Difference between revisions of "ZenPack:Amazon Web Services"

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(Replace 2.3.0 release with 2.3.1.)
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* Add support for custom CloudWatch metrics.
* Add support for custom CloudWatch metrics.
* Complete rewrite.
* Complete rewrite.

Revision as of 20:31, 1 June 2015

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Applications Monitored: 

Amazon Web Services ZenPack

The Amazon Web Services™ ZenPack allows you to monitor Amazon Elastic Compute Cloud™ (Amazon EC2™) server instances.


The ZenPack Catalog has moved to its new home at https://www.zenoss.com/product/zenpacks as of January 17, 2017. The following information may be out of date, and this page will eventually be removed.


This is an Open Source ZenPack developed by Zenoss, Inc. Enterprise support for this ZenPack is available to commercial customers with an active subscription.


Version 2.3.1- Download
Released on 2015/04/30
Requires PythonCollector ZenPack
Compatible with Zenoss Core 4.2.x, Zenoss Core 5.0.x, Zenoss Resource Manager 4.2.x, Zenoss Resource Manager 5.0.x
Version 2.2.2- Download
Released on 2014/12/12
Requires PythonCollector ZenPack
Compatible with Zenoss Core 4.2.x, Zenoss Resource Manager 4.2.x
Version 2.1.0- Download
Released on 2013/11/19
Requires PythonCollector ZenPack
Compatible with Zenoss Core 4.2.x, Zenoss Resource Manager 4.2.x
Version 2.0.0- Download
Released on 2013/03/25
Requires PythonCollector ZenPack
Compatible with Zenoss Core 4.2.x, Zenoss Resource Manager 4.2.x


This ZenPack provides support for monitoring Amazon Web Services (AWS). Monitoring for the following EC2, VPC and S3 entities is provided through a combination of the AWS EC2 and CloudWatch APIs.

Bulbgraph.png Note: This ZenPack supersedes the older ZenAWS (ZenPacks.zenoss.ZenAWS) ZenPack that was installed by default on versions of Zenoss prior to 4.2.4. Please remove ZenAWS before installing this ZenPack. This will remove the /EC2 device class and the EC2Manager device within. After installing this ZenPack, you will be able to add a new EC2 Account with much greater functionality.



The features added by this ZenPack can be summarized as follows. They are each detailed further below.

  • Discovery of EC2, VPC and S3 entities.
  • Monitoring of CloudWatch metrics.
  • Monitoring of Region, S3Bucket and Subnet components.
  • Event management and monitoring.
  • Optional auto-discovery and monitoring of instance guest operating systems.
  • Optional service impact with addition of Zenoss Service Dynamics product.


The following entities will be automatically discovered through an account name, access key and secret key you provide. The attributes, tags and collections will be updated on Zenoss' normal remodeling interval which defaults to every 12 hours.

AWS Region Instances
AWS Zone Volumes
AWS Subnets
Attributes: ID
Collections: VPCs, Subnets, Zones, Instances, Volumes, Images, Snapshots, Gateways, Reservations, Elastic IPs
Attributes: ID, Region, State
Collections: Instances, Volumes, Subnets
Attributes: ID, Region, CIDR Block, State
Tags: Name, Collector
Collections: Subnets, Instances
Attributes: ID, Region, VPC, Zone, State, CIDR Block, Available IP Address Count, Zone Default, Auto-Public IP
Tags: Name
Collections: Instances
Attributes: ID, Region, VPC, Zone, Image, Subnet, State, Instance ID, Tag, Instance Type, Instance Type Details, Platform, Public DNS Name, Private IP Address, Public IP, Launch Time, Guest Device
Tags: Name
Collections: Volumes
Other: Guest Device (if monitored by Zenoss)
Attributes: ID, Region, Zone, Instance, Type, Created Time, Size, IOPS, Status, Attach Data Status, Attach Data Device
Tags: Name
Elastic IPs
Attributes: ID, Region, Public IP, Private IP, Instance ID, Domain, Network interface ID, Network interface owner ID
Tags: Name
SQS Queues
Attributes: ID, Region
Tags: Name
S3 Buckets
Attributes: ID, Creation date
Tags: Name
Attributes: ID, Region, Volume, Volume size in Bytes, Progress, Started, Description
Tags: Name
VPN Gateways
Attributes: ID, Region, Gateway type, State
Tags: Name
Attributes: ID, Region, Status, Location, Owner ID, Architecture, Image type, Kernel ID, Ramdisk ID, Description, Block device mapping, Root device type, Root device name, Virtualization type, Hypervisor
Tags: Name


The following metrics will be collected every 5 minutes by default. Any other CloudWatch metrics can also be collected by adding them to the appropriate monitoring template. The Average statistic is collected, and the graphed value is per second for anything that resembles a rate.

Metrics: CPUUtilization, DiskReadOps, DiskWriteOps, DiskReadBytes, DiskWriteBytes, NetworkIn, NetworkOut
Metrics: CPUUtilization, DiskReadOps, DiskWriteOps, DiskReadBytes, DiskWriteBytes, NetworkIn, NetworkOut, StatusCheckFailed_Instance, StatusCheckFailed_System
Metrics: VolumeReadBytes, VolumeWriteBytes, VolumeReadOps, VolumeWriteOps, VolumeTotalReadTime, VolumeTotalWriteTime, VolumeIdleTime, VolumeQueueLength
Provisioned IOPS Metrics: VolumeThroughputPercentage, VolumeReadWriteOps

The Amazon CloudWatch datasource type also allows for the collection of any other CloudWatch metric.

Besides CloudWatch metrics, the following metrics will also be collected every 5 minutes by default.

Metrics: Available IP Adresses count
S3 Buckets
Metrics: Keys count, Total Size

Monitoring large cloud may require to contact AWS support with request to increase CloudWatch API requests limit. Appropriate event will be created in Zenoss in case limit for CloudWatch requests has been exceeded.

CloudWatch datasources utilize multithreading for better performance. It is possible to increase speed by setting "twistedthreadpoolsize" value in configuration of "zenpython" daemon. Please note that setting higher value will result also in bigger memory usage.

Soft Limits Monitoring

The following resource counts subject to the soft-limits will be collected every 5 minutes and when any of these metrics approaches a soft limit threshold, a Zenoss event will be triggered.

Soft Limit Metrics: Elastic IPs count, Instances count, Subnets count, VPC Security Groups count, VPC Security Groups Rules max, Volumes count

The thresholds are set to the default limit values. If you changed this limit for your account, you should manually change the Max threshold value using the following steps:

  1. Navigate to Monitoring Templates (Advanced panel).
  2. Click EC2Region and find RegionsSoftLimits among Data Sources.
  3. On the Thresholds panel choose the resources count to be changed.
  4. Double click on the resources count and change the value in the Maximum Value field.

Guest Device Discovery

You can optionally configure each monitored AWS account to attempt to discover and monitor the guest Linux or Windows operating systems running within each EC2 instance, when specific Tags are present. This requires that your Zenoss system has the network and server access it needs to monitor the guest operating system. VPC and non-VPC modes are supported.

The guest operating system devices' life-cycle are managed along with the instance. For example, the guest operating system device is set to a decommissioned production state when the EC2 instance is stopped, and the guest operating system device is deleted when the EC2 instance is destroyed.

Service Impact

When combined with the Zenoss Service Dynamics product, this ZenPack adds built-in service impact capability for services running on AWS. The following service impact relationships are automatically added. These will be included in any services that contain one or more of the explicitly mentioned entities.

Service Impact Relationships
  • Account access failure impacts all regions.
  • Region failure affects all VPCs and zones in affected region.
  • VPC failure affects all related subnets.
  • Zone failure affects all related subnets, instances and volumes.
  • Subnet failure affects all instances on affected subnet.
  • Volume failure affects any attached instance.
  • Instance failure affects the guest operating system device.
  • SQSQueue, VPNGateway, or EC2ElasticIP failure affects any related region.
  • S3Bucket failure affects related account.


Adding AWS Accounts

Use the following steps to start monitoring EC2 using the Zenoss web interface.

  1. Navigate to the Infrastructure page.
  2. Choose Add EC2 Account from the add device button.
  3. Enter your AWS account name, access key and secret key.
  4. Optionally choose a collector other than the default localhost.
  5. Click Add.

Alternatively you can use zenbatchload to add accounts from the command line. To do this, you must create a file with contents similar to the following. Replace all values in angle brackets with your values minus the brackets. Multiple accounts can be added under the same /Device/AWS/EC2 section.

/Devices/AWS/EC2 loader='ec2account', loader_arg_keys=['accountname', 'accesskey', 'secretkey', 'collector']
<accountname> accountname='<accountname>', accesskey='<accesskey>', secretkey='<secretkey>', collector='<collector>'

You can then load the account(s) with the following command.

$ zenbatchload <filename>

Configuring Guest Device Discovery

Use the following steps to configure instance guest device discovery. Guest device discovery must be configured individually for each EC2 account.

  1. Navigate to one of the EC2 accounts.
  2. Click the edit link beside Device Class for Discovered Linux Instances
  3. Choose the device class for Linux and/or Windows instances.
  4. Navigate to the Configuration Properties panel and in the zAWSDiscover property specify the instances' tags and values (e.g. tag:value;).
  5. Verify that appropriate SSH, SNMP or Windows credentials are configured for the chosen device class(es).
  6. To choose private or public IP address will be used for creating guest device, change the zAWSGuestUsePublicIPs property.
  7. Remodel the EC2 account by choosing Model Device from its menu.

If your instances are VPC instances, and are in a different VPC than the Zenoss server that's monitoring the EC2 account, you must add a Collector tag to containing VPC with the value set to the name of the Zenoss collector to which discovered guest devices should be assigned.


  1. If zAWSDiscover was filled with the value Test:test; after modeling all the devices with the tag Test:test will be discovered
  2. If zAWSDiscover was filled with the value Test1:test1; Test2:test2 after modeling all the devices with either of the tag will be discovered

Configuring Remote Collector for Guest Devices

You can optionally configure an alternate remote collector for the devices created from AWS Instances with the following configuration properties:


This property allows you to specify the name of the collector all discovered devices for this AWS device will use.


Setting this property to false will tell AWS not to change the collector if you have set it manually.

Configuring Instances Remodeling

You can optionally configure your monitored AWS account, so that the newly added or recently dropped instances are automatically reflected on Zenoss UI during monitoring:

  1. Navigate to the Configuration Properties panel.
  2. Enable the zAWSRemodelEnabled property (set it to true, this field is not case sensitive).

PEM file

Use the following steps to specify the PEM file to region for use in auto-discovering instance guest operating systems:

  1. Navigate to the Configuration Properties panel.
  2. Set region name and path to PEM file in the appropriate fields of zAWSRegionPEM property (see zAWSRegionPEM Propery).

Installed Items

Installing this ZenPack will add the following items to your Zenoss system.

Device Classes
  • /AWS
  • /AWS/EC2
Modeler Plugins
  • aws.EC2
Datasource Types
  • Amazon CloudWatch
  • AWSDataSource
Monitoring Templates
  • EC2Region (in /AWS/EC2)
  • EC2Instance (in /AWS/EC2)
  • EC2Instance-Detailed (in /AWS/EC2)
  • EC2Volume (in /AWS/EC2)
  • EC2Volume-IOPS (in /AWS/EC2)
  • EC2Image (in /AWS/EC2)
  • EC2VPC (in /AWS/EC2)
  • EC2VPCSubnet (in /AWS/EC2)
  • EC2Snapshot (in /AWS/EC2)
  • EC2Zone (in /AWS/EC2)
  • S3Bucket (in /AWS/EC2)
  • SQSQueue (in /AWS/EC2)
  • EC2ReservedInstance (in /AWS/EC2)
  • VPNGateway (in /AWS/EC2)
Device Types
  • EC2Account (in /AWS/EC2)
Component Types
  • EC2Region (on EC2Account)
  • EC2VPC (on EC2Region)
  • EC2VPCSubnet (on EC2Region)
  • EC2Zone (on EC2Region)
  • EC2Instance (on EC2Region)
  • EC2Volume (on EC2Region)
  • EC2Image (on EC2Region)
  • EC2Snapshot (on EC2Region)
  • SQSQueue (on EC2Region)
  • VPNGateway (on EC2Region)
  • EC2ReservedInstance (on EC2Region)
  • S3Bucket (on EC2Account)
  • Elastic IP (on EC2Region)

Required Daemons

Type Name
Modeler zenmodeler
Performance Collector zenpython

IAM Permissions

   "Statement": [
       "Action": [
       "Effect": "Allow",
       "Resource": "*"


The AWS Zenpack of versions 2.0.0 / 2.1.0 can be upgraded. To upgrade the ZenPack, install the latest version over the existing one. There is no action for the user to migrate the data. The performance data and events of old ZenPack are retained as per the retain policy settings.


In the current version of Zenpack monitoring of large AWS account (ex., > 1000

EC2 instances and volumes) may cause performance issues:

  • Limit for datapoints processed by zenpython daemon may be exceeded. This
  • will result in gaps in graphs.
  • Monitoring cycle may not fit into default value of 5 minutes. This will
  • result for some points on graphs to be not aligned by 5 minutes interval.
  • Having more than one AWS account added into Zenoss may lead to issues
  • described above.

Bulbgraph.png Note: It is possible to reduce number of datapoints collected by disabling monitoring templates you don't need.


  • Ignore reserved instances with a null id. (ZEN-17556).
  • Add ability for instances into VPC to use public IP address for guest device
  • Add parallel processing for CloudWatch datasources using multithreading. For large AWS installation it can be boosted by setting bigger value for "twistedthreadpoolsize" setting of PythonCollector.
  • Add support for Zenoss 5x.
  • Add ability for user to specify an alternate remote collector for discovered devices.
  • Update boto version shipped with the ZenPack to support signature v4.
  • Add support for SQS Messages, S3 Buckets, Reserved Instances, Elastic IPs, Images, VPN Gateways, Snapshots.
  • Discover instances via Layer 3 when specific Tags are present on the instance.
  • Add ability for user to upload PEM file to region for use in auto-discovering instance guest operating systems.
  • Add ability for user to enable reflecting new instances on Zenoss UI during monitoring.
  • Support multiple IP addresses per instance and add instance type details.
  • Monitor AWS Soft Limits and VPC Subnet available IP address count.
  • Update component statuses during monitoring.
  • Support CloudWatch metrics with multiple indexes.
  • Add "Amazon Email Host" notification type for SES notifications.
  • Add support for regions, zones, VPCs, subnets and volumes.
  • Add support for custom CloudWatch metrics.
  • Complete rewrite.


Normal Installation (packaged egg)

  1. Download the appropriate egg file for the version of Zenoss you are running.
  2. Ensure you are logged in as the zenoss user:
    $ sudo su - zenoss
  3. Install the ZenPack:
    $ zenpack --install ZenPacks.zenoss.AWS-*.egg
  4. Restart these services:
    $ zenoss restart

Developer Mode Installation

In order to do a development mode installation you will want to clone the existing git repository, and then use the --link flag with the zenpack command:

  1. Ensure you are logged in as the zenoss user:
    $ sudo su - zenoss
  2. Start by cloning the upstream repository:
    $ git clone git://github.com/zenoss/ZenPacks.zenoss.AWS.git
  3. Next, perform the installation:
    $ zenpack --link --install ZenPacks.zenoss.AWS
  4. Finally, restart these serivices:
    $ zenoss restart


Purplemarker.png New: Don't forget to add yourself to the Zenoss User Map!

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