Created
December 6, 2017 17:50
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Issue daemon-reload and install systemd unit files from golang
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package: systemd-installer | |
import: | |
- package: github.com/coreos/go-systemd | |
version: v15 | |
- package: github.com/godbus/dbus | |
version: v4.0.0 |
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package main | |
import ( | |
"fmt" | |
"github.com/coreos/go-systemd/dbus" | |
"log" | |
"os" | |
) | |
func main() { | |
var err error | |
var conn *dbus.Conn | |
conn, err = dbus.NewSystemdConnection() | |
defer func() { | |
conn.Close() | |
}() | |
var unitFiles []string = os.Args[1:len(os.Args)] | |
if len(unitFiles) == 0 { | |
fmt.Fprintf(os.Stderr, "Hey, what's with 0 unitFiles; argv=%v", os.Args) | |
return | |
} | |
fmt.Printf("Issuing daemon-reload to pick up unitFiles=%v\n", unitFiles) | |
if err = conn.Reload(); err != nil { | |
log.Panicln("Unable to `systemd daemon-reload`", err) | |
} | |
fmt.Println("daemon-reload OK") | |
didInstallAction, changes, enableErr := conn.EnableUnitFiles(unitFiles, false, false) | |
if enableErr != nil { | |
log.Panicf("Unable to enable your Unit Files: files=%v err=%v", unitFiles, enableErr) | |
} | |
if didInstallAction { | |
fmt.Println("Enabling those units successfully Install-ed them") | |
} | |
if len(changes) == 0 { | |
fmt.Fprintf(os.Stderr, "So sad, enabling unitFiles=%v appears to have changed nothing\n", unitFiles) | |
} else { | |
for _, ch := range changes { | |
fmt.Printf("Successfully changed type=%s filename=%s destination=%s\n", | |
ch.Type, ch.Filename, ch.Destination) | |
} | |
} | |
fmt.Println("OK") | |
} |
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