74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
package kernel
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import (
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"fmt"
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"github.com/hpcng/warewulf/internal/pkg/assets"
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"github.com/hpcng/warewulf/internal/pkg/config"
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"github.com/hpcng/warewulf/internal/pkg/util"
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"github.com/hpcng/warewulf/internal/pkg/wwlog"
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"os"
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"os/exec"
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"path"
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)
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const kernelProvisionPath = "/provision/kernel/"
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func Build(nodeList []assets.NodeInfo, force bool) error {
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set := make(map[string]int)
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wwlog.Printf(wwlog.INFO, "Importing Kernels:\n")
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wwlog.SetIndent(4)
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for _, node := range nodeList {
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if node.KernelVersion != "" {
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set[node.KernelVersion] ++
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wwlog.Printf(wwlog.DEBUG, "Node '%s' has KernelVersion '%s'\n", node.Fqdn, node.KernelVersion)
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}
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}
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for kernelVersion := range set {
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kernelImage := "/boot/vmlinuz-"+kernelVersion
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kernelDrivers := "/lib/modules/"+kernelVersion
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kernelDestination := path.Join(config.LocalStateDir, kernelProvisionPath, "vmlinuz-"+kernelVersion)
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driversDestination := path.Join(config.LocalStateDir, kernelProvisionPath, "kmods-"+kernelVersion+".img")
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// Create the kernel destination path just in case it doesn't exist
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os.MkdirAll(path.Join(config.LocalStateDir, kernelProvisionPath), 0755)
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if _, err := os.Stat(kernelImage); err == nil {
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if util.PathIsNewer(kernelImage, kernelDestination) && force == false {
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wwlog.Printf(wwlog.INFO, "%-35s: Skipping, kernel is current\n", "vmlinuz-"+kernelVersion)
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} else {
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err := util.CopyFile(kernelImage, kernelDestination)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Failed copying kernel image: %s\n", err)
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continue
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}
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wwlog.Printf(wwlog.INFO, "%-35s: Done\n", "vmlinuz-"+kernelVersion)
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}
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}
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if _, err := os.Stat(kernelDrivers); err == nil {
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if util.PathIsNewer(kernelDrivers, driversDestination) && force == false {
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wwlog.Printf(wwlog.INFO, "%-35s: Skipping, drivers are current\n", "kmods-"+kernelVersion+".img")
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} else {
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cmd := fmt.Sprintf("cd /; find .%s | cpio --quiet -o -H newc -F \"%s\"", kernelDrivers, driversDestination)
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err := exec.Command("/bin/sh", "-c", cmd).Run()
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Could not generate kernel driver overlay: %s\n", err)
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continue
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}
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wwlog.Printf(wwlog.INFO, "%-35s: Done\n", "kmods-"+kernelVersion+".img")
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}
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}
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}
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wwlog.SetIndent(0)
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return nil
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} |