Fabric Independence - rewrite core SSH and remote functionality directly over paramiko

[kabirbaidhya]

• Rewrite the core ssh and remote execution using paramiko.
  • Add basic SFTP functions like get, put, read, write directly over paramiko Add basic SSH and SFTP functions directly over paramiko #98
  • Rewrite logic with basic ssh read and write sftp operations using the new ssh module w/o relying on fabric Rewrite basic ssh operations using the new ssh module w/o relying on fabric #101
  • Ability to upload local directory to the remote host Introduce ssh.upload_dir() to upload a local directory to the remote host #105
  • Better file/directory upload API with progress Better file uploads APIs with cleaner UX and upload progress #110
  • Better file/directory download API with progress
  • Error handling for run function.
• Get rid of Fabric
  • Get rid of fabric's context managers
  • Get rid of fabric's run operation to run remote commands
  • Get rid of get, put and upload apis to transfer files.
• Refactor all remote execution code.
• Integration/Regression Tests:
  • Write more integration tests for the api/core functions Write integration tests for SSH operations #87
  • Write end to end tests for whole deployment process.
  • Containerized SSHD for running E2E/integration tests for deployments