feat: init

config/env.go

@@ -0,0 +1,76 @@
+package config
+
+import (
+	"os"
+	"strconv"
+	"strings"
+)
+
+const (
+	envCSIServerURL      = "KKS_CSI_SERVER_URL"
+	envCSIAccessToken    = "KKS_CSI_ACCESS_TOKEN"
+	envCSIDriverMode     = "KKS_CSI_DRIVER_MODE"
+	envCSINodeID         = "KKS_CSI_NODE_ID"
+	envCSIDriverName     = "KKS_CSI_DRIVER_NAME"
+	envCSIDriverEndpoint = "KKS_CSI_DRIVER_ENDPOINT"
+)
+
+// ApplyEnvOverrides applies environment variables used by the Helm chart.
+func ApplyEnvOverrides(cfg *Config) {
+	if cfg == nil {
+		return
+	}
+	if cfg.Driver == nil {
+		cfg.Driver = &DriverConf{}
+	}
+	if cfg.Client == nil {
+		cfg.Client = &ClientConf{}
+	}
+
+	if v := strings.TrimSpace(os.Getenv(envCSIServerURL)); v != "" {
+		cfg.Client.ServerURL = strings.TrimRight(v, "/")
+	}
+	if v := strings.TrimSpace(os.Getenv(envCSIAccessToken)); v != "" {
+		cfg.Client.AccessToken = v
+	}
+	if v := strings.TrimSpace(os.Getenv(envCSIDriverMode)); v != "" {
+		cfg.Driver.Mode = strings.ToLower(v)
+	}
+	if v := strings.TrimSpace(os.Getenv(envCSINodeID)); v != "" {
+		cfg.Driver.NodeID = v
+	}
+	if v := strings.TrimSpace(os.Getenv(envCSIDriverName)); v != "" {
+		cfg.Driver.Name = v
+	}
+	if v := strings.TrimSpace(os.Getenv(envCSIDriverEndpoint)); v != "" {
+		cfg.Driver.Endpoint = v
+	}
+
+	if cfg.Client.TimeoutSeconds <= 0 {
+		cfg.Client.TimeoutSeconds = 30
+	}
+	if cfg.Driver.Mode == "" {
+		cfg.Driver.Mode = CSIModeNode
+	}
+	if cfg.Driver.Name == "" {
+		cfg.Driver.Name = "storage.csi.kloud.team"
+	}
+	if cfg.Driver.Endpoint == "" {
+		cfg.Driver.Endpoint = "unix:///var/lib/kubelet/plugins/storage.csi.kloud.team/csi.sock"
+	}
+}
+
+func ApplyClientTimeoutFromEnv(cfg *Config) {
+	if cfg == nil || cfg.Client == nil {
+		return
+	}
+	raw := strings.TrimSpace(os.Getenv("KKS_CSI_CLIENT_TIMEOUT_SECONDS"))
+	if raw == "" {
+		return
+	}
+	seconds, err := strconv.Atoi(raw)
+	if err != nil || seconds <= 0 {
+		return
+	}
+	cfg.Client.TimeoutSeconds = seconds
+}