Merge pull request #933 from ratanboddu/ingress-example

Added Ingress Example

examples/ingress-example.py

@@ -0,0 +1,110 @@
+# Copyright 2019 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from kubernetes import client, config
+
+
+def create_deployment(apps_v1_api):
+    container = client.V1Container(
+        name="deployment",
+        image="gcr.io/google-appengine/fluentd-logger",
+        image_pull_policy="Never",
+        ports=[client.V1ContainerPort(container_port=5678)],
+    )
+    # Template
+    template = client.V1PodTemplateSpec(
+        metadata=client.V1ObjectMeta(labels={"app": "deployment"}),
+        spec=client.V1PodSpec(containers=[container]))
+    # Spec
+    spec = client.V1DeploymentSpec(
+        replicas=1,
+        template=template)
+    # Deployment
+    deployment = client.V1Deployment(
+        api_version="apps/v1",
+        kind="Deployment",
+        metadata=client.V1ObjectMeta(name="deployment"),
+        spec=spec)
+    # Creation of the Deployment in specified namespace
+    # (Can replace "default" with a namespace you may have created)
+    apps_v1_api.create_namespaced_deployment(
+        namespace="default", body=deployment
+    )
+
+
+def create_service():
+    core_v1_api = client.CoreV1Api()
+    body = client.V1Service(
+        api_version="v1",
+        kind="Service",
+        metadata=client.V1ObjectMeta(
+            name="service-example"
+        ),
+        spec=client.V1ServiceSpec(
+            selector={"app": "deployment"},
+            ports=[client.V1ServicePort(
+                port=5678,
+                target_port=5678
+            )]
+        )
+    )
+    # Creation of the Deployment in specified namespace
+    # (Can replace "default" with a namespace you may have created)
+    core_v1_api.create_namespaced_service(namespace="default", body=body)
+
+
+def create_ingress(networking_v1_beta1_api):
+    body = client.NetworkingV1beta1Ingress(
+        api_version="networking.k8s.io/v1beta1",
+        kind="Ingress",
+        metadata=client.V1ObjectMeta(name="ingress-example", annotations={
+            "nginx.ingress.kubernetes.io/rewrite-target": "/"
+        }),
+        spec=client.NetworkingV1beta1IngressSpec(
+            rules=[client.NetworkingV1beta1IngressRule(
+                host="boddulabs.com",
+                http=client.NetworkingV1beta1HTTPIngressRuleValue(
+                    paths=[client.NetworkingV1beta1HTTPIngressPath(
+                        path="/",
+                        backend=client.NetworkingV1beta1IngressBackend(
+                            service_port=5678,
+                            service_name="service-example")
+
+                    )]
+                )
+            )
+            ]
+        )
+    )
+    # Creation of the Deployment in specified namespace
+    # (Can replace "default" with a namespace you may have created)
+    networking_v1_beta1_api.create_namespaced_ingress(
+        namespace="default",
+        body=body
+    )
+
+
+def main():
+    # Fetching and loading local Kubernetes Information
+    config.load_kube_config()
+    apps_v1_api = client.AppsV1Api()
+    networking_v1_beta1_api = client.NetworkingV1beta1Api()
+
+    create_deployment(apps_v1_api)
+    create_service()
+    create_ingress(networking_v1_beta1_api)
+
+
+if __name__ == "__main__":
+    main()