last updates and linter errors fixed

cmd/controller/Dockerfile

@@ -1,10 +1,10 @@
-FROM golang:1.15-alpine as builder
+FROM golang:1.16-alpine as builder
 RUN apk add make binutils
 COPY / /work
 WORKDIR /work
 RUN make controller
 
-FROM alpine:3.12
+FROM alpine:3.13
 COPY --from=builder /work/bin/csi-lvm-controller /csi-lvm-controller
 USER 65534
 ENTRYPOINT ["/csi-lvm-controller"]

cmd/provisioner/Dockerfile

@@ -1,10 +1,10 @@
-FROM golang:1.15-alpine as builder
+FROM golang:1.16-alpine as builder
 RUN apk add make binutils
 COPY / /work
 WORKDIR /work
 RUN make provisioner
 
-FROM alpine:3.12
+FROM alpine:3.13
 RUN apk add lvm2 e2fsprogs e2fsprogs-extra smartmontools nvme-cli util-linux
 COPY --from=builder /work/bin/csi-lvm-provisioner /csi-lvm-provisioner
 USER root

cmd/provisioner/createlv.go

@@ -95,24 +95,24 @@ func createLV(c *cli.Context) error {
 
 	output, err := createVG(vgName, devicesPattern)
 	if err != nil {
-		return fmt.Errorf("unable to create vg: %v output:%s", err, output)
+		return fmt.Errorf("unable to create vg: %w output:%s", err, output)
 	}
 
 	output, err = createLVS(context.Background(), vgName, lvName, lvSize, lvmType, blockMode)
 	if err != nil {
-		return fmt.Errorf("unable to create lv: %v output:%s", err, output)
+		return fmt.Errorf("unable to create lv: %w output:%s", err, output)
 	}
 
 	if !blockMode {
 		output, err = mountLV(lvName, vgName, dirName)
 		if err != nil {
-			return fmt.Errorf("unable to mount lv: %v output:%s", err, output)
+			return fmt.Errorf("unable to mount lv: %w output:%s", err, output)
 		}
 		klog.Infof("mounted lv %s size:%d vg:%s devices:%s created", lvName, lvSize, vgName, devicesPattern)
 	} else {
 		output, err = bindMountLV(lvName, vgName, dirName)
 		if err != nil {
-			return fmt.Errorf("unable to bind mount lv: %v output:%s", err, output)
+			return fmt.Errorf("unable to bind mount lv: %w output:%s", err, output)
 		}
 		klog.Infof("block lv %s size:%d vg:%s devices:%s created", lvName, lvSize, vgName, devicesPattern)
 	}
@@ -143,7 +143,7 @@ func mountLV(lvname, vgname, directory string) (string, error) {
 	cmd := exec.Command("blkid", lvPath)
 	out, err := cmd.CombinedOutput()
 	if err != nil {
-		klog.Infof("unable to check if %s is already formatted:%v", lvPath, err)
+		klog.Infof("unable to check if %s is already formatted:%w", lvPath, err)
 	}
 	if strings.Contains(string(out), "ext4") {
 		formatted = true
@@ -155,13 +155,13 @@ func mountLV(lvname, vgname, directory string) (string, error) {
 		cmd = exec.Command("mkfs.ext4", lvPath)
 		out, err = cmd.CombinedOutput()
 		if err != nil {
-			return string(out), fmt.Errorf("unable to format lv:%s err:%v", lvname, err)
+			return string(out), fmt.Errorf("unable to format lv:%s err:%w", lvname, err)
 		}
 	}
 
 	err = os.MkdirAll(mountPath, 0777)
 	if err != nil {
-		return string(out), fmt.Errorf("unable to create mount directory for lv:%s err:%v", lvname, err)
+		return string(out), fmt.Errorf("unable to create mount directory for lv:%s err:%w", lvname, err)
 	}
 
 	// --make-shared is required that this mount is visible outside this container.
@@ -172,12 +172,12 @@ func mountLV(lvname, vgname, directory string) (string, error) {
 	if err != nil {
 		mountOutput := string(out)
 		if !strings.Contains(mountOutput, "already mounted") {
-			return string(out), fmt.Errorf("unable to mount %s to %s err:%v output:%s", lvPath, mountPath, err, out)
+			return string(out), fmt.Errorf("unable to mount %s to %s err:%w output:%s", lvPath, mountPath, err, out)
 		}
 	}
 	err = os.Chmod(mountPath, 0777)
 	if err != nil {
-		return "", fmt.Errorf("unable to change permissions of volume mount %s err:%v", mountPath, err)
+		return "", fmt.Errorf("unable to change permissions of volume mount %s err:%w", mountPath, err)
 	}
 	klog.Infof("mountlv output:%s", out)
 	return "", nil
@@ -188,7 +188,7 @@ func bindMountLV(lvname, vgname, directory string) (string, error) {
 	mountPath := path.Join(directory, lvname)
 	_, err := os.Create(mountPath)
 	if err != nil {
-		return "", fmt.Errorf("unable to create mount directory for lv:%s err:%v", lvname, err)
+		return "", fmt.Errorf("unable to create mount directory for lv:%s err:%w", lvname, err)
 	}
 
 	// --make-shared is required that this mount is visible outside this container.
@@ -200,12 +200,12 @@ func bindMountLV(lvname, vgname, directory string) (string, error) {
 	if err != nil {
 		mountOutput := string(out)
 		if !strings.Contains(mountOutput, "already mounted") {
-			return string(out), fmt.Errorf("unable to mount %s to %s err:%v output:%s", lvPath, mountPath, err, out)
+			return string(out), fmt.Errorf("unable to mount %s to %s err:%w output:%s", lvPath, mountPath, err, out)
 		}
 	}
 	err = os.Chmod(mountPath, 0777)
 	if err != nil {
-		return "", fmt.Errorf("unable to change permissions of volume mount %s err:%v", mountPath, err)
+		return "", fmt.Errorf("unable to change permissions of volume mount %s err:%w", mountPath, err)
 	}
 	klog.Infof("bindmountlv output:%s", out)
 	return "", nil
@@ -214,7 +214,7 @@ func bindMountLV(lvname, vgname, directory string) (string, error) {
 func vgExists(name string) bool {
 	vgs, err := commands.ListVG(context.Background())
 	if err != nil {
-		klog.Infof("unable to list existing volumegroups:%v", err)
+		klog.Infof("unable to list existing volumegroups:%w", err)
 	}
 	vgexists := false
 	for _, vg := range vgs {
@@ -232,12 +232,12 @@ func vgactivate(name string) {
 	cmd := exec.Command("vgscan")
 	out, err := cmd.CombinedOutput()
 	if err != nil {
-		klog.Infof("unable to scan for volumegroups:%s %v", out, err)
+		klog.Infof("unable to scan for volumegroups:%s %w", out, err)
 	}
 	cmd = exec.Command("vgchange", "-ay")
 	_, err = cmd.CombinedOutput()
 	if err != nil {
-		klog.Infof("unable to activate volumegroups:%s %v", out, err)
+		klog.Infof("unable to activate volumegroups:%s %w", out, err)
 	}
 }
 
@@ -257,7 +257,7 @@ func createVG(name string, devicesPattern []string) (string, error) {
 
 	physicalVolumes, err := devices(devicesPattern)
 	if err != nil {
-		return "", fmt.Errorf("unable to lookup devices from devicesPattern %s, err:%v", devicesPattern, err)
+		return "", fmt.Errorf("unable to lookup devices from devicesPattern %s, err:%w", devicesPattern, err)
 	}
 	tags := []string{"vg.metal-stack.io/csi-lvm"}
 
@@ -276,7 +276,7 @@ func createVG(name string, devicesPattern []string) (string, error) {
 func createLVS(ctx context.Context, vg string, name string, size uint64, lvmType string, blockMode bool) (string, error) {
 	lvs, err := commands.ListLV(context.Background(), vg+"/"+name)
 	if err != nil {
-		klog.Infof("unable to list existing logicalvolumes:%v", err)
+		klog.Infof("unable to list existing logicalvolumes:%w", err)
 	}
 	lvExists := false
 	for _, lv := range lvs {
@@ -300,7 +300,7 @@ func createLVS(ctx context.Context, vg string, name string, size uint64, lvmType
 
 	pvs, err := pvCount(vg)
 	if err != nil {
-		return "", fmt.Errorf("unable to determine pv count of vg: %v", err)
+		return "", fmt.Errorf("unable to determine pv count of vg: %w", err)
 	}
 
 	if pvs < 2 {

cmd/provisioner/deletelv.go

@@ -62,12 +62,12 @@ func deleteLV(c *cli.Context) error {
 
 	output, err := umountLV(lvName, vgName, dirName)
 	if err != nil {
-		return fmt.Errorf("unable to delete lv: %v output:%s", err, output)
+		return fmt.Errorf("unable to delete lv: %w output:%s", err, output)
 	}
 
 	output, err = commands.RemoveLV(context.Background(), vgName, lvName)
 	if err != nil {
-		return fmt.Errorf("unable to delete lv: %v output:%s", err, output)
+		return fmt.Errorf("unable to delete lv: %w output:%s", err, output)
 	}
 	klog.Infof("lv %s vg:%s deleted", lvName, vgName)
 	return nil
@@ -80,11 +80,11 @@ func umountLV(lvname, vgname, directory string) (string, error) {
 	cmd := exec.Command("umount", "--lazy", "--force", mountPath)
 	out, err := cmd.CombinedOutput()
 	if err != nil {
-		klog.Errorf("unable to umount %s from %s output:%s err:%v", mountPath, lvPath, string(out), err)
+		klog.Errorf("unable to umount %s from %s output:%s err:%w", mountPath, lvPath, string(out), err)
 	}
 	err = os.Remove(mountPath)
 	if err != nil {
-		klog.Errorf("unable to remove mount directory:%s err:%v", mountPath, err)
+		klog.Errorf("unable to remove mount directory:%s err:%w", mountPath, err)
 	}
 	return "", nil
 }

deploy/reviver.yaml

@@ -19,7 +19,6 @@ spec:
   privileged: true
   fsGroup:
     rule: RunAsAny
-  privileged: true
   runAsUser:
     rule: RunAsAny
   seLinux:

go.mod

@@ -1,37 +1,33 @@
 module github.com/metal-stack/csi-lvm
 
-go 1.15
+go 1.16
 
 require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
-	github.com/fsnotify/fsnotify v1.4.9 // indirect
-	github.com/go-logr/logr v0.3.0 // indirect
-	github.com/google/go-cmp v0.5.3 // indirect
+	github.com/google/go-cmp v0.5.5 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/lvmd v0.0.0-20200421122210-17bd8b9f710f
-	github.com/googleapis/gnostic v0.4.0 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
-	github.com/miekg/dns v1.1.35 // indirect
+	github.com/miekg/dns v1.1.40 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.8.0 // indirect
-	github.com/prometheus/common v0.15.0 // indirect
+	github.com/prometheus/client_golang v1.9.0 // indirect
+	github.com/prometheus/common v0.18.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/stretchr/testify v1.5.1 // indirect
+	github.com/stretchr/testify v1.7.0 // indirect
 	github.com/urfave/cli/v2 v2.3.0
-	golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9 // indirect
-	golang.org/x/net v0.0.0-20201110031124-69a78807bb2b // indirect
-	golang.org/x/oauth2 v0.0.0-20201109201403-9fd604954f58 // indirect
-	golang.org/x/sys v0.0.0-20201112073958-5cba982894dd // indirect
-	golang.org/x/text v0.3.4 // indirect
-	golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e // indirect
+	golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 // indirect
+	golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 // indirect
+	golang.org/x/oauth2 v0.0.0-20210311163135-5366d9dc1934 // indirect
+	golang.org/x/text v0.3.5 // indirect
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20201112120144-2985b7af83de // indirect
-	google.golang.org/grpc v1.33.2 // indirect
-	k8s.io/api v0.18.12
-	k8s.io/apimachinery v0.18.12
-	k8s.io/client-go v0.18.12
-	k8s.io/klog/v2 v2.4.0
-	k8s.io/utils v0.0.0-20201110183641-67b214c5f920 // indirect
-	sigs.k8s.io/sig-storage-lib-external-provisioner/v6 v6.0.0
+	google.golang.org/genproto v0.0.0-20210311153111-e2979279ddde // indirect
+	google.golang.org/grpc v1.36.0 // indirect
+	k8s.io/api v0.20.4
+	k8s.io/apimachinery v0.20.4
+	k8s.io/client-go v0.20.4
+	k8s.io/klog/v2 v2.7.0
+	k8s.io/utils v0.0.0-20210305010621-2afb4311ab10 // indirect
+	sigs.k8s.io/sig-storage-lib-external-provisioner/v6 v6.3.0
 )