Provide Healthcheck API MVP0.8.0

Implements basic functionality of running starting Healthcheck.
Results can be inspected so-far without dedicated API, by using, for
example, Query API.

Issue-ID: MULTICLOUD-1233
Signed-off-by: Konrad Bańka <k.banka@samsung.com>
Change-Id: Ia4d96d936d573173d7d8f41e6c39d059bf5f8b1f

1 files changed, 68 insertions, 0 deletions

diff --git a/src/k8splugin/api/instancehchandler.go b/src/k8splugin/api/instancehchandler.go
new file mode 100644
index 00000000..fc1c3be4
--- /dev/null
+++ b/src/k8splugin/api/instancehchandler.go
@@ -0,0 +1,68 @@
+/*
+Copyright © 2021 Samsung Electronics
+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 api
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/onap/multicloud-k8s/src/k8splugin/internal/healthcheck"
+	log "github.com/onap/multicloud-k8s/src/k8splugin/internal/logutils"
+
+	"github.com/gorilla/mux"
+)
+
+// Used to store the backend implementation objects
+// Also simplifies the mocking needed for unit testing
+type instanceHCHandler struct {
+	// Interface that implements Healthcheck operations
+	client healthcheck.InstanceHCManager
+}
+
+func (ih instanceHCHandler) createHandler(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	id := vars["instID"]
+
+	resp, err := ih.client.Create(id)
+	if err != nil {
+		log.Error("Error scheduling healhtcheck", log.Fields{
+			"error":    err,
+			"instance": id,
+			"response": resp,
+		})
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	err = json.NewEncoder(w).Encode(resp)
+	if err != nil {
+		log.Error("Error Marshaling Reponse", log.Fields{
+			"error":    err,
+			"response": resp,
+		})
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
+func (ih instanceHCHandler) getHandler(w http.ResponseWriter, r *http.Request) {
+}
+
+func (ih instanceHCHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
+}
+
+func (ih instanceHCHandler) listHandler(w http.ResponseWriter, r *http.Request) {
+}