github.com/erda-project/erda-infra@v1.0.9/base/servicehub/examples/simple/main.go (about)

     1  // Copyright (c) 2021 Terminus, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package main
    16  
    17  import (
    18  	"os"
    19  
    20  	"github.com/erda-project/erda-infra/base/logs"
    21  	"github.com/erda-project/erda-infra/base/servicehub"
    22  )
    23  
    24  type config struct {
    25  	Message   string    `file:"message" flag:"msg" default:"hi" desc:"message to show" env:"HELLO_MESSAGE"`
    26  	SubConfig subConfig `file:"sub"`
    27  }
    28  
    29  type subConfig struct {
    30  	Name string `file:"name" flag:"hello_name" default:"recallsong" desc:"name to show"`
    31  }
    32  
    33  type provider struct {
    34  	Cfg *config     // auto inject this field
    35  	Log logs.Logger // auto inject this field
    36  }
    37  
    38  func init() {
    39  	servicehub.Register("hello-provider", &servicehub.Spec{
    40  		Services:    []string{"hello"},
    41  		Description: "hello for example",
    42  		ConfigFunc:  func() interface{} { return &config{} },
    43  		Creator: func() servicehub.Provider {
    44  			return &provider{}
    45  		},
    46  	})
    47  }
    48  
    49  func main() {
    50  	hub := servicehub.New()
    51  	hub.Run("examples", "", os.Args...)
    52  }