feat: Add Configurable SSH Host Key Verification Strategy

[manish-singh-bisht]

Description

Fixes #510
extends support for strict host key verification during SSH

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

this has been tested by having a docker setup where one container was the db with no ports exported to keep it private, where as the other was a bastion node(ubuntu) in the same network as the db.

1. when no host verification mode was providied in config- defaults to insecure
2. when strict was provided and no path to known_hosts file was provided- throws error
3. connects via ssh when strict mode and ssh known_hosts file path was provided

Screenshots or Recordings

failed ssh strict verification cases.webm
passing strict verification.webm

Documentation

• Documentation Link: [link to README, olake.io/docs, or olake-docs]
• N/A (bug fix, refactor, or test changes only)

Related PR's (If Any):

[manish-singh-bisht]

@vaibhav-datazip ready for review

[manish-singh-bisht]

@vaibhav-datazip mondodb and oracle drivers dont support ssh yet, that is in the other pr #639

[vaibhav-datazip]

@vaibhav-datazip mondodb and oracle drivers dont support ssh yet, that is in the other pr #639

ohh, really sorry I will comment this there.

[manish-singh-bisht]

Hey @nayanj98 ,can you please assign someone to review this pr as well,

Would love to continue contributing to olake

[nayanj98]

Hey @manish-singh-bisht I have assigned @vishalm0509 to review this PR.