mirror of
https://github.com/containerd/containerd.git
synced 2026-11-06 13:27:16 +00:00
Derek McGowan
80ec03fe7e
Correctly handle cases where the mount activation still exists: - If activation is fully activate, then just return already exists and allow the caller to return error or call Info to continue. - If activation is stale or incomplete due to crash during activation, overwrite the identifier and cleanup the incomplete activation during activate. Signed-off-by: Derek McGowan <derek@mcg.dev>
86 lines
4.2 KiB
Go
86 lines
4.2 KiB
Go
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
// Package manager is used to manage mounts in a bolt database, normally
|
|
// backed by a tempfs.
|
|
/*
|
|
Database schema
|
|
|
|
v1
|
|
╘══*namespace*
|
|
├──mounts
|
|
│ ╘══*mount name*
|
|
│ ├──id : <varuint64> - Unique ID for mount (auto incrementing)
|
|
│ ├──createdat : <binary time> - Created at
|
|
│ ├──updatedat : <binary time> - Updated at
|
|
│ ├──lease : <string> - Lease
|
|
│ ├──active
|
|
│ │ ╘══*order*
|
|
│ │ ├──mountedat : <binary time> - Mounted at
|
|
│ │ ├──state : <enum> - (0 - unmounted, 1 - filesystem, 2 - device, 3 - process)
|
|
│ │ ├──type : <string> - Mount type
|
|
│ │ ├──source : <string> - Mount source
|
|
│ │ ├──target : <string> - Mount target (relative to previous mount point)
|
|
│ │ ├──mp : <string> - Mount point for filesystem mount
|
|
│ │ ├──mpg : <bool> - Whether the mount point is auto generated (NOT USED)
|
|
│ │ ├──dev : <string> - Device active for this mount (NOT USED)
|
|
│ │ ├──pid : <int> - Process created for this mount (NOT USED)
|
|
│ │ └──options : <string> - Comma separate options
|
|
│ ├──system
|
|
│ │ ╘══*order*
|
|
│ │ ├──type : <string> - Mount type
|
|
│ │ ├──source : <string> - Mount source
|
|
│ │ ├──target : <string> - Mount target (relative to previous mount point)
|
|
│ │ └──options : <string> - Comma separate options
|
|
│ └──labels
|
|
│ ╘══*key* : <string> - Label value
|
|
├──leases
|
|
│ ╘══*lease id*
|
|
│ ╘══*mount name*: nil
|
|
└──unmountq (CURRENTLY NOT USED, may remove)
|
|
└──*mount name + auto-increment*
|
|
├──type : <string> - Mount type
|
|
├──target : <string> - Path to check && unmount
|
|
├──rm : <bool> - Whether to remove target after unmount
|
|
├──dev : <string> - Device to check before unmount
|
|
├──pid : <int> - Process to check and kill
|
|
├──target : <string> - Path to unmount
|
|
├──state : <enum> - (0 - unmounted, 1 - filesystem, 2 - device, 3 - process)
|
|
└─ order : <int> - Order in which was mounted, unmount high to low
|
|
*/
|
|
package manager
|
|
|
|
var (
|
|
bucketKeyID = []byte("id")
|
|
bucketKeyMounts = []byte("mounts")
|
|
bucketKeyLeases = []byte("leases")
|
|
bucketKeyLease = []byte("lease")
|
|
bucketKeyActive = []byte("active")
|
|
bucketKeySystem = []byte("system")
|
|
bucketKeyType = []byte("type")
|
|
bucketKeySource = []byte("source")
|
|
bucketKeyTarget = []byte("target")
|
|
bucketKeyOptions = []byte("options")
|
|
bucketKeyMountedAt = []byte("mat")
|
|
bucketKeyMountPoint = []byte("mp")
|
|
bucketKeyLabels = []byte("labels")
|
|
|
|
labelGCContainerBackRef = []byte("containerd.io/gc.bref.container")
|
|
labelGCContentBackRef = []byte("containerd.io/gc.bref.content")
|
|
labelGCImageBackRef = []byte("containerd.io/gc.bref.image")
|
|
labelGCSnapBackRef = []byte("containerd.io/gc.bref.snapshot.")
|
|
)
|