feat: replace TryCP with Nomad for running scenarios

.gitignore

@@ -32,3 +32,6 @@ logs/**/*.log
 scenarios/*/logs
 run_summary.jsonl
 summariser-report-*.json
+
+# A symlink to the output directory of nix builds
+result

README.md

@@ -354,6 +354,41 @@ You can then start a second terminal and run one of the scenarios in the `scenar
 ```bash
 RUST_LOG=info CONDUCTOR_CONFIG="CI" TRYCP_RUST_LOG="info" MIN_PEERS=2 cargo run --package trycp_write_validated -- --targets targets-ci.yaml --instances-per-target 2 --duration 60
 ```
+#### Running Wind Tunnel Scenarios with Nomad
+
+> [!Warning]
+> This is a work in progress and currently only works with the `app_install` scenario.
+
+##### Running Locally
+
+You can easily test the Wind Tunnel scenarios with [Nomad](https://www.nomadproject.io) by running them locally, this requires running a Nomad agent locally
+as both a client and a server.
+
+First, enter the Nix `devShell` with `nix develop` to make sure you have all the packages install.
+Alternatively, [install Nomad](https://developer.hashicorp.com/nomad/install) and Holochain locally so that both `nomad` and `hc` are in your `PATH`.
+
+Once Nomad is installed, run the agent in `dev` mode to spin up both a server and client, do this with:
+```shell
+nomad agent -dev
+```
+
+Now navigate to <http://localhost:4646/ui> to view the Nomad dashboard.
+
+Next, in a new terminal window, build the `app_install` scenario with:
+```shell
+nix build .#app_install
+```
+
+Once the scenario is built you can run the Nomad job with:
+```shell
+nomad job run nomad/run-app_install-local.nomad.hcl
+```
+
+Then, navigate to <http://localhost:4646/ui/jobs/app_install_scenario@default> where you should see one allocation (the Nomad name for an instance of the job)
+this allocation should have two tasks: the `start-holochain` task and the `run_scenario` task. You can view the logs of these tasks to see the results.
+The allocation should be marked as "Completed" after a few seconds.
+
+Once you've finished testing you can kill the Nomad agent with `^C` in the first terminal running the agent.
 
 ### Published crates
 

flake.nix

@@ -54,6 +54,7 @@
     systems = builtins.attrNames inputs.holonix.devShells;
     perSystem = { inputs', pkgs, system, config, ... }:
       let
+        unfreePkgs = import nixpkgs { inherit system; config.allowUnfree = true; };
         rustMod = flake-parts-lib.importApply ./nix/modules/rust.nix { inherit crane rust-overlay nixpkgs; };
       in
       {
@@ -68,8 +69,9 @@
           ./nix/modules/zomes.nix
         ];
 
+
         devShells.default = pkgs.mkShell {
-          packages = with pkgs; [
+          packages = [
             pkgs.influxdb2-cli
             pkgs.influxdb2-server
             # TODO https://docs.influxdata.com/telegraf/v1/install/#ntp
@@ -81,6 +83,7 @@
             pkgs.taplo
             pkgs.yamlfmt
             pkgs.perl
+            unfreePkgs.nomad
             config.rustHelper.rust
             inputs'.holonix.packages.holochain
             inputs'.holonix.packages.lair-keystore

nomad/run-app_install-local.nomad.hcl

@@ -0,0 +1,35 @@
+job "app_install_scenario" {
+  type = "batch"
+  group "app_install" {
+    task "start_holochain" {
+      lifecycle {
+        hook = "prestart"
+        sidecar = true
+      }
+
+      driver = "raw_exec"
+      config {
+        command = "bash"
+        args = ["-c", "hc s clean && echo 1234 | hc s --piped create && echo 1234 | hc s --piped -f 8888 run"]
+      }
+    }
+
+    task "run_scenario" {
+      driver = "raw_exec"
+      env {
+        RUST_LOG = "info"
+      }
+      config {
+        command = abspath("result/bin/app_install")
+        args = [
+          "--connection-string", "ws://localhost:8888",
+          "--agents", "2",
+          "--behaviour", "minimal:1",
+          "--behaviour", "large:1",
+          "--duration", "5",
+          "--no-progress"
+        ]
+      }
+    }
+  }
+}