allow to work with multiple configs

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

cmd/servicechecker/main.go

@@ -3,10 +3,8 @@ package main
 import (
 	"context"
 	"fmt"
-	"io/fs"
 	"os"
 	"os/signal"
-	"path/filepath"
 	"time"
 
 	openapi_v3 "github.com/google/gnostic/openapiv3"
@@ -64,67 +62,14 @@ func main() {
 		l.Fatal(ctx, "failed to init meter", err)
 	}
 
-	meters["default"] = m
+	meters[uuid.Nil.String()] = m
-
-	l.Info(ctx, "try to parse config.yaml")
-	f, err := os.Open("config.yaml")
-	if err != nil {
-		l.Fatal(ctx, "failed to open config", err)
-	}
 
 	cfg := &config.Config{}
 
-	if err = config.Parse(f, cfg); err != nil {
+	l.Info(ctx, "try to load config")
-		f.Close()
+	if err := config.Load(config.Filesytem, "config.yaml", cfg); err != nil {
 		l.Fatal(ctx, "failed to open config", err)
 	}
-	f.Close()
-
-	if cfg.App.ChecksDir != "" {
-		var configFiles []string
-
-		if !filepath.IsAbs(cfg.App.ChecksDir) {
-			dir, _ := os.Getwd()
-			cfg.App.ChecksDir = filepath.Clean(filepath.Join(dir, cfg.App.ChecksDir))
-		}
-
-		err = filepath.WalkDir(cfg.App.ChecksDir, func(path string, info fs.DirEntry, err error) error {
-			if err != nil {
-				return err
-			}
-
-			if info.IsDir() || !info.Type().IsRegular() {
-				return nil
-			}
-
-			if filepath.Ext(info.Name()) != ".yaml" {
-				return nil
-			}
-
-			configFiles = append(configFiles, path)
-
-			return nil
-		})
-		if err != nil {
-			l.Fatal(ctx, fmt.Sprintf("error loading config: %s", cfg.App.ChecksDir), err)
-		}
-
-		for _, configFile := range configFiles {
-			l.Info(ctx, "try to parse "+configFile)
-			f, err := os.Open(configFile)
-			if err != nil {
-				l.Fatal(ctx, "failed to open config", err)
-			}
-
-			checks := []*config.CheckConfig{}
-			if err = config.Parse(f, &checks); err != nil {
-				f.Close()
-				l.Fatal(ctx, "failed to open config", err)
-			}
-			f.Close()
-			cfg.App.Checks = append(cfg.App.Checks, checks...)
-		}
-	}
 
 	if !cfg.App.MultiUser {
 		m.Init(
@@ -214,7 +159,7 @@ func main() {
 
 		var mtr meter.Meter
 		if !cfg.App.MultiUser {
-			mtr = meters["default"]
+			mtr = meters[uuid.Nil.String()]
 		} else {
 			if v, ok := meters[check.User]; ok && v != nil {
 				mtr = v

go.mod

@@ -12,6 +12,7 @@ require (
 	go.unistack.org/micro-codec-jsonpb/v3 v3.10.3
 	go.unistack.org/micro-codec-proto/v3 v3.10.2
 	go.unistack.org/micro-codec-yaml/v3 v3.10.2
+	go.unistack.org/micro-config-file/v3 v3.8.10
 	go.unistack.org/micro-meter-victoriametrics/v3 v3.8.9
 	go.unistack.org/micro-proto/v3 v3.4.1
 	go.unistack.org/micro-server-http/v3 v3.11.34
@@ -20,6 +21,7 @@ require (
 )
 
 require (
+	dario.cat/mergo v1.0.1 // indirect
 	github.com/google/gnostic-models v0.6.9-0.20230804172637-c7be7c783f49 // indirect
 	github.com/jonboulle/clockwork v0.4.0 // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
@@ -29,7 +31,7 @@ require (
 	golang.org/x/exp v0.0.0-20240613232115-7f521ea00fb8 // indirect
 	golang.org/x/net v0.30.0 // indirect
 	golang.org/x/sys v0.27.0 // indirect
-	golang.org/x/text v0.19.0 // indirect
+	golang.org/x/text v0.20.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20241113202542-65e8d215514f // indirect
 	google.golang.org/grpc v1.68.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -593,6 +593,8 @@ cloud.google.com/go/workflows v1.8.0/go.mod h1:ysGhmEajwZxGn1OhGOGKsTXc5PyxOc0vf
 cloud.google.com/go/workflows v1.9.0/go.mod h1:ZGkj1aFIOd9c8Gerkjjq7OW7I5+l6cSvT3ujaO/WwSA=
 cloud.google.com/go/workflows v1.10.0/go.mod h1:fZ8LmRmZQWacon9UCX1r/g/DfAXx5VcPALq2CxzdePw=
 dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 gioui.org v0.0.0-20210308172011-57750fc8a0a6/go.mod h1:RSH6KIUZ0p2xy5zHDxgAM4zumjgTw83q2ge/PI+yyw8=
 git.sr.ht/~sbinet/gg v0.3.1/go.mod h1:KGYtlADtqsqANL9ueOFkWymvzUvLMQllU5Ixo+8v3pc=
@@ -908,6 +910,8 @@ go.unistack.org/micro-codec-proto/v3 v3.10.2 h1:9iUQjBjTsd/RgIqB5rAQMZE0CYWngoW9
 go.unistack.org/micro-codec-proto/v3 v3.10.2/go.mod h1:54e1jb6aLL9obJUwJjtVupE5zY4PugTcMSqWDhz9aC4=
 go.unistack.org/micro-codec-yaml/v3 v3.10.2 h1:02I9XzhaBHqZU8Vd5e2zhf8j4foJ4muPT/x4gdR6E4c=
 go.unistack.org/micro-codec-yaml/v3 v3.10.2/go.mod h1:A/tYj7x9CRhuin7WxeIvnuo8bMDrZYcJkogVYN8X7rU=
+go.unistack.org/micro-config-file/v3 v3.8.10 h1:/IyD/i6I7Ic8jCNq7ZsTpWT8sToNG14gIFkSVPxbNpY=
+go.unistack.org/micro-config-file/v3 v3.8.10/go.mod h1:w7uw5KxK3H2OrZwX4p0hQHbp9UzwDODYqJvdofySgxY=
 go.unistack.org/micro-meter-victoriametrics/v3 v3.8.9 h1:ZXCS0eFiSdvcFYxpxV2Q77gfwAjpIRydwAEI1QBrwuQ=
 go.unistack.org/micro-meter-victoriametrics/v3 v3.8.9/go.mod h1:xODJQ0Nu/F8k34D/z2ITL91OskI/C674XCkugAxmc3Q=
 go.unistack.org/micro-proto/v3 v3.4.1 h1:UTjLSRz2YZuaHk9iSlVqqsA50JQNAEK2ZFboGqtEa9Q=
@@ -1202,8 +1206,8 @@ golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
-golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.20.0 h1:gK/Kv2otX8gz+wn7Rmb3vT96ZwuoxnQlY+HlJVj7Qug=
-golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+golang.org/x/text v0.20.0/go.mod h1:D4IsuqiFMhST5bX19pQ9ikHC2GsaKyk/oF+pn3ducp4=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=

pkg/config/config.go

@@ -1,21 +1,22 @@
 package config
 
 import (
+	"fmt"
 	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
 
+	"github.com/google/uuid"
 	yamlcodec "go.unistack.org/micro-codec-yaml/v3"
 	mtime "go.unistack.org/micro/v3/util/time"
 )
 
-type AppConfig struct {
+var Filesytem fs.FS
-	ChecksDir string         `json:"checks_dir,omitempty" yaml:"checks_dir,omitempty"`
-	Checks    []*CheckConfig `json:"checks,omitempty" yaml:"checks,omitempty"`
-	MultiUser bool           `json:"multi_user,omitempty" yaml:"multi_user,omitempty"`
-}
 
-type MeterConfig struct {
+func init() {
-	Addr string `json:"addr,omitempty" yaml:"addr,omitempty"`
+	dir, _ := os.Getwd()
-	Path string `json:"path,omitempty" yaml:"path,omitempty"`
+	Filesytem = os.DirFS(dir)
 }
 
 type Config struct {
@@ -23,13 +24,25 @@ type Config struct {
 	Meter *MeterConfig `json:"meter,omitempty" yaml:"meter,omitempty"`
 }
 
+type AppConfig struct {
+	ChecksFiles []string       `json:"checks_files,omitempty" yaml:"checks_files,omitempty"`
+	Checks      []*CheckConfig `json:"checks,omitempty" yaml:"checks,omitempty"`
+	MultiUser   bool           `json:"multi_user,omitempty" yaml:"multi_user,omitempty"`
+}
+
+type MeterConfig struct {
+	Addr string `json:"addr,omitempty" yaml:"addr,omitempty"`
+	Path string `json:"path,omitempty" yaml:"path,omitempty"`
+}
+
 type CheckConfig struct {
-	Name     string         `json:"name,omitempty" yaml:"name,omitempty"`
+	Name       string         `json:"name,omitempty" yaml:"name,omitempty"`
-	Tasks    []*TaskConfig  `json:"tasks,omitempty" yaml:"tasks,omitempty"`
+	User       string         `json:"user,omitempty" yaml:"user,omitempty"`
-	Timeout  mtime.Duration `json:"timeout,omitempty" yaml:"timeout,omitempty"`
+	Tasks      []*TaskConfig  `json:"tasks,omitempty" yaml:"tasks,omitempty"`
-	Interval mtime.Duration `json:"interval,omitempty" yaml:"interval,omitempty"`
+	TasksFiles []string       `json:"tasks_files,omitempty" yaml:"tasks_files,omitempty"`
-	Active   bool           `json:"active,omitempty" yaml:"active,omitempty"`
+	Timeout    mtime.Duration `json:"timeout,omitempty" yaml:"timeout,omitempty"`
-	User     string         `json:"user,omitempty" yaml:"user,omitempty"`
+	Interval   mtime.Duration `json:"interval,omitempty" yaml:"interval,omitempty"`
+	Active     bool           `json:"active,omitempty" yaml:"active,omitempty"`
 }
 
 type HTTPConfig struct {
@@ -66,11 +79,84 @@ type TaskConfig struct {
 	Active    bool           `json:"active,omitempty" yaml:"active,omitempty"`
 }
 
-func Parse(r io.Reader, cfg interface{}) error {
+func Load(fileSystem fs.FS, name string, cfg *Config) error {
-	buf, err := io.ReadAll(r)
+	if err := load(fileSystem, name, cfg); err != nil {
+		return err
+	}
+
+	for _, checksPatternFile := range cfg.App.ChecksFiles {
+		checkRoot := filepath.Dir(checksPatternFile)
+		checksFiles := fsWalkDir(fileSystem, checkRoot, checksPatternFile)
+		for _, checkFile := range checksFiles {
+			checks := []*CheckConfig{}
+			if err := load(fileSystem, checkFile, &checks); err != nil {
+				return err
+			}
+			for ckecksIdx := range checks {
+				for _, tasksPatternFile := range checks[ckecksIdx].TasksFiles {
+					taskRoot := filepath.Join(filepath.Dir(checksPatternFile), filepath.Dir(tasksPatternFile))
+					tasksFiles := fsWalkDir(fileSystem, taskRoot, filepath.Join(filepath.Dir(checksPatternFile), tasksPatternFile))
+					for tasksIdx := range tasksFiles {
+						tasks := []*TaskConfig{}
+						if err := load(fileSystem, tasksFiles[tasksIdx], &tasks); err != nil {
+							return err
+						}
+						checks[ckecksIdx].Tasks = append(checks[ckecksIdx].Tasks, tasks...)
+					}
+				}
+				cfg.App.Checks = append(cfg.App.Checks, checks[ckecksIdx])
+			}
+		}
+	}
+
+	if !cfg.App.MultiUser {
+		for _, check := range cfg.App.Checks {
+			check.User = uuid.Nil.String()
+		}
+	}
+
+	return nil
+}
+
+func fsWalkDir(fileSystem fs.FS, root string, pattern string) []string {
+	var files []string
+	fs.WalkDir(fileSystem, root, func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if d.IsDir() || !d.Type().IsRegular() {
+			return nil
+		}
+		var ok bool
+		if ok, err = filepath.Match(pattern, path); err == nil && ok {
+			files = append(files, path)
+		} else {
+			return err
+		}
+
+		return nil
+	})
+	return files
+}
+
+func load(fileSystem fs.FS, name string, cfg interface{}) error {
+	f, err := fileSystem.Open(name)
 	if err != nil {
 		return err
 	}
 
-	return yamlcodec.NewCodec().Unmarshal(buf, cfg)
+	c := yamlcodec.NewCodec()
+	var buf []byte
+
+	if buf, err = io.ReadAll(f); err == nil {
+		if err = f.Close(); err == nil {
+			err = c.Unmarshal(buf, cfg)
+		}
+	}
+
+	if err != nil {
+		return fmt.Errorf("failed to load config %w", err)
+	}
+
+	return nil
 }