func destroyCmdRun(cmd *cobra.Command, args []string) {
// requires root
if !core.IsRoot() {
gologit.Fatalf("Must be root to destroy\n")
}
jail, err := core.FindJail(args[0])
if err != nil {
gologit.Fatalf("Jail '%s' not found!\n", args[0])
}
if jail.IsRunning() {
gologit.Fatalf("Jail is running. Shutdown first.\n")
}
propertyList := []string{
"mountpoint",
"org.freebsd.iocage:type",
}
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing jails"),
"list", "-H", "-o", strings.Join(propertyList, ","), jail.Path))
if len(lines) < 1 {
gologit.Fatalf("No output from property fetch\n")
}
prop_mountpoint := removeDash(lines[0][0])
prop_type := removeDash(lines[0][1])
if prop_type != "thickjail" {
gologit.Fatalf("Type is not thickjail.\nI don't know how to handle this yet.\nGiving up!")
}
fmt.Printf("Ready to remove jail: %s (%s)\n", jail.HostUUID, jail.Tag)
fmt.Print("Are you sure [yN]? ")
var response string
_, err = fmt.Scanln(&response)
if err != nil {
if err.Error() == "unexpected newline" {
os.Exit(0)
}
gologit.Fatalf("%s", err)
}
if !force {
response = strings.ToLower(strings.TrimSpace(response))
if len(response) != 1 || response[0] != 'y' {
return
}
}
fmt.Printf("Destroying: %s (%s)\n", jail.HostUUID, jail.Tag)
core.ZFSMust(
fmt.Errorf("Error destroying jail"),
"destroy", "-fr", jail.Path)
os.RemoveAll(prop_mountpoint)
}
func snapremoveCmdRun(cmd *cobra.Command, args []string) {
// requires root
if !core.IsRoot() {
gologit.Fatalf("Must be root to snapremove\n")
}
jail, err := core.FindJail(args[0])
if err != nil {
gologit.Fatalf("No jail found by '%s'\n", args[0])
}
matchers := args[1:]
gologit.Debugf("matchers: %#v\n", matchers)
zfsArgs := []string{"list", "-Hrt", "snapshot",
"-o", "name", "-d2", jail.Path}
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing snapshots"),
zfsArgs...))
rmlist := []string{}
for _, line := range lines {
if len(line) == 0 || len(line[0]) == 0 {
continue
}
snapname := strings.SplitN(line[0], "@", 2)[1]
gologit.Debugf("source snapname: %#v\n", snapname)
for _, m := range matchers {
if snapremoveRegex {
matched, err := regexp.MatchString(m, snapname)
if err != nil {
gologit.Fatalf("Regex error: %s", err)
}
if matched {
rmlist = append(rmlist, line[0])
continue
}
} else {
if m == snapname {
rmlist = append(rmlist, line[0])
continue
}
}
}
}
gologit.Debugf("match list: %#v\n", rmlist)
for _, snap := range rmlist {
fmt.Printf("Removing snapshot: %s\n", strings.SplitN(snap, "@", 2)[1])
core.ZFSMust(
fmt.Errorf("Error removing snapshot"),
"destroy", "-r", snap)
}
}
func execCmdRun(cmd *cobra.Command, args []string) {
// requires root
if !core.IsRoot() {
gologit.Fatalf("Must be root to use exec\n")
}
jail, err := core.FindJail(args[0])
if err != nil {
gologit.Fatalf("No jail found by '%s'\n", args[0])
}
if !jail.IsRunning() {
gologit.Fatalf("Jail is not running!\n")
}
// get exec fib property
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing jails"),
"list", "-H",
"-o", "org.freebsd.iocage:login_flags,org.freebsd.iocage:exec_fib",
jail.Path))
execFib := lines[0][1]
jexec := []string{}
if execFib != "0" {
jexec = append(jexec, "/usr/sbin/setfib", execFib)
}
jexec = append(jexec, "/usr/sbin/jexec")
if hostUser != "" {
jexec = append(jexec, "-u", hostUser)
}
if jailUser != "" {
jexec = append(jexec, "-U", jailUser)
}
jexec = append(jexec, fmt.Sprintf("ioc-%s", jail.HostUUID))
jexec = append(jexec, args[1:]...)
// set a default path
environ := []string{
"PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin",
}
// set a term from caller
environ = append(environ, fmt.Sprintf("TERM=%s", os.Getenv("TERM")))
gologit.Debugf("%#s\n", jexec)
execErr := syscall.Exec(jexec[0], jexec, environ)
if execErr != nil {
gologit.Fatal(execErr)
}
}
func rollbackCmdRun(cmd *cobra.Command, args []string) {
// requires root
if !core.IsRoot() {
gologit.Fatalf("Must be root to rollback\n")
}
jail, err := core.FindJail(args[0])
if err != nil {
gologit.Fatalf("No jail found by '%s'\n", args[0])
}
snapname := strings.TrimLeft(args[1], "@")
// get FS's
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing jails"),
"list", "-Hr", "-o", "name", path.Join(jail.Path, "root")))
if len(lines) < 1 {
gologit.Fatalf("No datasets at jailpath!\n")
}
snapshots := []string{}
for _, line := range lines {
out := core.ZFSMust(
fmt.Errorf("Error listing snapshots"),
"list", "-Ht", "snapshot", "-o", "name", "-d1",
fmt.Sprintf("%s@%s", line[0], snapname))
if len(out) != 0 {
snapshots = append(snapshots, out)
}
}
if len(snapshots) == 0 {
gologit.Fatalln("Snapshot '%s' not found!", snapname)
}
for _, snapshot := range snapshots {
i := strings.LastIndex(snapshot, "@")
elemName := snapshot[:i]
j := strings.LastIndex(snapshot, "/")
elemName = elemName[j:]
fmt.Printf("* Rolling back jail dataset '%s' to '@%s'\n",
elemName, snapname)
core.ZFSMust(
fmt.Errorf("Error rolling back jail"),
"rollback", "-r", snapshot)
}
}
func snaplistCmdRun(cmd *cobra.Command, args []string) {
jail, err := core.FindJail(args[0])
if err != nil {
gologit.Fatalf("No jail found by '%s'\n", args[0])
}
zfsArgs := []string{"list", "-Hrt", "snapshot",
"-o", "name,creation,used,referenced", "-d2"}
if ParsableValues {
zfsArgs = append(zfsArgs, "-p")
}
zfsArgs = append(zfsArgs, jail.Path)
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing snapshots"),
zfsArgs...))
gologit.Debugf("%#v", lines)
if len(lines) == 0 || len(lines[0]) == 0 || len(lines[0][0]) == 0 {
return
}
var rxmatch *regexp.Regexp
if snaplistRegex != "" {
rxmatch, err = regexp.Compile(snaplistRegex)
if err != nil {
gologit.Fatalf("Bad regex: %s", err)
}
}
outputHeaders := []string{"name", "created", "rsize", "used"}
wf := core.NewOutputWriter(outputHeaders, MachineOutput)
for _, line := range lines {
if len(line) < 4 {
continue
}
snapname := strings.SplitN(line[0], "@", 2)[1]
if rxmatch != nil && !rxmatch.MatchString(snapname) {
continue
}
fmt.Fprintf(wf, "%s\t%s\t%s\t%s\n", snapname, line[1], line[2], line[3])
}
wf.Flush()
}
func stopCmdRun(cmd *cobra.Command, args []string) {
// requires root
if !core.IsRoot() {
gologit.Fatalf("Must be root to stop\n")
}
jail, err := core.FindJail(args[0])
if err != nil {
gologit.Fatalf("No jail found by '%s'\n", args[0])
}
if !jail.IsRunning() {
gologit.Fatalf("Jail is not running!\n")
}
propertyList := []string{
"mountpoint",
"org.freebsd.iocage:type",
"org.freebsd.iocage:tag",
"org.freebsd.iocage:prestop",
"org.freebsd.iocage:exec_stop",
"org.freebsd.iocage:poststop",
"org.freebsd.iocage:vnet",
"org.freebsd.iocage:ip4",
}
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing properties"),
"list", "-H", "-o", strings.Join(propertyList, ","), jail.Path))
if len(lines) < 1 {
gologit.Fatalf("No output from property fetch\n")
}
prop_mountpoint := removeDash(lines[0][0])
//prop_type := removeDash(lines[0][1])
prop_tag := removeDash(lines[0][2])
prop_prestop := removeDash(lines[0][3])
prop_exec_stop := removeDash(lines[0][4])
prop_poststop := removeDash(lines[0][5])
prop_vnet := removeDash(lines[0][6])
prop_ip4 := removeDash(lines[0][7])
// set a default path
environ := []string{
"PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin",
}
fmt.Printf("* Stopping %s (%s)\n", jail.HostUUID, prop_tag)
if prop_prestop != "" {
fmt.Printf(" + Running pre-stop\n")
preStop := core.SplitFieldsQuoteSafe(prop_prestop)
excmd := exec.Command(preStop[0], preStop[1:]...)
excmd.Env = environ
err := excmd.Run()
if err != nil {
gologit.Printf("%s\n", err)
}
}
fmt.Printf(" + Stopping services\n")
jexec := []string{"/usr/sbin/jexec"}
jexec = append(jexec, fmt.Sprintf("ioc-%s", jail.HostUUID))
jexec = append(jexec, core.SplitFieldsQuoteSafe(prop_exec_stop)...)
out, err := exec.Command(jexec[0], jexec[1:]...).CombinedOutput()
gologit.Debugln(string(out))
if err != nil {
gologit.Printf("%s\n", err)
}
if prop_vnet == "on" {
fmt.Printf(" + Tearing down VNET\n")
// stop VNET networking
} else if prop_ip4 != "inherit" {
// stop standard networking (legacy?)
lines := core.SplitOutput(core.ZFSMust(
fmt.Errorf("Error listing jails"),
"list", "-H", "-o", "org.freebsd.iocage:ip4_addr,org.freebsd.iocage:ip6_addr", jail.Path))
for _, ip_config := range lines[0] {
if ip_config == "none" {
continue
}
for _, addr := range strings.Split(ip_config, ",") {
item := strings.Split(addr, "|")
gologit.Debugln("/sbin/ifconfig", item[0], item[1], "-alias")
out, err := exec.Command("/sbin/ifconfig",
item[0], item[1], "-alias").CombinedOutput()
gologit.Debugln(string(out))
if err != nil {
gologit.Printf("%s\n", err)
}
}
}
}
fmt.Printf(" + Removing jail process\n")
jrexec := []string{"/usr/sbin/jail", "-r", fmt.Sprintf("ioc-%s", jail.HostUUID)}
out, err = exec.Command(jrexec[0], jrexec[1:]...).CombinedOutput()
if err != nil {
gologit.Printf("%s\n", err)
}
if prop_poststop != "" {
fmt.Printf(" + Running post-stop\n")
postStop := core.SplitFieldsQuoteSafe(prop_poststop)
excmd := exec.Command(postStop[0], postStop[1:]...)
excmd.Env = environ
err := excmd.Run()
if err != nil {
gologit.Printf("%s\n", err)
}
}
fmt.Printf(" + Tearing down mounts\n")
umountCmd("-afvF", path.Join(prop_mountpoint, "fstab"))
umountCmd(path.Join(prop_mountpoint, "root/dev/fd"))
umountCmd(path.Join(prop_mountpoint, "root/dev"))
umountCmd(path.Join(prop_mountpoint, "root/proc"))
// TODO: basejail here?
// TODO: rctl stuff here...
}