120 lines
2.4 KiB
Go
120 lines
2.4 KiB
Go
package feta
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import "os"
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import "time"
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import "github.com/jinzhu/gorm"
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import _ "github.com/jinzhu/gorm/dialects/sqlite"
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import "github.com/rs/zerolog"
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import "github.com/rs/zerolog/log"
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import "golang.org/x/crypto/ssh/terminal"
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type InstanceHostname string
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func CLIEntry(version string, buildtime string, buildarch string, builduser string) int {
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f := new(FetaProcess)
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f.version = version
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f.buildtime = buildtime
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f.buildarch = buildarch
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f.builduser = builduser
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f.setupLogging()
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return f.RunForever()
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}
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// FetaProcess is the main structure/process of this app
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type FetaProcess struct {
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version string
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buildtime string
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buildarch string
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builduser string
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locator *InstanceLocator
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manager *InstanceManager
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api *FetaAPIServer
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db *gorm.DB
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startup time.Time
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}
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func (f *FetaProcess) identify() {
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log.Info().
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Str("version", f.version).
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Str("buildtime", f.buildtime).
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Str("buildarch", f.buildarch).
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Str("builduser", f.builduser).
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Msg("starting")
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}
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func (f *FetaProcess) setupLogging() {
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log.Logger = log.With().Caller().Logger()
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if terminal.IsTerminal(int(os.Stdout.Fd())) {
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out := zerolog.NewConsoleWriter(
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func(w *zerolog.ConsoleWriter) {
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// Customize time format
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w.TimeFormat = time.RFC3339
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},
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)
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log.Logger = log.Output(out)
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}
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// always log in UTC
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zerolog.TimestampFunc = func() time.Time {
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return time.Now().UTC()
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}
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zerolog.SetGlobalLevel(zerolog.InfoLevel)
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if os.Getenv("DEBUG") != "" {
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zerolog.SetGlobalLevel(zerolog.DebugLevel)
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}
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f.identify()
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}
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func (f *FetaProcess) Uptime() time.Duration {
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return time.Since(f.startup)
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}
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func (f *FetaProcess) setupDatabase() {
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var err error
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f.db, err = gorm.Open("sqlite3", "feta.sqlite")
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if err != nil {
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panic(err)
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}
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f.databaseMigrations()
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}
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func (f *FetaProcess) RunForever() int {
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f.startup = time.Now()
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f.setupDatabase()
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newInstanceHostnameNotifications := make(chan InstanceHostname)
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f.locator = NewInstanceLocator()
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f.manager = NewInstanceManager()
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f.api = new(FetaAPIServer)
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f.api.feta = f // api needs to get to us to access data
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f.locator.AddInstanceNotificationChannel(newInstanceHostnameNotifications)
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f.manager.AddInstanceNotificationChannel(newInstanceHostnameNotifications)
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// locator goroutine:
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go f.locator.Locate()
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// manager goroutine:
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go f.manager.Manage()
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go f.api.Serve()
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// this goroutine (main) does nothing until we handle signals
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// FIXME(sneak)
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for {
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time.Sleep(1 * time.Second)
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}
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return 0
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}
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