Add proper support for systemd

There wasn't a great way to start the gateway with systemd so that it can run in the background and be managed by systemd. This pr addeds a install sub command that decouples install from running. The goal was so you can run something like this in your IaC:

```infisical gateway install --token=<> --domain=<> && systemctl start infisical-gateway```

cli/go.mod

@@ -20,6 +20,7 @@ require (
 	github.com/muesli/reflow v0.3.0
 	github.com/muesli/roff v0.1.0
 	github.com/petar-dambovaliev/aho-corasick v0.0.0-20211021192214-5ab2d9280aa9
+	github.com/pion/dtls/v3 v3.0.4
 	github.com/pion/logging v0.2.3
 	github.com/pion/turn/v4 v4.0.0
 	github.com/posthog/posthog-go v0.0.0-20221221115252-24dfed35d71a
@@ -90,7 +91,6 @@ require (
 	github.com/oklog/ulid v1.3.1 // indirect
 	github.com/onsi/ginkgo/v2 v2.22.2 // indirect
 	github.com/pelletier/go-toml v1.9.3 // indirect
-	github.com/pion/dtls/v3 v3.0.4 // indirect
 	github.com/pion/randutil v0.1.0 // indirect
 	github.com/pion/stun/v3 v3.0.0 // indirect
 	github.com/pion/transport/v3 v3.0.7 // indirect

cli/go.sum

@@ -484,8 +484,6 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20211215165025-cf75a172585e/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.35.0 h1:b15kiHdrGCHrP6LvwaQ3c03kgNhhiMgvlhxHQhmg2Xs=
-golang.org/x/crypto v0.35.0/go.mod h1:dy7dXNW32cAb/6/PRuTNsix8T+vJAqvuIy5Bli/x0YQ=
 golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
 golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -592,8 +590,6 @@ golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.11.0 h1:GGz8+XQP4FvTTrjZPzNKTMFtSXH80RAzG+5ghFPgK9w=
-golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
 golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -644,13 +640,9 @@ golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
 golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.29.0 h1:L6pJp37ocefwRRtYPKSWOWzOtWSxVajvz2ldH/xi3iU=
-golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
 golang.org/x/term v0.30.0 h1:PQ39fJZ+mfadBm0y5WlL4vlM7Sx1Hgf13sMIY2+QS9Y=
 golang.org/x/term v0.30.0/go.mod h1:NYYFdzHoI5wRh/h5tDMdMqCqPJZEuNqVR5xJLd/n67g=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -662,8 +654,6 @@ golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
-golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
 golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=

cli/packages/cmd/gateway.go

@@ -4,7 +4,9 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"os/exec"
 	"os/signal"
+	"runtime"
 	"syscall"
 	"time"
 
@@ -16,9 +18,11 @@ import (
 )
 
 var gatewayCmd = &cobra.Command{
-	Example:               `infisical gateway`,
-	Short:                 "Used to infisical gateway",
 	Use:                   "gateway",
+	Short:                 "Run the Infisical gateway or manage its systemd service",
+	Long:                  "Run the Infisical gateway in the foreground or manage its systemd service installation. Use 'gateway install' to set up the systemd service.",
+	Example:               `infisical gateway --token=<token>
+  sudo infisical gateway install --token=<token> --domain=<domain>`,
 	DisableFlagsInUseLine: true,
 	Args:                  cobra.NoArgs,
 	Run: func(cmd *cobra.Command, args []string) {
@@ -31,16 +35,6 @@ var gatewayCmd = &cobra.Command{
 			util.HandleError(fmt.Errorf("Token not found"))
 		}
 
-		domain, err := cmd.Flags().GetString("domain")
-		if err != nil {
-			util.HandleError(err, "Unable to parse domain flag")
-		}
-
-		// Try to install systemd service if possible
-		if err := gateway.InstallGatewaySystemdService(token.Token, domain); err != nil {
-			log.Warn().Msgf("Failed to install systemd service: %v", err)
-		}
-
 		Telemetry.CaptureEvent("cli-command:gateway", posthog.NewProperties().Set("version", util.CLI_VERSION))
 
 		sigCh := make(chan os.Signal, 1)
@@ -110,6 +104,50 @@ var gatewayCmd = &cobra.Command{
 	},
 }
 
+var gatewayInstallCmd = &cobra.Command{
+	Use:                   "install",
+	Short:                 "Install and enable systemd service for the gateway (requires sudo)",
+	Long:                  "Install and enable systemd service for the gateway. Must be run with sudo on Linux.",
+	Example:               "sudo infisical gateway install --token=<token> --domain=<domain>",
+	DisableFlagsInUseLine: true,
+	Args:                  cobra.NoArgs,
+	Run: func(cmd *cobra.Command, args []string) {
+		if runtime.GOOS != "linux" {
+			util.HandleError(fmt.Errorf("systemd service installation is only supported on Linux"))
+		}
+
+		if os.Geteuid() != 0 {
+			util.HandleError(fmt.Errorf("systemd service installation requires root/sudo privileges"))
+		}
+
+		token, err := util.GetInfisicalToken(cmd)
+		if err != nil {
+			util.HandleError(err, "Unable to parse flag")
+		}
+
+		if token == nil {
+			util.HandleError(fmt.Errorf("Token not found"))
+		}
+
+		domain, err := cmd.Flags().GetString("domain")
+		if err != nil {
+			util.HandleError(err, "Unable to parse domain flag")
+		}
+
+		if err := gateway.InstallGatewaySystemdService(token.Token, domain); err != nil {
+			util.HandleError(err, "Failed to install systemd service")
+		}
+
+		enableCmd := exec.Command("systemctl", "enable", "infisical-gateway")
+		if err := enableCmd.Run(); err != nil {
+			util.HandleError(err, "Failed to enable systemd service")
+		}
+
+		log.Info().Msg("Successfully installed and enabled infisical-gateway service")
+		log.Info().Msg("To start the service, run: sudo systemctl start infisical-gateway")
+	},
+}
+
 var gatewayRelayCmd = &cobra.Command{
 	Example:               `infisical gateway relay`,
 	Short:                 "Used to run infisical gateway relay",
@@ -139,9 +177,12 @@ var gatewayRelayCmd = &cobra.Command{
 
 func init() {
 	gatewayCmd.Flags().String("token", "", "Connect with Infisical using machine identity access token")
+	gatewayInstallCmd.Flags().String("token", "", "Connect with Infisical using machine identity access token")
+	gatewayInstallCmd.Flags().String("domain", "", "Domain of your self-hosted Infisical instance")
 
 	gatewayRelayCmd.Flags().String("config", "", "Relay config yaml file path")
 
+	gatewayCmd.AddCommand(gatewayInstallCmd)
 	gatewayCmd.AddCommand(gatewayRelayCmd)
 	rootCmd.AddCommand(gatewayCmd)
 }

cli/packages/gateway/systemd.go

@@ -17,7 +17,7 @@ After=network.target
 [Service]
 Type=simple
 EnvironmentFile=/etc/infisical/gateway.conf
-ExecStart=/usr/local/bin/infisical gateway
+ExecStart=infisical gateway
 Restart=on-failure
 InaccessibleDirectories=/home
 PrivateTmp=yes