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Migration fit assessment tool

As explained in Google Anthos in Action

mfit is a command-line utility that collects workload data, assesses migration suitability, and generates fit assessment reports.

mfit is a standalone Linux command-line utility for collecting workload data, evaluating a virtual machine’s suitability for migration to a container, and producing fit assessment reports. It supports Linux and Windows guest collection through Bash and PowerShell scripts. section 15.4.1

The assessment workflow has three phases:

  • Discovery gathers inventory, configuration, and guest-level operating-system data into a local lightweight database under ~/.mfit by default. section 15.4.1
  • Assessment analyzes the collected data and assigns a migration-fit score. section 15.4.1
  • Reporting exports results that include suitability findings and recommendations for resolving migration obstacles. section 15.4.1

Typical CLI sequence

Install the Linux binary, discover vSphere inventory, collect guest data, assess the imported data, and export HTML or JSON: ./mfit discover vsphere -u <vcenter username> --url <https://vcenter-host-name-or-ip>; ./mfit assess; ./mfit report --format html > REPORT_NAME.html.

How Google Anthos in Action covers it

How deep it goes
Explains discovery, assessment, reporting, collection paths, scoring, and CLI commands without detailing the scoring algorithm.
Examples
Uses vSphere inventory discovery, Linux Bash and Windows PowerShell collectors, imported archives, and HTML or JSON reports.
What it assumes
Assumes Linux CLI access and target VM access; teaches collection through vSphere, SSH, or manually run guest scripts.
What you can do after
Operate mfit to collect workload data, assess migration fit, and export actionable assessment reports.
How it connects
Connects workload discovery with vSphere, SSH, guest-level data collection, container migration, and fit assessment reports.
Cover of Google Anthos in Action
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Related concepts

This explainer was generated by Manning's knowledge graph from the text of Google Anthos in Action. The section links point to the parts of the book it draws on.