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-rw-r--r--src/ncm/api/clusterhandler.go468
1 files changed, 468 insertions, 0 deletions
diff --git a/src/ncm/api/clusterhandler.go b/src/ncm/api/clusterhandler.go
new file mode 100644
index 00000000..cb147a8a
--- /dev/null
+++ b/src/ncm/api/clusterhandler.go
@@ -0,0 +1,468 @@
+/*
+ * Copyright 2020 Intel Corporation, Inc
+ *
+ * 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 (
+ "bytes"
+ "encoding/base64"
+ "encoding/json"
+ "io"
+ "io/ioutil"
+ "mime"
+ "mime/multipart"
+ "net/http"
+ "net/textproto"
+
+ moduleLib "github.com/onap/multicloud-k8s/src/ncm/pkg/module"
+
+ "github.com/gorilla/mux"
+)
+
+// Used to store backend implementations objects
+// Also simplifies mocking for unit testing purposes
+type clusterHandler struct {
+ // Interface that implements Cluster operations
+ // We will set this variable with a mock interface for testing
+ client moduleLib.ClusterManager
+}
+
+// Create handles creation of the ClusterProvider entry in the database
+func (h clusterHandler) createClusterProviderHandler(w http.ResponseWriter, r *http.Request) {
+ var p moduleLib.ClusterProvider
+
+ err := json.NewDecoder(r.Body).Decode(&p)
+
+ switch {
+ case err == io.EOF:
+ http.Error(w, "Empty body", http.StatusBadRequest)
+ return
+ case err != nil:
+ http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+ return
+ }
+
+ // Name is required.
+ if p.Metadata.Name == "" {
+ http.Error(w, "Missing name in POST request", http.StatusBadRequest)
+ return
+ }
+
+ ret, err := h.client.CreateClusterProvider(p)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusCreated)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Get handles GET operations on a particular ClusterProvider Name
+// Returns a ClusterProvider
+func (h clusterHandler) getClusterProviderHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ name := vars["name"]
+ var ret interface{}
+ var err error
+
+ if len(name) == 0 {
+ ret, err = h.client.GetClusterProviders()
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ } else {
+ ret, err = h.client.GetClusterProvider(name)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Delete handles DELETE operations on a particular ClusterProvider Name
+func (h clusterHandler) deleteClusterProviderHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ name := vars["name"]
+
+ err := h.client.DeleteClusterProvider(name)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.WriteHeader(http.StatusNoContent)
+}
+
+// Create handles creation of the Cluster entry in the database
+func (h clusterHandler) createClusterHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ var p moduleLib.Cluster
+ var q moduleLib.ClusterContent
+
+ // Implemenation using multipart form
+ // Review and enable/remove at a later date
+ // Set Max size to 16mb here
+ err := r.ParseMultipartForm(16777216)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+ return
+ }
+
+ jsn := bytes.NewBuffer([]byte(r.FormValue("metadata")))
+ err = json.NewDecoder(jsn).Decode(&p)
+ switch {
+ case err == io.EOF:
+ http.Error(w, "Empty body", http.StatusBadRequest)
+ return
+ case err != nil:
+ http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+ return
+ }
+
+ //Read the file section and ignore the header
+ file, _, err := r.FormFile("file")
+ if err != nil {
+ http.Error(w, "Unable to process file", http.StatusUnprocessableEntity)
+ return
+ }
+
+ defer file.Close()
+
+ //Convert the file content to base64 for storage
+ content, err := ioutil.ReadAll(file)
+ if err != nil {
+ http.Error(w, "Unable to read file", http.StatusUnprocessableEntity)
+ return
+ }
+
+ q.Kubeconfig = base64.StdEncoding.EncodeToString(content)
+
+ // Name is required.
+ if p.Metadata.Name == "" {
+ http.Error(w, "Missing name in POST request", http.StatusBadRequest)
+ return
+ }
+
+ ret, err := h.client.CreateCluster(provider, p, q)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ // w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusCreated)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Get handles GET operations on a particular Cluster Name
+// Returns a Cluster
+func (h clusterHandler) getClusterHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ name := vars["name"]
+
+ // handle the get all clusters case - return a list of only the json parts
+ if len(name) == 0 {
+ var retList []moduleLib.Cluster
+
+ ret, err := h.client.GetClusters(provider)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ for _, cl := range ret {
+ retList = append(retList, moduleLib.Cluster{Metadata: cl.Metadata})
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ err = json.NewEncoder(w).Encode(retList)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ return
+ }
+
+ accepted, _, err := mime.ParseMediaType(r.Header.Get("Accept"))
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusNotAcceptable)
+ return
+ }
+
+ retCluster, err := h.client.GetCluster(provider, name)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ retKubeconfig, err := h.client.GetClusterContent(provider, name)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ switch accepted {
+ case "multipart/form-data":
+ mpw := multipart.NewWriter(w)
+ w.Header().Set("Content-Type", mpw.FormDataContentType())
+ w.WriteHeader(http.StatusOK)
+ pw, err := mpw.CreatePart(textproto.MIMEHeader{"Content-Type": {"application/json"}, "Content-Disposition": {"form-data; name=metadata"}})
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ if err := json.NewEncoder(pw).Encode(retCluster); err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ pw, err = mpw.CreatePart(textproto.MIMEHeader{"Content-Type": {"application/octet-stream"}, "Content-Disposition": {"form-data; name=file; filename=kubeconfig"}})
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ kcBytes, err := base64.StdEncoding.DecodeString(retKubeconfig.Kubeconfig)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ _, err = pw.Write(kcBytes)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ case "application/json":
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ err = json.NewEncoder(w).Encode(retCluster)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ case "application/octet-stream":
+ w.Header().Set("Content-Type", "application/octet-stream")
+ w.WriteHeader(http.StatusOK)
+ kcBytes, err := base64.StdEncoding.DecodeString(retKubeconfig.Kubeconfig)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ _, err = w.Write(kcBytes)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ default:
+ http.Error(w, "set Accept: multipart/form-data, application/json or application/octet-stream", http.StatusMultipleChoices)
+ return
+ }
+}
+
+// Delete handles DELETE operations on a particular Cluster Name
+func (h clusterHandler) deleteClusterHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ name := vars["name"]
+
+ err := h.client.DeleteCluster(provider, name)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.WriteHeader(http.StatusNoContent)
+}
+
+// Create handles creation of the ClusterLabel entry in the database
+func (h clusterHandler) createClusterLabelHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ cluster := vars["cluster-name"]
+ var p moduleLib.ClusterLabel
+
+ err := json.NewDecoder(r.Body).Decode(&p)
+
+ // LabelName is required.
+ if p.LabelName == "" {
+ http.Error(w, "Missing label name in POST request", http.StatusBadRequest)
+ return
+ }
+
+ ret, err := h.client.CreateClusterLabel(provider, cluster, p)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusCreated)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Get handles GET operations on a particular Cluster Label
+// Returns a ClusterLabel
+func (h clusterHandler) getClusterLabelHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ cluster := vars["cluster-name"]
+ label := vars["label"]
+
+ var ret interface{}
+ var err error
+
+ if len(label) == 0 {
+ ret, err = h.client.GetClusterLabels(provider, cluster)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ } else {
+ ret, err = h.client.GetClusterLabel(provider, cluster, label)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Delete handles DELETE operations on a particular ClusterLabel Name
+func (h clusterHandler) deleteClusterLabelHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ cluster := vars["cluster-name"]
+ label := vars["label"]
+
+ err := h.client.DeleteClusterLabel(provider, cluster, label)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.WriteHeader(http.StatusNoContent)
+}
+
+// Create handles creation of the ClusterKvPairs entry in the database
+func (h clusterHandler) createClusterKvPairsHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ cluster := vars["cluster-name"]
+ var p moduleLib.ClusterKvPairs
+
+ err := json.NewDecoder(r.Body).Decode(&p)
+
+ // KvPairsName is required.
+ if p.Metadata.Name == "" {
+ http.Error(w, "Missing Key Value pair name in POST request", http.StatusBadRequest)
+ return
+ }
+
+ ret, err := h.client.CreateClusterKvPairs(provider, cluster, p)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusCreated)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Get handles GET operations on a particular Cluster Key Value Pair
+// Returns a ClusterKvPairs
+func (h clusterHandler) getClusterKvPairsHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ cluster := vars["cluster-name"]
+ kvpair := vars["kvpair"]
+
+ var ret interface{}
+ var err error
+
+ if len(kvpair) == 0 {
+ ret, err = h.client.GetAllClusterKvPairs(provider, cluster)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ } else {
+ ret, err = h.client.GetClusterKvPairs(provider, cluster, kvpair)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+ }
+
+ w.Header().Set("Content-Type", "application/json")
+ w.WriteHeader(http.StatusOK)
+ err = json.NewEncoder(w).Encode(ret)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+}
+
+// Delete handles DELETE operations on a particular Cluster Name
+func (h clusterHandler) deleteClusterKvPairsHandler(w http.ResponseWriter, r *http.Request) {
+ vars := mux.Vars(r)
+ provider := vars["provider-name"]
+ cluster := vars["cluster-name"]
+ kvpair := vars["kvpair"]
+
+ err := h.client.DeleteClusterKvPairs(provider, cluster, kvpair)
+ if err != nil {
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ return
+ }
+
+ w.WriteHeader(http.StatusNoContent)
+}