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-rw-r--r--src/k8splugin/api/api.go120
1 files changed, 120 insertions, 0 deletions
diff --git a/src/k8splugin/api/api.go b/src/k8splugin/api/api.go
new file mode 100644
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--- /dev/null
+++ b/src/k8splugin/api/api.go
@@ -0,0 +1,120 @@
+/*
+Copyright 2018 Intel Corporation.
+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 (
+ "os"
+ "path/filepath"
+ "plugin"
+ "strings"
+
+ "github.com/gorilla/mux"
+ pkgerrors "github.com/pkg/errors"
+
+ "k8splugin/db"
+ "k8splugin/krd"
+)
+
+// CheckEnvVariables checks for required Environment variables
+func CheckEnvVariables() error {
+ envList := []string{"CSAR_DIR", "KUBE_CONFIG_DIR", "DATABASE_TYPE", "DATABASE_IP"}
+ for _, env := range envList {
+ if _, ok := os.LookupEnv(env); !ok {
+ return pkgerrors.New("environment variable " + env + " not set")
+ }
+ }
+
+ return nil
+}
+
+// CheckDatabaseConnection checks if the database is up and running and
+// plugin can talk to it
+func CheckDatabaseConnection() error {
+ err := db.CreateDBClient(os.Getenv("DATABASE_TYPE"))
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = db.DBconn.InitializeDatabase()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = db.DBconn.CheckDatabase()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+ return nil
+}
+
+// LoadPlugins loads all the compiled .so plugins
+func LoadPlugins() error {
+ pluginsDir, ok := os.LookupEnv("PLUGINS_DIR")
+ if !ok {
+ pluginsDir, _ = filepath.Abs(filepath.Dir(os.Args[0]))
+ }
+ err := filepath.Walk(pluginsDir,
+ func(path string, info os.FileInfo, err error) error {
+ if strings.Contains(path, ".so") {
+ p, err := plugin.Open(path)
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ krd.LoadedPlugins[info.Name()[:len(info.Name())-3]] = p
+ }
+ return err
+ })
+ if err != nil {
+ return err
+ }
+
+ return nil
+}
+
+// CheckInitialSettings is used to check initial settings required to start api
+func CheckInitialSettings() error {
+ err := CheckEnvVariables()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = CheckDatabaseConnection()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ err = LoadPlugins()
+ if err != nil {
+ return pkgerrors.Cause(err)
+ }
+
+ return nil
+}
+
+// NewRouter creates a router instance that serves the VNFInstance web methods
+func NewRouter(kubeconfig string) *mux.Router {
+ router := mux.NewRouter()
+
+ vnfInstanceHandler := router.PathPrefix("/v1/vnf_instances").Subrouter()
+ vnfInstanceHandler.HandleFunc("/", CreateHandler).Methods("POST").Name("VNFCreation")
+ vnfInstanceHandler.HandleFunc("/{cloudRegionID}/{namespace}", ListHandler).Methods("GET")
+ vnfInstanceHandler.HandleFunc("/{cloudRegionID}/{namespace}/{externalVNFID}", DeleteHandler).Methods("DELETE")
+ vnfInstanceHandler.HandleFunc("/{cloudRegionID}/{namespace}/{externalVNFID}", GetHandler).Methods("GET")
+
+ // (TODO): Fix update method
+ // vnfInstanceHandler.HandleFunc("/{vnfInstanceId}", UpdateHandler).Methods("PUT")
+
+ return router
+}