feat: connect to xmidt cluster

feat: connect to xmidt cluster

.gitignore

@@ -15,7 +15,10 @@
 *.out
 
 # VS Code directories
-.vscode
+*.code-workspace
+.vscode/*
+.dev/*
+__debug_bin*
 
 # Dependency directories (remove the comment below to include it)
 # vendor/

MAINTAINERS.md

@@ -1,6 +1,6 @@
 Maintainers of this repository:
 
 * Weston Schmidt @schmidtw
-* Joel Unzain @joe94
+* Owen Cabalceta @denopink
 * John Bass @johnabass
 * Nick Harter @njharter

cmd/xmidt-agent/config.go

@@ -11,13 +11,15 @@ import (
 
 	"github.com/goschtalt/goschtalt"
 	"github.com/xmidt-org/arrange/arrangehttp"
+	"github.com/xmidt-org/retry"
 	"github.com/xmidt-org/sallust"
 	"github.com/xmidt-org/wrp-go/v3"
 	"gopkg.in/dealancer/validate.v2"
 )
 
 // Config is the configuration for the xmidt-agent.
 type Config struct {
+	Client           Client
 	Identity         Identity
 	OperationalState OperationalState
 	XmidtCredentials XmidtCredentials
@@ -26,6 +28,41 @@ type Config struct {
 	Storage          Storage
 }
 
+type Client struct {
+	//  FetchURL is the url used to fetch the WS url.
+	FetchURL string
+	//  (optional) FetchURLTimeout is the timeout for the fetching the WS url. If this is not set, the default is 30 seconds.
+	FetchURLTimeout time.Duration
+	//  (optional) PingInterval is the ping interval allowed for the WS connection.
+	PingInterval time.Duration
+	//  (optional) PingTimeout is the ping timeout for the WS connection.
+	PingTimeout time.Duration
+	//  (optional) ConnectTimeout is the connect timeout for the WS connection.
+	ConnectTimeout time.Duration
+	//  (optional) KeepAliveInterval is the keep alive interval for the WS connection.
+	KeepAliveInterval time.Duration
+	//  (optional) IdleConnTimeout is the idle connection timeout for the WS connection.
+	IdleConnTimeout time.Duration
+	//  (optional) TLSHandshakeTimeout is the TLS handshake timeout for the WS connection.
+	TLSHandshakeTimeout time.Duration
+	//  (optional) ExpectContinueTimeout is the expect continue timeout for the WS connection.
+	ExpectContinueTimeout time.Duration
+	//  (optional) MaxMessageBytes is the largest allowable message to send or receive.
+	MaxMessageBytes int64
+	// (optional) DisableV4 determines whether or not to allow IPv4 for the WS connection.
+	// If this is not set, the default is false (IPv4 is enabled).
+	// Either V4 or V6 can be disabled, but not both.
+	DisableV4 bool
+	// (optional) DisableV6 determines whether or not to allow IPv6 for the WS connection.
+	// If this is not set, the default is false (IPv6 is enabled).
+	// Either V4 or V6 can be disabled, but not both.
+	DisableV6 bool
+	//  (optional) RetryPolicy sets the retry policy factory used for delaying between retry attempts for reconnection.
+	RetryPolicy retry.Config
+	// (optional) Once sets whether or not to only attempt to connect once.
+	Once bool
+}
+
 // Identity contains the information that identifies the device.
 type Identity struct {
 	// DeviceID is the unique identifier for the device.  Generally this is a

cmd/xmidt-agent/main.go

@@ -7,15 +7,19 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"runtime/debug"
 
 	"github.com/alecthomas/kong"
 	"github.com/goschtalt/goschtalt"
 	_ "github.com/goschtalt/goschtalt/pkg/typical"
 	_ "github.com/goschtalt/yaml-decoder"
 	_ "github.com/goschtalt/yaml-encoder"
 	"github.com/xmidt-org/sallust"
+	"github.com/xmidt-org/wrp-go/v3"
 	"github.com/xmidt-org/xmidt-agent/internal/credentials"
 	"github.com/xmidt-org/xmidt-agent/internal/jwtxt"
+	"github.com/xmidt-org/xmidt-agent/internal/websocket"
+	"github.com/xmidt-org/xmidt-agent/internal/websocket/event"
 
 	"go.uber.org/fx"
 	"go.uber.org/fx/fxevent"
@@ -43,6 +47,15 @@ type CLI struct {
 	Files []string `optional:"" short:"f" help:"Specific configuration files or directories."`
 }
 
+type LifeCycleIn struct {
+	fx.In
+	Logger     *zap.Logger
+	LC         fx.Lifecycle
+	Shutdowner fx.Shutdowner
+	WS         *websocket.Websocket
+	CancelList []event.CancelFunc
+}
+
 // xmidtAgent is the main entry point for the program.  It is responsible for
 // setting up the dependency injection framework and returning the app object.
 func xmidtAgent(args []string) (*fx.App, error) {
@@ -72,13 +85,18 @@ func xmidtAgent(args []string) (*fx.App, error) {
 			provideConfig,
 			provideCredentials,
 			provideInstructions,
+			provideWS,
+			func(id Identity) wrp.DeviceID {
+				return id.DeviceID
+			},
 
 			goschtalt.UnmarshalFunc[sallust.Config]("logger", goschtalt.Optional()),
 			goschtalt.UnmarshalFunc[Identity]("identity"),
 			goschtalt.UnmarshalFunc[OperationalState]("operational_state"),
 			goschtalt.UnmarshalFunc[XmidtCredentials]("xmidt_credentials"),
 			goschtalt.UnmarshalFunc[XmidtService]("xmidt_service"),
 			goschtalt.UnmarshalFunc[Storage]("storage"),
+			goschtalt.UnmarshalFunc[Client]("client"),
 		),
 
 		fsProvide(),
@@ -96,6 +114,7 @@ func xmidtAgent(args []string) (*fx.App, error) {
 					fmt.Println(s)
 				}
 			},
+			lifeCycle,
 		),
 	)
 
@@ -170,29 +189,76 @@ func provideCLIWithOpts(args cliArgs, testOpts bool) (*CLI, error) {
 	return &cli, nil
 }
 
+type LoggerIn struct {
+	fx.In
+	CLI *CLI
+	Cfg sallust.Config
+}
+
 // Create the logger and configure it based on if the program is in
 // debug mode or normal mode.
-func provideLogger(cli *CLI, cfg sallust.Config) (*zap.Logger, error) {
-	if cli.Dev {
-		cfg.Level = "DEBUG"
-		cfg.Development = true
-		cfg.Encoding = "console"
-		cfg.EncoderConfig = sallust.EncoderConfig{
-			TimeKey:        "T",
-			LevelKey:       "L",
-			NameKey:        "N",
-			CallerKey:      "C",
-			FunctionKey:    zapcore.OmitKey,
-			MessageKey:     "M",
-			StacktraceKey:  "S",
-			LineEnding:     zapcore.DefaultLineEnding,
-			EncodeLevel:    "capitalColor",
-			EncodeTime:     "RFC3339",
-			EncodeDuration: "string",
-			EncodeCaller:   "short",
-		}
-		cfg.OutputPaths = []string{"stderr"}
-		cfg.ErrorOutputPaths = []string{"stderr"}
+func provideLogger(in LoggerIn) (*zap.Logger, error) {
+	in.Cfg.EncoderConfig = sallust.EncoderConfig{
+		TimeKey:        "T",
+		LevelKey:       "L",
+		NameKey:        "N",
+		CallerKey:      "C",
+		FunctionKey:    zapcore.OmitKey,
+		MessageKey:     "M",
+		StacktraceKey:  "S",
+		LineEnding:     zapcore.DefaultLineEnding,
+		EncodeLevel:    "capitalColor",
+		EncodeTime:     "RFC3339",
+		EncodeDuration: "string",
+		EncodeCaller:   "short",
+	}
+
+	if in.CLI.Dev {
+		in.Cfg.Level = "DEBUG"
+		in.Cfg.Development = true
+		in.Cfg.Encoding = "console"
+		in.Cfg.OutputPaths = append(in.Cfg.OutputPaths, "stderr")
+		in.Cfg.ErrorOutputPaths = append(in.Cfg.ErrorOutputPaths, "stderr")
 	}
-	return cfg.Build()
+
+	return in.Cfg.Build()
+}
+
+func lifeCycle(in LifeCycleIn) {
+	logger := in.Logger.With(zap.String("component", "fx_lifecycle"))
+	in.LC.Append(
+		fx.Hook{
+			OnStart: func(ctx context.Context) error {
+				defer func() {
+					if r := recover(); nil != r {
+						logger.Error("stacktrace from panic", zap.String("stacktrace", string(debug.Stack())), zap.Any("panic", r))
+					}
+				}()
+
+				logger.Info("starting ws")
+				in.WS.Start()
+
+				return nil
+			},
+			OnStop: func(ctx context.Context) error {
+				defer func() {
+					if r := recover(); nil != r {
+						logger.Error("stacktrace from panic", zap.String("stacktrace", string(debug.Stack())), zap.Any("panic", r))
+					}
+
+					if err := in.Shutdowner.Shutdown(); err != nil {
+						logger.Error("encountered error trying to shutdown app: ", zap.Error(err))
+					}
+				}()
+
+				logger.Info("stopping ws listeners")
+				in.WS.Stop()
+				for _, c := range in.CancelList {
+					c()
+				}
+
+				return nil
+			},
+		},
+	)
 }