mkSandboxSystem: add tools and envVars option with printing

1 files changed, 13 insertions, 0 deletions

diff --git a/example/flake.nix b/example/flake.nix
index 50931c6..17d15fc 100644
--- a/example/flake.nix
+++ b/example/flake.nix
@@ -50,6 +50,10 @@
     # By default, the VM is launched in the current console without a graphical
     # interface, dropping to a shell for the default dummy user within.
     #
+    # The binaries made available through the `tools` option and the
+    # environment variable set through the `envVars` option are printed when
+    # entering the shell.
+    #
     # The current working directory from which the Flake is run is mounted and
     # made available within the virtual machine in /mnt. The root filesystem
     # is ephemeral (written to a temporary file in /tmp).
@@ -64,6 +68,15 @@
       name = "sandbox";
       user = "dummy";
 
+      tools = with pkgs; [
+        postgresql
+        pgcli
+      ];
+
+      envVars = {
+        PGDATABASE = "app";
+      };
+
       config = {
         virtualisation.forwardPorts = [
           { from = "host"; host.port = 5432; guest.port = 5432; }  # postgres