use jumphost for test

Signed-off-by: Kiara Grouwstra <kiara@procolix.eu>

deployment/check/data-model-tf-proxmox/nixosTest.nix

@@ -19,7 +19,9 @@ let
     inherit (import ./constants.nix) pathToRoot;
     nodeName = "pve";
     targetSystem = system;
-    sshOpts = [ ];
+    sshOpts = [
+      "ProxyCommand=ssh -W %h:%p pve"
+    ];
     key-file = "/root/.ssh/id_ed25519";
     proxmox-user = "root@pam";
     proxmox-password = "mytestpw";
@@ -196,17 +198,14 @@ in
 
       ip = deployer.succeed(f"""
         export SSL_CERT_FILE=/tmp/pve-ca-bundle.crt
+        ssh -o BatchMode=yes -o StrictHostKeyChecking=no pve "true"
         export PROXMOX_VE_API_TOKEN="root@pam!mytoken={pm_token}"
         ${lib.getExe deployment.run} | jq -r '.ipv4.value[0]'
         # ${lib.getExe deployment.run} >&2
       """).strip()
 
       deployer.succeed(f"""
-        ssh -i "/root/.ssh/id_ed25519" \
-        -o StrictHostKeyChecking=no \
-        -o BatchMode=yes \
-        -J pve \
-        root@{ip} su - operator -c hello >&2
+        ssh -i "/root/.ssh/id_ed25519" -o StrictHostKeyChecking=no -o BatchMode=yes -J pve root@{ip} su - operator -c hello >&2
       """)
   '';
 }