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Demo: Terraform external data source

Prerequisite: Nix or install Terraform by hand.

$ nix run nixpkgs#terraform init
[...]

$ nix run nixpkgs#terraform plan
[...]

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Minimal reproduction of poetry2nix eval failure

$ git clone https://gist.github.com/d0455a67d4f6b37058de8406086ed388.git repro
$ cd repro

# Change `system = "aarch64-darwin"` on line 7 if you are on another platform
$ vim flake.nix

$ nix build

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Keybase proof

I hereby claim:

• I am duijf on github.
• I am duijf (https://keybase.io/duijf) on keybase.
• I have a public key ASCnrhRZmMxQVDECP8jlQTo2cwqanNVNw073NnhwjwaoBwo

To claim this, I am signing this object:

duijf

Review

Was asked for a review of the mergeful. These are my findings.

Approach and scope

I don't think I'll look into the correctness of the code too much; I'll probably make more general observations, but who knows. What follows is an

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#!/usr/bin/env python3.7
"""
Bootstrap or update a single user Nix installation.

Caveat emptor: may eat your hard-drive. Read the script first and check that you
like what it does.

(C) Laurens Duijvesteijn 2019. Licensed under the MPL 2.0 available from
https://www.mozilla.org/en-US/MPL/2.0/

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function start_agent {
  echo "Initialising new SSH agent..."
  /usr/bin/ssh-agent | sed 's/^echo/#echo/' > "${SSH_ENV}"
  echo Succeeded
  chmod 600 "${SSH_ENV}"
  . "${SSH_ENV}" > /dev/null
  /usr/bin/ssh-add
}

if [ -f "${SSH_ENV}" ]; then

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Docker concepts

Linux file systems

Een Linux systeem heeft twee filesystems nodig om te functioneren:

• Een boot file system (bootfs)
• Een root file system (rootfs)

Het bootfs bevat de bootloader en kernel. Tijdens system boot wordt de kernel in het geheugen geladen en het bootfs wordt gedismount.