run

package
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 Go to latest Published: Mar 16, 2023 License: MPL-2.0 Imports: 53 Imported by: 0

Documentation

Overview

Package run starts and tracks running Encore applications.

Index

Constants

View Source 
const TestHeaderDisablePlatformAuth = "X-Encore-Test-Disable-Platform-Auth"

Variables

This section is empty.

Functions

func GenID added in v1.8.0 

func GenID() string

GenID generates a random run/process id. It panics if it cannot get random bytes.

func IgnoreEvents added in v1.11.0 

func IgnoreEvents(events []watcher.Event) bool

IgnoreEvents will return true if _all_ events are on files that should be ignored as the do not impact the running app, or are the result of Encore itself generating code.

Types

type AsyncBuildJobs added in v1.11.0 

type AsyncBuildJobs struct {
	// contains filtered or unexported fields
}

func NewAsyncBuildJobs added in v1.11.0 

func NewAsyncBuildJobs(ctx context.Context, appID string, tracker *optracker.OpTracker) *AsyncBuildJobs

func (*AsyncBuildJobs) Go added in v1.11.0 

func (a *AsyncBuildJobs) Go(description string, track bool, minDuration time.Duration, f func(ctx context.Context) error)

func (*AsyncBuildJobs) Wait added in v1.11.0 

func (a *AsyncBuildJobs) Wait() error

type EventListener 

type EventListener interface {
	// OnStart is called when a run starts.
	OnStart(r *Run)
	// OnReload is called when a run reloads.
	OnReload(r *Run)
	// OnStop is called when a run stops.
	OnStop(r *Run)
	// OnStdout is called when a run outputs something on stdout.
	OnStdout(r *Run, out []byte)
	// OnStderr is called when a run outputs something on stderr.
	OnStderr(r *Run, out []byte)
	// OnError is called when a run encounters an error.
	OnError(r *Run, err *errlist.List)
}

EventListener is the interface for listening to events about running apps.

type ExecScriptParams added in v1.11.0 

type ExecScriptParams struct {
	// App is the app to execute the script for.
	App *apps.Instance

	// ScriptRelPath is the path holding the command, from the app root.
	// It's either a directory or a files.
	ScriptRelPath string

	// ScriptArgs are the arguments to pass to the script binary.
	ScriptArgs []string

	// WorkingDir is the working dir to execute the script from.
	// It's relative to the app root.
	WorkingDir string

	// Environ are the environment variables to set when running the tests,
	// in the same format as os.Environ().
	Environ []string

	// Stdout and Stderr are where "go test" output should be written.
	Stdout, Stderr io.Writer

	OpTracker *optracker.OpTracker
}

ExecScriptParams groups the parameters for the ExecScript method.

type Manager 

type Manager struct {
	RuntimePort int // port for Encore runtime
	DBProxyPort int // port for sqldb proxy
	DashPort    int // port for dev dashboard
	Secret      *secret.Manager
	ClusterMgr  *sqldb.ClusterManager
	// contains filtered or unexported fields
}

Manager manages the set of running applications.

func (*Manager) AddListener 

func (mgr *Manager) AddListener(ln EventListener)

AddListener adds an event listener to mgr. It must be called before starting the first run.

func (*Manager) Check 

func (mgr *Manager) Check(ctx context.Context, appRoot, relwd string, codegenDebug bool) (buildDir string, err error)

Check checks the app for errors. It reports a buildDir (if available) when codegenDebug is true.

func (*Manager) ExecScript added in v1.11.0 

func (mgr *Manager) ExecScript(ctx context.Context, p ExecScriptParams) (err error)

ExecScript executes the script.

func (*Manager) FindProc 

func (mgr *Manager) FindProc(procID string) *Proc

FindProc finds the proc with the given id. It reports nil if no such proc was found.

func (*Manager) FindRunByAppID 

func (mgr *Manager) FindRunByAppID(appID string) *Run

FindRunByAppID finds the run with the given app id. It reports nil if no such run was found.

func (*Manager) ListRuns 

func (mgr *Manager) ListRuns() []*Run

ListRuns provides a snapshot of all runs.

func (*Manager) RunError added in v1.8.0 

func (mgr *Manager) RunError(r *Run, err *errlist.List)

func (*Manager) RunStderr added in v1.8.0 

func (mgr *Manager) RunStderr(r *Run, out []byte)

func (*Manager) RunStdout added in v1.8.0 

func (mgr *Manager) RunStdout(r *Run, out []byte)

func (*Manager) Start 

func (mgr *Manager) Start(ctx context.Context, params StartParams) (run *Run, err error)

Start starts the application. Its lifetime is bounded by ctx.

func (*Manager) Test 

func (mgr *Manager) Test(ctx context.Context, params TestParams) (err error)

Test runs the tests.

type Proc 

type Proc struct {
	ID          string           // unique process id
	Run         *Run             // the run the process belongs to
	Pid         int              // the OS process id
	Meta        *meta.Data       // app metadata snapshot
	Started     time.Time        // when the process started
	Experiments *experiments.Set // enabled experiments

	Client *yamux.Session
	// contains filtered or unexported fields
}

Proc represents a running Encore process.

func (*Proc) Close added in v1.8.0 

func (p *Proc) Close()

Close closes the process and waits for it to shutdown. It can safely be called multiple times.

func (*Proc) Done 

func (p *Proc) Done() <-chan struct{}

Done returns a channel that is closed when the process has exited.

func (*Proc) SymTable added in v0.16.2 

func (p *Proc) SymTable(ctx context.Context) (*sym.Table, error)

SymTable waits for the proc's symbol table to be parsed and then returns it. ctx is used to cancel the wait.

type ResourceServer added in v1.3.0 

type ResourceServer interface {
	Stop() // Shutdown the resource
}

type ResourceServices added in v1.3.0 

type ResourceServices struct {
	// contains filtered or unexported fields
}

ResourceServices represent the set of servers/services we have started up to support the running Encore application.

func NewResourceServices added in v1.11.0 

func NewResourceServices(app *apps.Instance, sqlMgr *sqldb.ClusterManager) *ResourceServices

func (*ResourceServices) GetPubSub added in v1.3.0 

func (rs *ResourceServices) GetPubSub() *pubsub.NSQDaemon

GetPubSub returns the PubSub daemon if it is running otherwise it returns nil

func (*ResourceServices) GetRedis added in v1.7.0 

func (rs *ResourceServices) GetRedis() *redis.Server

GetRedis returns the Redis server if it is running otherwise it returns nil

func (*ResourceServices) GetSQLCluster added in v1.3.0 

func (rs *ResourceServices) GetSQLCluster() *sqldb.Cluster

GetSQLCluster returns the SQL cluster

func (*ResourceServices) StartPubSub added in v1.3.0 

func (rs *ResourceServices) StartPubSub(ctx context.Context) error

StartPubSub starts a PubSub daemon.

func (*ResourceServices) StartRedis added in v1.7.0 

func (rs *ResourceServices) StartRedis(ctx context.Context) error

StartRedis starts a Redis server.

func (*ResourceServices) StartRequiredServices added in v1.3.0 

func (rs *ResourceServices) StartRequiredServices(a *AsyncBuildJobs, parse *parser.Result) error

StartRequiredServices will start the required services for the current application if they are not already running based on the given parse result

func (*ResourceServices) StartSQLCluster added in v1.3.0 

func (rs *ResourceServices) StartSQLCluster(a *AsyncBuildJobs, parse *parser.Result) func(ctx context.Context) error

func (*ResourceServices) StopAll added in v1.3.0 

func (rs *ResourceServices) StopAll()

type Run 

type Run struct {
	ID              string // unique ID for this instance of the running app
	App             *apps.Instance
	ListenAddr      string // the address the app is listening on
	ResourceServers *ResourceServices

	Mgr *Manager
	// contains filtered or unexported fields
}

Run represents a running Encore application.

func (*Run) Done 

func (r *Run) Done() <-chan struct{}

Done returns a channel that is closed when the run is closed.

func (*Run) Proc 

func (r *Run) Proc() *Proc

Proc returns the current running process. It may have already exited. If the proc has not yet started it may return nil.

func (*Run) Reload 

func (r *Run) Reload() error

Reload rebuilds the app and, if successful, starts a new proc and switches over.

func (*Run) ServeHTTP 

func (r *Run) ServeHTTP(w http.ResponseWriter, req *http.Request)

ServeHTTP implements http.Handler by forwarding the request to the currently running process.

func (*Run) StartProc added in v1.8.0 

func (r *Run) StartProc(params *StartProcParams) (p *Proc, err error)

StartProc starts a single actual OS process for app.

func (*Run) StoreProc added in v1.8.0 

func (r *Run) StoreProc(p *Proc)

type RunLogger added in v1.10.0 

type RunLogger interface {
	RunStdout(r *Run, line []byte)
	RunStderr(r *Run, line []byte)
}

RunLogger is the interface for listening to run logs. The log methods are called for each logline on stdout and stderr respectively.

type StartParams 

type StartParams struct {
	// App is the app to start.
	App *apps.Instance

	// WorkingDir is the working dir, for formatting
	// error messages with relative paths.
	WorkingDir string

	// Watch enables watching for code changes for live reloading.
	Watch bool

	Listener   net.Listener // listener to use
	ListenAddr string       // address we're listening on

	// Environ are the environment variables to set for the running app,
	// in the same format as os.Environ().
	Environ []string

	// The Ops tracker being used for this run
	OpsTracker *optracker.OpTracker
}

StartParams groups the parameters for the Run method.

type StartProcParams added in v1.8.0 

type StartProcParams struct {
	Ctx            context.Context
	BuildDir       string
	BinPath        string
	Meta           *meta.Data
	Secrets        map[string]string
	ServiceConfigs map[string]string
	RuntimePort    int
	DBProxyPort    int
	SQLDBCluster   *sqldb.Cluster    // nil means no cluster
	NSQDaemon      *pubsub.NSQDaemon // nil means no pubsub
	Redis          *redis.Server     // nil means no redis
	Logger         RunLogger
	Environ        []string
	Experiments    *experiments.Set
}

type TestParams 

type TestParams struct {
	// App is the app to test.
	App *apps.Instance

	// SQLDBCluster is the SQLDB cluster to use, if any.
	SQLDBCluster *sqldb.Cluster

	// WorkingDir is the working dir, for formatting
	// error messages with relative paths.
	WorkingDir string

	// Parse is the parse result for the initial run of the app.
	// It must be set.
	Parse *parser.Result

	// Secrets are the secrets to use.
	Secrets *secret.LoadResult

	// Args are the arguments to pass to "go test".
	Args []string

	// Environ are the environment variables to set when running the tests,
	// in the same format as os.Environ().
	Environ []string

	// Stdout and Stderr are where "go test" output should be written.
	Stdout, Stderr io.Writer
}

TestParams groups the parameters for the Test method.

Source Files

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