|
| 1 | +""" |
| 2 | +This example covers the following: |
| 3 | + - Create deployment |
| 4 | + - Annotate deployment |
| 5 | +""" |
| 6 | + |
| 7 | + |
| 8 | +from kubernetes import client, config |
| 9 | +import time |
| 10 | + |
| 11 | + |
| 12 | +def create_deployment_object(): |
| 13 | + container = client.V1Container( |
| 14 | + name="nginx-sample", |
| 15 | + image="nginx", |
| 16 | + image_pull_policy="IfNotPresent", |
| 17 | + ports=[client.V1ContainerPort(container_port=80)], |
| 18 | + ) |
| 19 | + # Template |
| 20 | + template = client.V1PodTemplateSpec( |
| 21 | + metadata=client.V1ObjectMeta(labels={"app": "nginx"}), |
| 22 | + spec=client.V1PodSpec(containers=[container])) |
| 23 | + # Spec |
| 24 | + spec = client.V1DeploymentSpec( |
| 25 | + replicas=1, |
| 26 | + selector=client.V1LabelSelector( |
| 27 | + match_labels={"app": "nginx"} |
| 28 | + ), |
| 29 | + template=template) |
| 30 | + # Deployment |
| 31 | + deployment = client.V1Deployment( |
| 32 | + api_version="apps/v1", |
| 33 | + kind="Deployment", |
| 34 | + metadata=client.V1ObjectMeta(name="deploy-nginx"), |
| 35 | + spec=spec) |
| 36 | + |
| 37 | + return deployment |
| 38 | + |
| 39 | + |
| 40 | +def create_deployment(apps_v1_api, deployment_object): |
| 41 | + # Create the Deployment in default namespace |
| 42 | + # You can replace the namespace with you have created |
| 43 | + apps_v1_api.create_namespaced_deployment( |
| 44 | + namespace="default", body=deployment_object |
| 45 | + ) |
| 46 | + |
| 47 | + |
| 48 | +def annotate_deployment(apps_v1_api, deployment_name, annotations): |
| 49 | + # Annotate the Deployment in default namespace |
| 50 | + # You can replace the namespace with you have created |
| 51 | + apps_v1_api.patch_namespaced_deployment( |
| 52 | + name=deployment_name, namespace='default', body=annotations) |
| 53 | + |
| 54 | + |
| 55 | +def main(): |
| 56 | + # Loading the local kubeconfig |
| 57 | + config.load_kube_config() |
| 58 | + apps_v1_api = client.AppsV1Api() |
| 59 | + deployment_obj = create_deployment_object() |
| 60 | + |
| 61 | + create_deployment(apps_v1_api, deployment_obj) |
| 62 | + time.sleep(1) |
| 63 | + before_annotating = apps_v1_api.read_namespaced_deployment( |
| 64 | + 'deploy-nginx', 'default') |
| 65 | + print('Before annotating, annotations: %s' % |
| 66 | + before_annotating.metadata.annotations) |
| 67 | + |
| 68 | + annotations = [ |
| 69 | + { |
| 70 | + 'op': 'add', # You can try different operations like 'replace', 'add' and 'remove' |
| 71 | + 'path': '/metadata/annotations', |
| 72 | + 'value': { |
| 73 | + 'deployment.kubernetes.io/str': 'nginx', |
| 74 | + 'deployment.kubernetes.io/int': '5' |
| 75 | + } |
| 76 | + } |
| 77 | + ] |
| 78 | + |
| 79 | + annotate_deployment(apps_v1_api, 'deploy-nginx', annotations) |
| 80 | + time.sleep(1) |
| 81 | + after_annotating = apps_v1_api.read_namespaced_deployment( |
| 82 | + name='deploy-nginx', namespace='default') |
| 83 | + print('After annotating, annotations: %s' % |
| 84 | + after_annotating.metadata.annotations) |
| 85 | + |
| 86 | + |
| 87 | +if __name__ == "__main__": |
| 88 | + main() |
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