init

main.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env -S uv run --quiet --script
+# /// script
+# requires-python = ">=3.12"
+# dependencies = [
+#     "kubernetes",
+#     "typer",
+# ]
+# ///
+
+import typer
+from kubernetes import client, config
+from typing import Optional
+
+app = typer.Typer(
+    help="Analyze Kubernetes Ingress resources and list hosts with annotations."
+)
+
+
+def load_k8s_config(kubeconfig: Optional[str]):
+    """
+    Load Kubernetes configuration. If `kubeconfig` is provided, use it; otherwise
+    try the default kubeconfig, falling back to in-cluster config.
+    """
+    try:
+        if kubeconfig:
+            config.load_kube_config(config_file=kubeconfig)
+        else:
+            config.load_kube_config()
+    except Exception:
+        config.load_incluster_config()
+
+
+@app.command()
+def analyze(
+    namespace: Optional[str] = typer.Option(
+        None,
+        "--namespace",
+        "-n",
+        help="Namespace to analyze (defaults to all namespaces)",
+    ),
+    kubeconfig: Optional[str] = typer.Option(
+        None, "--kubeconfig", "-k", help="Path to kubeconfig file"
+    ),
+):
+    """
+    Fetch Ingress resources and print for each:
+      - Namespace and name
+      - Hosts defined in .spec.rules
+      - Annotations on the Ingress
+    """
+    load_k8s_config(kubeconfig)
+    api = client.NetworkingV1Api()
+    if namespace:
+        ingress_list = api.list_namespaced_ingress(namespace)
+    else:
+        ingress_list = api.list_ingress_for_all_namespaces()
+    output = []
+    for ing in ingress_list.items:
+        ing_output = {}
+        ns = ing.metadata.namespace
+        name = ing.metadata.name
+        annotations = ing.metadata.annotations or {}
+        hosts = [rule.host for rule in (ing.spec.rules or []) if rule.host]
+        if "kompose.cmd" not in annotations:
+            continue
+
+        # typer.echo(f"{ns}/{name}")
+        ing_output["namespace"] = ns
+        ing_output["name"] = name
+        # typer.echo(f"  hosts: {', '.join(hosts) if hosts else '<none>'}")
+        ing_output["hosts"] = hosts
+
+        ing_output["annotations"] = {}
+        if annotations:
+            # typer.echo("  annotations:")
+            for key, val in annotations.items():
+                if "last-applied-configuration" not in key:
+                    ing_output["annotations"][key] = val
+                    # typer.echo(f"    {key}: {val}")
+
+        output.append(ing_output)
+        # typer.echo()
+
+    import json
+
+    typer.echo(json.dumps(output, indent=4, sort_keys=True))
+
+
+if __name__ == "__main__":
+    app()