tvl-depot/ops/terraform/deploy-nixos/nixos-eval.sh

#!/usr/bin/env bash
#
# Builds a NixOS system configuration at the given attribute path.
set -ueo pipefail

# Load input variables from Terraform. jq's @sh format takes care of
# escaping.
eval "$(jq -r '@sh "ATTRPATH=\(.attrpath) && ENTRYPOINT=\(.entrypoint)"')"

# Evaluate the system derivation.
[[ -z "$ENTRYPOINT" ]] && ENTRYPOINT=$(git rev-parse --show-toplevel)
SYSTEM_DRV=$(nix-instantiate -A "${ATTRPATH}" "${ENTRYPOINT}")

# Return system derivation back to Terraform.
jq -n --arg drv "$SYSTEM_DRV" '{"drv":$drv}'
feat(ops/terraform): add module for deploying NixOS system closures This module makes it fairly easy to deploy NixOS system closures using Terraform, while properly separating the evaluation of a derivation (to determine whether a deploy is needed) from the building and copying of the closure itself. This has been on my stack for a while. It was originally developed for Resoptima, who agreed to open-sourcing it in depot back when we completed our work with them. Their contribution has been acknowledged in the README. Co-Authored-By: Florian Klink <flokli@flokli.de> Change-Id: Ica4c170658cd25f1fb7072c9a45735fcc4351474 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7950 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI 2023-01-29 17:44:23 +01:00			`#!/usr/bin/env bash`
			`#`
			`# Builds a NixOS system configuration at the given attribute path.`
			`set -ueo pipefail`

			`# Load input variables from Terraform. jq's @sh format takes care of`
			`# escaping.`
feat(ops/terraform): allow specifying an entrypoint for the attrset This adds an additional parameter `entrypoint`, pointing to a .nix file (or a directory containing a `default.nix` file) that's providing the attribute path asked for. If not set / kept at the default (empty string), it falls back to the root dir of the repository as before. Change-Id: I2e63114f21660c842153ac15424b3491d66624d2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8190 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> 2023-03-01 14:56:14 +01:00			`eval "$(jq -r '@sh "ATTRPATH=\(.attrpath) && ENTRYPOINT=\(.entrypoint)"')"`
feat(ops/terraform): add module for deploying NixOS system closures This module makes it fairly easy to deploy NixOS system closures using Terraform, while properly separating the evaluation of a derivation (to determine whether a deploy is needed) from the building and copying of the closure itself. This has been on my stack for a while. It was originally developed for Resoptima, who agreed to open-sourcing it in depot back when we completed our work with them. Their contribution has been acknowledged in the README. Co-Authored-By: Florian Klink <flokli@flokli.de> Change-Id: Ica4c170658cd25f1fb7072c9a45735fcc4351474 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7950 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI 2023-01-29 17:44:23 +01:00
			`# Evaluate the system derivation.`
feat(ops/terraform): allow specifying an entrypoint for the attrset This adds an additional parameter `entrypoint`, pointing to a .nix file (or a directory containing a `default.nix` file) that's providing the attribute path asked for. If not set / kept at the default (empty string), it falls back to the root dir of the repository as before. Change-Id: I2e63114f21660c842153ac15424b3491d66624d2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8190 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> 2023-03-01 14:56:14 +01:00			`[[ -z "$ENTRYPOINT" ]] && ENTRYPOINT=$(git rev-parse --show-toplevel)`
			`SYSTEM_DRV=$(nix-instantiate -A "${ATTRPATH}" "${ENTRYPOINT}")`
feat(ops/terraform): add module for deploying NixOS system closures This module makes it fairly easy to deploy NixOS system closures using Terraform, while properly separating the evaluation of a derivation (to determine whether a deploy is needed) from the building and copying of the closure itself. This has been on my stack for a while. It was originally developed for Resoptima, who agreed to open-sourcing it in depot back when we completed our work with them. Their contribution has been acknowledged in the README. Co-Authored-By: Florian Klink <flokli@flokli.de> Change-Id: Ica4c170658cd25f1fb7072c9a45735fcc4351474 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7950 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI 2023-01-29 17:44:23 +01:00
			`# Return system derivation back to Terraform.`
			`jq -n --arg drv "$SYSTEM_DRV" '{"drv":$drv}'`