e80c639b11
Supports leaving booleans unspecified in YAML. Boolean methods allow the templates to continue using previous names for boolean values. Signed-off-by: Jonathon Anderson <janderson@ciq.com>
124 lines
2.4 KiB
Go
124 lines
2.4 KiB
Go
package warewulfd
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import (
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"fmt"
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"log/syslog"
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"os"
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"os/exec"
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"strconv"
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"syscall"
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"time"
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"github.com/pkg/errors"
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warewulfconf "github.com/warewulf/warewulf/internal/pkg/config"
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"github.com/warewulf/warewulf/internal/pkg/util"
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"github.com/warewulf/warewulf/internal/pkg/wwlog"
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)
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const (
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WAREWULFD_PIDFILE = "/var/run/warewulfd.pid"
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WAREWULFD_LOGFILE = "/var/log/warewulfd.log"
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)
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var loginit bool
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// allow to run without daemon for tests
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var nodaemon bool
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func init() {
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nodaemon = false
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}
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// run without daemon
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func SetNoDaemon() {
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nodaemon = true
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}
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func DaemonFormatter(logLevel int, rec *wwlog.LogRecord) string {
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return "[" + rec.Time.Format(time.UnixDate) + "] " + wwlog.DefaultFormatter(logLevel, rec)
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}
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func DaemonInitLogging() error {
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if loginit {
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return nil
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}
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wwlog.SetLogFormatter(DaemonFormatter)
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level_str, ok := os.LookupEnv("WAREWULFD_LOGLEVEL")
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if ok {
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level, err := strconv.Atoi(level_str)
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if err == nil {
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wwlog.SetLogLevel(level)
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}
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} else {
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wwlog.SetLogLevel(wwlog.INFO)
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}
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conf := warewulfconf.Get()
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if conf.Warewulf.Syslog() {
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wwlog.Debug("Changing log output to syslog")
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logwriter, err := syslog.New(syslog.LOG_NOTICE, "warewulfd")
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if err != nil {
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return fmt.Errorf("Could not create syslog writer: %w", err)
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}
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wwlog.SetLogFormatter(wwlog.DefaultFormatter)
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wwlog.SetLogWriter(logwriter)
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}
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loginit = true
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return nil
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}
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func DaemonStatus() error {
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if nodaemon {
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return nil
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}
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if !util.IsFile(WAREWULFD_PIDFILE) {
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return errors.New("Warewulf server is not running")
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}
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dat, err := os.ReadFile(WAREWULFD_PIDFILE)
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if err != nil {
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return fmt.Errorf("could not read Warewulfd PID file: %w", err)
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}
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pid, _ := strconv.Atoi(string(dat))
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process, err := os.FindProcess(pid)
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if err != nil {
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return fmt.Errorf("failed to find running PID: %w", err)
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} else {
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err := process.Signal(syscall.Signal(0))
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if err != nil {
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return fmt.Errorf("failed to send process SIGCONT: %w", err)
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} else {
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wwlog.Serv("Warewulf server is running at PID: %d", pid)
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}
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}
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return nil
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}
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func DaemonReload() error {
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if nodaemon {
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return nil
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}
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cmd := exec.Command("/usr/sbin/service", "warewulfd", "reload")
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err := cmd.Start()
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if err != nil {
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return fmt.Errorf("failed to reload warewulfd: %w", err)
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}
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err = cmd.Wait()
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if err != nil {
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return fmt.Errorf("failed to reload warewulfd: %w", err)
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}
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return nil
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}
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