refactor(ops): Split //ops/nixos into different locations r/2482

Splits //ops/nixos into:

* //ops/nixos.nix - utility functions for building systems
* //ops/machines - shared machine definitions (read by readTree)
* //ops/modules - shared NixOS modules (skipped by readTree)

This simplifies working with the configuration fixpoint in whitby, and
is overall a bit more in line with how NixOS systems in user folders
currently work.

Change-Id: I1322ec5cc76c0207c099c05d44828a3df0b3ffc1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2931
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: glittershark <grfn@gws.fyi>

26 files changed, 2 insertions, 0 deletions

diff --git a/ops/nixos/.skip-subtree b/ops/modules/.skip-subtree
index 09520f8c831f..09520f8c831f 100644
--- a/ops/nixos/.skip-subtree
+++ b/ops/modules/.skip-subtree
diff --git a/ops/nixos/README.md b/ops/modules/README.md
index 595b4c3344c6..595b4c3344c6 100644
--- a/ops/nixos/README.md
+++ b/ops/modules/README.md
diff --git a/ops/nixos/clbot.nix b/ops/modules/clbot.nix
index ad33e25a4d54..ad33e25a4d54 100644
--- a/ops/nixos/clbot.nix
+++ b/ops/modules/clbot.nix
diff --git a/ops/modules/default.nix b/ops/modules/default.nix
new file mode 100644
index 000000000000..8bdfecdf41b0
--- /dev/null
+++ b/ops/modules/default.nix
@@ -0,0 +1,2 @@
+# Make readTree happy at this level.
+_: {}
diff --git a/ops/nixos/irccat.nix b/ops/modules/irccat.nix
index e4b30b73553e..e4b30b73553e 100644
--- a/ops/nixos/irccat.nix
+++ b/ops/modules/irccat.nix
diff --git a/ops/nixos/monorepo-gerrit.nix b/ops/modules/monorepo-gerrit.nix
index eaea386ecd11..eaea386ecd11 100644
--- a/ops/nixos/monorepo-gerrit.nix
+++ b/ops/modules/monorepo-gerrit.nix
diff --git a/ops/nixos/panettone.nix b/ops/modules/panettone.nix
index 51a7468578f4..51a7468578f4 100644
--- a/ops/nixos/panettone.nix
+++ b/ops/modules/panettone.nix
diff --git a/ops/nixos/paroxysm.nix b/ops/modules/paroxysm.nix
index cd9cd3866e47..cd9cd3866e47 100644
--- a/ops/nixos/paroxysm.nix
+++ b/ops/modules/paroxysm.nix
diff --git a/ops/nixos/quassel.nix b/ops/modules/quassel.nix
index df26a3945532..df26a3945532 100644
--- a/ops/nixos/quassel.nix
+++ b/ops/modules/quassel.nix
diff --git a/ops/nixos/smtprelay.nix b/ops/modules/smtprelay.nix
index d8e03b5794b0..d8e03b5794b0 100644
--- a/ops/nixos/smtprelay.nix
+++ b/ops/modules/smtprelay.nix
diff --git a/ops/nixos/sourcegraph.nix b/ops/modules/sourcegraph.nix
index a24328f3e366..a24328f3e366 100644
--- a/ops/nixos/sourcegraph.nix
+++ b/ops/modules/sourcegraph.nix
diff --git a/ops/nixos/tvl-buildkite.nix b/ops/modules/tvl-buildkite.nix
index 2aa3b81811f4..2aa3b81811f4 100644
--- a/ops/nixos/tvl-buildkite.nix
+++ b/ops/modules/tvl-buildkite.nix
diff --git a/ops/nixos/tvl-slapd/default.nix b/ops/modules/tvl-slapd/default.nix
index ae99fced7499..ae99fced7499 100644
--- a/ops/nixos/tvl-slapd/default.nix
+++ b/ops/modules/tvl-slapd/default.nix
diff --git a/ops/nixos/tvl-sso/default.nix b/ops/modules/tvl-sso/default.nix
index 8e33c708b7f3..8e33c708b7f3 100644
--- a/ops/nixos/tvl-sso/default.nix
+++ b/ops/modules/tvl-sso/default.nix
diff --git a/ops/nixos/v4l2loopback.nix b/ops/modules/v4l2loopback.nix
index 636b2ff6cf27..636b2ff6cf27 100644
--- a/ops/nixos/v4l2loopback.nix
+++ b/ops/modules/v4l2loopback.nix
diff --git a/ops/nixos/www/b.tvl.fyi.nix b/ops/modules/www/b.tvl.fyi.nix
index 45f6c6ed5141..45f6c6ed5141 100644
--- a/ops/nixos/www/b.tvl.fyi.nix
+++ b/ops/modules/www/b.tvl.fyi.nix
diff --git a/ops/nixos/www/base.nix b/ops/modules/www/base.nix
index 4b956cd95ef1..4b956cd95ef1 100644
--- a/ops/nixos/www/base.nix
+++ b/ops/modules/www/base.nix
diff --git a/ops/nixos/www/cache.tvl.su.nix b/ops/modules/www/cache.tvl.su.nix
index 182306bebff1..182306bebff1 100644
--- a/ops/nixos/www/cache.tvl.su.nix
+++ b/ops/modules/www/cache.tvl.su.nix
diff --git a/ops/nixos/www/cl.tvl.fyi.nix b/ops/modules/www/cl.tvl.fyi.nix
index 470122c395ea..470122c395ea 100644
--- a/ops/nixos/www/cl.tvl.fyi.nix
+++ b/ops/modules/www/cl.tvl.fyi.nix
diff --git a/ops/nixos/www/code.tvl.fyi.nix b/ops/modules/www/code.tvl.fyi.nix
index c8a4b27b1b52..c8a4b27b1b52 100644
--- a/ops/nixos/www/code.tvl.fyi.nix
+++ b/ops/modules/www/code.tvl.fyi.nix
diff --git a/ops/nixos/www/cs.tvl.fyi.nix b/ops/modules/www/cs.tvl.fyi.nix
index fac814baf064..fac814baf064 100644
--- a/ops/nixos/www/cs.tvl.fyi.nix
+++ b/ops/modules/www/cs.tvl.fyi.nix
diff --git a/ops/nixos/www/login.tvl.fyi.nix b/ops/modules/www/login.tvl.fyi.nix
index 05b7cee25338..05b7cee25338 100644
--- a/ops/nixos/www/login.tvl.fyi.nix
+++ b/ops/modules/www/login.tvl.fyi.nix
diff --git a/ops/nixos/www/tazj.in.nix b/ops/modules/www/tazj.in.nix
index 7d658a5ec4c1..7d658a5ec4c1 100644
--- a/ops/nixos/www/tazj.in.nix
+++ b/ops/modules/www/tazj.in.nix
diff --git a/ops/nixos/www/todo.tvl.fyi.nix b/ops/modules/www/todo.tvl.fyi.nix
index b53f5437e7ab..b53f5437e7ab 100644
--- a/ops/nixos/www/todo.tvl.fyi.nix
+++ b/ops/modules/www/todo.tvl.fyi.nix
diff --git a/ops/nixos/www/tvl.fyi.nix b/ops/modules/www/tvl.fyi.nix
index 45fd35803de7..45fd35803de7 100644
--- a/ops/nixos/www/tvl.fyi.nix
+++ b/ops/modules/www/tvl.fyi.nix
diff --git a/ops/nixos/www/wigglydonke.rs.nix b/ops/modules/www/wigglydonke.rs.nix
index 0bc67898c633..0bc67898c633 100644
--- a/ops/nixos/www/wigglydonke.rs.nix
+++ b/ops/modules/www/wigglydonke.rs.nix