使用scala时适用于lambda的AWS凭证不起作用 [英] AWS Credentials for lambda when working with scala not working
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问题描述
尝试使用通过DefaultCredentialProvider提供的凭据时，AWS lambda函数不起作用.
AWS lambda function does not work when attempting to work with credentials provided using the DefaultCredentialProvider.
我需要将凭据传递给S3才能运行.
I need to pass the credentials to S3 for it to run.
代码
def initializeAwsCredentials():AWSCredentials = {
var credentials: AWSCredentials = null
try {
credentials = new ProfileCredentialsProvider().getCredentials
} catch {
case e: Exception => {
throw new AmazonClientException(
"Cannot load the credentials from the credential profiles file. " +
"Please make sure that your credentials file is at the correct " +
"location (~/.aws/credentials), and is in valid format.",
e);
}
}
return credentials
}
def buildS3API(credentials: AWSCredentials): AmazonS3 = {
new AmazonS3Client(credentials)
}
// inside handle request
val credentials = initializeAwsCredentials()
println("Credetials have been retrieved successfully")
println("Build S3 API using the constructor provided")
val s3 = buildS3API(credentials)
s3.setRegion(region)
println("S3 API is now available")
错误
{
"errorMessage": "Cannot load the credentials from the credential profiles file. Please make sure that your credentials file is at the correct location (~/.aws/credentials), and is in valid format.",
"errorType": "com.amazonaws.AmazonClientException",
"stackTrace": [
"example.Main$.initializeAwsCredentials(Hello.scala:52)",
"example.Main$.handleRequest(Hello.scala:125)",
"example.Main.handleRequest(Hello.scala)",
"sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)",
"sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)",
"sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)",
"java.lang.reflect.Method.invoke(Method.java:498)"
],
"cause": {
"errorMessage": "java.lang.NullPointerException",
"errorType": "java.lang.NullPointerException",
"stackTrace": [
"com.amazonaws.auth.profile.ProfilesConfigFile.<init>(ProfilesConfigFile.java:143)",
"com.amazonaws.auth.profile.ProfilesConfigFile.<init>(ProfilesConfigFile.java:132)",
"com.amazonaws.auth.profile.ProfilesConfigFile.<init>(ProfilesConfigFile.java:99)",
"com.amazonaws.auth.profile.ProfileCredentialsProvider.getCredentials(ProfileCredentialsProvider.java:135)",
"example.Main$.initializeAwsCredentials(Hello.scala:45)",
"example.Main$.handleRequest(Hello.scala:125)",
"example.Main.handleRequest(Hello.scala)",
"sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)",
"sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)",
"sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)",
"java.lang.reflect.Method.invoke(Method.java:498)"
]
}
}
更新
使用 InstanceProfileCredentialsProvider 会引发错误:
val provider: InstanceProfileCredentialsProvider = new InstanceProfileCredentialsProvider()
credentials = provider.getCredentials()
给我错误:
"cause": {
"errorMessage": "Unable to load credentials from Amazon EC2 metadata service",
"errorType": "com.amazonaws.AmazonClientException",
"stackTrace": [
"com.amazonaws.auth.InstanceProfileCredentialsProvider.handleError(InstanceProfileCredentialsProvider.java:244)",
"com.amazonaws.auth.InstanceProfileCredentialsProvider.loadCredentials(InstanceProfileCredentialsProvider.java:225)",
"com.amazonaws.auth.InstanceProfileCredentialsProvider.getCredentials(InstanceProfileCredentialsProvider.java:124)",
"example.Main$.initializeAwsCredentials(Hello.scala:46)",
"example.Main$.handleRequest(Hello.scala:126)",
"example.Main.handleRequest(Hello.scala)",
"sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)",
"sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)",
"sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)",
"java.lang.reflect.Method.invoke(Method.java:498)"
],
"cause": {
"errorMessage": "Connection refused (Connection refused)",
"errorType": "java.net.ConnectException",
"stackTrace": [
"java.net.PlainSocketImpl.socketConnect(Native Method)",
"java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)",
"java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)",
"java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)",
"java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)",
"java.net.Socket.connect(Socket.java:589)",
"sun.net.NetworkClient.doConnect(NetworkClient.java:175)",
"sun.net.www.http.HttpClient.openServer(HttpClient.java:463)",
"sun.net.www.http.HttpClient.openServer(HttpClient.java:558)",
"sun.net.www.http.HttpClient.<init>(HttpClient.java:242)",
"sun.net.www.http.HttpClient.New(HttpClient.java:339)",
"sun.net.www.http.HttpClient.New(HttpClient.java:357)",
"sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)",
"sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)",
"sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)",
"sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)",
"com.amazonaws.internal.EC2MetadataClient.readResource(EC2MetadataClient.java:90)",
"com.amazonaws.internal.EC2MetadataClient.getDefaultCredentials(EC2MetadataClient.java:55)",
"com.amazonaws.auth.InstanceProfileCredentialsProvider.loadCredentials(InstanceProfileCredentialsProvider.java:186)",
"com.amazonaws.auth.InstanceProfileCredentialsProvider.getCredentials(InstanceProfileCredentialsProvider.java:124)",
"example.Main$.initializeAwsCredentials(Hello.scala:46)",
"example.Main$.handleRequest(Hello.scala:126)",
"example.Main.handleRequest(Hello.scala)",
"sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)",
"sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)",
"sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)",
"java.lang.reflect.Method.invoke(Method.java:498)"
]
}
}
}
使用lambda时，将以下内容配置为环境变量也会失败:
Configuring the following as environment variables when using lambda also fails:
Lambda was unable to configure your environment variables because the
environment variables you have provided contains reserved keys that are
currently not supported for modification. Reserved keys used in this
request: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY
推荐答案
我不确定您是否需要显式凭据提供程序.在AWS Lambda内，将通过lambda可以承担的角色自动提供凭据.我知道我从来没有明确地做过.
I am not sure you need an explicit credentials provider. Inside the AWS Lambda the credentials are automatically provided via the role the lambda can assume. I know I never did it explicitly.
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