Files
kubernetes.core/library/k8s_v1_job.py
2018-01-11 15:47:18 -05:00

548 lines
23 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
from ansible.module_utils.k8s_common import KubernetesAnsibleModule, KubernetesAnsibleException
DOCUMENTATION = '''
module: k8s_v1_job
short_description: Kubernetes Job
description:
- Manage the lifecycle of a job object. Supports check mode, and attempts to to be
idempotent.
version_added: 2.3.0
author: OpenShift (@openshift)
options:
annotations:
description:
- Annotations is an unstructured key value map stored with a resource that may
be set by external tools to store and retrieve arbitrary metadata. They are
not queryable and should be preserved when modifying objects.
type: dict
api_key:
description:
- Token used to connect to the API.
cert_file:
description:
- Path to a certificate used to authenticate with the API.
type: path
context:
description:
- The name of a context found in the Kubernetes config file.
debug:
description:
- Enable debug output from the OpenShift helper. Logging info is written to KubeObjHelper.log
default: false
type: bool
force:
description:
- If set to C(True), and I(state) is C(present), an existing object will updated,
and lists will be replaced, rather than merged.
default: false
type: bool
host:
description:
- Provide a URL for acessing the Kubernetes API.
key_file:
description:
- Path to a key file used to authenticate with the API.
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).
type: path
labels:
description:
- Map of string keys and values that can be used to organize and categorize (scope
and select) objects. May match selectors of replication controllers and services.
type: dict
name:
description:
- Name must be unique within a namespace. Is required when creating resources,
although some resources may allow a client to request the generation of an appropriate
name automatically. Name is primarily intended for creation idempotence and
configuration definition. Cannot be updated.
namespace:
description:
- Namespace defines the space within each name must be unique. An empty namespace
is equivalent to the "default" namespace, but "default" is the canonical representation.
Not all objects are required to be scoped to a namespace - the value of this
field for those objects will be empty. Must be a DNS_LABEL. Cannot be updated.
password:
description:
- Provide a password for connecting to the API. Use in conjunction with I(username).
resource_definition:
description:
- Provide the YAML definition for the object, bypassing any modules parameters
intended to define object attributes.
type: dict
spec_active_deadline_seconds:
description:
- Specifies the duration in seconds relative to the startTime that the job may
be active before the system tries to terminate it; value must be positive integer
aliases:
- active_deadline_seconds
type: int
spec_backoff_limit:
description:
- Specifies the number of retries before marking this job failed. Defaults to
6
aliases:
- backoff_limit
type: int
spec_completions:
description:
- Specifies the desired number of successfully finished pods the job should be
run with. Setting to nil means that the success of any pod signals the success
of all pods, and allows parallelism to have any positive value. Setting to 1
means that parallelism is limited to 1 and the success of that pod signals the
success of the job.
aliases:
- completions
type: int
spec_manual_selector:
description:
- manualSelector controls generation of pod labels and pod selectors. Leave `manualSelector`
unset unless you are certain what you are doing. When false or unset, the system
pick labels unique to this job and appends those labels to the pod template.
When true, the user is responsible for picking unique labels and specifying
the selector. Failure to pick a unique label may cause this and other jobs to
not function correctly. However, You may see `manualSelector=true` in jobs that
were created with the old `extensions/v1beta1` API.
aliases:
- manual_selector
type: bool
spec_parallelism:
description:
- Specifies the maximum desired number of pods the job should run at any given
time. The actual number of pods running in steady state will be less than this
number when ((.spec.completions - .status.successful) < .spec.parallelism),
i.e. when the work left to do is less than max parallelism.
aliases:
- parallelism
type: int
spec_selector_match_expressions:
description:
- matchExpressions is a list of label selector requirements. The requirements
are ANDed.
aliases:
- selector_match_expressions
type: list
spec_selector_match_labels:
description:
- matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels
map is equivalent to an element of matchExpressions, whose key field is "key",
the operator is "In", and the values array contains only "value". The requirements
are ANDed.
aliases:
- selector_match_labels
type: dict
spec_template_metadata_annotations:
description:
- Annotations is an unstructured key value map stored with a resource that may
be set by external tools to store and retrieve arbitrary metadata. They are
not queryable and should be preserved when modifying objects.
type: dict
spec_template_metadata_labels:
description:
- Map of string keys and values that can be used to organize and categorize (scope
and select) objects. May match selectors of replication controllers and services.
type: dict
spec_template_metadata_name:
description:
- Name must be unique within a namespace. Is required when creating resources,
although some resources may allow a client to request the generation of an appropriate
name automatically. Name is primarily intended for creation idempotence and
configuration definition. Cannot be updated.
spec_template_metadata_namespace:
description:
- Namespace defines the space within each name must be unique. An empty namespace
is equivalent to the "default" namespace, but "default" is the canonical representation.
Not all objects are required to be scoped to a namespace - the value of this
field for those objects will be empty. Must be a DNS_LABEL. Cannot be updated.
spec_template_spec_active_deadline_seconds:
description:
- Optional duration in seconds the pod may be active on the node relative to StartTime
before the system will actively try to mark it failed and kill associated containers.
Value must be a positive integer.
type: int
spec_template_spec_affinity_node_affinity_preferred_during_scheduling_ignored_during_execution:
description:
- The scheduler will prefer to schedule pods to nodes that satisfy the affinity
expressions specified by this field, but it may choose a node that violates
one or more of the expressions. The node that is most preferred is the one with
the greatest sum of weights, i.e. for each node that meets all of the scheduling
requirements (resource request, requiredDuringScheduling affinity expressions,
etc.), compute a sum by iterating through the elements of this field and adding
"weight" to the sum if the node matches the corresponding matchExpressions;
the node(s) with the highest sum are the most preferred.
aliases:
- affinity_node_affinity_preferred_during_scheduling_ignored_during_execution
type: list
spec_template_spec_affinity_node_affinity_required_during_scheduling_ignored_during_execution_node_selector_terms:
description:
- Required. A list of node selector terms. The terms are ORed.
aliases:
- affinity_node_affinity_required_during_scheduling_ignored_during_execution_node_selector_terms
type: list
spec_template_spec_affinity_pod_affinity_preferred_during_scheduling_ignored_during_execution:
description:
- The scheduler will prefer to schedule pods to nodes that satisfy the affinity
expressions specified by this field, but it may choose a node that violates
one or more of the expressions. The node that is most preferred is the one with
the greatest sum of weights, i.e. for each node that meets all of the scheduling
requirements (resource request, requiredDuringScheduling affinity expressions,
etc.), compute a sum by iterating through the elements of this field and adding
"weight" to the sum if the node has pods which matches the corresponding podAffinityTerm;
the node(s) with the highest sum are the most preferred.
aliases:
- affinity_pod_affinity_preferred_during_scheduling_ignored_during_execution
type: list
spec_template_spec_affinity_pod_affinity_required_during_scheduling_ignored_during_execution:
description:
- If the affinity requirements specified by this field are not met at scheduling
time, the pod will not be scheduled onto the node. If the affinity requirements
specified by this field cease to be met at some point during pod execution (e.g.
due to a pod label update), the system may or may not try to eventually evict
the pod from its node. When there are multiple elements, the lists of nodes
corresponding to each podAffinityTerm are intersected, i.e. all terms must be
satisfied.
aliases:
- affinity_pod_affinity_required_during_scheduling_ignored_during_execution
type: list
spec_template_spec_affinity_pod_anti_affinity_preferred_during_scheduling_ignored_during_execution:
description:
- The scheduler will prefer to schedule pods to nodes that satisfy the anti-affinity
expressions specified by this field, but it may choose a node that violates
one or more of the expressions. The node that is most preferred is the one with
the greatest sum of weights, i.e. for each node that meets all of the scheduling
requirements (resource request, requiredDuringScheduling anti-affinity expressions,
etc.), compute a sum by iterating through the elements of this field and adding
"weight" to the sum if the node has pods which matches the corresponding podAffinityTerm;
the node(s) with the highest sum are the most preferred.
aliases:
- affinity_pod_anti_affinity_preferred_during_scheduling_ignored_during_execution
type: list
spec_template_spec_affinity_pod_anti_affinity_required_during_scheduling_ignored_during_execution:
description:
- If the anti-affinity requirements specified by this field are not met at scheduling
time, the pod will not be scheduled onto the node. If the anti-affinity requirements
specified by this field cease to be met at some point during pod execution (e.g.
due to a pod label update), the system may or may not try to eventually evict
the pod from its node. When there are multiple elements, the lists of nodes
corresponding to each podAffinityTerm are intersected, i.e. all terms must be
satisfied.
aliases:
- affinity_pod_anti_affinity_required_during_scheduling_ignored_during_execution
type: list
spec_template_spec_automount_service_account_token:
description:
- AutomountServiceAccountToken indicates whether a service account token should
be automatically mounted.
aliases:
- automount_service_account_token
type: bool
spec_template_spec_containers:
description:
- List of containers belonging to the pod. Containers cannot currently be added
or removed. There must be at least one container in a Pod. Cannot be updated.
aliases:
- containers
type: list
spec_template_spec_dns_policy:
description:
- Set DNS policy for containers within the pod. One of 'ClusterFirstWithHostNet',
'ClusterFirst' or 'Default'. Defaults to "ClusterFirst". To have DNS options
set along with hostNetwork, you have to specify DNS policy explicitly to 'ClusterFirstWithHostNet'.
aliases:
- dns_policy
spec_template_spec_host_aliases:
description:
- HostAliases is an optional list of hosts and IPs that will be injected into
the pod's hosts file if specified. This is only valid for non-hostNetwork pods.
aliases:
- host_aliases
type: list
spec_template_spec_host_ipc:
description:
- "Use the host's ipc namespace. Optional: Default to false."
aliases:
- host_ipc
type: bool
spec_template_spec_host_network:
description:
- Host networking requested for this pod. Use the host's network namespace. If
this option is set, the ports that will be used must be specified. Default to
false.
aliases:
- host_network
type: bool
spec_template_spec_host_pid:
description:
- "Use the host's pid namespace. Optional: Default to false."
aliases:
- host_pid
type: bool
spec_template_spec_hostname:
description:
- Specifies the hostname of the Pod If not specified, the pod's hostname will
be set to a system-defined value.
aliases:
- hostname
spec_template_spec_image_pull_secrets:
description:
- ImagePullSecrets is an optional list of references to secrets in the same namespace
to use for pulling any of the images used by this PodSpec. If specified, these
secrets will be passed to individual puller implementations for them to use.
For example, in the case of docker, only DockerConfig type secrets are honored.
aliases:
- image_pull_secrets
type: list
spec_template_spec_init_containers:
description:
- List of initialization containers belonging to the pod. Init containers are
executed in order prior to containers being started. If any init container fails,
the pod is considered to have failed and is handled according to its restartPolicy.
The name for an init container or normal container must be unique among all
containers. Init containers may not have Lifecycle actions, Readiness probes,
or Liveness probes. The resourceRequirements of an init container are taken
into account during scheduling by finding the highest request/limit for each
resource type, and then using the max of of that value or the sum of the normal
containers. Limits are applied to init containers in a similar fashion. Init
containers cannot currently be added or removed. Cannot be updated.
aliases:
- init_containers
type: list
spec_template_spec_node_name:
description:
- NodeName is a request to schedule this pod onto a specific node. If it is non-empty,
the scheduler simply schedules this pod onto that node, assuming that it fits
resource requirements.
aliases:
- node_name
spec_template_spec_node_selector:
description:
- NodeSelector is a selector which must be true for the pod to fit on a node.
Selector which must match a node's labels for the pod to be scheduled on that
node.
aliases:
- node_selector
type: dict
spec_template_spec_priority:
description:
- The priority value. Various system components use this field to find the priority
of the pod. When Priority Admission Controller is enabled, it prevents users
from setting this field. The admission controller populates this field from
PriorityClassName. The higher the value, the higher the priority.
aliases:
- priority
type: int
spec_template_spec_priority_class_name:
description:
- If specified, indicates the pod's priority. "SYSTEM" is a special keyword which
indicates the highest priority. Any other name must be defined by creating a
PriorityClass object with that name. If not specified, the pod priority will
be default or zero if there is no default.
aliases:
- priority_class_name
spec_template_spec_restart_policy:
description:
- Restart policy for all containers within the pod. One of Always, OnFailure,
Never. Default to Always.
aliases:
- restart_policy
spec_template_spec_scheduler_name:
description:
- If specified, the pod will be dispatched by specified scheduler. If not specified,
the pod will be dispatched by default scheduler.
aliases:
- scheduler_name
spec_template_spec_security_context_fs_group:
description:
- "A special supplemental group that applies to all containers in a pod. Some\
\ volume types allow the Kubelet to change the ownership of that volume to be\
\ owned by the pod: 1. The owning GID will be the FSGroup 2. The setgid bit\
\ is set (new files created in the volume will be owned by FSGroup) 3. The permission\
\ bits are OR'd with rw-rw---- If unset, the Kubelet will not modify the ownership\
\ and permissions of any volume."
aliases:
- security_context_fs_group
type: int
spec_template_spec_security_context_run_as_non_root:
description:
- Indicates that the container must run as a non-root user. If true, the Kubelet
will validate the image at runtime to ensure that it does not run as UID 0 (root)
and fail to start the container if it does. If unset or false, no such validation
will be performed. May also be set in SecurityContext. If set in both SecurityContext
and PodSecurityContext, the value specified in SecurityContext takes precedence.
aliases:
- security_context_run_as_non_root
type: bool
spec_template_spec_security_context_run_as_user:
description:
- The UID to run the entrypoint of the container process. Defaults to user specified
in image metadata if unspecified. May also be set in SecurityContext. If set
in both SecurityContext and PodSecurityContext, the value specified in SecurityContext
takes precedence for that container.
aliases:
- security_context_run_as_user
type: int
spec_template_spec_security_context_se_linux_options_level:
description:
- Level is SELinux level label that applies to the container.
aliases:
- security_context_se_linux_options_level
spec_template_spec_security_context_se_linux_options_role:
description:
- Role is a SELinux role label that applies to the container.
aliases:
- security_context_se_linux_options_role
spec_template_spec_security_context_se_linux_options_type:
description:
- Type is a SELinux type label that applies to the container.
aliases:
- security_context_se_linux_options_type
spec_template_spec_security_context_se_linux_options_user:
description:
- User is a SELinux user label that applies to the container.
aliases:
- security_context_se_linux_options_user
spec_template_spec_security_context_supplemental_groups:
description:
- A list of groups applied to the first process run in each container, in addition
to the container's primary GID. If unspecified, no groups will be added to any
container.
aliases:
- security_context_supplemental_groups
type: list
spec_template_spec_service_account:
description:
- 'DeprecatedServiceAccount is a depreciated alias for ServiceAccountName. Deprecated:
Use serviceAccountName instead.'
aliases:
- service_account
spec_template_spec_service_account_name:
description:
- ServiceAccountName is the name of the ServiceAccount to use to run this pod.
aliases:
- service_account_name
spec_template_spec_subdomain:
description:
- If specified, the fully qualified Pod hostname will be "<hostname>.<subdomain>.<pod
namespace>.svc.<cluster domain>". If not specified, the pod will not have a
domainname at all.
aliases:
- subdomain
spec_template_spec_termination_grace_period_seconds:
description:
- Optional duration in seconds the pod needs to terminate gracefully. May be decreased
in delete request. Value must be non-negative integer. The value zero indicates
delete immediately. If this value is nil, the default grace period will be used
instead. The grace period is the duration in seconds after the processes running
in the pod are sent a termination signal and the time when the processes are
forcibly halted with a kill signal. Set this value longer than the expected
cleanup time for your process. Defaults to 30 seconds.
aliases:
- termination_grace_period_seconds
type: int
spec_template_spec_tolerations:
description:
- If specified, the pod's tolerations.
aliases:
- tolerations
type: list
spec_template_spec_volumes:
description:
- List of volumes that can be mounted by containers belonging to the pod.
aliases:
- volumes
type: list
src:
description:
- Provide a path to a file containing the YAML definition of the object. Mutually
exclusive with I(resource_definition).
type: path
ssl_ca_cert:
description:
- Path to a CA certificate used to authenticate with the API.
type: path
state:
description:
- Determines if an object should be created, patched, or deleted. When set to
C(present), the object will be created, if it does not exist, or patched, if
parameter values differ from the existing object's attributes, and deleted,
if set to C(absent). A patch operation results in merging lists and updating
dictionaries, with lists being merged into a unique set of values. If a list
contains a dictionary with a I(name) or I(type) attribute, a strategic merge
is performed, where individual elements with a matching I(name_) or I(type)
are merged. To force the replacement of lists, set the I(force) option to C(True).
default: present
choices:
- present
- absent
username:
description:
- Provide a username for connecting to the API.
verify_ssl:
description:
- Whether or not to verify the API server's SSL certificates.
type: bool
requirements:
- kubernetes == 4.0.0
'''
EXAMPLES = '''
'''
RETURN = '''
api_version:
description: Requested API version
type: string
job:
type: complex
returned: when I(state) = C(present)
contains:
api_version:
description:
- APIVersion defines the versioned schema of this representation of an object.
Servers should convert recognized schemas to the latest internal value, and
may reject unrecognized values.
type: str
kind:
description:
- Kind is a string value representing the REST resource this object represents.
Servers may infer this from the endpoint the client submits requests to. Cannot
be updated. In CamelCase.
type: str
metadata:
description:
- Standard object's metadata.
type: complex
spec:
description:
- Specification of the desired behavior of a job.
type: complex
status:
description:
- Current status of a job.
type: complex
'''
def main():
try:
module = KubernetesAnsibleModule('job', 'v1')
except KubernetesAnsibleException as exc:
# The helper failed to init, so there is no module object. All we can do is raise the error.
raise Exception(exc.message)
try:
module.execute_module()
except KubernetesAnsibleException as exc:
module.fail_json(msg="Module failed!", error=str(exc))
if __name__ == '__main__':
main()