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https://github.com/kairos-io/kairos-agent.git
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54b6779f94
We should not default to use the underlying OS files and binaries for grub installs as we may be on a takeover scenario in which the underlying OS does not provide the needed files. This moves the grub binary and files to be provided by the source rootfs and moves the grubOptions hook to use the go libraries directly instead of shelling out to another binary Signed-off-by: Itxaka <itxaka@kairos.io>
65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
package hook
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import (
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"github.com/kairos-io/kairos-agent/v2/pkg/config"
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cnst "github.com/kairos-io/kairos-agent/v2/pkg/constants"
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v1 "github.com/kairos-io/kairos-agent/v2/pkg/types/v1"
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"github.com/kairos-io/kairos-agent/v2/pkg/utils"
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"github.com/kairos-io/kairos-sdk/mounts"
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"github.com/kairos-io/kairos-sdk/state"
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"path/filepath"
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)
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type GrubOptions struct{}
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func (b GrubOptions) Run(c config.Config, _ v1.Spec) error {
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if len(c.Install.GrubOptions) == 0 {
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return nil
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}
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c.Logger.Logger.Debug().Msg("Running GrubOptions hook")
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c.Logger.Debugf("Setting grub options: %s", c.Install.GrubOptions)
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err := grubOptions(c, c.Install.GrubOptions)
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if err != nil {
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return err
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}
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c.Logger.Logger.Debug().Msg("Finish GrubOptions hook")
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return nil
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}
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type GrubPostInstallOptions struct{}
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func (b GrubPostInstallOptions) Run(c config.Config, _ v1.Spec) error {
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if len(c.GrubOptions) == 0 {
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return nil
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}
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c.Logger.Logger.Debug().Msg("Running GrubOptions hook")
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c.Logger.Debugf("Setting grub options: %s", c.GrubOptions)
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err := grubOptions(c, c.GrubOptions)
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if err != nil {
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return err
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}
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c.Logger.Logger.Debug().Msg("Finish GrubOptions hook")
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return nil
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}
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// grubOptions sets the grub options in the grubenv file
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// It mounts the OEM partition if not already mounted
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// If its mounted but RO, it remounts it as RW
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func grubOptions(c config.Config, opts map[string]string) error {
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runtime, err := state.NewRuntime()
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if err != nil {
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return err
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}
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defer mounts.Umount(state.PartitionState{Mounted: true, MountPoint: runtime.OEM.MountPoint})
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if !runtime.OEM.Mounted {
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if err := mounts.PrepareWrite(runtime.OEM, cnst.OEMPath); err != nil {
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return err
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}
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}
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err = utils.SetPersistentVariables(filepath.Join(runtime.OEM.MountPoint, "grubenv"), opts, c.Fs)
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if err != nil {
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c.Logger.Logger.Error().Err(err).Msg("Failed to set grub options")
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}
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return err
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}
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