github.com/erda-project/erda-infra@v1.0.9/base/servicehub/examples/run-content/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  	"context"
    19  	"time"
    20  
    21  	"github.com/erda-project/erda-infra/base/logs"
    22  	"github.com/erda-project/erda-infra/base/servicehub"
    23  )
    24  
    25  type config struct {
    26  	Message string `file:"message" flag:"msg" default:"hi" desc:"message to show" env:"HELLO_MESSAGE"`
    27  }
    28  
    29  type provider struct {
    30  	Cfg *config
    31  	Log logs.Logger
    32  }
    33  
    34  func (p *provider) Init(ctx servicehub.Context) error {
    35  	p.Log.Info("message: ", p.Cfg.Message)
    36  	return nil
    37  }
    38  
    39  func (p *provider) Run(ctx context.Context) error {
    40  	p.Log.Info("hello provider is running...")
    41  	tick := time.NewTicker(3 * time.Second)
    42  	defer tick.Stop()
    43  	for {
    44  		select {
    45  		case <-tick.C:
    46  			p.Log.Info("do something...")
    47  		case <-ctx.Done():
    48  			return nil
    49  		}
    50  	}
    51  }
    52  
    53  func init() {
    54  	servicehub.Register("hello-provider", &servicehub.Spec{
    55  		Services:    []string{"hello"},
    56  		Description: "hello for example",
    57  		ConfigFunc:  func() interface{} { return &config{} },
    58  		Creator: func() servicehub.Provider {
    59  			return &provider{}
    60  		},
    61  	})
    62  }
    63  
    64  func main() {
    65  	servicehub.Run(&servicehub.RunOptions{
    66  		Content: `
    67  hello-provider:
    68     message: "hello world"	
    69  `,
    70  	})
    71  }