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module-aws

Overview

This is a module that can be added to a Zipkin Server deployment to add Amazon Web Services based collection and storage features.

Quick start

The easiest way is to use our [../docker][Docker image]. Please prefer this to building your own distribution.

JRE 8 is required to run Zipkin server.

Fetch the latest released executable jar for Zipkin server and module jar for AWS. Run Zipkin server with the AWS module enabled.

For example, to use AWS SQS:

$ curl -sSL https://zipkin.io/quickstart.sh | bash -s
$ curl -sSL https://zipkin.io/quickstart.sh | bash -s io.zipkin.aws:zipkin-module-aws:LATEST:module sqs.jar
$ SQS_QUEUE_URL=https://ap-southeast-1.queue.amazonaws.com/012345678901/zipkin \
  java -Dloader.path='aws.jar,aws.jar!/lib' -Dspring.profiles.active=aws \
       -cp zipkin.jar org.springframework.boot.loader.launch.PropertiesLauncher

Note: By default, this module will search for credentials in the $HOME/.aws directory.

After executing these steps, applications can send spans http://localhost:9411/api/v2/spans (or the legacy endpoint http://localhost:9411/api/v1/spans)

The Zipkin server can be further configured as described in the Zipkin server documentation.

Configuration

Configuration can be applied either through environment variables or an external Zipkin configuration file. The module includes default configuration that can be used as a reference for users that prefer a file based approach.

The following variables apply to multiple, if not all options:

Environment Variable Description
AWS_REGION Optional AWS Region, implicitly sets STS and Kinesis regions if not provided, defaults to us-east-1

Note: By default, this module will search for credentials in the $HOME/.aws directory.

Kinesis Collector

Kinesis Collector is enabled when KINESIS_STREAM_NAME is set. The following settings apply in this case.

Environment Variable Property Description
KINESIS_STREAM_NAME zipkin.collector.kinesis.stream-name The name of the Kinesis stream to read from
KINESIS_APP_NAME zipkin.collector.kinesis.app-name The name for this app to use for sharing a stream. Defaults to zipkin
KINESIS_AWS_ACCESS_KEY_ID zipkin.collector.kinesis.aws-access-key-id Optional AWS Access Key
KINESIS_AWS_SECRET_ACCESS_KEY zipkin.collector.kinesis.aws-secret-access-key Optional AWS Secret Access Key
KINESIS_AWS_REGION zipkin.collector.kinesis.aws-kinesis-region Optional AWS Kinesis Region. Defaults to AWS_REGION
KINESIS_AWS_STS_ROLE_ARN zipkin.collector.kinesis.aws-sts-role-arn Optional IAM role ARN for cross account role delegation
KINESIS_AWS_STS_REGION zipkin.collector.kinesis.aws-kinesis-region Optional AWS region ID when using STS. Defaults to KINESIS_AWS_REGION

Example usage:

$ KINESIS_STREAM_NAME=zipkin \
  java -Dloader.path='aws.jar,aws.jar!/lib' -Dspring.profiles.active=aws \
    -cp zipkin.jar org.springframework.boot.loader.launch.PropertiesLauncher

Security

The auto configuration library uses the AWS Kinesis Java SDK and follows credential configuration resolution provided by the DefaultAWSCredentialsProviderChain. In the case of using IAM role delegation the STSAssumeRoleSessionCredentialsProvider is used.

The following IAM permissions are required by the KinesisCollector

  • kinesis:DescribeStream
  • kinesis:GetRecords
  • kinesis:GetShardIterator
  • dynamodb:CreateTable
  • dynamodb:DescribeTable
  • dynamodb:GetItem
  • dynamodb:PutItem
  • dynamodb:Scan
  • dynamodb:UpdateItem
  • dynamodb:DeleteItem
  • cloudwatch:PutMetricData

Testing

Once your collector is enabled, verify it is running:

$ curl -s localhost:9411/health|jq .zipkin.details.KinesisCollector
{
  "status": "UP"
}

Now, you can send a test message like below:

# send a json list with a single json-encoded span
$ aws kinesis put-record --stream-name $KINESIS_STREAM_NAME --partition-key $(hostname) --data '[{
  "traceId": "86154a4ba6e91385",
  "parentId": "86154a4ba6e91385",
  "id": "4d1e00c0db9010db",
  "kind": "CLIENT",
  "name": "get",
  "timestamp": 1472470996199000,
  "duration": 207000,
  "localEndpoint": {
    "serviceName": "frontend",
    "ipv4": "127.0.0.1"
  },
  "tags": {
    "http.path": "/api"
  }
}]'
# read it back using the zipkin v1 api
$ curl -s localhost:9411/api/v1/trace/86154a4ba6e91385|jq .[].traceId
"86154a4ba6e91385"

SQS Collector

SQS Collector is enabled when SQS_QUEUE_URL is set. The following settings apply in this case.

Environment Variable Property Description
SQS_QUEUE_URL zipkin.collector.sqs.queue-url The AWS SQS queue URL as provided in the AWS Console
SQS_PARALLELISM zipkin.collector.sqs.parallelism The count of collectors that poll SQS in parallel. Defaults to 1
SQS_WAIT_TIME_SECONDS zipkin.collector.sqs.wait-time-seconds How long to wait for messages from SQS before making a new API call. Defaults to 20
SQS_MAX_NUMBER_OF_MESSAGES zipkin.collector.sqs.max-number-of-messages Max number of messages to accept for each SQS API call. Defaults to 10
SQS_AWS_ACCESS_KEY_ID zipkin.collector.sqs.aws-access-key-id Optional AWS Access Key
SQS_AWS_SECRET_ACCESS_KEY zipkin.collector.sqs.aws-secret-access-key Optional AWS Secret Access Key
SQS_AWS_STS_ROLE_ARN zipkin.collector.sqs.aws-sts-role-arn Optional IAM role ARN for cross account role delegation
SQS_AWS_STS_REGION zipkin.collector.sqs.aws-sqs-region Optional AWS region ID when using STS. Defaults to AWS_REGION

Example usage:

$ SQS_QUEUE_URL=https://ap-southeast-1.queue.amazonaws.com/012345678901/zipkin \
  java -Dloader.path='aws.jar,aws.jar!/lib' -Dspring.profiles.active=aws \
    -cp zipkin.jar org.springframework.boot.loader.launch.PropertiesLauncher

Security

The auto configuration library uses the AWS SQS Java SDK and follows credential configuration resolution provided by the DefaultAWSCredentialsProviderChain. In the case of using IAM role delegation the STSAssumeRoleSessionCredentialsProvider is used.

The following IAM permissions are required by the SQSCollector

  • sqs:ReceiveMessage
  • sqs:DeleteMessageBatch

Testing

Once your collector is enabled, verify it is running:

curl -s localhost:9411/health|jq .zipkin.details.SQSCollector
{
  "status": "UP"
}

Now, you can send a test message like below:

# send a json list with a single json-encoded span
$ aws sqs send-message --queue-url $SQS_QUEUE_URL --message-body '[{
  "traceId": "86154a4ba6e91385",
  "parentId": "86154a4ba6e91385",
  "id": "4d1e00c0db9010db",
  "kind": "CLIENT",
  "name": "get",
  "timestamp": 1472470996199000,
  "duration": 207000,
  "localEndpoint": {
    "serviceName": "frontend",
    "ipv4": "127.0.0.1"
  },
  "tags": {
    "http.path": "/api"
  }
}]'
# read it back using the zipkin v1 api
$ curl -s localhost:9411/api/v1/trace/86154a4ba6e91385|jq .[].traceId
"86154a4ba6e91385"

Elasticsearch Storage

Amazon Elasticsearch Service is enabled when STORAGE_TYPE=elasticsearch and ES_HOSTS includes an Amazon Web Services hostname or ES_AWS_DOMAIN is set. The following settings apply in this case.

Environment Variable Property Description
ES_HOSTS zipkin.storage.elasticsearch.hosts An AWS-hosted elasticsearch installation (e.g. https://search-domain-xyzzy.us-west-2.es.amazonaws.com)
ES_AWS_DOMAIN zipkin.storage.elasticsearch.domain The name of the AWS-hosted elasticsearch domain to use. Supercedes any ES_HOSTS.
ES_AWS_REGION zipkin.storage.elasticsearch.aws.region Optional AWS region ID when looking up ES_AWS_DOMAIN. Defaults to AWS_REGION

Note: Zipkin will sign outbound requests to the cluster.

Example usage:

$ STORAGE_TYPE=elasticsearch ES_HOSTS=https://search-mydomain-2rlih66ibw43ftlk4342ceeewu.ap-southeast-1.es.amazonaws.com \
  java -Dloader.path='aws.jar,aws.jar!/lib' -Dspring.profiles.active=aws \
    -cp zipkin.jar org.springframework.boot.loader.launch.PropertiesLauncher

Alternatively, you can have zipkin implicitly lookup your domain's URL:

$ STORAGE_TYPE=elasticsearch ES_AWS_DOMAIN=mydomain ES_AWS_REGION=ap-southeast-1 \
  java -Dloader.path='aws.jar,aws.jar!/lib' -Dspring.profiles.active=aws \
    -cp zipkin.jar org.springframework.boot.loader.launch.PropertiesLauncher

Security

Before you start, make sure your CLI credentials are setup as Zipkin will read them:

$ aws es describe-elasticsearch-domain --domain-name mydomain|jq .DomainStatus.Endpoint
"search-mydomain-2rlih66ibw43ftlk4342ceeewu.ap-southeast-1.es.amazonaws.com"

ES_AWS_DOMAIN triggers the same request signing behavior as with ES_HOSTS, but requires additional IAM permission to describe the given domain.

Testing

Once your storage is enabled, verify it is running:

$ curl -s localhost:9411/health|jq .zipkin.details.ElasticsearchStorage
{
  "status": "UP"
}

XRay Storage

Amazon XRay Storage is enabled when STORAGE_TYPE=xray. The following settings apply in this case.

Environment Variable Property Description
AWS_XRAY_DAEMON_ADDRESS zipkin.storage.xray.daemon-address Amazon X-Ray Daemon UDP daemon address. Defaults to localhost:2000

Example usage:

$ STORAGE_TYPE=xray java -Dloader.path='aws.jar,aws.jar!/lib' -Dspring.profiles.active=aws \
    -cp zipkin.jar org.springframework.boot.loader.launch.PropertiesLauncher

Experimental

  • This is currently experimental!
  • This currently only supports sending to an XRay UDP daemon, not reading back spans from the service.
  • This requires reporters send 128-bit trace IDs, with the first 32bits as epoch seconds
  • Check openzipkin/b3-propagation#6 for tracers that support epoch128 trace IDs

Testing

Once your storage is enabled, verify it is running:

$ curl -s localhost:9411/health|jq .zipkin.details.XRayUDPStorage
{
  "status": "UP"
}