Kubernetes - update ConfigMap programmatically

Question

I have a Kubernetes deployment which uses a ConfigMap with some configuration which is frequently updated. Currently I have to update this configuration manually, by running a script on my local machine that updates the ConfigMap via kubectl.

Is there a way to do this in a more automated fashion?

Answer 1

If you know Python, you can do something like this

from __future__ import print_statement 
import time 
import kubernetes.client from kubernetes.client.rest 
import ApiException from pprint import pprint
# Configure API key authorization: BearerToken 
kubernetes.client.configuration.api_key['authorization'] = 'YOUR_API_KEY'
# Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
# kubernetes.client.configuration.api_key_prefix['authorization'] = 'Bearer'
# create an instance of the API class api_instance = 
kubernetes.client.CoreV1Api() 
name = 'name_example' # str | name of the ConfigMap 
namespace = 'namespace_example' # str | object name and auth scope, such as for teams and projects 
body = NULL # object |  
pretty = 'pretty_example' # str | If 'true', then the output is pretty printed. (optional)
try: 
    api_response = api_instance.patch_namespaced_config_map(name, namespace, body, pretty=pretty)
    pprint(api_response) 
except ApiException as e:
    print("Exception when calling CoreV1Api->patch_namespaced_config_map: %s\n" % e)