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Refactor driver selection to allow registering new drivers
Signed-off-by: Sambhav Kothari <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package app | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/k3s-io/kine/pkg/endpoint" | ||
| "github.com/k3s-io/kine/pkg/metrics" | ||
| "github.com/k3s-io/kine/pkg/signals" | ||
| "github.com/k3s-io/kine/pkg/version" | ||
| "github.com/sirupsen/logrus" | ||
| "github.com/urfave/cli/v2" | ||
| ) | ||
|
|
||
| var ( | ||
| config endpoint.Config | ||
| metricsConfig metrics.Config | ||
| ) | ||
|
|
||
| func New() *cli.App { | ||
| app := cli.NewApp() | ||
| app.Name = "kine" | ||
| app.Usage = "Minimal etcd v3 API to support custom Kubernetes storage engines" | ||
| app.Version = fmt.Sprintf("%s (%s)", version.Version, version.GitCommit) | ||
| app.Flags = []cli.Flag{ | ||
| &cli.StringFlag{ | ||
| Name: "listen-address", | ||
| Value: "0.0.0.0:2379", | ||
| Destination: &config.Listener, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "endpoint", | ||
| Usage: "Storage endpoint (default is sqlite)", | ||
| Destination: &config.Endpoint, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "ca-file", | ||
| Usage: "CA cert for DB connection", | ||
| Destination: &config.BackendTLSConfig.CAFile, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "cert-file", | ||
| Usage: "Certificate for DB connection", | ||
| Destination: &config.BackendTLSConfig.CertFile, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "key-file", | ||
| Usage: "Key file for DB connection", | ||
| Destination: &config.BackendTLSConfig.KeyFile, | ||
| }, | ||
| &cli.BoolFlag{ | ||
| Name: "skip-verify", | ||
| Usage: "Whether the TLS client should verify the server certificate.", | ||
| Destination: &config.BackendTLSConfig.SkipVerify, | ||
| Value: false, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "metrics-bind-address", | ||
| Usage: "The address the metric endpoint binds to. Default :8080, set 0 to disable metrics serving.", | ||
| Destination: &metricsConfig.ServerAddress, | ||
| Value: ":8080", | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "server-cert-file", | ||
| Usage: "Certificate for etcd connection", | ||
| Destination: &config.ServerTLSConfig.CertFile, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "server-key-file", | ||
| Usage: "Key file for etcd connection", | ||
| Destination: &config.ServerTLSConfig.KeyFile, | ||
| }, | ||
| &cli.IntFlag{ | ||
| Name: "datastore-max-idle-connections", | ||
| Usage: "Maximum number of idle connections retained by datastore. If value = 0, the system default will be used. If value < 0, idle connections will not be reused.", | ||
| Destination: &config.ConnectionPoolConfig.MaxIdle, | ||
| Value: 0, | ||
| }, | ||
| &cli.IntFlag{ | ||
| Name: "datastore-max-open-connections", | ||
| Usage: "Maximum number of open connections used by datastore. If value <= 0, then there is no limit", | ||
| Destination: &config.ConnectionPoolConfig.MaxOpen, | ||
| Value: 0, | ||
| }, | ||
| &cli.DurationFlag{ | ||
| Name: "datastore-connection-max-lifetime", | ||
| Usage: "Maximum amount of time a connection may be reused. If value <= 0, then there is no limit.", | ||
| Destination: &config.ConnectionPoolConfig.MaxLifetime, | ||
| Value: 0, | ||
| }, | ||
| &cli.DurationFlag{ | ||
| Name: "slow-sql-threshold", | ||
| Usage: "The duration which SQL executed longer than will be logged. Default 1s, set <= 0 to disable slow SQL log.", | ||
| Destination: &metrics.SlowSQLThreshold, | ||
| Value: time.Second, | ||
| }, | ||
| &cli.BoolFlag{ | ||
| Name: "metrics-enable-profiling", | ||
| Usage: "Enable net/http/pprof handlers on the metrics bind address. Default is false.", | ||
| Destination: &metricsConfig.EnableProfiling, | ||
| }, | ||
| &cli.DurationFlag{ | ||
| Name: "watch-progress-notify-interval", | ||
| Usage: "Interval between periodic watch progress notifications. Default is 5s to ensure support for watch progress notifications.", | ||
| Destination: &config.NotifyInterval, | ||
| Value: time.Second * 5, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "emulated-etcd-version", | ||
| Usage: "The emulated etcd version to return on a call to the status endpoint. Defaults to 3.5.13, in order to indicate support for watch progress notifications.", | ||
| Destination: &config.EmulatedETCDVersion, | ||
| Value: "3.5.13", | ||
| }, | ||
| &cli.BoolFlag{Name: "debug"}, | ||
| } | ||
| app.Action = run | ||
| return app | ||
| } | ||
|
|
||
| func run(c *cli.Context) error { | ||
| logrus.SetFormatter(&logrus.TextFormatter{ | ||
| FullTimestamp: true, | ||
| TimestampFormat: time.RFC3339Nano, | ||
| }) | ||
| if c.Bool("debug") { | ||
| logrus.SetLevel(logrus.TraceLevel) | ||
| } | ||
| ctx := signals.SetupSignalContext() | ||
|
|
||
| metricsConfig.ServerTLSConfig = config.ServerTLSConfig | ||
| go metrics.Serve(ctx, metricsConfig) | ||
| config.MetricsRegisterer = metrics.Registry | ||
| _, err := endpoint.Listen(ctx, config) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| <-ctx.Done() | ||
| return ctx.Err() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| package drivers | ||
|
|
||
| import ( | ||
| "github.com/k3s-io/kine/pkg/drivers/generic" | ||
| "github.com/k3s-io/kine/pkg/tls" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
|
|
||
| type Config struct { | ||
| MetricsRegisterer prometheus.Registerer | ||
| Endpoint string | ||
| Scheme string | ||
| DataSourceName string | ||
| ConnectionPoolConfig generic.ConnectionPoolConfig | ||
| BackendTLSConfig tls.Config | ||
| } |
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