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stack_crd.yaml
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stack_crd.yaml
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apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
controller-gen.kubebuilder.io/version: v0.14.0
name: stacks.zalando.org
spec:
group: zalando.org
names:
categories:
- all
kind: Stack
listKind: StackList
plural: stacks
singular: stack
scope: Namespaced
versions:
- additionalPrinterColumns:
- description: Number of desired replicas
jsonPath: .spec.replicas
name: Desired
type: integer
- description: Number of current replicas
jsonPath: .status.replicas
name: Current
type: integer
- description: Number of up-to-date replicas
jsonPath: .status.updatedReplicas
name: Up-To-Date
type: integer
- description: Number of ready replicas
jsonPath: .status.readyReplicas
name: Ready
type: integer
- description: Current traffic weight for the stack
jsonPath: .status.actualTrafficWeight
name: Traffic
type: number
- description: Time since the stack didn't get any traffic
jsonPath: .status.noTrafficSince
name: No-Traffic-Since
type: date
- description: Age of the stack
jsonPath: .metadata.creationTimestamp
name: Age
type: date
name: v1
schema:
openAPIV3Schema:
description: |-
Stack defines one version of an application. It is possible to
switch traffic between multiple versions of an application.
properties:
apiVersion:
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.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
type: string
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.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
type: string
metadata:
type: object
spec:
description: |-
StackSpecInternal is the spec part of the Stack, including `ingress` and
`routegroup` specs inherited from the parent StackSet.
properties:
autoscaler:
description: Autoscaler is the autoscaling definition for a stack
properties:
behavior:
description: |-
behavior configures the scaling behavior of the target
in both Up and Down directions (scaleUp and scaleDown fields respectively).
If not set, the default HPAScalingRules for scale up and scale down are used.
properties:
scaleDown:
description: |-
scaleDown is scaling policy for scaling Down.
If not set, the default value is to allow to scale down to minReplicas pods, with a
300 second stabilization window (i.e., the highest recommendation for
the last 300sec is used).
properties:
policies:
description: |-
policies is a list of potential scaling polices which can be used during scaling.
At least one policy must be specified, otherwise the HPAScalingRules will be discarded as invalid
items:
description: HPAScalingPolicy is a single policy which
must hold true for a specified past interval.
properties:
periodSeconds:
description: |-
periodSeconds specifies the window of time for which the policy should hold true.
PeriodSeconds must be greater than zero and less than or equal to 1800 (30 min).
format: int32
type: integer
type:
description: type is used to specify the scaling
policy.
type: string
value:
description: |-
value contains the amount of change which is permitted by the policy.
It must be greater than zero
format: int32
type: integer
required:
- periodSeconds
- type
- value
type: object
type: array
x-kubernetes-list-type: atomic
selectPolicy:
description: |-
selectPolicy is used to specify which policy should be used.
If not set, the default value Max is used.
type: string
stabilizationWindowSeconds:
description: |-
stabilizationWindowSeconds is the number of seconds for which past recommendations should be
considered while scaling up or scaling down.
StabilizationWindowSeconds must be greater than or equal to zero and less than or equal to 3600 (one hour).
If not set, use the default values:
- For scale up: 0 (i.e. no stabilization is done).
- For scale down: 300 (i.e. the stabilization window is 300 seconds long).
format: int32
type: integer
type: object
scaleUp:
description: |-
scaleUp is scaling policy for scaling Up.
If not set, the default value is the higher of:
* increase no more than 4 pods per 60 seconds
* double the number of pods per 60 seconds
No stabilization is used.
properties:
policies:
description: |-
policies is a list of potential scaling polices which can be used during scaling.
At least one policy must be specified, otherwise the HPAScalingRules will be discarded as invalid
items:
description: HPAScalingPolicy is a single policy which
must hold true for a specified past interval.
properties:
periodSeconds:
description: |-
periodSeconds specifies the window of time for which the policy should hold true.
PeriodSeconds must be greater than zero and less than or equal to 1800 (30 min).
format: int32
type: integer
type:
description: type is used to specify the scaling
policy.
type: string
value:
description: |-
value contains the amount of change which is permitted by the policy.
It must be greater than zero
format: int32
type: integer
required:
- periodSeconds
- type
- value
type: object
type: array
x-kubernetes-list-type: atomic
selectPolicy:
description: |-
selectPolicy is used to specify which policy should be used.
If not set, the default value Max is used.
type: string
stabilizationWindowSeconds:
description: |-
stabilizationWindowSeconds is the number of seconds for which past recommendations should be
considered while scaling up or scaling down.
StabilizationWindowSeconds must be greater than or equal to zero and less than or equal to 3600 (one hour).
If not set, use the default values:
- For scale up: 0 (i.e. no stabilization is done).
- For scale down: 300 (i.e. the stabilization window is 300 seconds long).
format: int32
type: integer
type: object
type: object
maxReplicas:
description: |-
maxReplicas is the upper limit for the number of replicas to which the autoscaler can scale up.
It cannot be less that minReplicas.
format: int32
type: integer
metrics:
items:
description: AutoscalerMetrics is the type of metric to be be
used for autoscaling.
properties:
average:
anyOf:
- type: integer
- type: string
pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
x-kubernetes-int-or-string: true
averageUtilization:
format: int32
type: integer
clusterScalingSchedule:
description: |-
MetricsClusterScalingSchedule specifies the ClusterScalingSchedule
object which should be used for scaling.
properties:
name:
description: The name of the referenced ClusterScalingSchedule
object.
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
container:
description: |-
optional container name that can be used to scale based on CPU or
Memory metrics of a specific container as opposed to an average of
all containers in a pod.
type: string
endpoint:
description: |-
MetricsEndpoint specified the endpoint where the custom endpoint where the metrics
can be queried
properties:
key:
type: string
name:
type: string
path:
type: string
port:
format: int32
type: integer
required:
- key
- name
- path
- port
type: object
queue:
description: |-
MetricsQueue specifies the SQS queue whose length should be used for
scaling.
properties:
name:
type: string
region:
type: string
required:
- name
- region
type: object
requestsPerSecond:
description: |-
MetricRequestsPerSecond specifies basic information to scale based on
on external RPS metric.
properties:
hostnames:
items:
type: string
type: array
required:
- hostnames
type: object
scalingSchedule:
description: |-
MetricsScalingSchedule specifies the ScalingSchedule object which
should be used for scaling.
properties:
name:
description: The name of the referenced ScalingSchedule
object.
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
type:
description: AutoscalerMetricType is the type of the metric
used for scaling.
enum:
- CPU
- Memory
- AmazonSQS
- PodJSON
- Ingress
- RouteGroup
- ZMON
- ScalingSchedule
- ClusterScalingSchedule
- RequestsPerSecond
type: string
zmon:
description: MetricsZMON specifies the ZMON check which
should be used for scaling.
properties:
aggregators:
items:
description: |-
ZMONMetricAggregatorType is the type of aggregator used in a ZMON based
metric.
enum:
- avg
- dev
- count
- first
- last
- max
- min
- sum
- diff
type: string
type: array
checkID:
pattern: ^[0-9]+$
type: string
duration:
default: 5m
type: string
key:
type: string
tags:
additionalProperties:
type: string
type: object
required:
- checkID
- key
type: object
required:
- type
type: object
type: array
minReplicas:
description: |-
minReplicas is the lower limit for the number of replicas to which the autoscaler can scale down.
It defaults to 1 pod.
format: int32
type: integer
required:
- maxReplicas
- metrics
type: object
configurationResources:
description: |-
ConfigurationResources describes the ConfigMaps, Secrets, and/or
PlatformCredentialsSet that will be created.
items:
description: ConfigurationResourcesSpec makes it possible to defined
the config resources to be created
properties:
configMap:
description: ConfigMap is an inline ConfigMap to be owned by
Stack
properties:
data:
additionalProperties:
type: string
description: Data is the data of the ConfigMap.
type: object
name:
description: Name is the name of the ConfigMap.
type: string
type: object
configMapRef:
description: ConfigMapRef is a reference to a ConfigMap to be
owned by Stack
properties:
name:
description: |-
Name of the referent.
More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
TODO: Add other useful fields. apiVersion, kind, uid?
type: string
type: object
x-kubernetes-map-type: atomic
platformCredentialsSet:
description: PlatformCredentialsSet to be created and owned
by Stack
properties:
name:
type: string
tokens:
additionalProperties:
properties:
privileges:
items:
type: string
type: array
required:
- privileges
type: object
type: object
type: object
secretRef:
description: SecretRef is a reference to a Secret to be owned
by Stack
properties:
name:
description: |-
Name of the referent.
More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
TODO: Add other useful fields. apiVersion, kind, uid?
type: string
type: object
x-kubernetes-map-type: atomic
type: object
type: array
externalIngress:
description: Stack specific ExternalIngress, based on the parent StackSet
at creation time.
properties:
backendPort:
anyOf:
- type: integer
- type: string
x-kubernetes-int-or-string: true
required:
- backendPort
type: object
ingress:
description: Stack specific Ingress, based on the parent StackSet
at creation time.
properties:
backendPort:
anyOf:
- type: integer
- type: string
x-kubernetes-int-or-string: true
hosts:
items:
type: string
minItems: 1
type: array
x-kubernetes-list-type: set
metadata:
description: |-
EmbeddedObjectMetaWithAnnotations defines the metadata which can be attached
to a resource. It's a slimmed down version of metav1.ObjectMeta only
containing annotations.
properties:
annotations:
additionalProperties:
type: string
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.
More info: http://kubernetes.io/docs/user-guide/annotations
type: object
type: object
path:
type: string
required:
- backendPort
- hosts
type: object
minReadySeconds:
description: |-
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)
format: int32
type: integer
podTemplate:
description: PodTemplate describes the pods that will be created.
properties:
metadata:
description: Object's metadata.
properties:
annotations:
additionalProperties:
type: string
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.
More info: http://kubernetes.io/docs/user-guide/annotations
type: object
labels:
additionalProperties:
type: string
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.
More info: http://kubernetes.io/docs/user-guide/labels
type: object
type: object
spec:
description: |-
Specification of the desired behavior of the pod.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
properties:
activeDeadlineSeconds:
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.
format: int64
type: integer
affinity:
description: If specified, the pod's scheduling constraints
properties:
nodeAffinity:
description: Describes node affinity scheduling rules
for the pod.
properties:
preferredDuringSchedulingIgnoredDuringExecution:
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.
items:
description: |-
An empty preferred scheduling term matches all objects with implicit weight 0
(i.e. it's a no-op). A null preferred scheduling term matches no objects (i.e. is also a no-op).
properties:
preference:
description: A node selector term, associated
with the corresponding weight.
properties:
matchExpressions:
description: A list of node selector requirements
by node's labels.
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchFields:
description: A list of node selector requirements
by node's fields.
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
type: object
x-kubernetes-map-type: atomic
weight:
description: Weight associated with matching
the corresponding nodeSelectorTerm, in the
range 1-100.
format: int32
type: integer
required:
- preference
- weight
type: object
type: array
requiredDuringSchedulingIgnoredDuringExecution:
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 an update), the system
may or may not try to eventually evict the pod from its node.
properties:
nodeSelectorTerms:
description: Required. A list of node selector
terms. The terms are ORed.
items:
description: |-
A null or empty node selector term matches no objects. The requirements of
them are ANDed.
The TopologySelectorTerm type implements a subset of the NodeSelectorTerm.
properties:
matchExpressions:
description: A list of node selector requirements
by node's labels.
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchFields:
description: A list of node selector requirements
by node's fields.
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
type: object
x-kubernetes-map-type: atomic
type: array
required:
- nodeSelectorTerms
type: object
x-kubernetes-map-type: atomic
type: object
podAffinity:
description: Describes pod affinity scheduling rules (e.g.
co-locate this pod in the same node, zone, etc. as some
other pod(s)).
properties:
preferredDuringSchedulingIgnoredDuringExecution:
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.
items:
description: The weights of all of the matched WeightedPodAffinityTerm
fields are added per-node to find the most preferred
node(s)
properties:
podAffinityTerm:
description: Required. A pod affinity term,
associated with the corresponding weight.
properties:
labelSelector:
description: |-
A label query over a set of resources, in this case pods.
If it's null, this PodAffinityTerm matches with no Pods.
properties:
matchExpressions:
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchLabels:
additionalProperties:
type: string
type: object
type: object
x-kubernetes-map-type: atomic
matchLabelKeys:
items:
type: string
type: array
x-kubernetes-list-type: atomic
mismatchLabelKeys:
items:
type: string
type: array
x-kubernetes-list-type: atomic
namespaceSelector:
description: |-
A label query over the set of namespaces that the term applies to.
The term is applied to the union of the namespaces selected by this field
and the ones listed in the namespaces field.
null selector and null or empty namespaces list means "this pod's namespace".
An empty selector ({}) matches all namespaces.
properties:
matchExpressions:
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchLabels:
additionalProperties:
type: string
type: object
type: object
x-kubernetes-map-type: atomic
namespaces:
description: |-
namespaces specifies a static list of namespace names that the term applies to.
The term is applied to the union of the namespaces listed in this field
and the ones selected by namespaceSelector.
null or empty namespaces list and null namespaceSelector means "this pod's namespace".
items:
type: string
type: array
topologyKey:
description: |-
This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching
the labelSelector in the specified namespaces, where co-located is defined as running on a node
whose value of the label with key topologyKey matches that of any node on which any of the
selected pods is running.
Empty topologyKey is not allowed.
type: string
required:
- topologyKey
type: object
weight:
description: |-
weight associated with matching the corresponding podAffinityTerm,
in the range 1-100.
format: int32
type: integer
required:
- podAffinityTerm
- weight
type: object
type: array
requiredDuringSchedulingIgnoredDuringExecution:
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.
items:
description: |-
Defines a set of pods (namely those matching the labelSelector
relative to the given namespace(s)) that this pod should be
co-located (affinity) or not co-located (anti-affinity) with,
where co-located is defined as running on a node whose value of
the label with key <topologyKey> matches that of any node on which
a pod of the set of pods is running
properties:
labelSelector:
description: |-
A label query over a set of resources, in this case pods.
If it's null, this PodAffinityTerm matches with no Pods.
properties:
matchExpressions:
description: matchExpressions is a list
of label selector requirements. The requirements
are ANDed.
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchLabels:
additionalProperties:
type: string
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.
type: object
type: object
x-kubernetes-map-type: atomic
matchLabelKeys:
description: |-
MatchLabelKeys is a set of pod label keys to select which pods will
be taken into consideration. The keys are used to lookup values from the
incoming pod labels, those key-value labels are merged with `LabelSelector` as `key in (value)`
to select the group of existing pods which pods will be taken into consideration
for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming
pod labels will be ignored. The default value is empty.
The same key is forbidden to exist in both MatchLabelKeys and LabelSelector.
Also, MatchLabelKeys cannot be set when LabelSelector isn't set.
This is an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate.
items:
type: string
type: array
x-kubernetes-list-type: atomic
mismatchLabelKeys:
description: |-
MismatchLabelKeys is a set of pod label keys to select which pods will
be taken into consideration. The keys are used to lookup values from the
incoming pod labels, those key-value labels are merged with `LabelSelector` as `key notin (value)`
to select the group of existing pods which pods will be taken into consideration
for the incoming pod's pod (anti) affinity. Keys that don't exist in the incoming
pod labels will be ignored. The default value is empty.
The same key is forbidden to exist in both MismatchLabelKeys and LabelSelector.
Also, MismatchLabelKeys cannot be set when LabelSelector isn't set.
This is an alpha field and requires enabling MatchLabelKeysInPodAffinity feature gate.
items:
type: string
type: array
x-kubernetes-list-type: atomic
namespaceSelector:
description: |-
A label query over the set of namespaces that the term applies to.
The term is applied to the union of the namespaces selected by this field
and the ones listed in the namespaces field.
null selector and null or empty namespaces list means "this pod's namespace".
An empty selector ({}) matches all namespaces.
properties:
matchExpressions:
description: matchExpressions is a list
of label selector requirements. The requirements
are ANDed.
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchLabels:
additionalProperties:
type: string
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.
type: object
type: object
x-kubernetes-map-type: atomic
namespaces:
description: |-
namespaces specifies a static list of namespace names that the term applies to.
The term is applied to the union of the namespaces listed in this field
and the ones selected by namespaceSelector.
null or empty namespaces list and null namespaceSelector means "this pod's namespace".
items:
type: string
type: array
topologyKey:
description: |-
This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching
the labelSelector in the specified namespaces, where co-located is defined as running on a node
whose value of the label with key topologyKey matches that of any node on which any of the
selected pods is running.
Empty topologyKey is not allowed.
type: string
required:
- topologyKey
type: object
type: array
type: object
podAntiAffinity:
description: Describes pod anti-affinity scheduling rules
(e.g. avoid putting this pod in the same node, zone,
etc. as some other pod(s)).
properties:
preferredDuringSchedulingIgnoredDuringExecution:
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.
items:
description: The weights of all of the matched WeightedPodAffinityTerm
fields are added per-node to find the most preferred
node(s)
properties:
podAffinityTerm:
description: Required. A pod affinity term,
associated with the corresponding weight.
properties:
labelSelector:
description: |-
A label query over a set of resources, in this case pods.
If it's null, this PodAffinityTerm matches with no Pods.
properties:
matchExpressions:
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator
type: object
type: array
matchLabels:
additionalProperties:
type: string
type: object
type: object
x-kubernetes-map-type: atomic
matchLabelKeys:
items:
type: string
type: array
x-kubernetes-list-type: atomic
mismatchLabelKeys:
items:
type: string
type: array
x-kubernetes-list-type: atomic
namespaceSelector:
description: |-
A label query over the set of namespaces that the term applies to.
The term is applied to the union of the namespaces selected by this field
and the ones listed in the namespaces field.
null selector and null or empty namespaces list means "this pod's namespace".
An empty selector ({}) matches all namespaces.
properties:
matchExpressions:
items:
properties:
key:
type: string
operator:
type: string
values:
items:
type: string
type: array
required:
- key
- operator