func LoadConfig(filepath string) {
if _, err := os.Stat(filepath); os.IsNotExist(err) {
gologit.Fatalf("%s not present or not readable", filepath)
}
buffer := &bytes.Buffer{}
buffer.WriteString("[main]\n")
f, err := os.Open(filepath)
if err != nil {
gologit.Printf("Error reading config file %s", filepath)
gologit.Fatal(err)
}
defer f.Close()
_, err = buffer.ReadFrom(f)
if err != nil {
gologit.Printf("Error reading config file %s", filepath)
gologit.Fatal(err)
}
err = gcfg.ReadInto(&Config, buffer)
if err != nil {
gologit.Printf("Error parsing config file %s", filepath)
gologit.Fatal(err)
}
}
func restartCmdRun(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")
}
// create file
f, err := os.OpenFile(jail.GetLogPath(), os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
gologit.Fatal(err)
}
defer f.Close()
props := jail.GetProperties()
jexec := []string{fmt.Sprintf("ioc-%s", jail.HostUUID)}
jexec_stop := append(jexec, core.SplitFieldsQuoteSafe(props.GetIOC("exec_stop"))...)
excmd := exec.Command("/usr/sbin/jexec", jexec_stop...)
excmd.Stdout = f
excmd.Stderr = f
err = excmd.Run()
if err != nil {
gologit.Printf("%s\n", err)
}
jexec_start := append(jexec, core.SplitFieldsQuoteSafe(props.GetIOC("exec_start"))...)
excmd = exec.Command("/usr/sbin/jexec", jexec_start...)
excmd.Stdout = f
excmd.Stderr = f
err = excmd.Run()
if err != nil {
gologit.Printf("%s\n", err)
}
// set last_started property
t := time.Now()
core.ZFSMust(
fmt.Errorf("Error setting property"), "set",
fmt.Sprintf(
"org.freebsd.iocage:last_started=%s",
t.Format("2006-01-02_15:04:05")),
jail.Path)
}
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...
}
func startCmdRun(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 already running!\n")
}
props := jail.GetProperties()
// set a default path
environ := []string{
"PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin",
}
fmt.Printf("* Starting %s (%s)\n", jail.HostUUID, jail.Tag)
// mount procfs
if props.GetIOC("mount_procfs") == "1" {
fmt.Printf(" + mounting procfs\n")
procpath := path.Join(jail.Mountpoint, "root/proc")
excmd := exec.Command("/sbin/mount", "-t", "procfs", "proc", procpath)
excmd.Env = environ
err := excmd.Run()
if err != nil {
gologit.Printf("%s\n", err)
}
}
// prepare jail zfs dataset if enabled
if props.GetIOC("jail_zfs") == "on" {
fmt.Printf(" + jailing zfs dataset\n")
setprops := core.ZFSProperties{
"org.freebsd.iocage:allow_mount": "1",
"org.freebsd.iocage:allow_mount_zfs": "1",
"org.freebsd.iocage:enforce_statfs": "1",
}
jail.SetProperties(setprops)
core.ZFSMust(
fmt.Errorf("Error setting property"),
"set", "jailed=on",
path.Join(core.GetZFSRootPath(), props.GetIOC("jail_zfs_dataset")))
}
// copy resolv conf
err = core.CopyFile(
"/etc/resolv.conf",
path.Join(jail.Mountpoint, "root/etc/resolv.conf"))
if err != nil {
gologit.Printf("%s\n", err)
}
// create log file
logfile, err := os.OpenFile(jail.GetLogPath(), os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
gologit.Fatal(err)
}
defer logfile.Close()
file, err := ioutil.TempFile(os.TempDir(), "rollcage.")
defer os.Remove(file.Name())
jailConfig := jail.JailConfig()
gologit.Debugln(jailConfig)
file.WriteString(jailConfig)
file.Close()
excmd := exec.Command(
"/usr/sbin/jail",
"-f", file.Name(),
"-c", fmt.Sprintf("ioc-%s", jail.HostUUID))
excmd.Stdout = logfile
excmd.Stderr = logfile
err = excmd.Run()
if err != nil {
gologit.Fatal(err)
}
// rctl_limits?
// cpuset?
// jail zfs
if props.GetIOC("jail_zfs") == "on" {
core.ZFSMust(
fmt.Errorf("Error setting property"),
"jail", fmt.Sprintf("ioc-%s", jail.HostUUID),
path.Join(core.GetZFSRootPath(), props.GetIOC("jail_zfs_dataset")))
out, err := exec.Command(
"/usr/sbin/jexec",
fmt.Sprintf("ioc-%s", jail.HostUUID),
"zfs", "mount", "-a").CombinedOutput()
gologit.Debugln(string(out))
if err != nil {
gologit.Printf("%s\n", err)
}
}
// set last_started property
t := time.Now()
core.ZFSMust(
fmt.Errorf("Error setting property"), "set",
fmt.Sprintf(
"org.freebsd.iocage:last_started=%s",
t.Format("2006-01-02_15:04:05")),
jail.Path)
}