github.com/erda-project/erda-infra@v1.0.9/providers/health/examples/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  	"fmt"
    20  	"os"
    21  
    22  	"github.com/erda-project/erda-infra/base/servicehub"
    23  	"github.com/erda-project/erda-infra/providers/health"
    24  	_ "github.com/erda-project/erda-infra/providers/httpserver"
    25  )
    26  
    27  type provider struct {
    28  }
    29  
    30  func (p *provider) Init(ctx servicehub.Context) error {
    31  	h := ctx.Service("health").(health.Interface)
    32  	h.Register(p.HealthCheck)
    33  	return nil
    34  }
    35  
    36  func (p *provider) HealthCheck(context.Context) error {
    37  	return fmt.Errorf("error message")
    38  }
    39  
    40  func init() {
    41  	servicehub.Register("examples", &servicehub.Spec{
    42  		Services:     []string{"hello"},
    43  		Dependencies: []string{"health"},
    44  		Description:  "hello for example",
    45  		Creator: func() servicehub.Provider {
    46  			return &provider{}
    47  		},
    48  	})
    49  }
    50  
    51  func main() {
    52  	hub := servicehub.New()
    53  	hub.Run("examples", "", os.Args...)
    54  }