mirror of https://github.com/kubernetes/kops.git
76 lines
2.2 KiB
Go
76 lines
2.2 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package model
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import (
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"fmt"
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"k8s.io/kops/upup/pkg/fi"
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"k8s.io/klog/v2"
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"k8s.io/mount-utils"
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utilexec "k8s.io/utils/exec"
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)
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// VolumesBuilder maintains the volume mounting
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type VolumesBuilder struct {
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*NodeupModelContext
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}
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var _ fi.ModelBuilder = &VolumesBuilder{}
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// Build is responsible for handling the mounting additional volumes onto the instance
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func (b *VolumesBuilder) Build(c *fi.ModelBuilderContext) error {
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// @step: check if the instancegroup has any volumes to mount
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if !b.UseVolumeMounts() {
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klog.V(1).Info("Skipping the volume builder, no volumes defined for this instancegroup")
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return nil
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}
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// @step: iterate the volume mounts and attempt to mount the devices
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for _, x := range b.NodeupConfig.VolumeMounts {
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// @check the directory exists, else create it
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if err := b.EnsureDirectory(x.Path); err != nil {
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return fmt.Errorf("failed to ensure the directory: %s, error: %s", x.Path, err)
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}
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m := &mount.SafeFormatAndMount{
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Exec: utilexec.New(),
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Interface: mount.New(""),
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}
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// @check if the device is already mounted
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if found, err := b.IsMounted(m, x.Device, x.Path); err != nil {
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return fmt.Errorf("Failed to check if device: %s is mounted, error: %s", x.Device, err)
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} else if found {
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klog.V(3).Infof("Skipping device: %s, path: %s as already mounted", x.Device, x.Path)
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continue
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}
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klog.Infof("Attempting to format and mount device: %s, path: %s", x.Device, x.Path)
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if err := m.FormatAndMount(x.Device, x.Path, x.Filesystem, x.MountOptions); err != nil {
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klog.Errorf("failed to mount the device: %s on: %s, error: %s", x.Device, x.Path, err)
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return err
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}
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}
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return nil
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}
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