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authorVincent Ambo <mail@tazj.in>2023-01-29T16·44+0300
committertazjin <tazjin@tvl.su>2023-03-03T10·48+0000
commitdbca46d05205bdaab07d4faf1899a6452f34dd0f (patch)
treecdaf75f1bcf73dc70075d6c570cf3e42856b7019 /ops/terraform/deploy-nixos/nixos-copy.sh
parent0b64577702ca7e412bb2af4af7af9e33efc5c0f5 (diff)
feat(ops/terraform): add module for deploying NixOS system closures r/5867
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
Diffstat (limited to 'ops/terraform/deploy-nixos/nixos-copy.sh')
-rwxr-xr-xops/terraform/deploy-nixos/nixos-copy.sh23
1 files changed, 23 insertions, 0 deletions
diff --git a/ops/terraform/deploy-nixos/nixos-copy.sh b/ops/terraform/deploy-nixos/nixos-copy.sh
new file mode 100755
index 000000000000..1c6b8df024d2
--- /dev/null
+++ b/ops/terraform/deploy-nixos/nixos-copy.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+#
+# Copies a NixOS system to a target host, using the provided key.
+set -ueo pipefail
+
+scratch="$(mktemp -d)"
+trap 'rm -rf -- "${scratch}"' EXIT
+
+echo -n "$DEPLOY_KEY" > $scratch/id_deploy
+chmod 0600 $scratch/id_deploy
+
+export NIX_SSHOPTS="\
+    -o StrictHostKeyChecking=no\
+    -o UserKnownHostsFile=/dev/null\
+    -o GlobalKnownHostsFile=/dev/null\
+    -o IdentityFile=$scratch/id_deploy"
+
+nix-copy-closure \
+  --to ${TARGET_USER}@${TARGET_ADDRESS} \
+  ${SYSTEM_DRV} \
+  --gzip \
+  --include-outputs \
+  --use-substitutes