Merge pull request #67 from jkaninda/oauth-middleware

chore: add default configuration file verification before generating …

Dockerfile

@@ -11,8 +11,7 @@ RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-X 'github.com/jkaninda/goma-gat
 
 FROM alpine:3.20.3
 ENV TZ=UTC
-ARG WORKDIR="/config"
+ARG WORKDIR="/etc/goma/"
-ARG CERTSDIR="${WORKDIR}/certs"
 ARG appVersion=""
 ARG user="goma"
 ENV VERSION=${appVersion}
@@ -20,8 +19,8 @@ LABEL author="Jonas Kaninda"
 LABEL version=${appVersion}
 LABEL github="github.com/jkaninda/goma-gateway"
 
-RUN mkdir -p ${WORKDIR} ${CERTSDIR} && \
+RUN mkdir -p ${WORKDIR} && \
-     chmod a+rw ${WORKDIR} ${CERTSDIR}
+     chmod a+rw ${WORKDIR}
 COPY --from=build /app/goma /usr/local/bin/goma
 RUN chmod a+x /usr/local/bin/goma && \
     ln -s /usr/local/bin/goma /usr/bin/goma

internal/config.go

@@ -39,7 +39,7 @@ func (GatewayServer) Config(configFile string) (*GatewayServer, error) {
 		c := &GatewayConfig{}
 		err = yaml.Unmarshal(buf, c)
 		if err != nil {
-			return nil, fmt.Errorf("error parsing yaml %q: %w", configFile, err)
+			return nil, fmt.Errorf("parsing the configuration file %q: %w", configFile, err)
 		}
 		return &GatewayServer{
 			ctx:         nil,
@@ -48,6 +48,27 @@ func (GatewayServer) Config(configFile string) (*GatewayServer, error) {
 		}, nil
 	}
 	logger.Error("Configuration file not found: %v", configFile)
+	// Check a default file
+	if util.FileExists(ConfigFile) {
+		buf, err := os.ReadFile(ConfigFile)
+		if err != nil {
+			return nil, err
+
+		}
+		logger.Info("Using configuration file: %s", ConfigFile)
+		util.SetEnv("GOMA_CONFIG_FILE", configFile)
+		c := &GatewayConfig{}
+		err = yaml.Unmarshal(buf, c)
+		if err != nil {
+			return nil, fmt.Errorf("parsing the configuration file %q: %w", ConfigFile, err)
+		}
+		return &GatewayServer{
+			ctx:         nil,
+			gateway:     c.GatewayConfig,
+			middlewares: c.Middlewares,
+		}, nil
+
+	}
 	logger.Info("Generating new configuration file...")
 	initConfig(ConfigFile)
 	logger.Info("Server configuration file is available at %s", ConfigFile)

internal/var.go

@@ -1,6 +1,6 @@
 package pkg
 
-const ConfigFile = "/config/goma.yml"                          // Default configuration file
+const ConfigFile = "/etc/goma/goma.yml"                        // Default configuration file
 const accessControlAllowOrigin = "Access-Control-Allow-Origin" // Cors
 const serverName = "Goma"
 const gatewayName = "Goma Gateway"