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Pull request: home: imp systemd unit script

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Updates #3579.

Squashed commit of the following:

commit 9bb45127f625d4df2f4df8bd2ca4d6fe83557fc8
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Sep 13 16:57:43 2021 +0300

    all: imp chlog

commit d2285cb6386acc5d6e835f85f118a959a33391e6
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Sep 13 16:41:54 2021 +0300

    home: imp systemd unit script
This commit is contained in:
Ainar Garipov
2021-09-13 17:06:16 +03:00
parent 424f20da98
commit 53f7c0b2df
2 changed files with 26 additions and 7 deletions
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30
internal/home/service.go
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@@ -310,10 +310,15 @@ func configureService(c *service.Config) {
// This key is used to start the job as soon as it has been loaded. For daemons this means execution at boot time, for agents execution at login.
c.Option["RunAtLoad"] = true
// POSIX
// POSIX / systemd
// Redirect StdErr & StdOut to files.
// Redirect stderr and stdout to files. Make sure we always restart.
// Start only once network is up on Linux/systemd.
c.Option["LogOutput"] = true
c.Option["Restart"] = "always"
c.Dependencies = []string{
"After=syslog.target network-online.target",
}
// Use modified service file templates.
c.Option["SystemdScript"] = systemdScript
@@ -368,17 +373,26 @@ var launchdConfig = `<?xml version='1.0' encoding='UTF-8'?>
</plist>
`
// Note: we should keep it in sync with the template from service_systemd_linux.go file
// Add "After=" setting for systemd service file, because we must be started only after network is online
// Set "RestartSec" to 10
// systemdScript is an improved version of the systemd script originally from
// the systemdScript constant in file service_systemd_linux.go in module
// github.com/kardianos/service. The following changes have been made:
//
// 1. The RestartSec setting is set to a lower value of 10 to make sure we
// always restart quickly.
//
// 2. The ExecStartPre setting is added to make sure that the log directory is
// always created to prevent the 209/STDOUT errors.
//
const systemdScript = `[Unit]
Description={{.Description}}
ConditionFileIsExecutable={{.Path|cmdEscape}}
After=syslog.target network-online.target
{{range $i, $dep := .Dependencies}}
{{$dep}} {{end}}
[Service]
StartLimitInterval=5
StartLimitBurst=10
ExecStartPre=mkdir -p /var/log/
ExecStart={{.Path|cmdEscape}}{{range .Arguments}} {{.|cmd}}{{end}}
{{if .ChRoot}}RootDirectory={{.ChRoot|cmd}}{{end}}
{{if .WorkingDirectory}}WorkingDirectory={{.WorkingDirectory|cmdEscape}}{{end}}
@@ -389,7 +403,9 @@ ExecStart={{.Path|cmdEscape}}{{range .Arguments}} {{.|cmd}}{{end}}
StandardOutput=file:/var/log/{{.Name}}.out
StandardError=file:/var/log/{{.Name}}.err
{{- end}}
Restart=always
{{if gt .LimitNOFILE -1 }}LimitNOFILE={{.LimitNOFILE}}{{end}}
{{if .Restart}}Restart={{.Restart}}{{end}}
{{if .SuccessExitStatus}}SuccessExitStatus={{.SuccessExitStatus}}{{end}}
RestartSec=10
EnvironmentFile=-/etc/sysconfig/{{.Name}}