refactor: improve config and ssh core and add iac integration tests

tests/test_iac_integration.py

@@ -0,0 +1,52 @@
+import pytest
+import os
+import subprocess
+import json
+
+# Path discovery - We are in external/dynamic-infra-tooling/tests
+# Correct project root is 3 levels up
+PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", ".."))
+ANSIBLE_BIN = "ansible-playbook"
+PLAYBOOK_PATH = os.path.join(PROJECT_ROOT, "ansible", "playbooks", "test-infra-plugin.yml")
+
+def test_ansible_lookup_plugin_integration():
+    """Verifies the Ansible plugin can be loaded and executed by Ansible"""
+    if not os.path.exists(PLAYBOOK_PATH):
+        pytest.skip(f"Playbook not found at {PLAYBOOK_PATH}")
+
+    env = os.environ.copy()
+    env["LC_ALL"] = "en_US.UTF-8"
+    env["LANG"] = "en_US.UTF-8"
+    # Ensure Ansible finds the plugin
+    env["ANSIBLE_LOOKUP_PLUGINS"] = os.path.join(PROJECT_ROOT, "ansible", "plugins", "lookup")
+    
+    # Run the test playbook
+    cmd = [ANSIBLE_BIN, PLAYBOOK_PATH]
+    result = subprocess.run(cmd, capture_output=True, text=True, env=env, cwd=os.path.join(PROJECT_ROOT, "ansible"))
+    
+    assert result.returncode == 0
+    assert "The next available IP is" in result.stdout
+    assert "The certificate for loopaware.com is loopaware.com.pem" in result.stdout
+
+def test_opentofu_external_wrapper():
+    """Verifies the OpenTofu wrapper returns valid JSON for the external data source"""
+    wrapper_script = os.path.join(PROJECT_ROOT, "scripts", "tofu-infra-query.sh")
+    
+    if not os.path.exists(wrapper_script):
+        pytest.skip(f"Wrapper script not found at {wrapper_script}")
+
+    # Simulate Tofu sending JSON query to stdin
+    query = json.dumps({"command": "ip next-free"})
+    
+    # Use shell execution to ensure the wrapper can find its relative paths correctly if needed
+    result = subprocess.run(
+        [wrapper_script],
+        input=query,
+        capture_output=True,
+        text=True
+    )
+    
+    assert result.returncode == 0
+    data = json.loads(result.stdout)
+    assert "result" in data
+    assert "10.32." in data["result"]