diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ffb0f57..889e187 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -78,6 +78,9 @@ jobs:
       - uses: helm/kind-action@v1.10.0
         with:
           cluster_name: kind
+      - uses: eifinger/setup-rye@v4
+        with:
+          version: '0.37.0'
       - uses: actions/download-artifact@v4
         with:
           name: pod-graceful-drain.tar
@@ -91,6 +94,8 @@ jobs:
             --set experimentalGeneralIngress=true \
             --set logLevel=info\\,pod_graceful_drain=trace \
             --wait=true --timeout=1m
+      - run: rye sync
+      - run: rye test
       - name: Dump
         if: always()
         run: |
diff --git a/.gitignore b/.gitignore
index 96ef862..089ff51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,7 @@
+.venv/
+*.egg-info/
+__pycache__/
+
 target/
+
 .idea/
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..871f80a
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.12.3
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..98b7b10
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,16 @@
+[project]
+name = "pod-graceful-drain-integ-test"
+version = "0.1.0"
+description = "Integration test for pod-graceful-drain"
+authors = [
+    { name = "SeongChan Lee", email = "foriequal@gmail.com" }
+]
+dependencies = []
+readme = "README.md"
+requires-python = ">= 3.8"
+
+[tool.rye]
+managed = true
+dev-dependencies = [
+    "pytest>=8.3.1",
+]
diff --git a/requirements-dev.lock b/requirements-dev.lock
new file mode 100644
index 0000000..2ee8d19
--- /dev/null
+++ b/requirements-dev.lock
@@ -0,0 +1,20 @@
+# generated by rye
+# use `rye lock` or `rye sync` to update this lockfile
+#
+# last locked with the following flags:
+#   pre: false
+#   features: []
+#   all-features: false
+#   with-sources: false
+#   generate-hashes: false
+
+-e file:.
+colorama==0.4.6
+    # via pytest
+iniconfig==2.0.0
+    # via pytest
+packaging==24.1
+    # via pytest
+pluggy==1.5.0
+    # via pytest
+pytest==8.3.1
diff --git a/requirements.lock b/requirements.lock
new file mode 100644
index 0000000..d795436
--- /dev/null
+++ b/requirements.lock
@@ -0,0 +1,11 @@
+# generated by rye
+# use `rye lock` or `rye sync` to update this lockfile
+#
+# last locked with the following flags:
+#   pre: false
+#   features: []
+#   all-features: false
+#   with-sources: false
+#   generate-hashes: false
+
+-e file:.
diff --git a/tests/test_smoke.py b/tests/test_smoke.py
new file mode 100644
index 0000000..41fe627
--- /dev/null
+++ b/tests/test_smoke.py
@@ -0,0 +1,119 @@
+import subprocess
+import sys
+from datetime import datetime, timedelta
+import random
+import time
+
+namespace = ""
+
+
+def setup_module():
+    global namespace
+    namespace = f"pgd-test-{random.randrange(10000, 99999)}"
+    kubectl("create", "namespace", namespace)
+    kubectl("label", "namespace", namespace, "test=true")
+    print("testing on namespace: ", namespace)
+
+
+def teardown_module():
+    global namespace
+    kubectl("delete", "namespace", namespace)
+
+
+def eprint(*args, **kwargs):
+    print(*args, file=sys.stderr, **kwargs)
+
+
+def kubectl(*args):
+    global namespace
+
+    result = subprocess.run(
+        ["kubectl", "--namespace", namespace, *args],
+        capture_output=True)
+
+    if result.returncode != 0:
+        eprint("stdout:")
+        eprint(result.stdout)
+        eprint("stderr:")
+        eprint(result.stderr)
+        raise Exception(f"'kubectl {" ".join(args)}' failed with exit code '{result.returncode}'")
+
+
+def kubectl_stdin(args, /, input):
+    global namespace
+
+    result = subprocess.run(
+        ["kubectl", "--namespace", namespace, *args],
+        capture_output=True,
+        input=input, encoding="utf-8")
+
+    if result.returncode != 0:
+        eprint("stdout:")
+        eprint(result.stdout)
+        eprint("stderr:")
+        eprint(result.stderr)
+        raise Exception(f"'kubectl {" ".join(args)}' failed with exit code '{result.returncode}'")
+
+
+def kubectl_nowait(args):
+    global namespace
+
+    child = subprocess.Popen(
+        ["kubectl", "--namespace", namespace, *args])
+
+    return child
+
+
+def pod_is_alive(name):
+    global namespace
+
+    result = subprocess.run(
+        ["kubectl", "--namespace", namespace, "get", name, "-o", "jsonpath={.metadata.deletionTimestamp}"],
+        capture_output=True, encoding="utf-8")
+
+    if result.returncode != 0:
+        return False
+
+    stdout = result.stdout.strip()
+    return not stdout
+
+
+def test_can_delete_pod_without_delay_if_no_ingress():
+    kubectl("run", "busybox-sleep", "--image=public.ecr.aws/docker/library/busybox", "--", "sleep", "1000")
+    kubectl("wait", "pod/busybox-sleep", "--for=condition=Ready")
+    start = datetime.now()
+    kubectl("delete", "pod/busybox-sleep", "--wait=false")
+    diff = datetime.now() - start
+    assert diff < timedelta(seconds=10), "it should be quick"
+    assert not pod_is_alive("pod/busybox-sleep")
+
+
+def test_delete_is_delayed_with_ingress():
+    kubectl("run", "nginx", "--image=nginx")
+    kubectl("expose", "pod", "nginx", "--port=80", "--target-port=8000")
+    kubectl_stdin(["apply", "-f", "-"], input="""
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: nginx
+spec:
+  rules:
+  - http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: nginx
+            port:
+              number: 80
+    """)
+    kubectl("wait", "pod/nginx", "--for=condition=Ready")
+
+    time.sleep(1)  # give some time to settle down
+
+    kubectl_nowait(["delete", "pod/nginx", "--wait=false"])
+
+    for _ in range(0, 20 - 5):
+        assert pod_is_alive("pod/nginx"), "pod should be alive for approx. 20s"
+        time.sleep(1)