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-rw-r--r--pkg/api/handlers/libpod/volumes.go19
-rw-r--r--pkg/api/server/register_volumes.go22
-rw-r--r--pkg/bindings/volumes/types.go6
-rw-r--r--pkg/bindings/volumes/types_exists_options.go88
-rw-r--r--pkg/bindings/volumes/volumes.go13
-rw-r--r--pkg/domain/entities/engine_container.go1
-rw-r--r--pkg/domain/infra/abi/volumes.go9
-rw-r--r--pkg/domain/infra/tunnel/volumes.go11
8 files changed, 169 insertions, 0 deletions
diff --git a/pkg/api/handlers/libpod/volumes.go b/pkg/api/handlers/libpod/volumes.go
index 38fdf1b4d..1a8759c6c 100644
--- a/pkg/api/handlers/libpod/volumes.go
+++ b/pkg/api/handlers/libpod/volumes.go
@@ -11,6 +11,7 @@ import (
"github.com/containers/podman/v2/pkg/domain/entities"
"github.com/containers/podman/v2/pkg/domain/entities/reports"
"github.com/containers/podman/v2/pkg/domain/filters"
+ "github.com/containers/podman/v2/pkg/domain/infra/abi"
"github.com/containers/podman/v2/pkg/domain/infra/abi/parse"
"github.com/gorilla/schema"
"github.com/pkg/errors"
@@ -203,3 +204,21 @@ func RemoveVolume(w http.ResponseWriter, r *http.Request) {
}
utils.WriteResponse(w, http.StatusNoContent, "")
}
+
+// ExistsVolume check if a volume exists
+func ExistsVolume(w http.ResponseWriter, r *http.Request) {
+ runtime := r.Context().Value("runtime").(*libpod.Runtime)
+ name := utils.GetName(r)
+
+ ic := abi.ContainerEngine{Libpod: runtime}
+ report, err := ic.VolumeExists(r.Context(), name)
+ if err != nil {
+ utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
+ return
+ }
+ if !report.Value {
+ utils.Error(w, "volume not found", http.StatusNotFound, define.ErrNoSuchVolume)
+ return
+ }
+ utils.WriteResponse(w, http.StatusNoContent, "")
+}
diff --git a/pkg/api/server/register_volumes.go b/pkg/api/server/register_volumes.go
index aa0f67604..68727f2e1 100644
--- a/pkg/api/server/register_volumes.go
+++ b/pkg/api/server/register_volumes.go
@@ -28,6 +28,28 @@ func (s *APIServer) registerVolumeHandlers(r *mux.Router) error {
// '500':
// "$ref": "#/responses/InternalError"
r.Handle(VersionedPath("/libpod/volumes/create"), s.APIHandler(libpod.CreateVolume)).Methods(http.MethodPost)
+ // swagger:operation GET /libpod/volumes/{name}/exists libpod libpodExistsVolume
+ // ---
+ // tags:
+ // - volumes
+ // summary: Volume exists
+ // description: Check if a volume exists
+ // parameters:
+ // - in: path
+ // name: name
+ // type: string
+ // required: true
+ // description: the name of the volume
+ // produces:
+ // - application/json
+ // responses:
+ // 204:
+ // description: volume exists
+ // 404:
+ // $ref: '#/responses/NoSuchVolume'
+ // 500:
+ // $ref: '#/responses/InternalError'
+ r.Handle(VersionedPath("/libpod/volumes/{name}/exists"), s.APIHandler(libpod.ExistsVolume)).Methods(http.MethodGet)
// swagger:operation GET /libpod/volumes/json libpod libpodListVolumes
// ---
// tags:
diff --git a/pkg/bindings/volumes/types.go b/pkg/bindings/volumes/types.go
index 379174e33..3fda77ddd 100644
--- a/pkg/bindings/volumes/types.go
+++ b/pkg/bindings/volumes/types.go
@@ -30,3 +30,9 @@ type RemoveOptions struct {
// Force removes the volume even if it is being used
Force *bool
}
+
+//go:generate go run ../generator/generator.go ExistsOptions
+// ExistsOptions are optional options for checking
+// if a volume exists
+type ExistsOptions struct {
+}
diff --git a/pkg/bindings/volumes/types_exists_options.go b/pkg/bindings/volumes/types_exists_options.go
new file mode 100644
index 000000000..c66586a23
--- /dev/null
+++ b/pkg/bindings/volumes/types_exists_options.go
@@ -0,0 +1,88 @@
+package volumes
+
+import (
+ "net/url"
+ "reflect"
+ "strconv"
+ "strings"
+
+ jsoniter "github.com/json-iterator/go"
+ "github.com/pkg/errors"
+)
+
+/*
+This file is generated automatically by go generate. Do not edit.
+*/
+
+// Changed
+func (o *ExistsOptions) Changed(fieldName string) bool {
+ r := reflect.ValueOf(o)
+ value := reflect.Indirect(r).FieldByName(fieldName)
+ return !value.IsNil()
+}
+
+// ToParams
+func (o *ExistsOptions) ToParams() (url.Values, error) {
+ params := url.Values{}
+ if o == nil {
+ return params, nil
+ }
+ json := jsoniter.ConfigCompatibleWithStandardLibrary
+ s := reflect.ValueOf(o)
+ if reflect.Ptr == s.Kind() {
+ s = s.Elem()
+ }
+ sType := s.Type()
+ for i := 0; i < s.NumField(); i++ {
+ fieldName := sType.Field(i).Name
+ if !o.Changed(fieldName) {
+ continue
+ }
+ fieldName = strings.ToLower(fieldName)
+ f := s.Field(i)
+ if reflect.Ptr == f.Kind() {
+ f = f.Elem()
+ }
+ switch f.Kind() {
+ case reflect.Bool:
+ params.Set(fieldName, strconv.FormatBool(f.Bool()))
+ case reflect.String:
+ params.Set(fieldName, f.String())
+ case reflect.Int, reflect.Int64:
+ // f.Int() is always an int64
+ params.Set(fieldName, strconv.FormatInt(f.Int(), 10))
+ case reflect.Uint, reflect.Uint64:
+ // f.Uint() is always an uint64
+ params.Set(fieldName, strconv.FormatUint(f.Uint(), 10))
+ case reflect.Slice:
+ typ := reflect.TypeOf(f.Interface()).Elem()
+ switch typ.Kind() {
+ case reflect.String:
+ sl := f.Slice(0, f.Len())
+ s, ok := sl.Interface().([]string)
+ if !ok {
+ return nil, errors.New("failed to convert to string slice")
+ }
+ for _, val := range s {
+ params.Add(fieldName, val)
+ }
+ default:
+ return nil, errors.Errorf("unknown slice type %s", f.Kind().String())
+ }
+ case reflect.Map:
+ lowerCaseKeys := make(map[string][]string)
+ iter := f.MapRange()
+ for iter.Next() {
+ lowerCaseKeys[iter.Key().Interface().(string)] = iter.Value().Interface().([]string)
+
+ }
+ s, err := json.MarshalToString(lowerCaseKeys)
+ if err != nil {
+ return nil, err
+ }
+
+ params.Set(fieldName, s)
+ }
+ }
+ return params, nil
+}
diff --git a/pkg/bindings/volumes/volumes.go b/pkg/bindings/volumes/volumes.go
index fe081eb46..60fdd0a23 100644
--- a/pkg/bindings/volumes/volumes.go
+++ b/pkg/bindings/volumes/volumes.go
@@ -114,3 +114,16 @@ func Remove(ctx context.Context, nameOrID string, options *RemoveOptions) error
}
return response.Process(nil)
}
+
+// Exists returns true if a given volume exists
+func Exists(ctx context.Context, nameOrID string, options *ExistsOptions) (bool, error) {
+ conn, err := bindings.GetClient(ctx)
+ if err != nil {
+ return false, err
+ }
+ response, err := conn.DoRequest(nil, http.MethodGet, "/volumes/%s/exists", nil, nil, nameOrID)
+ if err != nil {
+ return false, err
+ }
+ return response.IsSuccess(), nil
+}
diff --git a/pkg/domain/entities/engine_container.go b/pkg/domain/entities/engine_container.go
index 7b43ac961..39bda1d72 100644
--- a/pkg/domain/entities/engine_container.go
+++ b/pkg/domain/entities/engine_container.go
@@ -86,6 +86,7 @@ type ContainerEngine interface {
Unshare(ctx context.Context, args []string) error
Version(ctx context.Context) (*SystemVersionReport, error)
VolumeCreate(ctx context.Context, opts VolumeCreateOptions) (*IDOrNameResponse, error)
+ VolumeExists(ctx context.Context, namesOrId string) (*BoolReport, error)
VolumeInspect(ctx context.Context, namesOrIds []string, opts InspectOptions) ([]*VolumeInspectReport, []error, error)
VolumeList(ctx context.Context, opts VolumeListOptions) ([]*VolumeListReport, error)
VolumePrune(ctx context.Context, options VolumePruneOptions) ([]*reports.PruneReport, error)
diff --git a/pkg/domain/infra/abi/volumes.go b/pkg/domain/infra/abi/volumes.go
index 823605052..f15aa2d14 100644
--- a/pkg/domain/infra/abi/volumes.go
+++ b/pkg/domain/infra/abi/volumes.go
@@ -153,3 +153,12 @@ func (ic *ContainerEngine) VolumeList(ctx context.Context, opts entities.VolumeL
}
return reports, nil
}
+
+// VolumeExists check if a given volume name exists
+func (ic *ContainerEngine) VolumeExists(ctx context.Context, nameOrID string) (*entities.BoolReport, error) {
+ exists, err := ic.Libpod.HasVolume(nameOrID)
+ if err != nil {
+ return nil, err
+ }
+ return &entities.BoolReport{Value: exists}, nil
+}
diff --git a/pkg/domain/infra/tunnel/volumes.go b/pkg/domain/infra/tunnel/volumes.go
index f21336828..ffd2c1d35 100644
--- a/pkg/domain/infra/tunnel/volumes.go
+++ b/pkg/domain/infra/tunnel/volumes.go
@@ -80,3 +80,14 @@ func (ic *ContainerEngine) VolumeList(ctx context.Context, opts entities.VolumeL
options := new(volumes.ListOptions).WithFilters(opts.Filter)
return volumes.List(ic.ClientCtx, options)
}
+
+// VolumeExists checks if the given volume exists
+func (ic *ContainerEngine) VolumeExists(ctx context.Context, nameOrID string) (*entities.BoolReport, error) {
+ exists, err := volumes.Exists(ic.ClientCtx, nameOrID, nil)
+ if err != nil {
+ return nil, err
+ }
+ return &entities.BoolReport{
+ Value: exists,
+ }, nil
+}