Change PV and PVC status capacity on resize

We add the proper interface for volume expansion. This will
not have any effect on the underlying volume, but will change properly
the PV capacity and PVC status when a claim is made, and the proper
events will be produced as well.

To do that the external-resizer is used provided by Kubernetes for this
purpose.

Signed-off-by: Marjus Cako <[email protected]>

deploy/local-path-storage.yaml

@@ -16,6 +16,9 @@ kind: ClusterRole
 metadata:
   name: local-path-provisioner-role
 rules:
+  - apiGroups: [ "" ]
+    resources: [ "persistentvolumeclaims/status" ]
+    verbs: [ "patch" ]
   - apiGroups: [ "" ]
     resources: [ "nodes", "persistentvolumeclaims", "configmaps" ]
     verbs: [ "get", "list", "watch" ]

examples/quota/local-path-storage.yaml

@@ -16,6 +16,9 @@ kind: ClusterRole
 metadata:
   name: local-path-provisioner-role
 rules:
+  - apiGroups: [ "" ]
+    resources: [ "persistentvolumeclaims/status" ]
+    verbs: [ "patch" ]
   - apiGroups: [ "" ]
     resources: [ "nodes", "persistentvolumeclaims", "configmaps" ]
     verbs: [ "get", "list", "watch" ]

go.mod

@@ -5,40 +5,50 @@ go 1.17
 require (
 	github.com/Sirupsen/logrus v0.11.0
 	github.com/kelseyhightower/envconfig v1.4.0
+	github.com/kubernetes-csi/external-resizer v1.8.0
 	github.com/pkg/errors v0.9.1
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.8.1
 	github.com/urfave/cli v1.19.1
-	k8s.io/api v0.19.1
-	k8s.io/apimachinery v0.19.1
-	k8s.io/client-go v0.19.1
-	k8s.io/klog/v2 v2.3.0
+	k8s.io/api v0.27.0
+	k8s.io/apimachinery v0.27.0
+	k8s.io/client-go v0.27.0
+	k8s.io/klog/v2 v2.90.1
 	sigs.k8s.io/sig-storage-lib-external-provisioner/v8 v8.0.0
-	sigs.k8s.io/yaml v1.2.0
+	sigs.k8s.io/yaml v1.3.0
 )
 
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/container-storage-interface/spec v1.7.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-logr/logr v0.2.0 // indirect
-	github.com/gogo/protobuf v1.3.1 // indirect
-	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
+	github.com/emicklei/go-restful/v3 v3.9.0 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.1 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/google/go-cmp v0.5.8 // indirect
-	github.com/google/gofuzz v1.1.0 // indirect
-	github.com/google/uuid v1.1.1 // indirect
-	github.com/googleapis/gnostic v0.4.1 // indirect
-	github.com/hashicorp/golang-lru v0.5.1 // indirect
-	github.com/imdario/mergo v0.3.5 // indirect
+	github.com/google/gnostic v0.5.7-v3refs // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/imdario/mergo v0.3.12 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/kubernetes-csi/csi-lib-utils v0.13.0 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2 // indirect
 	github.com/miekg/dns v1.1.29 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_golang v1.11.1 // indirect
+	github.com/prometheus/client_golang v1.14.0 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.32.1 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	golang.org/x/crypto v0.7.0 // indirect
@@ -49,11 +59,17 @@ require (
 	golang.org/x/text v0.8.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21 // indirect
+	google.golang.org/grpc v1.51.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
-	k8s.io/kube-openapi v0.0.0-20200805222855-6aeccd4b50c6 // indirect
-	k8s.io/utils v0.0.0-20200729134348-d5654de09c73 // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.0.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/apiserver v0.27.0 // indirect
+	k8s.io/component-base v0.27.0 // indirect
+	k8s.io/csi-translation-lib v0.27.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20230308215209-15aac26d736a // indirect
+	k8s.io/utils v0.0.0-20230209194617-a36077c30491 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 )