Add health probes to test-operator bundles

Enhance test-operator v1.0.0 and v1.2.0 bundles with HTTP-based health probes
to enable testing of startup, liveness, and readiness probe behavior. Replaces
the simple sleep container with a busybox httpd server that exposes probe
endpoints via a ConfigMap-mounted script.

The probes can be flipped from true to false by executing `rm /var/www{stared,ready,live}`
and back to true by performin `touch /var/www{stared,ready,live}`

Author: pedjak

testdata/images/bundles/test-operator/v1.0.0/manifests/script.configmap.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: httpd-script
+data:
+  httpd.sh: |
+    #!/bin/sh
+    echo true > /var/www/started
+    echo true > /var/www/ready
+    echo true > /var/www/live
+    exec httpd -f -h /var/www -p 80

testdata/images/bundles/test-operator/v1.0.0/manifests/testoperator.clusterserviceversion.yaml

@@ -56,15 +56,39 @@ spec:
                   app: olme2etest
               spec:
                 terminationGracePeriodSeconds: 0
+                volumes:
+                  - name: scripts
+                    configMap:
+                      name: httpd-script
+                      defaultMode: 0755
                 containers:
-                  - name: busybox
+                  - name: busybox-httpd-container
                     image: busybox:1.36
-                    command:
-                      - 'sleep'
-                      - '1000'
-                    securityContext:
-                      runAsUser: 1000
-                      runAsNonRoot: true
+                    command: ["/scripts/httpd.sh"]
+                    ports:
+                      - containerPort: 80
+                    volumeMounts:
+                      - name: scripts
+                        mountPath: /scripts
+                        readOnly: true
+                    startupProbe:
+                      httpGet:
+                        path: /started
+                        port: 80
+                      failureThreshold: 30
+                      periodSeconds: 10
+                    livenessProbe:
+                      httpGet:
+                        path: /live
+                        port: 80
+                      failureThreshold: 1
+                      periodSeconds: 2
+                    readinessProbe:
+                      httpGet:
+                        path: /ready
+                        port: 80
+                      initialDelaySeconds: 1
+                      periodSeconds: 1
                     serviceAccountName: simple-bundle-manager
       clusterPermissions:
         - rules:

testdata/images/bundles/test-operator/v1.2.0/manifests/script.configmap.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: httpd-script
+data:
+  httpd.sh: |
+    #!/bin/sh
+    echo "Version 1.2.0"
+    echo true > /var/www/started
+    echo true > /var/www/ready
+    echo true > /var/www/live
+    exec httpd -f -h /var/www -p 80

testdata/images/bundles/test-operator/v1.2.0/manifests/testoperator.clusterserviceversion.yaml

@@ -56,15 +56,39 @@ spec:
                   app: olme2etest
               spec:
                 terminationGracePeriodSeconds: 0
+                volumes:
+                  - name: scripts
+                    configMap:
+                      name: httpd-script
+                      defaultMode: 0755
                 containers:
-                  - name: busybox
+                  - name: busybox-httpd-container
                     image: busybox:1.37
-                    command:
-                      - 'sleep'
-                      - '1000'
-                    securityContext:
-                      runAsUser: 1000
-                      runAsNonRoot: true
+                    command: ["/scripts/httpd.sh"]
+                    ports:
+                      - containerPort: 80
+                    volumeMounts:
+                      - name: scripts
+                        mountPath: /scripts
+                        readOnly: true
+                    startupProbe:
+                      httpGet:
+                        path: /started
+                        port: 80
+                      failureThreshold: 30
+                      periodSeconds: 10
+                    livenessProbe:
+                      httpGet:
+                        path: /live
+                        port: 80
+                      failureThreshold: 1
+                      periodSeconds: 2
+                    readinessProbe:
+                      httpGet:
+                        path: /ready
+                        port: 80
+                      initialDelaySeconds: 1
+                      periodSeconds: 1
                     serviceAccountName: simple-bundle-manager
       clusterPermissions:
         - rules: