hashicorp/packer

Feature: telnet, ftp provisioner

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#7,971 opened on Aug 10, 2019

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enhancementhelp wanted

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Description

Add a telnet provisioner, using FTP to transfer scripts, on behalf of legacy guest operating systems that do not have ssh, scp servers available.

Telnet provisioning with the option to inline scripts, is likely required for single-user operating systems that cannot run a file server application and a remote shell application concurrently.

Finally, (hot)key delays, for inline scripts and general telnet commands; and delays between telnet client session connections, will be required to ensure reliable communication for some graying telnet servers such as rmenu.

Contributor guide

Research direction
Study the existing provisioner implementations in the Packer codebase, especially the SSH based provisioner, and design a new telnet provisioner that uses FTP for script transfer. Understand the Packer plugin system and the interfaces for provisioners and builders.
Tech stack
go
Domain
devops
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65