # -- Number of seconds after the container has started before [probe] is initiated
+    initialDelaySeconds: 10
+    # -- How often (in seconds) to perform the [probe]
+    periodSeconds: 10
+    # -- Number of seconds after which the [probe] times out
+    timeoutSeconds: 1
+    # -- Minimum consecutive successes for the [probe] to be considered successful after having failed
+    successThreshold: 1
+
 # -- Array of extra K8s manifests to deploy
 extraObjects: []
   # - apiVersion: secrets-store.csi.x-k8s.io/v1