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Specification

Property Type Description

apiVersion

string

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. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

kind

string

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. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

metadata

ObjectMeta

Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

spec

object

DeploymentSpec is the specification of the desired behavior of the Deployment.

status

object

DeploymentStatus is the most recently observed status of the Deployment.

.spec

Description

DeploymentSpec is the specification of the desired behavior of the Deployment.

Type

object

Required
  • selector

  • template

Property Type Description

minReadySeconds

integer

Minimum number of seconds for which a newly created pod should be ready without any of its container crashing, for it to be considered available. Defaults to 0 (pod will be considered available as soon as it is ready)

paused

boolean

Indicates that the deployment is paused.

progressDeadlineSeconds

integer

The maximum time in seconds for a deployment to make progress before it is considered to be failed. The deployment controller will continue to process failed deployments and a condition with a ProgressDeadlineExceeded reason will be surfaced in the deployment status. Note that progress will not be estimated during the time a deployment is paused. Defaults to 600s.

replicas

integer

Number of desired pods. This is a pointer to distinguish between explicit zero and not specified. Defaults to 1.

revisionHistoryLimit

integer

The number of old ReplicaSets to retain to allow rollback. This is a pointer to distinguish between explicit zero and not specified. Defaults to 10.

selector

LabelSelector

Label selector for pods. Existing ReplicaSets whose pods are selected by this will be the ones affected by this deployment. It must match the pod template’s labels.

strategy

object

DeploymentStrategy describes how to replace existing pods with new ones.

template

PodTemplateSpec

Template describes the pods that will be created.

.spec.strategy

Description

DeploymentStrategy describes how to replace existing pods with new ones.

Type

object

Property Type Description

rollingUpdate

object

Spec to control the desired behavior of rolling update.

type

string

Type of deployment. Can be "Recreate" or "RollingUpdate". Default is RollingUpdate.

Possible enum values: - "Recreate" Kill all existing pods before creating new ones. - "RollingUpdate" Replace the old ReplicaSets by new one using rolling update i.e gradually scale down the old ReplicaSets and scale up the new one.

.spec.strategy.rollingUpdate

Description

Spec to control the desired behavior of rolling update.

Type

object

Property Type Description

maxSurge

IntOrString

The maximum number of pods that can be scheduled above the desired number of pods. Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%). This can not be 0 if MaxUnavailable is 0. Absolute number is calculated from percentage by rounding up. Defaults to 25%. Example: when this is set to 30%, the new ReplicaSet can be scaled up immediately when the rolling update starts, such that the total number of old and new pods do not exceed 130% of desired pods. Once old pods have been killed, new ReplicaSet can be scaled up further, ensuring that total number of pods running at any time during the update is at most 130% of desired pods.

maxUnavailable

IntOrString

The maximum number of pods that can be unavailable during the update. Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%). Absolute number is calculated from percentage by rounding down. This can not be 0 if MaxSurge is 0. Defaults to 25%. Example: when this is set to 30%, the old ReplicaSet can be scaled down to 70% of desired pods immediately when the rolling update starts. Once new pods are ready, old ReplicaSet can be scaled down further, followed by scaling up the new ReplicaSet, ensuring that the total number of pods available at all times during the update is at least 70% of desired pods.

.status

Description

DeploymentStatus is the most recently observed status of the Deployment.

Type

object

Property Type Description

availableReplicas

integer

Total number of available pods (ready for at least minReadySeconds) targeted by this deployment.

collisionCount

integer

Count of hash collisions for the Deployment. The Deployment controller uses this field as a collision avoidance mechanism when it needs to create the name for the newest ReplicaSet.

conditions

array

Represents the latest available observations of a deployment’s current state.

conditions[]

object

DeploymentCondition describes the state of a deployment at a certain point.

observedGeneration

integer

The generation observed by the deployment controller.

readyReplicas

integer

readyReplicas is the number of pods targeted by this Deployment with a Ready Condition.

replicas

integer

Total number of non-terminated pods targeted by this deployment (their labels match the selector).

unavailableReplicas

integer

Total number of unavailable pods targeted by this deployment. This is the total number of pods that are still required for the deployment to have 100% available capacity. They may either be pods that are running but not yet available or pods that still have not been created.

updatedReplicas

integer

Total number of non-terminated pods targeted by this deployment that have the desired template spec.

.status.conditions

Description

Represents the latest available observations of a deployment’s current state.

Type

array

.status.conditions[]

Description

DeploymentCondition describes the state of a deployment at a certain point.

Type

object

Required
  • type

  • status

Property Type Description

lastTransitionTime

Time

Last time the condition transitioned from one status to another.

lastUpdateTime

Time

The last time this condition was updated.

message

string

A human readable message indicating details about the transition.

reason

string

The reason for the condition’s last transition.

status

string

Status of the condition, one of True, False, Unknown.

type

string

Type of deployment condition.

API endpoints

The following API endpoints are available:

  • /apis/apps/v1/deployments

    • GET: list or watch objects of kind Deployment

  • /apis/apps/v1/watch/deployments

    • GET: watch individual changes to a list of Deployment. deprecated: use the 'watch' parameter with a list operation instead.

  • /apis/apps/v1/namespaces/{namespace}/deployments

    • DELETE: delete collection of Deployment

    • GET: list or watch objects of kind Deployment

    • POST: create a Deployment

  • /apis/apps/v1/watch/namespaces/{namespace}/deployments

    • GET: watch individual changes to a list of Deployment. deprecated: use the 'watch' parameter with a list operation instead.

  • /apis/apps/v1/namespaces/{namespace}/deployments/{name}

    • DELETE: delete a Deployment

    • GET: read the specified Deployment

    • PATCH: partially update the specified Deployment

    • PUT: replace the specified Deployment

  • /apis/apps/v1/watch/namespaces/{namespace}/deployments/{name}

    • GET: watch changes to an object of kind Deployment. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter.

  • /apis/apps/v1/namespaces/{namespace}/deployments/{name}/status

    • GET: read status of the specified Deployment

    • PATCH: partially update status of the specified Deployment

    • PUT: replace status of the specified Deployment

/apis/apps/v1/deployments

Table 1. Global query parameters
Parameter Type Description

allowWatchBookmarks

boolean

allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored.

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key".

This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

pretty

string

If 'true', then the output is pretty printed.

resourceVersion

string

resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details.

Defaults to unset

resourceVersionMatch

string

resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details.

Defaults to unset

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.

HTTP method

GET

Description

list or watch objects of kind Deployment

Table 2. HTTP responses
HTTP code Reponse body

200 - OK

DeploymentList schema

401 - Unauthorized

Empty

/apis/apps/v1/watch/deployments

Table 3. Global query parameters
Parameter Type Description

allowWatchBookmarks

boolean

allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored.

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key".

This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

pretty

string

If 'true', then the output is pretty printed.

resourceVersion

string

resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details.

Defaults to unset

resourceVersionMatch

string

resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details.

Defaults to unset

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.

HTTP method

GET

Description

watch individual changes to a list of Deployment. deprecated: use the 'watch' parameter with a list operation instead.

Table 4. HTTP responses
HTTP code Reponse body