如何在 Spring 啟動 2 中為 CloudWatch 提供 Micrometer 憑證

Question

我正在使用 Spring Boot 2.0.9.RELEASE 並試圖弄清楚如何為我在 EC2 實例上運行的應用程序配置 CloudWatch 監控。 我所做的可以從我對這個問題的回答中看出。 但是我遇到了以下異常：

ERROR Oct 23, 2019 12:20:06.881 [pool-2-thread-30] {} io.micrometer.cloudwatch.CloudWatchMeterRegistry:134 - error sending metric data.
com.amazonaws.SdkClientException: Unable to load AWS credentials from any provider in the chain: [com.amazonaws.auth.profile.ProfileCredentialsProvider@32ee6fee: profile file cannot be null]
    at com.amazonaws.auth.AWSCredentialsProviderChain.getCredentials(AWSCredentialsProviderChain.java:136) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.getCredentialsFromContext(AmazonHttpClient.java:1225) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.runBeforeRequestHandlers(AmazonHttpClient.java:801) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:751) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:744) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:726) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:686) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:668) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:532) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:512) ~[aws-java-sdk-core-1.11.641.jar!/:?]
    at com.amazonaws.services.cloudwatch.AmazonCloudWatchClient.doInvoke(AmazonCloudWatchClient.java:2027) ~[aws-java-sdk-cloudwatch-1.11.641.jar!/:?]
    at com.amazonaws.services.cloudwatch.AmazonCloudWatchClient.invoke(AmazonCloudWatchClient.java:1994) ~[aws-java-sdk-cloudwatch-1.11.641.jar!/:?]
    at com.amazonaws.services.cloudwatch.AmazonCloudWatchClient.invoke(AmazonCloudWatchClient.java:1983) ~[aws-java-sdk-cloudwatch-1.11.641.jar!/:?]
    at com.amazonaws.services.cloudwatch.AmazonCloudWatchClient.executePutMetricData(AmazonCloudWatchClient.java:1754) ~[aws-java-sdk-cloudwatch-1.11.641.jar!/:?]
    at com.amazonaws.services.cloudwatch.AmazonCloudWatchAsyncClient$20.call(AmazonCloudWatchAsyncClient.java:972) [aws-java-sdk-cloudwatch-1.11.641.jar!/:?]
    at com.amazonaws.services.cloudwatch.AmazonCloudWatchAsyncClient$20.call(AmazonCloudWatchAsyncClient.java:966) [aws-java-sdk-cloudwatch-1.11.641.jar!/:?]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_191]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_191]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_191]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]

奇怪的是，我在之前的嘗試中已經設法將指標放入 CloudWatch，但我不知道我破壞了什么。 我沒有做夢。 我仍然可以看到指標^^。

根據我的閱讀，我必須對我的 EC2 實例的 IAM 角色做一些事情，但我在這里迷路了。

Answer 1

原來，罪魁禍首是以下財產：

cloud.aws.credentials.instanceProfile=false

我在我的配置中有它，因為我在某處讀到它需要在本地運行應用程序。 然而，在我的情況下，情況並非如此。

不知何故，它滑到了我的生產配置中。 正如屬性名稱所暗示的那樣，將其設置為 false 將使 Spring 啟動不使用運行應用程序的 ec2-instance 的配置文件。 因此，除非您以其他方式提供憑證，否則應用程序將無法將指標推送到 CloudWatch。