Merge branch 'policy/create-readiness-health-check' into 'develop'

feat(policy): add readiness health check

See merge request teraflow-h2020/controller!109

src/policy/src/main/java/eu/teraflow/policy/SimpleLivenessCheck.java

@@ -27,6 +27,6 @@ public class SimpleLivenessCheck implements HealthCheck {
 
     @Override
     public HealthCheckResponse call() {
-        return HealthCheckResponse.up("Policy Service");
+        return HealthCheckResponse.up("Policy Service is live");
     }
 }

src/policy/src/main/java/eu/teraflow/policy/SimpleReadinessCheck.java

+/*
+* Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package eu.teraflow.policy;
+
+import javax.enterprise.context.ApplicationScoped;
+import org.eclipse.microprofile.health.HealthCheck;
+import org.eclipse.microprofile.health.HealthCheckResponse;
+import org.eclipse.microprofile.health.Readiness;
+
+@Readiness
+@ApplicationScoped
+public class SimpleReadinessCheck implements HealthCheck {
+
+    @Override
+    public HealthCheckResponse call() {
+        return HealthCheckResponse.up("Policy Service is ready");
+    }
+}