From 7c00fd2761e6efffe763ece5d08d9a6d3fb95092 Mon Sep 17 00:00:00 2001
From: notgne2
Date: Mon, 5 Oct 2020 19:46:28 -0700
Subject: Add interface with json schema, fix flake-less issues, put
 setActivate and jsonSchema check in flake lib

---
 interface/README.md | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 interface/README.md

(limited to 'interface/README.md')

diff --git a/interface/README.md b/interface/README.md
new file mode 100644
index 0000000..c6b52bd
--- /dev/null
+++ b/interface/README.md
@@ -0,0 +1,32 @@
+A flake must have a `deploy` output with the following structure:
+
+```
+deploy
+├── <generic args>
+└── nodes
+    ├── <NODE>
+    │   ├── <generic args>
+    │   ├── hostname
+    │   └── profiles
+    │       ├── <PROFILE>
+    │       │   ├── <generic args>
+    │       │   ├── bootstrap
+    │       │   └── path
+    │       └── <PROFILE>...
+    └── <NODE>...
+
+```
+
+Where `<generic args>` are all optional and can be one or multiple of:
+
+- `sshUser` -- user to connect as
+- `user` -- user to install and activate profiles with
+- `sshOpts` -- options passed to `nix copy` and `ssh`
+- `fastConnection` -- whether the connection from this host to the target one is fast (if it is, don't substitute on target and copy the entire closure) [default: `false`]
+- `autoRollback` -- whether to roll back when the deployment fails [default: `false`]
+
+A formal definition for the structure can be found in [the JSON schema](./deploy.json)
+
+For every profile of every node, arguments are merged with `<PROFILE>` taking precedence over `<NODE>` and `<NODE>` taking precedence over top-level.
+
+Values can be overridden for all the profiles deployed by setting environment variables with the same names as the profile, for example `sshUser=foobar nix run github:serokell/deploy .` will connect to all nodes as `foobar@<NODE>.hostname`.
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