services: check config only for enabled services

cmd/agola/cmd/serve.go

@@ -129,7 +129,7 @@ func serve(cmd *cobra.Command, args []string) error {
 		}
 	}
 
-	c, err := config.Parse(serveOpts.config)
+	c, err := config.Parse(serveOpts.config, serveOpts.components)
 	if err != nil {
 		return errors.Errorf("config error: %w", err)
 	}

internal/services/config/config.go

@@ -19,6 +19,7 @@ import (
 	"time"
 
 	"agola.io/agola/internal/util"
+
 	errors "golang.org/x/xerrors"
 	yaml "gopkg.in/yaml.v2"
 )
@@ -231,7 +232,7 @@ var defaultConfig = Config{
 	},
 }
 
-func Parse(configFile string) (*Config, error) {
+func Parse(configFile string, componentsNames []string) (*Config, error) {
 	configData, err := ioutil.ReadFile(configFile)
 	if err != nil {
 		return nil, err
@@ -242,7 +243,7 @@ func Parse(configFile string) (*Config, error) {
 		return nil, err
 	}
 
-	return c, Validate(c)
+	return c, Validate(c, componentsNames)
 }
 
 func validateWeb(w *Web) error {
@@ -262,7 +263,7 @@ func validateWeb(w *Web) error {
 	return nil
 }
 
-func Validate(c *Config) error {
+func Validate(c *Config, componentsNames []string) error {
 	// Global
 	if len(c.ID) > maxIDLength {
 		return errors.Errorf("id too long")
@@ -272,6 +273,7 @@ func Validate(c *Config) error {
 	}
 
 	// Gateway
+	if isComponentEnabled(componentsNames, "gateway") {
 		if c.Gateway.APIExposedURL == "" {
 			return errors.Errorf("gateway apiExposedURL is empty")
 		}
@@ -287,24 +289,30 @@ func Validate(c *Config) error {
 		if err := validateWeb(&c.Gateway.Web); err != nil {
 			return errors.Errorf("gateway web configuration error: %w", err)
 		}
+	}
 
 	// Configstore
+	if isComponentEnabled(componentsNames, "configstore") {
 		if c.Configstore.DataDir == "" {
 			return errors.Errorf("configstore dataDir is empty")
 		}
 		if err := validateWeb(&c.Configstore.Web); err != nil {
 			return errors.Errorf("configstore web configuration error: %w", err)
 		}
+	}
 
 	// Runservice
+	if isComponentEnabled(componentsNames, "runservice") {
 		if c.Runservice.DataDir == "" {
 			return errors.Errorf("runservice dataDir is empty")
 		}
 		if err := validateWeb(&c.Runservice.Web); err != nil {
 			return errors.Errorf("runservice web configuration error: %w", err)
 		}
+	}
 
 	// Executor
+	if isComponentEnabled(componentsNames, "executor") {
 		if c.Executor.DataDir == "" {
 			return errors.Errorf("executor dataDir is empty")
 		}
@@ -323,13 +331,17 @@ func Validate(c *Config) error {
 		default:
 			return errors.Errorf("executor driver type %q unknown", c.Executor.Driver.Type)
 		}
+	}
 
 	// Scheduler
+	if isComponentEnabled(componentsNames, "scheduler") {
 		if c.Scheduler.RunserviceURL == "" {
 			return errors.Errorf("scheduler runserviceURL is empty")
 		}
+	}
 
 	// Notification
+	if isComponentEnabled(componentsNames, "notification") {
 		if c.Notification.WebExposedURL == "" {
 			return errors.Errorf("notification webExposedURL is empty")
 		}
@@ -339,11 +351,21 @@ func Validate(c *Config) error {
 		if c.Notification.RunserviceURL == "" {
 			return errors.Errorf("notification runserviceURL is empty")
 		}
+	}
 
 	// Git server
+	if isComponentEnabled(componentsNames, "gitserver") {
 		if c.Gitserver.DataDir == "" {
 			return errors.Errorf("git server dataDir is empty")
 		}
+	}
 
 	return nil
 }
+
+func isComponentEnabled(componentsNames []string, name string) bool {
+	if util.StringInSlice(componentsNames, "all-base") && name != "executor" {
+		return true
+	}
+	return util.StringInSlice(componentsNames, name)
+}

internal/services/config/config_test.go

@@ -0,0 +1,257 @@
+// Copyright 2019 Sorint.lab
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+
+	errors "golang.org/x/xerrors"
+)
+
+func TestParseConfig(t *testing.T) {
+	tests := []struct {
+		name     string
+		services []string
+		in       string
+		err      error
+	}{
+		{
+			name:     "test config for all-base components and executor",
+			services: []string{"all-base", "executor"},
+			in: `
+gateway:
+  apiExposedURL: "http://localhost:8000"
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  gitserverURL: "http://localhost:4003"
+
+  web:
+    listenAddress: ":8000"
+  tokenSigning:
+    method: hmac
+    key: supersecretsigningkey
+  adminToken: "admintoken"
+
+scheduler:
+  runserviceURL: "http://localhost:4000"
+
+notification:
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  etcd:
+    endpoints: "http://localhost:2379"
+
+configstore:
+  dataDir: /data/agola/configstore
+  etcd:
+    endpoints: "http://localhost:2379"
+  objectStorage:
+    type: posix
+    path: /agola/configstore/ost
+  web:
+    listenAddress: ":4002"
+
+runservice:
+  #debug: true
+  dataDir: /opt/data/agola/runservice
+  etcd:
+    endpoints: "http://localhost:2379"
+  objectStorage:
+    type: posix
+    path: /agola/runservice/ost
+  web:
+    listenAddress: ":4000"
+
+executor:
+  allowPrivilegedContainers: true
+  dataDir: /data/agola/executor
+  toolboxPath: ./bin
+  runserviceURL: "http://localhost:4000"
+  web:
+    listenAddress: ":4001"
+  activeTasksLimit: 5
+  driver:
+    type: docker
+
+gitserver:
+  dataDir: /data/agola/gitserver
+  gatewayURL: "http://localhost:8000"
+  web:
+    listenAddress: ":4003"`,
+		},
+		{
+			name:     "test config for all-base components",
+			services: []string{"all-base"},
+			in: `
+gateway:
+  apiExposedURL: "http://localhost:8000"
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  gitserverURL: "http://localhost:4003"
+
+  web:
+    listenAddress: ":8000"
+  tokenSigning:
+    method: hmac
+    key: supersecretsigningkey
+  adminToken: "admintoken"
+
+scheduler:
+  runserviceURL: "http://localhost:4000"
+
+notification:
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  etcd:
+    endpoints: "http://localhost:2379"
+
+configstore:
+  dataDir: /data/agola/configstore
+  etcd:
+    endpoints: "http://localhost:2379"
+  objectStorage:
+    type: posix
+    path: /agola/configstore/ost
+  web:
+    listenAddress: ":4002"
+
+runservice:
+  dataDir: /data/agola/runservice
+  etcd:
+    endpoints: "http://localhost:2379"
+  objectStorage:
+    type: posix
+    path: /agola/runservice/ost
+  web:
+    listenAddress: ":4000"
+
+gitserver:
+  dataDir: /data/agola/gitserver
+  gatewayURL: "http://localhost:8000"
+  web:
+    listenAddress: ":4003"`,
+		},
+		{
+			name:     "test config for gateway, scheduler and notification",
+			services: []string{"gateway", "scheduler", "notification"},
+			in: `
+gateway:
+  apiExposedURL: "http://localhost:8000"
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  gitserverURL: "http://localhost:4003"
+
+  web:
+    listenAddress: ":8000"
+  tokenSigning:
+    method: hmac
+    key: supersecretsigningkey
+  adminToken: "admintoken"
+
+scheduler:
+  runserviceURL: "http://localhost:4000"
+
+notification:
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  etcd:
+    endpoints: "http://localhost:2379"
+
+configstore:
+  dataDir: 
+
+runservice:
+  dataDir: 
+
+gitserver:
+  dataDir:`,
+		},
+		{
+			name:     "test config for gateway, scheduler, notification and gitserver without dataDir",
+			services: []string{"gateway", "scheduler", "notification", "gitserver"},
+			in: `
+gateway:
+  apiExposedURL: "http://localhost:8000"
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  gitserverURL: "http://localhost:4003"
+
+  web:
+    listenAddress: ":8000"
+  tokenSigning:
+    method: hmac
+    key: supersecretsigningkey
+  adminToken: "admintoken"
+
+scheduler:
+  runserviceURL: "http://localhost:4000"
+
+notification:
+  webExposedURL: "http://localhost:8000"
+  runserviceURL: "http://localhost:4000"
+  configstoreURL: "http://localhost:4002"
+  etcd:
+    endpoints: "http://localhost:2379"
+
+configstore:
+  dataDir:
+
+runservice:
+  dataDir:
+
+gitserver:
+  dataDir:`,
+			err: errors.Errorf("git server dataDir is empty"),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			dir, err := ioutil.TempDir("", "ParseConfig")
+			if err != nil {
+				t.Fatalf("unexpected err: %v", err)
+			}
+			defer os.RemoveAll(dir)
+
+			content := []byte(tt.in)
+			err = ioutil.WriteFile(path.Join(dir, "config.yml"), content, 0644)
+			if err != nil {
+				t.Fatalf("unexpected err: %v", err)
+			}
+			if _, err := Parse(path.Join(dir, "config.yml"), tt.services); err != nil {
+				if tt.err == nil {
+					t.Fatalf("got error: %v, expected no error", err)
+				}
+				if err.Error() != tt.err.Error() {
+					t.Fatalf("got error: %v, want error: %v", err, tt.err)
+				}
+			} else {
+				if tt.err != nil {
+					t.Fatalf("got nil error, want error: %v", tt.err)
+				}
+			}
+		})
+	}
+}