unified cluster setup using colmena

cluster/bin/initca.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+TOP="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)/.."
+
+if [ "x$1" = "x" ]; then
+    echo "usage: initca.sh {cluster}"
+    exit 1
+fi
+
+ca=$TOP/modules/initca.nix
+
+cd $TOP/$1
+
+echo "--- Preparing CA certificate"
+nix-build -o ca $ca
+
+echo "--- Safeguarding CA certificate"
+nix-store --add-root $(pwd)/ca --indirect -r $(nix-instantiate --add-root $ca)