Overview of Junos Automation Enhancements on Devices Running Junos OS with Enhanced Automation

Features of the Junos Automation Enhancements

To use the Junos Automation Enhancements, you must install the software bundle that contains Enhanced Automation. Installation packages for Junos OS with Enhanced Automation include flex in the filename. The software bundle with enhanced automation is identical to the standard software bundle except that Veriexec is disabled. Disabling Veriexec enables you to run unsigned programs, such as programs that you develop with Python, Chef, and Puppet.

The Junos Automation Enhancements include the following features:

• The factory-default configuration is a Layer 3 configuration. (The standard default factory configuration on some device series is Layer 2.)

• Safeguards ensure that you cannot overwrite essential Junos OS files, including system log notifications.

• The installation automatically sets up and reserves a 1 GB user partition on your system. You can use this partition to store your binaries and additional packages.

• The user partition is not overwritten when you upgrade or downgrade the software to an OS image that does not contain the automation enhancements.

  Note:

  If you make changes to the user partition while performing a unified in-service software upgrade (unified ISSU), the changes might be lost.

• The software bundle includes the Python interpreter and several open-source Python modules by default.

  You can invoke Python directly from the shell. See How to Use Python Interactive Mode on Devices Running Junos OS.

• The software bundle includes the following automation tools for provisioning and managing network devices and storage resources: Chef for Junos OS and Puppet for Junos OS.

  Note:

  For full compatibility, you must use only Chef for Junos OS and Puppet for Junos OS rather than the standard FreeBSD versions of Chef and Puppet software.