OCPBUGS-33620: define *probes for KSM

Signed-off-by: Pranshu Srivastava <[email protected]>

Author: rexagod

assets/kube-state-metrics/deployment.yaml

@@ -57,7 +57,24 @@ spec:
           ^kube_pod_completion_time$,
           ^kube_pod_status_scheduled$
         image: registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.12.0
+        livenessProbe:
+          exec:
+            command:
+            - sh
+            - -c
+            - if [ -x "$(command -v curl)" ]; then exec curl -s -I -f http://localhost:8081/healthz; elif [ -x "$(command -v wget)" ]; then exec wget --quiet --tries=1 --spider http://localhost:8081/healthz; else exit 1; fi
         name: kube-state-metrics
+        ports:
+        - containerPort: 8081
+          name: metrics
+        - containerPort: 8082
+          name: self
+        readinessProbe:
+          exec:
+            command:
+            - sh
+            - -c
+            - if [ -x "$(command -v curl)" ]; then exec curl -s -I -f http://localhost:8082/; elif [ -x "$(command -v wget)" ]; then exec wget --quiet --tries=1 --spider http://localhost:8082/; else exit 1; fi
         resources:
           requests:
             cpu: 2m

jsonnet/components/kube-state-metrics.libsonnet

@@ -266,6 +266,38 @@ function(params)
                           readOnly: true,
                         },
                       ],
+                      local metricsPort = 8081,
+                      local selfPort = 8082,
+                      ports::: [
+                        {
+                          containerPort: metricsPort,
+                          name: 'metrics',
+                        },
+                        {
+                          containerPort: selfPort,
+                          name: 'self',
+                        },
+                      ],
+                      local livenessProbePath = 'healthz',
+                      local readinessProbePath = '',
+                      livenessProbe::: {
+                        exec: {
+                          command: [
+                            'sh',
+                            '-c',
+                            'if [ -x "$(command -v curl)" ]; then exec curl -s -I -f http://localhost:%s/%s; elif [ -x "$(command -v wget)" ]; then exec wget --quiet --tries=1 --spider http://localhost:%s/%s; else exit 1; fi' % [metricsPort, livenessProbePath, metricsPort, livenessProbePath],
+                          ],
+                        },
+                      },
+                      readinessProbe::: {
+                        exec: {
+                          command: [
+                            'sh',
+                            '-c',
+                            'if [ -x "$(command -v curl)" ]; then exec curl -s -I -f http://localhost:%s/%s; elif [ -x "$(command -v wget)" ]; then exec wget --quiet --tries=1 --spider http://localhost:%s/%s; else exit 1; fi' % [selfPort, readinessProbePath, selfPort, readinessProbePath],
+                          ],
+                        },
+                      },
                     },
                 super.containers,
               ),