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Cloud Posse

prometheus-to-cloudwatch Build Status Latest Release Slack Community

Utility for scraping Prometheus metrics from a Prometheus client endpoint and publishing them to CloudWatch


This project is part of our comprehensive "SweetOps" approach towards DevOps. <img align="right" title="Share via Email" src="https://docs.cloudposse.com/images/ionicons/ios-email-outline-2.0.1-16x16-999999.svg"/> <img align="right" title="Share on Google+" src="https://docs.cloudposse.com/images/ionicons/social-googleplus-outline-2.0.1-16x16-999999.svg" /> <img align="right" title="Share on Facebook" src="https://docs.cloudposse.com/images/ionicons/social-facebook-outline-2.0.1-16x16-999999.svg" /> <img align="right" title="Share on Reddit" src="https://docs.cloudposse.com/images/ionicons/social-reddit-outline-2.0.1-16x16-999999.svg" /> <img align="right" title="Share on LinkedIn" src="https://docs.cloudposse.com/images/ionicons/social-linkedin-outline-2.0.1-16x16-999999.svg" /> <img align="right" title="Share on Twitter" src="https://docs.cloudposse.com/images/ionicons/social-twitter-outline-2.0.1-16x16-999999.svg" />

It's 100% Open Source and licensed under the APACHE2.

Screenshots

kube-state-metrics-to-cloudwatch kube-state-metrics to CloudWatch

Usage

NOTE: The module accepts parameters as command-line arguments or as ENV variables (or any combination of command-line arguments and ENV vars). Command-line arguments take precedence over ENV vars

Command-line argumentENV varDescription
aws_access_key_idAWS_ACCESS_KEY_IDAWS access key Id with permissions to publish CloudWatch metrics
aws_secret_access_keyAWS_SECRET_ACCESS_KEYAWS secret access key with permissions to publish CloudWatch metrics
cloudwatch_namespaceCLOUDWATCH_NAMESPACECloudWatch Namespace
cloudwatch_regionCLOUDWATCH_REGIONCloudWatch AWS Region
cloudwatch_publish_timeoutCLOUDWATCH_PUBLISH_TIMEOUTCloudWatch publish timeout in seconds
prometheus_scrape_intervalPROMETHEUS_SCRAPE_INTERVALPrometheus scrape interval in seconds
prometheus_scrape_urlPROMETHEUS_SCRAPE_URLThe URL to scrape Prometheus metrics from
cert_pathCERT_PATHPath to SSL Certificate file (when using SSL for prometheus_scrape_url)
keyPathKEY_PATHPath to Key file (when using SSL for prometheus_scrape_url)
accept_invalid_certACCEPT_INVALID_CERTAccept any certificate during TLS handshake. Insecure, use only for testing
additional_dimensionADDITIONAL_DIMENSIONAdditional dimension specified by NAME=VALUE
replace_dimensionsREPLACE_DIMENSIONSReplace dimensions specified by NAME=VALUE,...
include_metricsINCLUDE_METRICSOnly publish the specified metrics (comma-separated list of glob patterns)
exclude_metricsEXCLUDE_METRICSNever publish the specified metrics (comma-separated list of glob patterns)
include_dimensions_for_metricsINCLUDE_DIMENSIONS_FOR_METRICSOnly publish the specified dimensions for metrics (semi-colon-separated key values of comma-separated dimensions of METRIC=dim1,dim2;, e.g. 'flink_jobmanager=job_id')
exclude_dimensions_for_metricsEXCLUDE_DIMENSIONS_FOR_METRICSNever publish the specified dimensions for metrics (semi-colon-separated key values of comma-separated dimensions of METRIC=dim1,dim2;, e.g. 'flink_jobmanager=job,host;zk_up=host,pod;')
force_high_resFORCE_HIGH_RESWhether publish all metrics with high resolution to Cloudwatch or only those labeled with __cw_high_res.

NOTE: If AWS credentials are not provided in the command-line arguments (aws_access_key_id and aws_secret_access_key) or ENV variables (AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY), the chain of credential providers will search for credentials in the shared credential file and EC2 Instance Roles. This is useful when deploying the module in AWS on Kubernetes with kube2iam, which will provide IAM credentials to containers running inside a Kubernetes cluster, allowing the module to assume an IAM Role with permissions to publish metrics to CloudWatch.

Examples

Build Go program

go get

CGO_ENABLED=0 go build -v -o "./dist/bin/prometheus-to-cloudwatch" *.go

Run locally

export AWS_ACCESS_KEY_ID=XXXXXXXXXXXXXXXXXXXXXXX
export AWS_SECRET_ACCESS_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
export CLOUDWATCH_NAMESPACE=kube-state-metrics
export CLOUDWATCH_REGION=us-east-1
export CLOUDWATCH_PUBLISH_TIMEOUT=5
export PROMETHEUS_SCRAPE_INTERVAL=30
export PROMETHEUS_SCRAPE_URL=http://xxxxxxxxxxxx:8080/metrics
export CERT_PATH=""
export KEY_PATH=""
export ACCEPT_INVALID_CERT=true
# Optionally, restrict the subset of metrics to be exported to CloudWatch
# export INCLUDE_METRICS='jvm_*'
# export EXCLUDE_METRICS='jvm_memory_*,jvm_buffer_*'
# export INCLUDE_DIMENSIONS_FOR_METRICS='jvm_memory_*=pod_id'
# export EXCLUDE_DIMENSIONS_FOR_METRICS='jvm_memory_*=pod;jvm_buffer=job,pod'

./dist/bin/prometheus-to-cloudwatch

Build Docker image

NOTE: it will download all Go dependencies and then build the program inside the container (see Dockerfile)

docker build --tag prometheus-to-cloudwatch  --no-cache=true .

Run in a Docker container

docker run -i --rm \
        -e AWS_ACCESS_KEY_ID=XXXXXXXXXXXXXXXXXXXXXXX \
        -e AWS_SECRET_ACCESS_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX \
        -e CLOUDWATCH_NAMESPACE=kube-state-metrics \
        -e CLOUDWATCH_REGION=us-east-1 \
        -e CLOUDWATCH_PUBLISH_TIMEOUT=5 \
        -e PROMETHEUS_SCRAPE_INTERVAL=30 \
        -e PROMETHEUS_SCRAPE_URL=http://xxxxxxxxxxxx:8080/metrics \
        -e CERT_PATH="" \
        -e KEY_PATH="" \
        -e ACCEPT_INVALID_CERT=true \
        -e INCLUDE_METRICS="" \
        -e EXCLUDE_METRICS="" \
        -e INCLUDE_DIMENSIONS_FOR_METRICS="" \
        -e EXCLUDE_DIMENSIONS_FOR_METRICS="" \
        prometheus-to-cloudwatch

Run on Kubernetes

To run on Kubernetes, we will deploy two Helm charts

  1. kube-state-metrics - to generates metrics about the state of various objects inside the cluster, such as deployments, nodes and pods

  2. prometheus-to-cloudwatch - to scrape metrics from kube-state-metrics and publish them to CloudWatch

Install kube-state-metrics chart

helm install stable/kube-state-metrics

Find the running services

kubectl get services

Copy the name of the kube-state-metrics service (e.g. gauche-turtle-kube-state-metrics) into the ENV var PROMETHEUS_SCRAPE_URL in values.yaml.

kube-state-metrics-service

It should look like this:

PROMETHEUS_SCRAPE_URL: "http://gauche-turtle-kube-state-metrics:8080/metrics"

Deploy prometheus-to-cloudwatch chart

cd chart
helm install .

prometheus-to-cloudwatch will start scraping the /metrics endpoint of the kube-state-metrics service and send the Prometheus metrics to CloudWatch

kube-state-metrics-to-cloudwatch

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Contributing

Bug Reports & Feature Requests

Please use the issue tracker to report any bugs or file feature requests.

Developing

If you are interested in being a contributor and want to get involved in developing this project or help out with our other projects, we would love to hear from you! Shoot us an email.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

  1. Fork the repo on GitHub
  2. Clone the project to your own machine
  3. Commit changes to your own branch
  4. Push your work back up to your fork
  5. Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

Copyright

Copyright © 2017-2020 Cloud Posse, LLC

License

License

See LICENSE for full details.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

Trademarks

All other trademarks referenced herein are the property of their respective owners.

About

This project is maintained and funded by Cloud Posse, LLC. Like it? Please let us know by leaving a testimonial!

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Contributors

Erik Osterman<br/>Erik OstermanAndriy Knysh<br/>Andriy KnyshIgor Rodionov<br/>Igor Rodionovyufukui-m<br/>yufukui-mSatadru Biswas<br/>Satadru BiswasAustin ce<br/>Austin ce

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