feat(int): allow REDIS_URL as alais for CACHE_DSN

Refs: #119

internal/env.go

@@ -35,6 +35,7 @@ const (
  sqlUrl = "DATABASE_URL"
  cacheMode = "CACHE_MODE"
  cacheDsn = "CACHE_DSN"
+ redisUrl = "REDIS_URL"
  webApiMode = "WEBAPI_MODE"
  webApiBind = "WEBAPI_BIND"
  webApiHost = "WEBAPI_HOST"
@@ -115,7 +116,7 @@ func initEnv() {
  sqlMode: getEnvOrFail(sqlMode),
  sqlUrl: getEnvOrDefault(sqlUrl, ""),
  cacheMode: cache.Mode(getEnvOrFail(cacheMode)),
- cacheDsn: cache.Dsn(getEnvOrDefault(cacheDsn, "")),
+ cacheDsn: findCacheDsn(),
  webApiMode: getEnvOrDefault(webApiMode, DefaultWebApiMode),
  webApiBind: getEnvOrDefault(webApiBind, DefaultWebApiBind),
  webApiHost: getEnvOrDefault(webApiHost, DefaultWebApiHost),
@@ -124,3 +125,16 @@ func initEnv() {
  }
  coreLogger.Info("Successfully loaded environment configuration!")
 }
+
+// findCacheDsn returns the configured cache DSN for the application.
+// The function allows the use of aliases as REDIS_URL for the CACHE_DSN variable.
+// The function will return on the first found valid alias.
+// When no alias is set, the CACHE_DSN variable will be used by default.
+func findCacheDsn() cache.Dsn {
+ redisUrl := getEnvOrDefault(redisUrl, "")
+ if "" != redisUrl {
+ return cache.Dsn(redisUrl)
+ }
+
+ return cache.Dsn(getEnvOrDefault(cacheDsn, ""))
+}