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Add support for docker swarm service discovery (#103)

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This commit is contained in:
n1xx1
2022-08-05 03:59:20 +02:00
committed by GitHub
parent de3c728d86
commit d15bc9e986
7 changed files with 432 additions and 598 deletions
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cmd/mc-router/main.go
+25 -13
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@@ -30,19 +30,22 @@ type MetricsBackendConfig struct {
}
type Config struct {
Port int `default:"25565" usage:"The [port] bound to listen for Minecraft client connections"`
Mapping []string `usage:"Comma-separated or repeated mappings of externalHostname=host:port"`
ApiBinding string `usage:"The [host:port] bound for servicing API requests"`
Version bool `usage:"Output version and exit"`
CpuProfile string `usage:"Enables CPU profiling and writes to given path"`
Debug bool `usage:"Enable debug logs"`
ConnectionRateLimit int `default:"1" usage:"Max number of connections to allow per second"`
InKubeCluster bool `usage:"Use in-cluster Kubernetes config"`
KubeConfig string `usage:"The path to a Kubernetes configuration file"`
AutoScaleUp bool `usage:"Increase Kubernetes StatefulSet Replicas (only) from 0 to 1 on respective backend servers when accessed"`
MetricsBackend string `default:"discard" usage:"Backend to use for metrics exposure/publishing: discard,expvar,influxdb"`
UseProxyProtocol bool `default:"false" usage:"Send PROXY protocol to backend servers"`
MetricsBackendConfig MetricsBackendConfig
Port int `default:"25565" usage:"The [port] bound to listen for Minecraft client connections"`
Mapping []string `usage:"Comma-separated or repeated mappings of externalHostname=host:port"`
ApiBinding string `usage:"The [host:port] bound for servicing API requests"`
Version bool `usage:"Output version and exit"`
CpuProfile string `usage:"Enables CPU profiling and writes to given path"`
Debug bool `usage:"Enable debug logs"`
ConnectionRateLimit int `default:"1" usage:"Max number of connections to allow per second"`
InKubeCluster bool `usage:"Use in-cluster Kubernetes config"`
KubeConfig string `usage:"The path to a Kubernetes configuration file"`
AutoScaleUp bool `usage:"Increase Kubernetes StatefulSet Replicas (only) from 0 to 1 on respective backend servers when accessed"`
InDockerSwarm bool `usage:"Use in-swarm Docker config"`
DockerTimeout int `default:"0" usage:"Timeout configuration in seconds for the Docker Swarm integration"`
DockerRefreshInterval int `default:"15" usage:"Refresh interval in seconds for the Docker Swarm integration"`
MetricsBackend string `default:"discard" usage:"Backend to use for metrics exposure/publishing: discard,expvar,influxdb"`
UseProxyProtocol bool `default:"false" usage:"Send PROXY protocol to backend servers"`
MetricsBackendConfig MetricsBackendConfig
SimplifySRV bool `default:"false" usage:"Simplify fully qualified SRV records for mapping"`
}
@@ -131,6 +134,15 @@ func main() {
}
}
if config.InDockerSwarm {
err = server.DockerWatcher.StartInSwarm(config.DockerTimeout, config.DockerRefreshInterval)
if err != nil {
logrus.WithError(err).Fatal("Unable to start docker swarm integration")
} else {
defer server.DockerWatcher.Stop()
}
}
server.Routes.SimplifySRV(config.SimplifySRV)
err = metricsBuilder.Start(ctx)