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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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22
assets/templates/fstab.raspbian.tmpl
View File

@ -1,10 +1,12 @@
proc /proc proc defaults 0 0
/dev/mmcblk0p1 /boot vfat ro,defaults 0 2
/dev/mmcblk0p2 / ext4 ro,defaults,noatime 0 1
tmpfs /var/log tmpfs nodev,nosuid 0 0
tmpfs /var/tmp tmpfs nodev,nosuid 0 0
tmpfs /tmp tmpfs nodev,nosuid 0 0
tmpfs /var/lib/systemd/timesync tmpfs auto,noatime,size=5m,mode=0755,uid={{.TimesyncUID}},gid={{.TimesyncGID}} 0 0
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
proc /proc proc defaults 0 0
/dev/mmcblk0p1 /boot vfat ro,defaults 0 2
/dev/mmcblk0p2 / ext4 ro,defaults,noatime 0 1
tmpfs /var/log tmpfs nodev,nosuid 0 0
tmpfs /var/tmp tmpfs nodev,nosuid 0 0
tmpfs /tmp tmpfs nodev,nosuid 0 0
tmpfs /var/lib/systemd/timesync tmpfs auto,noatime,size=5m,mode=0755,uid={{.TimesyncUID}},gid={{.TimesyncGID}} 0 0
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

179
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")
@ -182,12 +211,16 @@ func Fstab(system string) error {
// Create and write.
if err := t.Execute(f, struct {
TimesyncUID string
TimesyncGID string
MopidyUID string
MopidyGID string
UpmpdcliUID string
UpmpdcliGID string
TimesyncUID string
TimesyncGID string
MopidyUID string
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")
}
}