a9s Prometheus

This documentation describes the a9s Prometheus service. a9s Prometheus enables on-demand provisioning of VM-based, dedicated Prometheus system, which contains prometheus, grafana, alertmanager and graphite exporter by default. The graphite exporter contains a huge set of metric mapping to be fully compatible with the metrics sent out by the a9s Data Services. Additionally a huge set of default alerts is also available from the beginning and should fit to a bunch of use cases.

Developers can create instances of a Prometheus system using Apps Manager or the Cloud Foundry Command Line interface (cf CLI). The information about the deployed components appear if the developer creates a service key or if the service is bound to an app.

You can access the web interfaces of the system by creating a cf ssh tunnel and using the information within the service key.

a9s-prometheus-image

Overview

When you run the cf CLI create-service a9s-prometheus command, BOSH creates dedicated VMs for this service instance. This allows the best possible bad neighborhood protection.

Prometheus service instance provisioning, including VM orchestration, is entirely automated. This enables service instances to be highly isolated and shielded by infrastructure virtualization mechanisms.

Due to the on-demand provisioning on VMs, only existing service instances allocate infrastructure resources. These resources are released when service instances are destroyed. Using on-demand provisioning the number of service instances is not limited by design.

Current Features

The current version of a9s Prometheus includes the following key features:

FeatureBenefit
On­-Demand Service Instance Provisioninga9s Prometheus deploys Prometheus instances automatically. Developers can provision a Prometheus system using a single command.
Service Instance IsolationEach Prometheus system runs on dedicated VMs to ensure bad neighborhood protection in order to be aligned with enterprise security requirements.

a9s Prometheus uses Cloud Foundry security groups to prevent network connections being established by unauthorized apps.
Smoke Testsa test to ensure the metric streaming to a Prometheus platform instance is available in each service deployment.
Service Instance Capacity UpgradeCloud Foundry Service Plan updates allow upgrades to the RAM, CPU, and storage capacity for your Prometheus instances.
Logging and MonitoringEach Prometheus service instance monitors itself and is able to collect metrics via graphite exporter.
Deployment UpdaterThis errand automatically updates the stemcell and all provisioned a9s Prometheus service instances to their lastest version.
Service GuardThe Service Guard creates Cloud Foundry security groups for your service instance VMs.

When the IP address of a service instance changes, the guard updates the security group.
a9s Data Service compatibilityThe a9s Prometheus service is fully compatible with the a9s Data Service instances, graphite metric mappings for all metrics are already included and a huge set of default alerts too.

Coming soon

  • SSL encrypted Service Instances
  • Grafana default Dashboards
  • a9s Management Dashboard to make the Webinterfaces available to the enduser

More information