main.go

//go:generate go generate ./core

package main

import (
	"context"
	"flag"
	"fmt"
	"os"
	"strings"

	"github.com/dell/csi-vxflexos/k8sutils"
	"github.com/dell/csi-vxflexos/provider"
	"github.com/dell/csi-vxflexos/service"
	"github.com/dell/gocsi"
)

// main is ignored when this package is built as a go plug-in
func main() {

	arrayConfig := flag.String("array-config", "", "json file with array(s) configuration")
	enableLeaderElection := flag.Bool("leader-election", false, "boolean to enable leader election")
	leaderElectionNamespace := flag.String("leader-election-namespace", "", "namespace where leader election lease will be created")
	kubeconfig := flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
	flag.Parse()

	if *arrayConfig == "" {
		fmt.Fprintf(os.Stderr, "array-config argument is mandatory")
		os.Exit(1)
	}
	service.ArrayConfig = *arrayConfig

	run := func(ctx context.Context) {
		gocsi.Run(ctx, service.Name, "A PowerFlex Container Storage Interface (CSI) Plugin",
			usage, provider.New())
	}
	if !*enableLeaderElection {
		run(context.Background())
	} else {
		driverName := strings.Replace(service.Name, ".", "-", -1)
		lockName := fmt.Sprintf("driver-%s", driverName)
		k8sclientset, err := k8sutils.CreateKubeClientSet(*kubeconfig)
		if err != nil {
			_, _ = fmt.Fprintf(os.Stderr, "failed to initialize leader election: %v", err)
			os.Exit(1)
		}
		// Attempt to become leader and start the driver
		k8sutils.LeaderElection(k8sclientset, lockName, *leaderElectionNamespace, run)
	}

}

const usage = `    X_CSI_VXFLEXOS_SDCGUID
        Specifies the GUID of the SDC. This is only used by the Node Service,
        and removes a need for calling an external binary to retrieve the GUID.
        If not set, the external binary will be invoked.

        The default value is empty.

    X_CSI_VXFLEXOS_THICKPROVISIONING
        Specifies whether thick provisiong should be used when creating volumes.

        The default value is false.

    X_CSI_VXFLEXOS_ENABLESNAPSHOTCGDELETE
        When a snapshot is deleted, if it is a member of a Consistency Group, enable automatic deletion
        of all snapshots in the consistency group.

        The default value is false.

    X_CSI_VXFLEXOS_ENABLELISTVOLUMESNAPSHOTS
        When listing volumes, if this option is is enabled, then volumes and snapshots will be returned.
        Otherwise only volumes are returned.

        The default value is false.
`