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stackset_crd.yaml
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stackset_crd.yaml
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apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
controller-gen.kubebuilder.io/version: v0.9.2
creationTimestamp: null
name: stacksets.zalando.org
spec:
group: zalando.org
names:
categories:
- all
kind: StackSet
listKind: StackSetList
plural: stacksets
singular: stackset
scope: Namespaced
versions:
- additionalPrinterColumns:
- description: Number of Stacks belonging to the StackSet
jsonPath: .status.stacks
name: Stacks
type: integer
- description: Number of Ready Stacks
jsonPath: .status.readyStacks
name: Ready
type: integer
- description: Number of Ready Stacks with traffic
jsonPath: .status.stacksWithTraffic
name: Traffic
type: integer
- description: Age of the stack
jsonPath: .metadata.creationTimestamp
name: Age
type: date
name: v1
schema:
openAPIV3Schema:
description: StackSet describes an application resource.
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: StackSetSpec is the spec part of the StackSet.
properties:
externalIngress:
description: ExternalIngress is used to specify the backend port to
generate the services for the stacks.
properties:
backendPort:
anyOf:
- type: integer
- type: string
x-kubernetes-int-or-string: true
required:
- backendPort
type: object
ingress:
description: Ingress is the information we need to create ingress
and service. Ingress is optional, because other controller might
create ingress objects, but stackset owns the traffic switch. In
this case we would only have a Traffic, but no ingress.
properties:
backendPort:
anyOf:
- type: integer
- type: string
x-kubernetes-int-or-string: true
hosts:
items:
type: string
type: array
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
minReadyPercent:
description: minReadyPercent sets the minimum percentage of Pods expected
to be Ready to consider a Stack for traffic switch
type: integer
routegroup:
description: RouteGroup is an alternative to ingress allowing more
advanced routing configuration while still maintaining the ability
to switch traffic to stacks. Use this if you need skipper filters
or predicates.
properties:
additionalBackends:
description: AdditionalBackends is the list of additional backends
to use for routing.
items:
properties:
address:
description: Address is required for type `network`
type: string
algorithm:
description: Algorithm is required for type `lb`. `roundRobin`
- backend is chosen by the round robin algorithm, starting
with a random selected backend to spread across all backends
from the beginning. `random` - backend is chosen at random.
`consistentHash` - backend is chosen by [consistent hashing](https://en.wikipedia.org/wiki/Consistent_hashing)
algorithm based on the request key. The request key is
derived from `X-Forwarded-For` header or request remote
IP address as the fallback. Use [`consistentHashKey`](filters.md#consistenthashkey)
filter to set the request key. Use [`consistentHashBalanceFactor`](filters.md#consistenthashbalancefactor)
to prevent popular keys from overloading a single backend
endpoint. `powerOfRandomNChoices` - backend is chosen
by selecting N random endpoints and picking the one with
least outstanding requests from them (see http://www.eecs.harvard.edu/~michaelm/postscripts/handbook2001.pdf).
enum:
- roundRobin
- random
- consistentHash
- powerOfRandomNChoices
type: string
endpoints:
description: Endpoints is required for type `lb`
items:
type: string
minItems: 1
type: array
name:
description: Name is the BackendName that can be referenced
as RouteGroupBackendReference
type: string
serviceName:
description: ServiceName is required for type `service`
type: string
servicePort:
description: ServicePort is required for type `service`
type: integer
type:
description: Type of the backend. `service`- resolve Kubernetes
service to the available Endpoints belonging to the Service,
and generate load balanced routes using them. `shunt`
- reply directly from the proxy itself. This can be used
to shortcut, for example have a default that replies with
404 or use skipper as a backend serving static content
in demos. `loopback` - lookup again the routing table
to a better matching route after processing the current
route. Like this you can add some headers or change the
request path for some specific matching requests. `dynamic`
- use the backend provided by filters. This allows skipper
as library users to do proxy calls to a certain target
from their own implementation dynamically looked up by
their filters. `lb` - balance the load across multiple
network endpoints using specified algorithm. If algorithm
is not specified it will use the default algorithm set
by Skipper at start. `network` - use arbitrary HTTP or
HTTPS URL.
enum:
- service
- shunt
- loopback
- dynamic
- lb
- network
type: string
required:
- name
- type
type: object
type: array
backendPort:
type: integer
hosts:
description: Hosts is the list of hostnames to add to the routegroup.
items:
type: string
type: array
lbAlgorithm:
description: The load balancing algorithm used for the generated
per stack backends.
type: string
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
routes:
description: Routes is the list of routes to be applied to the
routegroup.
items:
properties:
backends:
description: RouteGroupBackendReference specifies the list
of backendReference that should be applied to override
the defaultBackends
items:
properties:
backendName:
description: BackendName references backend by name
type: string
weight:
description: Weight defines a portion of traffic for
the referenced backend. It equals to weight divided
by the sum of all backend weights. When all references
have zero (or unspecified) weight then traffic is
split equally between them.
minimum: 0
type: integer
required:
- backendName
type: object
type: array
filters:
description: Filters specifies the list of filters applied
to the routeSpec
items:
type: string
type: array
methods:
description: Methods defines valid HTTP methods for the
specified routeSpec
items:
description: HTTPMethod is a valid HTTP method in uppercase.
enum:
- GET
- HEAD
- POST
- PUT
- PATCH
- DELETE
- CONNECT
- OPTIONS
- TRACE
type: string
type: array
path:
description: Path specifies Path predicate, only one of
Path or PathSubtree is allowed
type: string
pathRegexp:
description: PathRegexp can be added additionally
type: string
pathSubtree:
description: PathSubtree specifies PathSubtree predicate,
only one of Path or PathSubtree is allowed
type: string
predicates:
description: Predicates specifies the list of predicates
applied to the routeSpec
items:
type: string
type: array
type: object
minItems: 1
type: array
required:
- backendPort
- hosts
- routes
type: object
stackLifecycle:
description: StackLifecycle defines the cleanup rules for old stacks.
properties:
limit:
description: Limit defines the maximum number of Stacks to keep
around. If the number of Stacks exceeds the limit then the oldest
stacks which are not getting traffic are deleted.
format: int32
minimum: 1
type: integer
scaledownTTLSeconds:
description: ScaledownTTLSeconds is the ttl in seconds for when
Stacks of a StackSet should be scaled down to 0 replicas in
case they are not getting traffic. Defaults to 300 seconds.
format: int64
type: integer
type: object
stackTemplate:
description: StackTemplate container for resources to be created that
belong to one stack.
properties:
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
spec:
description: StackSpecTemplate is the spec part of the Stack.
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
that will be created. Later Secrets and PlatformCredentialSets
will also be defined on ConfigurationResources
items:
description: ConfigurationResourcesSpec makes it possible
to defined the config resources to be created
properties:
configMapRef:
description: 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
secretRef:
description: 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
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:
description: A node selector requirement
is a selector that contains
values, a key, and an operator
that relates the key and values.
properties:
key:
description: The label key
that the selector applies
to.
type: string
operator:
description: Represents a
key's relationship to a
set of values. Valid operators
are In, NotIn, Exists, DoesNotExist.
Gt, and Lt.
type: string
values:
description: An array of string
values. If the operator
is In or NotIn, the values
array must be non-empty.
If the operator is Exists
or DoesNotExist, the values
array must be empty. If
the operator is Gt or Lt,
the values array must have
a single element, which
will be interpreted as an
integer. This array is replaced
during a strategic merge
patch.
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:
description: A node selector requirement
is a selector that contains
values, a key, and an operator
that relates the key and values.
properties:
key:
description: The label key
that the selector applies
to.
type: string
operator:
description: Represents a
key's relationship to a
set of values. Valid operators
are In, NotIn, Exists, DoesNotExist.
Gt, and Lt.
type: string
values:
description: An array of string
values. If the operator
is In or NotIn, the values
array must be non-empty.
If the operator is Exists
or DoesNotExist, the values
array must be empty. If
the operator is Gt or Lt,
the values array must have
a single element, which
will be interpreted as an
integer. This array is replaced
during a strategic merge
patch.
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:
description: A node selector requirement
is a selector that contains
values, a key, and an operator
that relates the key and values.
properties:
key:
description: The label key
that the selector applies
to.
type: string
operator:
description: Represents a
key's relationship to a
set of values. Valid operators
are In, NotIn, Exists, DoesNotExist.
Gt, and Lt.
type: string
values:
description: An array of string
values. If the operator
is In or NotIn, the values
array must be non-empty.
If the operator is Exists
or DoesNotExist, the values
array must be empty. If
the operator is Gt or Lt,
the values array must have
a single element, which
will be interpreted as an
integer. This array is replaced
during a strategic merge
patch.
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:
description: A node selector requirement
is a selector that contains
values, a key, and an operator
that relates the key and values.
properties:
key:
description: The label key
that the selector applies
to.
type: string
operator:
description: Represents a
key's relationship to a
set of values. Valid operators
are In, NotIn, Exists, DoesNotExist.
Gt, and Lt.
type: string
values:
description: An array of string
values. If the operator
is In or NotIn, the values
array must be non-empty.
If the operator is Exists
or DoesNotExist, the values
array must be empty. If
the operator is Gt or Lt,
the values array must have
a single element, which
will be interpreted as an
integer. This array is replaced
during a strategic merge
patch.
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.
properties:
matchExpressions:
description: matchExpressions
is a list of label selector
requirements. The requirements
are ANDed.
items:
description: A label selector
requirement is a selector
that contains values, a
key, and an operator that
relates the key and values.
properties:
key:
description: key is the
label key that the selector
applies to.
type: string
operator:
type: string