513cebe7b7
* Add Virtual Kubelet provider for VIC Initial virtual kubelet provider for VMware VIC. This provider currently handles creating and starting of a pod VM via the VIC portlayer and persona server. Image store handling via the VIC persona server. This provider currently requires the feature/wolfpack branch of VIC. * Added pod stop and delete. Also added node capacity. Added the ability to stop and delete pod VMs via VIC. Also retrieve node capacity information from the VCH. * Cleanup and readme file Some file clean up and added a Readme.md markdown file for the VIC provider. * Cleaned up errors, added function comments, moved operation code 1. Cleaned up error handling. Set standard for creating errors. 2. Added method prototype comments for all interface functions. 3. Moved PodCreator, PodStarter, PodStopper, and PodDeleter to a new folder. * Add mocking code and unit tests for podcache, podcreator, and podstarter Used the unit test framework used in VIC to handle assertions in the provider's unit test. Mocking code generated using OSS project mockery, which is compatible with the testify assertion framework. * Vendored packages for the VIC provider Requires feature/wolfpack branch of VIC and a few specific commit sha of projects used within VIC. * Implementation of POD Stopper and Deleter unit tests (#4) * Updated files for initial PR
93 lines
2.9 KiB
Go
93 lines
2.9 KiB
Go
// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package fs
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import (
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"os/exec"
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"strings"
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"github.com/docker/docker/pkg/mount"
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"github.com/vmware/vic/pkg/trace"
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)
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// MaxLabelLength is the maximum allowed length of a label for this filesystem
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const MaxLabelLength = 15
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// Ext4 satisfies the Filesystem interface
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type Ext4 struct{}
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func NewExt4() *Ext4 {
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return &Ext4{}
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}
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// Mkfs creates an ext4 fs on the given device and applices the given label
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func (e *Ext4) Mkfs(op trace.Operation, devPath, label string) error {
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defer trace.End(trace.Begin(devPath))
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op.Infof("Creating ext4 filesystem on device %s", devPath)
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// -v is verbose - this is only useful when things go wrong,
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// -F is needed to use the entire disk without prompting
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// we can't use -V as well for fs specific stuff as that prevents it actually being done.
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// #nosec: Subprocess launching with variable
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cmd := exec.Command("/sbin/mkfs.ext4", "-L", label, "-vF", devPath)
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if output, err := cmd.CombinedOutput(); err != nil {
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op.Errorf("vmdk storage driver failed to format disk %s: %s", devPath, err)
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op.Errorf("mkfs output: %s", string(output))
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return err
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}
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op.Debugf("Filesystem created on device %s", devPath)
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return nil
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}
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// Mount mounts an ext4 formatted device at the given path. From the Docker
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// mount pkg, args must in the form arg=val.
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func (e *Ext4) Mount(op trace.Operation, devPath, targetPath string, options []string) error {
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defer trace.End(trace.Begin(devPath))
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op.Infof("Mounting %s to %s", devPath, targetPath)
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return mount.Mount(devPath, targetPath, "ext4", strings.Join(options, ","))
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}
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// Unmount unmounts the disk.
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// path can be a device path or a mount point
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func (e *Ext4) Unmount(op trace.Operation, path string) error {
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defer trace.End(trace.Begin(path))
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op.Infof("Unmounting %s", path)
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return mount.Unmount(path)
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}
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// SetLabel sets the label of an ext4 formated device
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func (e *Ext4) SetLabel(op trace.Operation, devPath, labelName string) error {
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defer trace.End(trace.Begin(devPath))
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// Warn if truncating label
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if len(labelName) > MaxLabelLength {
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op.Debugf("Label truncated to %s", labelName[:MaxLabelLength])
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}
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// #nosec: Subprocess launching with variable
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cmd := exec.Command("/sbin/e2label", devPath, labelName[:MaxLabelLength])
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if output, err := cmd.CombinedOutput(); err != nil {
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op.Errorf("failed to set label %s: %s", devPath, err)
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op.Errorf(string(output))
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return err
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}
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return nil
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}
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