k8s_service – Manage Services on Kubernetes

New in version 2.8.

Synopsis

  • Use Openshift Python SDK to manage Services on Kubernetes

Requirements

The below requirements are needed on the host that executes this module.

  • python >= 2.7
  • openshift >= 0.6.2

Parameters

Parameter Choices/Defaults Comments
api_key
string
Token used to authenticate with the API. Can also be specified via K8S_AUTH_API_KEY environment variable.
ca_cert
path
Path to a CA certificate used to authenticate with the API. The full certificate chain must be provided to avoid certificate validation errors. Can also be specified via K8S_AUTH_SSL_CA_CERT environment variable.

aliases: ssl_ca_cert
client_cert
path
Path to a certificate used to authenticate with the API. Can also be specified via K8S_AUTH_CERT_FILE environment variable.

aliases: cert_file
client_key
path
Path to a key file used to authenticate with the API. Can also be specified via K8S_AUTH_KEY_FILE environment variable.

aliases: key_file
context
string
The name of a context found in the config file. Can also be specified via K8S_AUTH_CONTEXT environment variable.
force
boolean
    Choices:
  • no ←
  • yes
If set to True, and state is present, an existing object will be replaced.
host
string
Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable.
kubeconfig
path
Path to an existing Kubernetes config file. If not provided, and no other connection options are provided, the openshift client will attempt to load the default configuration file from ~/.kube/config.json. Can also be specified via K8S_AUTH_KUBECONFIG environment variable.
merge_type
list
    Choices:
  • json
  • merge
  • strategic-merge
Whether to override the default patch merge approach with a specific type. By default, the strategic merge will typically be used.
For example, Custom Resource Definitions typically aren't updatable by the usual strategic merge. You may want to use merge if you see "strategic merge patch format is not supported"
Requires openshift >= 0.6.2
If more than one merge_type is given, the merge_types will be tried in order
If openshift >= 0.6.2, this defaults to ['strategic-merge', 'merge'], which is ideal for using the same parameters on resource kinds that combine Custom Resources and built-in resources. For openshift < 0.6.2, the default is simply strategic-merge.
name
string / required
Use to specify a Service object name.
namespace
string / required
Use to specify a Service object namespace.
password
string
Provide a password for authenticating with the API. Can also be specified via K8S_AUTH_PASSWORD environment variable.
Please read the description of the username option for a discussion of when this option is applicable.
ports
list
A list of ports to expose.
resource_definition
dictionary
A partial YAML definition of the Service object being created/updated. Here you can define Kubernetes Service Resource parameters not covered by this module's parameters.
NOTE: resource_definition has lower priority than module parameters. If you try to define e.g. metadata.namespace here, that value will be ignored and metadata used instead.

aliases: definition, inline
selector
dictionary
Label selectors identify objects this Service should apply to.
state
-
    Choices:
  • present ←
  • absent
Determines if an object should be created, patched, or deleted. When set to present, an object will be created, if it does not already exist. If set to absent, an existing object will be deleted. If set to present, an existing object will be patched, if its attributes differ from those specified using module options and resource_definition.
type
-
    Choices:
  • NodePort
  • ClusterIP
  • LoadBalancer
  • ExternalName
Specifies the type of Service to create.
username
string
Provide a username for authenticating with the API. Can also be specified via K8S_AUTH_USERNAME environment variable.
Please note that this only works with clusters configured to use HTTP Basic Auth. If your cluster has a different form of authentication (e.g. OAuth2 in OpenShift), this option will not work as expected and you should look into the k8s_auth module, as that might do what you need.
validate_certs
boolean
    Choices:
  • no
  • yes
Whether or not to verify the API server's SSL certificates. Can also be specified via K8S_AUTH_VERIFY_SSL environment variable.

aliases: verify_ssl

Notes

Note

  • The OpenShift Python client wraps the K8s Python client, providing full access to all of the APIS and models available on both platforms. For API version details and additional information visit https://github.com/openshift/openshift-restclient-python
  • To avoid SSL certificate validation errors when validate_certs is True, the full certificate chain for the API server must be provided via ca_cert or in the kubeconfig file.

Examples

- name: Expose https port with ClusterIP
  k8s_service:
    state: present
    name: test-https
    namespace: default
    ports:
    - port: 443
      protocol: TCP
    selector:
      key: special

- name: Expose https port with ClusterIP using spec
  k8s_service:
    state: present
    name: test-https
    namespace: default
    inline:
      spec:
        ports:
        - port: 443
          protocol: TCP
        selector:
          key: special

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description
result
complex
success
The created, patched, or otherwise present Service object. Will be empty in the case of a deletion.

  api_version
string
success
The versioned schema of this representation of an object.

  kind
string
success
Always 'Service'.

  metadata
complex
success
Standard object metadata. Includes name, namespace, annotations, labels, etc.

  spec
complex
success
Specific attributes of the object. Will vary based on the api_version and kind.

  status
complex
success
Current status details for the object.



Status

Authors

  • KubeVirt Team (@kubevirt)

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