kubernetes / kubernetes.core / 1.2.1 / module / k8s Manage Kubernetes (K8s) objects Authors: Chris Houseknecht (@chouseknecht), Fabian von Feilitzsch (@fabianvf) This plugin has a corresponding action plugin.kubernetes.core.k8s (1.2.1) — module
Install with ansible-galaxy collection install kubernetes.core:==1.2.1
collections: - name: kubernetes.core version: 1.2.1
Use the OpenShift Python client to perform CRUD operations on K8s objects.
Pass the object definition from a source file or inline. See examples for reading files and using Jinja templates or vault-encrypted files.
Access to the full range of K8s APIs.
Use the M(kubernetes.core.k8s_info) module to obtain a list of items about an object of type C(kind)
Authenticate using either a config file, certificates, password or token.
Supports check mode.
- name: Create a k8s namespace kubernetes.core.k8s: name: testing api_version: v1 kind: Namespace state: present
- name: Create a Service object from an inline definition kubernetes.core.k8s: state: present definition: apiVersion: v1 kind: Service metadata: name: web namespace: testing labels: app: galaxy service: web spec: selector: app: galaxy service: web ports: - protocol: TCP targetPort: 8000 name: port-8000-tcp port: 8000
- name: Remove an existing Service object kubernetes.core.k8s: state: absent api_version: v1 kind: Service namespace: testing name: web
# Passing the object definition from a file - name: Create a Deployment by reading the definition from a local file kubernetes.core.k8s: state: present src: /testing/deployment.yml
- name: >- Read definition file from the Ansible controller file system. If the definition file has been encrypted with Ansible Vault it will automatically be decrypted. kubernetes.core.k8s: state: present definition: "{{ lookup('file', '/testing/deployment.yml') | from_yaml }}"
- name: Read definition template file from the Ansible controller file system kubernetes.core.k8s: state: present template: '/testing/deployment.j2'
- name: Read definition template file from the Ansible controller file system that uses custom start/end strings kubernetes.core.k8s: state: present template: path: '/testing/deployment.j2' variable_start_string: '[[' variable_end_string: ']]'
- name: fail on validation errors kubernetes.core.k8s: state: present definition: "{{ lookup('template', '/testing/deployment.yml') | from_yaml }}" validate: fail_on_error: yes
- name: warn on validation errors, check for unexpected properties kubernetes.core.k8s: state: present definition: "{{ lookup('template', '/testing/deployment.yml') | from_yaml }}" validate: fail_on_error: no strict: yes
# Download and apply manifest - name: Download metrics-server manifest to the cluster. ansible.builtin.get_url: url: https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml dest: ~/metrics-server.yaml mode: '0664'
- name: Apply metrics-server manifest to the cluster. kubernetes.core.k8s: state: present src: ~/metrics-server.yaml
src: description: - 'Provide a path to a file containing a valid YAML definition of an object or objects to be created or updated. Mutually exclusive with I(resource_definition). NOTE: I(kind), I(api_version), I(name), and I(namespace) will be overwritten by corresponding values found in the configuration read in from the I(src) file.' - Reads from the local file system. To read from the Ansible controller's file system, including vaulted files, use the file lookup plugin or template lookup plugin, combined with the from_yaml filter, and pass the result to I(resource_definition). See Examples below. - Mutually exclusive with I(template) in case of M(k8s) module. type: path host: description: - Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable. type: str kind: description: - Use to specify an object model. - Use to create, delete, or discover an object without providing a full resource definition. - Use in conjunction with I(api_version), I(name), and I(namespace) to identify a specific object. - If I(resource definition) is provided, the I(kind) value from the I(resource_definition) will override this option. type: str name: description: - Use to specify an object name. - Use to create, delete, or discover an object without providing a full resource definition. - Use in conjunction with I(api_version), I(kind) and I(namespace) to identify a specific object. - If I(resource definition) is provided, the I(metadata.name) value from the I(resource_definition) will override this option. type: str wait: default: false description: - Whether to wait for certain resource kinds to end up in the desired state. - By default the module exits once Kubernetes has received the request. - Implemented for C(state=present) for C(Deployment), C(DaemonSet) and C(Pod), and for C(state=absent) for all resource kinds. - For resource kinds without an implementation, C(wait) returns immediately unless C(wait_condition) is set. type: bool apply: default: false description: - C(apply) compares the desired resource definition with the previously supplied resource definition, ignoring properties that are automatically generated - C(apply) works better with Services than 'force=yes' - Requires openshift >= 0.9.2 - mutually exclusive with C(merge_type) type: bool force: default: false description: - If set to C(yes), and I(state) is C(present), an existing object will be replaced. type: bool proxy: description: - The URL of an HTTP proxy to use for the connection. Can also be specified via K8S_AUTH_PROXY environment variable. - Please note that this module does not pick up typical proxy settings from the environment (e.g. HTTP_PROXY). type: str state: choices: - absent - present default: present description: - Determines if an object should be created, patched, or deleted. When set to C(present), an object will be created, if it does not already exist. If set to C(absent), an existing object will be deleted. If set to C(present), an existing object will be patched, if its attributes differ from those specified using I(resource_definition) or I(src). type: str api_key: description: - Token used to authenticate with the API. Can also be specified via K8S_AUTH_API_KEY environment variable. type: str ca_cert: aliases: - ssl_ca_cert description: - 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. type: path context: description: - The name of a context found in the config file. Can also be specified via K8S_AUTH_CONTEXT environment variable. type: str password: description: - Provide a password for authenticating with the API. Can also be specified via K8S_AUTH_PASSWORD environment variable. - Please read the description of the C(username) option for a discussion of when this option is applicable. type: str template: description: - Provide a valid YAML template definition file for an object when creating or updating. - Value can be provided as string or dictionary. - Mutually exclusive with C(src) and C(resource_definition). - Template files needs to be present on the Ansible Controller's file system. - Additional parameters can be specified using dictionary. - 'Valid additional parameters - ' - 'C(newline_sequence) (str): Specify the newline sequence to use for templating files. valid choices are "\n", "\r", "\r\n". Default value "\n".' - 'C(block_start_string) (str): The string marking the beginning of a block. Default value "{%".' - 'C(block_end_string) (str): The string marking the end of a block. Default value "%}".' - 'C(variable_start_string) (str): The string marking the beginning of a print statement. Default value "{{".' - 'C(variable_end_string) (str): The string marking the end of a print statement. Default value "}}".' - 'C(trim_blocks) (bool): Determine when newlines should be removed from blocks. When set to C(yes) the first newline after a block is removed (block, not variable tag!). Default value is true.' - 'C(lstrip_blocks) (bool): Determine when leading spaces and tabs should be stripped. When set to C(yes) leading spaces and tabs are stripped from the start of a line to a block. This functionality requires Jinja 2.7 or newer. Default value is false.' type: raw username: description: - 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 C(k8s_auth) module, as that might do what you need. type: str validate: description: - how (if at all) to validate the resource definition against the kubernetes schema. Requires the kubernetes-validate python module and openshift >= 0.8.0 suboptions: fail_on_error: description: whether to fail on validation errors. type: bool strict: default: true description: whether to fail when passing unexpected properties type: bool version: description: version of Kubernetes to validate against. defaults to Kubernetes server version type: str type: dict namespace: description: - Use to specify an object namespace. - Useful when creating, deleting, or discovering an object without providing a full resource definition. - Use in conjunction with I(api_version), I(kind), and I(name) to identify a specific object. - If I(resource definition) is provided, the I(metadata.namespace) value from the I(resource_definition) will override this option. type: str client_key: aliases: - key_file description: - Path to a key file used to authenticate with the API. Can also be specified via K8S_AUTH_KEY_FILE environment variable. type: path kubeconfig: description: - 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 I(~/.kube/config.json). Can also be specified via K8S_AUTH_KUBECONFIG environment variable. type: path merge_type: choices: - json - merge - strategic-merge description: - 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 C(merge) if you see "strategic merge patch format is not supported" - See U(https://kubernetes.io/docs/tasks/run-application/update-api-object-kubectl-patch/#use-a-json-merge-patch-to-update-a-deployment) - 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 C(['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 C(strategic-merge). - mutually exclusive with C(apply) elements: str type: list wait_sleep: default: 5 description: - Number of seconds to sleep between checks. type: int api_version: aliases: - api - version default: v1 description: - Use to specify the API version. - Use to create, delete, or discover an object without providing a full resource definition. - Use in conjunction with I(kind), I(name), and I(namespace) to identify a specific object. - If I(resource definition) is provided, the I(apiVersion) value from the I(resource_definition) will override this option. type: str append_hash: default: false description: - Whether to append a hash to a resource name for immutability purposes - Applies only to ConfigMap and Secret resources - The parameter will be silently ignored for other resource kinds - The full definition of an object is needed to generate the hash - this means that deleting an object created with append_hash will only work if the same object is passed with state=absent (alternatively, just use state=absent with the name including the generated hash and append_hash=no) - Requires openshift >= 0.7.2 type: bool client_cert: aliases: - cert_file description: - Path to a certificate used to authenticate with the API. Can also be specified via K8S_AUTH_CERT_FILE environment variable. type: path wait_timeout: default: 120 description: - How long in seconds to wait for the resource to end up in the desired state. - Ignored if C(wait) is not set. type: int delete_options: description: - Configure behavior when deleting an object. - Only used when I(state=absent). suboptions: gracePeriodSeconds: description: - Specify how many seconds to wait before forcefully terminating. - Only implemented for Pod resources. - If not specified, the default grace period for the object type will be used. type: int preconditions: description: - Specify condition that must be met for delete to proceed. suboptions: resourceVersion: description: - Specify the resource version of the target object. type: str uid: description: - Specify the UID of the target object. type: str type: dict propagationPolicy: choices: - Foreground - Background - Orphan description: - Use to control how dependent objects are deleted. - If not specified, the default policy for the object type will be used. This may vary across object types. type: str type: dict version_added: 1.2.0 version_added_collection: kubernetes.core persist_config: description: - Whether or not to save the kube config refresh tokens. Can also be specified via K8S_AUTH_PERSIST_CONFIG environment variable. - When the k8s context is using a user credentials with refresh tokens (like oidc or gke/gcloud auth), the token is refreshed by the k8s python client library but not saved by default. So the old refresh token can expire and the next auth might fail. Setting this flag to true will tell the k8s python client to save the new refresh token to the kube config file. - Default to false. - Please note that the current version of the k8s python client library does not support setting this flag to True yet. - 'The fix for this k8s python library is here: https://github.com/kubernetes-client/python-base/pull/169' type: bool validate_certs: aliases: - verify_ssl description: - Whether or not to verify the API server's SSL certificates. Can also be specified via K8S_AUTH_VERIFY_SSL environment variable. type: bool wait_condition: description: - Specifies a custom condition on the status to wait for. - Ignored if C(wait) is not set or is set to False. suboptions: reason: description: - The value of the reason field in your desired condition - For example, if a C(Deployment) is paused, The C(Progressing) C(type) will have the C(DeploymentPaused) reason. - The possible reasons in a condition are specific to each resource type in Kubernetes. - See the API documentation of the status field for a given resource to see possible choices. type: str status: choices: - 'True' - 'False' - Unknown default: 'True' description: - The value of the status field in your desired condition. - For example, if a C(Deployment) is paused, the C(Progressing) C(type) will have the C(Unknown) status. type: str type: description: - The type of condition to wait for. - For example, the C(Pod) resource will set the C(Ready) condition (among others). - Required if you are specifying a C(wait_condition). - If left empty, the C(wait_condition) field will be ignored. - The possible types for a condition are specific to each resource type in Kubernetes. - See the API documentation of the status field for a given resource to see possible choices. type: str type: dict resource_definition: aliases: - definition - inline description: - Provide a valid YAML definition (either as a string, list, or dict) for an object when creating or updating. - 'NOTE: I(kind), I(api_version), I(name), and I(namespace) will be overwritten by corresponding values found in the provided I(resource_definition).'
result: contains: api_version: description: The versioned schema of this representation of an object. returned: success type: str duration: description: elapsed time of task in seconds returned: when C(wait) is true sample: 48 type: int items: description: Returned only when multiple yaml documents are passed to src or resource_definition returned: when resource_definition or src contains list of objects type: list kind: description: Represents the REST resource this object represents. returned: success type: str metadata: description: Standard object metadata. Includes name, namespace, annotations, labels, etc. returned: success type: complex spec: description: Specific attributes of the object. Will vary based on the I(api_version) and I(kind). returned: success type: complex status: description: Current status details for the object. returned: success type: complex description: - The created, patched, or otherwise present object. Will be empty in the case of a deletion. returned: success type: complex