xsteadfastx/schnutibox
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prepare: configures snapcast server and client
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This commit is contained in:
Marvin Steadfast 2021-04-29 13:41:37 +02:00
parent 979040227e
commit 9af55ee991
3 changed files with 156 additions and 48 deletions
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2
assets/templates/fstab.raspbian.tmpl
View File

@ -8,3 +8,5 @@ tmpfs /var/lib/systemd/timesync tmpfs auto,noatime,size=5m,mode=0755
tmpfs /var/cache/mopidy tmpfs auto,noatime,size=5m,mode=0755,uid={{.MopidyUID}},gid={{.MopidyGID}} 0 0
tmpfs /var/cache/upmpdcli tmpfs auto,noatime,size=5m,mode=0755,uid={{.UpmpdcliUID}},gid={{.UpmpdcliGID}} 0 0
tmpfs /var/lib/ntp tmpfs nosuid,nodev 0 0
tmpfs /var/lib/snapserver tmpfs nosuid,nodev 0 0
tmpfs /var/lib/snapclient tmpfs nosuid,nodev 0 0

3
assets/templates/mopidy.conf.tmpl
View File

@ -3,7 +3,7 @@ cache_dir = /var/cache/mopidy
config_dir = /etc/mopidy/
[audio]
output = alsasink
output = audioresample ! audioconvert ! audio/x-raw,rate=48000,channels=2,format=S16LE ! filesink location=/tmp/snapfifo
mixer = alsamixer
mixer_volume = 100
@ -11,7 +11,6 @@ mixer_volume = 100
card = 0
control= Headphone
[mpd]
hostname = 0.0.0.0

167
pkg/prepare/prepare.go
View File

@ -27,6 +27,10 @@ const (
schnutboxConfigDir = "/etc/schnutibox"
upmpdcliUser = "upmpdcli"
upmpdcliGroup = "nogroup"
snapserverUser = "snapserver"
snapserverGroup = "snapserver"
snapclientUser = "snapclient"
snapclientGroup = "snapclient"
)
var Cfg = struct {
@ -41,11 +45,11 @@ var Cfg = struct {
System string
}{}
// BoxService creates a systemd service for schnutibox.
func BoxService(filename string, enable bool) error {
// boxService creates a systemd service for schnutibox.
func boxService(filename string, enable bool) error {
logger := log.With().Str("stage", "BoxService").Logger()
if err := CreateUser(); err != nil {
if err := createUser(); err != nil {
return fmt.Errorf("could not create user: %w", err)
}
@ -83,7 +87,7 @@ func BoxService(filename string, enable bool) error {
return nil
}
func NTP() error {
func ntp() error {
logger := log.With().Str("stage", "NTP").Logger()
cmd := exec.Command("apt-get", "install", "-y", "ntp", "ntpdate")
@ -119,9 +123,9 @@ func NTP() error {
return nil
}
// Fstab creates a fstab for a read-only system.
// fstab creates a fstab for a read-only system.
// nolint:funlen
func Fstab(system string) error {
func fstab(system string) error {
logger := log.With().Str("stage", "Fstab").Logger()
// Getting timesync user and group informations.
@ -163,6 +167,31 @@ func Fstab(system string) error {
logger.Debug().Str("uid", upmpdcliUser.Uid).Str("gid", upmpdcliGroup.Gid).Msg("upmpdcli")
// Getting snapserver user and group informations.
snapserverUser, err := user.Lookup(snapserverUser)
if err != nil {
return fmt.Errorf("could not lookup snapserver user: %w", err)
}
snapserverGroup, err := user.LookupGroup(snapserverGroup)
if err != nil {
return fmt.Errorf("could not lookup snapserver group: %w", err)
}
logger.Debug().Str("uid", snapserverUser.Uid).Str("gid", snapserverGroup.Gid).Msg("snapserver")
snapclientUser, err := user.Lookup(snapclientUser)
if err != nil {
return fmt.Errorf("could not lookup snapclient user: %w", err)
}
snapclientGroup, err := user.LookupGroup(snapclientGroup)
if err != nil {
return fmt.Errorf("could not lookup snapclient group: %w", err)
}
logger.Debug().Str("uid", snapclientUser.Uid).Str("gid", snapclientGroup.Gid).Msg("snapclient")
// Chose the right template.
// In future it should be a switch statement.
tmpl, err := assets.Assets.ReadFile("templates/fstab.raspbian.tmpl")
@ -188,6 +217,10 @@ func Fstab(system string) error {
MopidyGID string
UpmpdcliUID string
UpmpdcliGID string
SnapserverUID string
SnapserverGID string
SnapclientUID string
SnapclientGID string
}{
timesyncUser.Uid,
timesyncGroup.Gid,
@ -195,6 +228,10 @@ func Fstab(system string) error {
mopidyGroup.Gid,
upmpdcliUser.Uid,
upmpdcliGroup.Gid,
snapserverUser.Uid,
snapserverGroup.Gid,
snapclientUser.Uid,
snapclientGroup.Gid,
}); err != nil {
return fmt.Errorf("could not write templated fstab: %w", err)
}
@ -202,8 +239,8 @@ func Fstab(system string) error {
return nil
}
// RemovePkgs removes not needed software in read-only mode.
func RemovePkgs(system string) error {
// removePkgs removes not needed software in read-only mode.
func removePkgs(system string) error {
logger := log.With().Str("stage", "RemovePkgs").Logger()
if system != "raspbian" {
logger.Info().Msg("nothing to do")
@ -240,7 +277,7 @@ func RemovePkgs(system string) error {
return nil
}
func CreateUDEVrules() error {
func udevRules() error {
logger := log.With().Str("stage", "CreateUDEVrules").Logger()
logger.Info().Msg("writing udev rule file")
@ -271,8 +308,8 @@ func CreateUDEVrules() error {
return nil
}
// CreateUser creates schnutibox system user and group.
func CreateUser() error {
// createUser creates schnutibox system user and group.
func createUser() error {
logger := log.With().Str("stage", "CreateUser").Logger()
cmd := exec.Command("adduser", "--system", "--group", "--no-create-home", schnutiboxUser)
@ -285,8 +322,8 @@ func CreateUser() error {
return nil
}
// CreateSymlinks creates all needed symlinks.
func CreateSymlinks(system string) error {
// symlinks creates all needed symlinks.
func symlinks(system string) error {
logger := log.With().Str("stage", "Symlinks").Logger()
links := []struct {
@ -365,17 +402,17 @@ func cmdlineTxt() error {
return nil
}
// makeReadOnly executes stuff if a read-only system is wanted.
func makeReadOnly(system string) error {
if err := RemovePkgs(system); err != nil {
// readOnly executes stuff if a read-only system is wanted.
func readOnly(system string) error {
if err := removePkgs(system); err != nil {
return fmt.Errorf("could not remove pkgs: %w", err)
}
if err := CreateSymlinks(system); err != nil {
if err := symlinks(system); err != nil {
return fmt.Errorf("could not create symlinks: %w", err)
}
if err := Fstab(system); err != nil {
if err := fstab(system); err != nil {
return fmt.Errorf("could not create fstab: %w", err)
}
@ -386,9 +423,9 @@ func makeReadOnly(system string) error {
return nil
}
// Mopidy setups mopidy.
// mopidy setups mopidy.
//nolint:funlen,cyclop
func Mopidy() error {
func mopidy() error {
logger := log.With().Str("stage", "Mopidy").Logger()
// GPG Key.
@ -501,7 +538,7 @@ func Mopidy() error {
// Upmpdcli setups upmpdcli.
//nolint:funlen
func Upmpdcli() error {
func upmpdcli() error {
logger := log.With().Str("stage", "Upmpdcli").Logger()
// GPG Key.
@ -584,8 +621,73 @@ func Upmpdcli() error {
return nil
}
func SchnutiboxConfig() error {
logger := log.With().Str("stage", "Upmpdcli").Logger()
// nolint:funlen
func snapcast() error {
logger := log.With().Str("stage", "snapcast").Logger()
// Download deb.
cmd := exec.Command(
"wget",
"https://github.com/badaix/snapcast/releases/download/v0.24.0/snapclient_0.24.0-1_without-pulse_armhf.deb",
"-O", "/tmp/snapclient.deb",
)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
logger.Debug().Str("cmd", cmd.String()).Msg("running")
if err := cmd.Run(); err != nil {
return fmt.Errorf("could not download snapclient deb: %w", err)
}
// Install deb
cmd = exec.Command(
"/bin/sh", "-c",
"dpkg -i /tmp/snapclient.deb; apt --fix-broken install -y; rm /tmp/snapclient.deb",
)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
logger.Debug().Str("cmd", cmd.String()).Msg("running")
if err := cmd.Run(); err != nil {
return fmt.Errorf("could not install snapclient deb: %w", err)
}
// Download deb.
cmd = exec.Command(
"wget",
"https://github.com/badaix/snapcast/releases/download/v0.24.0/snapserver_0.24.0-1_armhf.deb",
"-O", "/tmp/snapserver.deb",
)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
logger.Debug().Str("cmd", cmd.String()).Msg("running")
if err := cmd.Run(); err != nil {
return fmt.Errorf("could not download snapserver deb: %w", err)
}
// Install deb
cmd = exec.Command(
"/bin/sh", "-c",
"dpkg -i /tmp/snapserver.deb; apt --fix-broken install -y; rm /tmp/snapserver.deb",
)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
logger.Debug().Str("cmd", cmd.String()).Msg("running")
if err := cmd.Run(); err != nil {
return fmt.Errorf("could not install snapserver deb: %w", err)
}
return nil
}
func schnutiboxConfig() error {
logger := log.With().Str("stage", "schnutiboxConfig").Logger()
logger.Info().Msg("writing schnutibox config")
// Parse template.
@ -615,38 +717,43 @@ func Run(cmd *cobra.Command, args []string) {
log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
// Install schnutibox service.
if err := BoxService(serviceLocation+"/"+serviceFileName, true); err != nil {
if err := boxService(serviceLocation+"/"+serviceFileName, true); err != nil {
log.Fatal().Err(err).Msg("could not create schnutibox service")
}
// Create schnutibox config.
if err := SchnutiboxConfig(); err != nil {
if err := schnutiboxConfig(); err != nil {
log.Fatal().Err(err).Msg("could not create schnutibox config.")
}
// Install udev file.
if err := CreateUDEVrules(); err != nil {
if err := udevRules(); err != nil {
log.Fatal().Err(err).Msg("could not install udev rules")
}
// Setup NTP.
if err := NTP(); err != nil {
if err := ntp(); err != nil {
log.Fatal().Err(err).Msg("could not setup ntp")
}
// Setup mopidy.
if err := Mopidy(); err != nil {
if err := mopidy(); err != nil {
log.Fatal().Err(err).Msg("could not setup mopidy")
}
// Setup upmpdcli.
if err := Upmpdcli(); err != nil {
if err := upmpdcli(); err != nil {
log.Fatal().Err(err).Msg("could not setup upmpdcli")
}
// Setup snapcast.
if err := snapcast(); err != nil {
log.Fatal().Err(err).Msg("could not setup snapclient")
}
// Making system read-only.
if Cfg.ReadOnly {
if err := makeReadOnly(Cfg.System); err != nil {
if err := readOnly(Cfg.System); err != nil {
log.Fatal().Err(err).Msg("could not make system read-only")
}
}