Version 107 of the Docker PowerPack includes updates in the packages, a new execution environment, and compatibility with the latest SL1 releases.
- Minimum Required SL1 Version: 8.14.1
Before You Install or Upgrade
Ensure that you are running version 8.14.1 or later of SL1 before installing "Docker" PowerPack version 107.
For details on upgrading SL1, see the relevant SL1 Platform Release Notes.
You must also enable the Docker API. For instructions, see the Monitoring Docker manual.
Installation or Upgrade Process
To install version 107 of the Docker PowerPack, perform the following steps:
By default, installing a new version of a PowerPack will overwrite all content in that PowerPack that has already been installed on the target system. You can use the Enable Selective PowerPack Field Protection setting in the Behavior Settings page (System > Settings > Behavior) to prevent the new version of the PowerPack from overwriting local changes for some commonly customized fields.
If you are currently using the Dynamic Applications in this PowerPack to monitor devices, collection errors might occur for one or two polling cycles during the installation of a new version. To prevent collection errors during an upgrade, you can optionally disable collection for monitored devices before performing the following steps and re-enable collection after the upgrade.
To install this PowerPack:
- Familiarize yourself with the Known Issues for this release.
- See the Before You Install or Upgrade section. If you have not done so already, upgrade your system to the 8.14.1 or later release.
- Download the "Docker" version 107PowerPack from the Support Site to a local computer.
- Go to the PowerPack Manager page (System > Manage > PowerPacks). Click the menu and choose Import PowerPack. When prompted, import "Docker" version 107.
- Click the button. For details on installing PowerPacks, see the chapter on Installing a PowerPack in the PowerPacks manual.
Features
This release includes the following features:
- Dynamic Applications that discover and collect data from Docker component devices
- Device Classes for each type of Docker component device monitored
- Event policies that are triggered when Docker devices meet certain status criteria
- Run Book Actions and Policies that automate some aspects of the device discovery and creation process
- An example Basic/Snippet Credential and an example SSH/Key Credential for discovering Docker devices
- Device Dashboards that display information about Docker component devices
Enhancements and Issues Addressed
The following enhancements and addressed issues are included this release of the "Docker" PowerPack:
- Updated the PowerPack to be compatible with Aurora 3 / MySQL 8 and SL1 version 12.2.0 and later.
- Updated silo_apps package to ensure compatibility with the latest SL1 releases. (Case: 00425554)
Known Issues
The following known issues affect version 107 of the Docker PowerPack:
- The "Docker: Container Performance" Dynamic Application getting more than 100% of CPU usage is an expected Docker behavior. SL1 will report CPU usage peaks just as it reports it on the Docker CLI. CPU usage can exceed 100% depending on the number of cores the container has: for example, two CPUs can report numbers up to 200%, three CPUs can report up to 300%, and so on.
- If a discovered device is reporting the "Device Failed Availability Check: UDP/SNMP check requested but invalid or no credential was specified" message, ensure that the Availability Port field in the Device Properties page (Devices> Device Manager > wrench icon) is configured as ICMP/ICMP.