github.com/aliyun/credentials-go@v1.4.7/credentials/providers/env.go (about)

     1  package providers
     2  
     3  import (
     4  	"fmt"
     5  	"os"
     6  )
     7  
     8  type EnvironmentVariableCredentialsProvider struct {
     9  }
    10  
    11  type EnvironmentVariableCredentialsProviderBuilder struct {
    12  	provider *EnvironmentVariableCredentialsProvider
    13  }
    14  
    15  func NewEnvironmentVariableCredentialsProviderBuilder() *EnvironmentVariableCredentialsProviderBuilder {
    16  	return &EnvironmentVariableCredentialsProviderBuilder{
    17  		provider: &EnvironmentVariableCredentialsProvider{},
    18  	}
    19  }
    20  
    21  func (builder *EnvironmentVariableCredentialsProviderBuilder) Build() (provider *EnvironmentVariableCredentialsProvider, err error) {
    22  	provider = builder.provider
    23  	return
    24  }
    25  
    26  func (provider *EnvironmentVariableCredentialsProvider) GetCredentials() (cc *Credentials, err error) {
    27  	accessKeyId := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_ID")
    28  
    29  	if accessKeyId == "" {
    30  		err = fmt.Errorf("unable to get credentials from enviroment variables, Access key ID must be specified via environment variable (ALIBABA_CLOUD_ACCESS_KEY_ID)")
    31  		return
    32  	}
    33  
    34  	accessKeySecret := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET")
    35  
    36  	if accessKeySecret == "" {
    37  		err = fmt.Errorf("unable to get credentials from enviroment variables, Access key secret must be specified via environment variable (ALIBABA_CLOUD_ACCESS_KEY_SECRET)")
    38  		return
    39  	}
    40  
    41  	securityToken := os.Getenv("ALIBABA_CLOUD_SECURITY_TOKEN")
    42  
    43  	cc = &Credentials{
    44  		AccessKeyId:     accessKeyId,
    45  		AccessKeySecret: accessKeySecret,
    46  		SecurityToken:   securityToken,
    47  		ProviderName:    provider.GetProviderName(),
    48  	}
    49  
    50  	return
    51  }
    52  
    53  func (provider *EnvironmentVariableCredentialsProvider) GetProviderName() string {
    54  	return "env"
    55  }