95 lines
3.3 KiB
Go
95 lines
3.3 KiB
Go
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package main
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import (
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"fmt"
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"os"
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"os/exec"
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"path"
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"github.com/hpcng/warewulf/internal/pkg/assets"
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)
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const LocalStateDir = "/var/warewulf"
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func vnfsBuild(vnfsPath string) {
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fmt.Printf("BUILDING VNFS: %s\n", vnfsPath)
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if _, err := os.Stat(vnfsPath); err == nil {
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// TODO: Build VNFS to temporary file and move to real location when complete atomically
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// TODO: Check time stamps of sourcedir and build file to see if we need to rebuild or skip
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cmd := fmt.Sprintf("cd %s; find . | cpio --quiet -o -H newc | gzip -c > \"%s/provision/bases/%s.img.gz\"", vnfsPath, LocalStateDir, path.Base(vnfsPath))
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err := exec.Command("/bin/sh", "-c", cmd).Run()
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if err != nil {
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fmt.Printf("%s", err)
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}
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} else {
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fmt.Printf("SKIPPING VNFS: (bad path) %s\n", vnfsPath)
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}
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}
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func main(){
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if len(os.Args) < 2 {
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fmt.Printf("USAGE: %s [vnfs/kernel/overlays/all]\n", os.Args[0])
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return
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}
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if os.Args[1] == "vnfs" {
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if len(os.Args) >= 3 {
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vnfsBuild(os.Args[3])
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} else {
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for _, vnfs := range assets.FindAllVnfs() {
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vnfsBuild(vnfs)
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}
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}
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} else if os.Args[1] == "kernel" {
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for _, kernelVers := range assets.FindAllKernels() {
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kernelSource := fmt.Sprintf("/boot/vmlinuz-%s", kernelVers)
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// TODO: Check time stamps of source and dests to see if we need to rebuild or skip
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if _, err := os.Stat(kernelSource); err == nil {
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kernelDestination := fmt.Sprintf("%s/provision/kernels/vmlinuz-%s", LocalStateDir, kernelVers)
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fmt.Printf("SETUP KERNEL: %s (%s)\n", kernelSource, kernelDestination)
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err := exec.Command("cp", kernelSource, kernelDestination).Run()
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if err != nil {
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fmt.Printf("%s", err)
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}
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kernelMods := fmt.Sprintf("/lib/modules/%s", kernelVers)
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if _, err := os.Stat(kernelMods); err == nil {
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fmt.Printf("BUILDING MODS: %s\n", kernelMods)
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cmd := fmt.Sprintf("find %s | cpio --quiet -o -H newc -F \"%s/provision/kernels/kmods-%s.img\"", kernelMods, LocalStateDir, kernelVers)
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err := exec.Command("/bin/sh", "-c", cmd).Run()
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if err != nil {
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fmt.Printf("OUTPUT: %s", err)
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}
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}
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}
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}
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} else if os.Args[1] == "overlay" {
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fmt.Printf("note: This needs to create an overlay for each node with macro expansions\n")
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for _, node := range assets.FindAllNodes() {
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overlayDir := fmt.Sprintf("/etc/warewulf/overlays/%s", node.Overlay)
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if _, err := os.Stat(overlayDir); err == nil {
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cmd := fmt.Sprintf("cd %s; find . | cpio --quiet -o -H newc | gzip -c > \"%s/provision/overlays/%s.img\"", overlayDir, LocalStateDir, node.Fqdn)
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fmt.Printf("BUILDING OVERLAY: %s\n", node.Fqdn)
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err := exec.Command("/bin/sh", "-c", cmd).Run()
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if err != nil {
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fmt.Printf("%s", err)
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}
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} else {
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fmt.Printf("SKIPPING OVERLAY: (bad path) %s\n", overlayDir)
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}
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}
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}
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}
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