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"""

This example covers the following:

- Create deployment

- Annotate deployment

"""

from kubernetes import client, config

import time

def create_deployment_object():

container = client.V1Container(

name="nginx-sample",

image="nginx",

image_pull_policy="IfNotPresent",

ports=[client.V1ContainerPort(container_port=80)],

)

# Template

template = client.V1PodTemplateSpec(

metadata=client.V1ObjectMeta(labels={"app": "nginx"}),

spec=client.V1PodSpec(containers=[container]))

# Spec

spec = client.V1DeploymentSpec(

replicas=1,

selector=client.V1LabelSelector(

match_labels={"app": "nginx"}

),

template=template)

# Deployment

deployment = client.V1Deployment(

api_version="apps/v1",

kind="Deployment",

metadata=client.V1ObjectMeta(name="deploy-nginx"),

spec=spec)

return deployment

def create_deployment(apps_v1_api, deployment_object):

# Create the Deployment in default namespace

# You can replace the namespace with you have created

apps_v1_api.create_namespaced_deployment(

namespace="default", body=deployment_object

)

def annotate_deployment(apps_v1_api, deployment_name, annotations):

# Annotate the Deployment in default namespace

# You can replace the namespace with you have created

apps_v1_api.patch_namespaced_deployment(

name=deployment_name, namespace='default', body=annotations)

def main():

# Loading the local kubeconfig

config.load_kube_config()

apps_v1_api = client.AppsV1Api()

deployment_obj = create_deployment_object()

create_deployment(apps_v1_api, deployment_obj)

time.sleep(1)

before_annotating = apps_v1_api.read_namespaced_deployment(

'deploy-nginx', 'default')

print(f"Before annotating, annotations: {before_annotating.metadata.annotations}")

annotations = [

{

'op': 'add', # You can try different operations like 'replace', 'add' and 'remove'

'path': '/metadata/annotations',

'value': {

'deployment.kubernetes.io/str': 'nginx',

'deployment.kubernetes.io/int': '5'

}

}

]

annotate_deployment(apps_v1_api, 'deploy-nginx', annotations)

time.sleep(1)

after_annotating = apps_v1_api.read_namespaced_deployment(

name='deploy-nginx', namespace='default')

print(f"After annotating, annotations: {after_annotating.metadata.annotations}")

if __name__ == "__main__":

main()