community.kubernetes.k8s_log (1.2.1) — module

Fetch logs from Kubernetes resources

| "added in version" 0.10.0 of community.kubernetes"

Authors: Fabian von Feilitzsch (@fabianvf)

This plugin has a corresponding action plugin.

Install collection

Install with ansible-galaxy collection install community.kubernetes:==1.2.1


Add to requirements.yml

  collections:
    - name: community.kubernetes
      version: 1.2.1

Description

Use the OpenShift Python client to perform read operations on K8s log endpoints.

Authenticate using either a config file, certificates, password or token.

Supports check mode.

Analogous to `kubectl logs` or `oc logs`


Requirements

Usage examples

  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Get a log from a Pod
  community.kubernetes.k8s_log:
    name: example-1
    namespace: testing
  register: log
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
# This will get the log from the first Pod found matching the selector
- name: Log a Pod matching a label selector
  community.kubernetes.k8s_log:
    namespace: testing
    label_selectors:
    - app=example
  register: log
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
# This will get the log from a single Pod managed by this Deployment
- name: Get a log from a Deployment
  community.kubernetes.k8s_log:
    api_version: apps/v1
    kind: Deployment
    namespace: testing
    name: example
  register: log
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
# This will get the log from a single Pod managed by this DeploymentConfig
- name: Get a log from a DeploymentConfig
  community.kubernetes.k8s_log:
    api_version: apps.openshift.io/v1
    kind: DeploymentConfig
    namespace: testing
    name: example
  register: log

Inputs

    
host:
    description:
    - Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment
      variable.
    type: str

kind:
    default: Pod
    description:
    - Use to specify an object model.
    - Use in conjunction with I(api_version), I(name), and I(namespace) to identify a
      specific object.
    - If using I(label_selectors), cannot be overridden.
    type: str

name:
    description:
    - Use to specify an object name.
    - Use in conjunction with I(api_version), I(kind) and I(namespace) to identify a specific
      object.
    - Only one of I(name) or I(label_selectors) may be provided.
    type: str

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

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

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

container:
    description:
    - Use to specify the container within a pod to grab the log from.
    - If there is only one container, this will default to that container.
    - If there is more than one container, this option is required.
    required: false
    type: str

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

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

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

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

label_selectors:
    description:
    - List of label selectors to use to filter results
    - Only one of I(name) or I(label_selectors) may be provided.
    elements: str
    type: list

Outputs

log:
  description:
  - The text log of the object
  returned: success
  type: str
log_lines:
  description:
  - The log of the object, split on newlines
  returned: success
  type: list