github.com/deemoprobe/k8s-first-commit@v0.0.0-20230430165612-a541f1982be3/pkg/client/container_info.go (about)

     1  /*
     2  Copyright 2014 Google Inc. All rights reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  package client
    17  
    18  import (
    19  	"encoding/json"
    20  	"fmt"
    21  	"io/ioutil"
    22  	"net/http"
    23  )
    24  
    25  type ContainerInfo interface {
    26  	GetContainerInfo(host, name string) (interface{}, error)
    27  }
    28  
    29  type HTTPContainerInfo struct {
    30  	Client *http.Client
    31  	Port   uint
    32  }
    33  
    34  func (c *HTTPContainerInfo) GetContainerInfo(host, name string) (interface{}, error) {
    35  	request, err := http.NewRequest("GET", fmt.Sprintf("http://%s:%d/containerInfo?container=%s", host, c.Port, name), nil)
    36  	if err != nil {
    37  		return nil, err
    38  	}
    39  	response, err := c.Client.Do(request)
    40  	if err != nil {
    41  		return nil, err
    42  	}
    43  	defer response.Body.Close()
    44  	body, err := ioutil.ReadAll(response.Body)
    45  	if err != nil {
    46  		return nil, err
    47  	}
    48  	var data interface{}
    49  	err = json.Unmarshal(body, &data)
    50  	return data, err
    51  }
    52  
    53  // Useful for testing.
    54  type FakeContainerInfo struct {
    55  	data interface{}
    56  	err  error
    57  }
    58  
    59  func (c *FakeContainerInfo) GetContainerInfo(host, name string) (interface{}, error) {
    60  	return c.data, c.err
    61  }