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54ce5f6f7a
The block host volume will still exist even when the blocks are all deleted. Manually deleting block host volume will need another step of unmounting. With this patch we auto-delete the block host volume if there are no blocks. The availablility check of bhv free space is not done within lock, hence there is a possiblity that the available space has changed by the time we decide to create the volume. This patch also fixes the race condition. Signed-off-by: Poornima G <pgurusid@redhat.com>
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
package blockvolume
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import (
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"net/http"
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"sync"
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"github.com/gluster/glusterd2/glusterd2/servers/rest/route"
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"github.com/gluster/glusterd2/pkg/utils"
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"github.com/gluster/glusterd2/plugins/blockvolume/api"
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"github.com/gluster/glusterd2/plugins/blockvolume/hostvol"
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)
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// BlockVolume represents BlockVolume plugin
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type BlockVolume struct {
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hostVolManager hostvol.HostingVolumeManager
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initOnce sync.Once
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}
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// Name returns plugin name
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func (b *BlockVolume) Name() string {
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b.Init()
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return "block-volume"
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}
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// RestRoutes returns list of REST API routes of BlockVolume to register with Glusterd.
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func (b *BlockVolume) RestRoutes() route.Routes {
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b.Init()
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return route.Routes{
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{
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Name: "BlockCreate",
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Method: http.MethodPost,
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Pattern: "/blockvolumes/{provider}",
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Version: 1,
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RequestType: utils.GetTypeString((*api.BlockVolumeCreateRequest)(nil)),
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ResponseType: utils.GetTypeString((*api.BlockVolumeCreateResp)(nil)),
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HandlerFunc: b.CreateVolume,
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},
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{
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Name: "BlockDelete",
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Method: http.MethodDelete,
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Pattern: "/blockvolumes/{provider}/{name}",
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Version: 1,
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HandlerFunc: b.DeleteVolume,
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},
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{
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Name: "BlockList",
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Method: http.MethodGet,
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Pattern: "/blockvolumes/{provider}",
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Version: 1,
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HandlerFunc: b.ListBlockVolumes,
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},
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{
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Name: "BlockGet",
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Method: http.MethodGet,
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Pattern: "/blockvolumes/{provider}/{name}",
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Version: 1,
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HandlerFunc: b.GetBlockVolume,
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},
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}
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}
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// RegisterStepFuncs registers all step functions
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func (*BlockVolume) RegisterStepFuncs() {
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hostvol.RegisterBHVstepFunctions()
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}
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// Init will initialize the underlying HostVolume manager only once.
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// calling it multiple times will do nothing
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func (b *BlockVolume) Init() {
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b.initOnce.Do(func() {
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b.hostVolManager = hostvol.NewGlusterVolManager()
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})
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}
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