NONRTRIC-946: Add support for Kong routes

[nonrtric/plt/sme.git] / servicemanager / internal / envreader / envreader.go

diff --git a/servicemanager/internal/envreader/envreader.go b/servicemanager/internal/envreader/envreader.go
new file mode 100644 (file)
index 0000000..5d1b6de
--- /dev/null
+++ b/servicemanager/internal/envreader/envreader.go
@@ -0,0 +1,122 @@
+// -
+//   ========================LICENSE_START=================================
+//   O-RAN-SC
+//   %%
+//   Copyright (C) 2024: OpenInfra Foundation Europe
+//   %%
+//   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.
+//   ========================LICENSE_END===================================
+//
+
+package envreader
+
+import (
+       "os"
+       "path/filepath"
+       "runtime"
+       "strconv"
+
+       "github.com/joho/godotenv"
+       log "github.com/sirupsen/logrus"
+)
+
+func ReadDotEnv() (map[string]string, map[string]int, error) {
+       log.SetFormatter(&log.TextFormatter{
+               FullTimestamp: true,
+       })
+
+       env := os.Getenv("SERVICE_MANAGER_ENV")
+       log.Infof("read SERVICE_MANAGER_ENV: %s", env)
+
+       if env == "" {
+               env = "development"
+       }
+
+       // Root folder of this project
+       _, file, _, _ := runtime.Caller(0)
+       basePath := filepath.Join(filepath.Dir(file), "../..")
+       basePath += "/"
+
+       var myEnv map[string]string
+       envFile := basePath + ".env." + env
+       myEnv, err := godotenv.Read(envFile)
+
+       if err != nil {
+               log.Warnf("error reading .env file: %s", err)
+
+               envFile = basePath + ".env"
+               myEnv, err = godotenv.Read(envFile)
+               if err != nil {
+                       log.Fatalf("error reading .env file: %s", err)
+                       return nil, nil, err
+               }
+       }
+       log.Infof("imported .env: %s", envFile)
+
+       loglevel, err := log.ParseLevel(myEnv["LOG_LEVEL"])
+       if err != nil {
+               log.Fatalf("error loading LOG_LEVEL from .env file: %s", err)
+               return nil, nil, err
+       }
+       log.SetLevel(loglevel)
+
+       log.Infof("KONG_DOMAIN %s", myEnv["KONG_DOMAIN"])
+       log.Infof("KONG_PROTOCOL %s", myEnv["KONG_PROTOCOL"])
+       log.Infof("KONG_IPV4 %s", myEnv["KONG_IPV4"])
+       log.Infof("KONG_DATA_PLANE_PORT %s", myEnv["KONG_DATA_PLANE_PORT"])
+       log.Infof("KONG_CONTROL_PLANE_PORT %s", myEnv["KONG_CONTROL_PLANE_PORT"])
+       log.Infof("CAPIF_PROTOCOL %s", myEnv["CAPIF_PROTOCOL"])
+       log.Infof("CAPIF_IPV4 %s", myEnv["CAPIF_IPV4"])
+       log.Infof("CAPIF_PORT %s", myEnv["CAPIF_PORT"])
+       log.Infof("LOG_LEVEL %s", myEnv["LOG_LEVEL"])
+       log.Infof("SERVICE_MANAGER_PORT %s", myEnv["SERVICE_MANAGER_PORT"])
+       log.Infof("TEST_SERVICE_IPV4 %s", myEnv["TEST_SERVICE_IPV4"])
+       log.Infof("TEST_SERVICE_PORT %s", myEnv["TEST_SERVICE_PORT"])
+
+       var myPorts = make(map[string]int)
+
+       myPorts["KONG_DATA_PLANE_PORT"], err = strconv.Atoi(myEnv["KONG_DATA_PLANE_PORT"])
+       if err != nil {
+               log.Fatalf("error loading KONG_DATA_PLANE_PORT from .env file: %s", err)
+               return nil, nil, err
+       }
+
+       myPorts["KONG_CONTROL_PLANE_PORT"], err = strconv.Atoi(myEnv["KONG_CONTROL_PLANE_PORT"])
+       if err != nil {
+               log.Fatalf("error loading KONG_CONTROL_PLANE_PORT from .env file: %s", err)
+               return nil, nil, err
+       }
+
+       myPorts["CAPIF_PORT"], err = strconv.Atoi(myEnv["CAPIF_PORT"])
+       if err != nil {
+               log.Fatalf("error loading CAPIF_PORT from .env file: %s", err)
+               return nil, nil, err
+       }
+
+       myPorts["SERVICE_MANAGER_PORT"], err = strconv.Atoi(myEnv["SERVICE_MANAGER_PORT"])
+       if err != nil {
+               log.Fatalf("error loading SERVICE_MANAGER_PORT from .env file: %s", err)
+               return nil, nil, err
+       }
+
+       // TEST_SERVICE_PORT is required for unit testing, but not required for production
+       if myEnv["TEST_SERVICE_PORT"] != "" {
+               myPorts["TEST_SERVICE_PORT"], err = strconv.Atoi(myEnv["TEST_SERVICE_PORT"])
+               if err != nil {
+                       log.Fatalf("error loading TEST_SERVICE_PORT from .env file: %s", err)
+                       return nil, nil, err
+               }
+       }
+
+       return myEnv, myPorts, err
+}