Informer plugin ready

5 files changed, 277 insertions, 0 deletions

diff --git a/plugins/informer/plugin.go b/plugins/informer/plugin.go
new file mode 100644
index 00000000..09d933fd
--- /dev/null
+++ b/plugins/informer/plugin.go
@@ -0,0 +1,56 @@
+package informer
+
+import (
+	"github.com/spiral/endure"
+	"github.com/spiral/errors"
+	"github.com/spiral/roadrunner/v2"
+	"github.com/spiral/roadrunner/v2/interfaces/informer"
+	"github.com/spiral/roadrunner/v2/interfaces/log"
+)
+
+const PluginName = "informer"
+
+type Plugin struct {
+	registry map[string]informer.Informer
+	log      log.Logger
+}
+
+func (p *Plugin) Init(log log.Logger) error {
+	p.registry = make(map[string]informer.Informer)
+	p.log = log
+	return nil
+}
+
+// Reset named service.
+func (p *Plugin) Workers(name string) ([]roadrunner.WorkerBase, error) {
+	const op = errors.Op("get workers")
+	svc, ok := p.registry[name]
+	if !ok {
+		return nil, errors.E(op, errors.Errorf("no such service: %s", name))
+	}
+
+	return svc.Workers(), nil
+}
+
+// CollectTarget resettable service.
+func (p *Plugin) CollectTarget(name endure.Named, r informer.Informer) error {
+	p.registry[name.Name()] = r
+	return nil
+}
+
+// Collects declares services to be collected.
+func (p *Plugin) Collects() []interface{} {
+	return []interface{}{
+		p.CollectTarget,
+	}
+}
+
+// Name of the service.
+func (p *Plugin) Name() string {
+	return PluginName
+}
+
+// RPCService returns associated rpc service.
+func (p *Plugin) RPC() interface{} {
+	return &rpc{srv: p, log: p.log}
+}
diff --git a/plugins/informer/rpc.go b/plugins/informer/rpc.go
new file mode 100644
index 00000000..de47a739
--- /dev/null
+++ b/plugins/informer/rpc.go
@@ -0,0 +1,53 @@
+package informer
+
+import (
+	"github.com/spiral/roadrunner/v2"
+	"github.com/spiral/roadrunner/v2/interfaces/log"
+)
+
+type rpc struct {
+	srv *Plugin
+	log log.Logger
+}
+
+// WorkerList contains list of workers.
+type WorkerList struct {
+	// Workers is list of workers.
+	Workers []roadrunner.ProcessState `json:"workers"`
+}
+
+// List all resettable services.
+func (rpc *rpc) List(_ bool, list *[]string) error {
+	rpc.log.Info("Started List method")
+	*list = make([]string, 0, len(rpc.srv.registry))
+
+	for name := range rpc.srv.registry {
+		*list = append(*list, name)
+	}
+	rpc.log.Debug("list of services", "list", *list)
+
+	rpc.log.Info("successfully finished List method")
+	return nil
+}
+
+// Workers state of a given service.
+func (rpc *rpc) Workers(service string, list *WorkerList) error {
+	rpc.log.Info("started Workers method", "service", service)
+	workers, err := rpc.srv.Workers(service)
+	if err != nil {
+		return err
+	}
+
+	list.Workers = make([]roadrunner.ProcessState, 0)
+	for _, w := range workers {
+		ps, err := roadrunner.WorkerProcessState(w)
+		if err != nil {
+			continue
+		}
+
+		list.Workers = append(list.Workers, ps)
+	}
+	rpc.log.Debug("list of workers", "workers", list.Workers)
+	rpc.log.Info("successfully finished Workers method")
+	return nil
+}
diff --git a/plugins/informer/tests/.rr-informer.yaml b/plugins/informer/tests/.rr-informer.yaml
new file mode 100644
index 00000000..83ecd582
--- /dev/null
+++ b/plugins/informer/tests/.rr-informer.yaml
@@ -0,0 +1,13 @@
+server:
+  command: "php ../../../tests/client.php echo pipes"
+  user: ""
+  group: ""
+  env:
+    "RR_CONFIG": "/some/place/on/the/C134"
+    "RR_CONFIG2": "C138"
+  relay: "pipes"
+  relayTimeout: "20s"
+
+rpc:
+  listen: tcp://127.0.0.1:6001
+  disabled: false
\ No newline at end of file
diff --git a/plugins/informer/tests/informer_test.go b/plugins/informer/tests/informer_test.go
new file mode 100644
index 00000000..5f221305
--- /dev/null
+++ b/plugins/informer/tests/informer_test.go
@@ -0,0 +1,97 @@
+package tests
+
+import (
+	"net"
+	"net/rpc"
+	"os"
+	"os/signal"
+	"syscall"
+	"testing"
+	"time"
+
+	"github.com/spiral/endure"
+	"github.com/spiral/goridge/v2"
+	"github.com/spiral/roadrunner/v2"
+	"github.com/spiral/roadrunner/v2/plugins/config"
+	"github.com/spiral/roadrunner/v2/plugins/informer"
+	"github.com/spiral/roadrunner/v2/plugins/logger"
+	rpcPlugin "github.com/spiral/roadrunner/v2/plugins/rpc"
+	"github.com/spiral/roadrunner/v2/plugins/server"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestInformerInit(t *testing.T) {
+	cont, err := endure.NewContainer(nil, endure.SetLogLevel(endure.DebugLevel))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	cfg := &config.Viper{
+		Path:   ".rr-informer.yaml",
+		Prefix: "rr",
+	}
+
+	err = cont.RegisterAll(
+		cfg,
+		&server.Plugin{},
+		&logger.ZapLogger{},
+		&informer.Plugin{},
+		&rpcPlugin.Plugin{},
+		&Plugin1{},
+	)
+	assert.NoError(t, err)
+
+	err = cont.Init()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ch, err := cont.Serve()
+	assert.NoError(t, err)
+
+	sig := make(chan os.Signal, 1)
+	signal.Notify(sig, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
+
+	tt := time.NewTimer(time.Second * 15)
+
+	t.Run("InformerRpcTest", informerRpcTest)
+
+	for {
+		select {
+		case e := <-ch:
+			assert.Fail(t, "error", e.Error.Error())
+			err = cont.Stop()
+			if err != nil {
+				assert.FailNow(t, "error", err.Error())
+			}
+		case <-sig:
+			err = cont.Stop()
+			if err != nil {
+				assert.FailNow(t, "error", err.Error())
+			}
+			return
+		case <-tt.C:
+			// timeout
+			err = cont.Stop()
+			if err != nil {
+				assert.FailNow(t, "error", err.Error())
+			}
+			return
+		}
+	}
+}
+
+func informerRpcTest(t *testing.T) {
+	conn, err := net.Dial("tcp", "127.0.0.1:6001")
+	assert.NoError(t, err)
+	client := rpc.NewClientWithCodec(goridge.NewClientCodec(conn))
+	// WorkerList contains list of workers.
+	list := struct {
+		// Workers is list of workers.
+		Workers []roadrunner.ProcessState `json:"workers"`
+	}{}
+
+	err = client.Call("informer.Workers", "informer.plugin1", &list)
+	assert.NoError(t, err)
+	assert.Len(t, list.Workers, 10)
+}
diff --git a/plugins/informer/tests/test_plugin.go b/plugins/informer/tests/test_plugin.go
new file mode 100644
index 00000000..473b6de7
--- /dev/null
+++ b/plugins/informer/tests/test_plugin.go
@@ -0,0 +1,58 @@
+package tests
+
+import (
+	"context"
+	"time"
+
+	"github.com/spiral/roadrunner/v2"
+	"github.com/spiral/roadrunner/v2/interfaces/server"
+	"github.com/spiral/roadrunner/v2/plugins/config"
+)
+
+var testPoolConfig = roadrunner.PoolConfig{
+	NumWorkers:      10,
+	MaxJobs:         100,
+	AllocateTimeout: time.Second * 10,
+	DestroyTimeout:  time.Second * 10,
+	Supervisor: &roadrunner.SupervisorConfig{
+		WatchTick:       60,
+		TTL:             1000,
+		IdleTTL:         10,
+		ExecTTL:         10,
+		MaxWorkerMemory: 1000,
+	},
+}
+
+// Gauge //////////////
+type Plugin1 struct {
+	config config.Configurer
+	server server.Server
+}
+
+func (p1 *Plugin1) Init(cfg config.Configurer, server server.Server) error {
+	p1.config = cfg
+	p1.server = server
+	return nil
+}
+
+func (p1 *Plugin1) Serve() chan error {
+	errCh := make(chan error, 1)
+	return errCh
+}
+
+func (p1 *Plugin1) Stop() error {
+	return nil
+}
+
+func (p1 *Plugin1) Name() string {
+	return "informer.plugin1"
+}
+
+func (p1 *Plugin1) Workers() []roadrunner.WorkerBase {
+	pool, err := p1.server.NewWorkerPool(context.Background(), testPoolConfig, nil)
+	if err != nil {
+		panic(err)
+	}
+
+	return pool.Workers()
+}