ReplicationController represents the configuration of a replication controller.
ReplicationController represents the configuration of a replication controller.
object
Property | Type | 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 |
|
|
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 |
|
If the Labels of a ReplicationController are empty, they are defaulted to be the same as the Pod(s) that the replication controller manages. Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata |
|
|
|
ReplicationControllerSpec is the specification of a replication controller. |
|
|
ReplicationControllerStatus represents the current status of a replication controller. |
ReplicationControllerSpec is the specification of a replication controller.
object
Property | Type | 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) |
|
|
Replicas is the number of desired replicas. This is a pointer to distinguish between explicit zero and unspecified. Defaults to 1. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller#what-is-a-replicationcontroller |
|
|
Selector is a label query over pods that should match the Replicas count. If Selector is empty, it is defaulted to the labels present on the Pod template. Label keys and values that must match in order to be controlled by this replication controller, if empty defaulted to labels on Pod template. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors |
|
|
PodTemplateSpec describes the data a pod should have when created from a template |
PodTemplateSpec describes the data a pod should have when created from a template
object
Property | Type | Description |
---|---|---|
|
Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata |
|
|
|
PodSpec is a description of a pod. |
PodSpec is a description of a pod.
object
containers
Property | Type | 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. |
|
|
Affinity is a group of affinity scheduling rules. |
|
|
AutomountServiceAccountToken indicates whether a service account token should be automatically mounted. |
|
|
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. |
|
|
A single application container that you want to run within a pod. |
|
|
PodDNSConfig defines the DNS parameters of a pod in addition to those generated from DNSPolicy. |
|
|
Set DNS policy for the pod. Defaults to "ClusterFirst". Valid values are 'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'. DNS parameters given in DNSConfig will be merged with the policy selected with DNSPolicy. To have DNS options set along with hostNetwork, you have to specify DNS policy explicitly to 'ClusterFirstWithHostNet'. |
|
|
EnableServiceLinks indicates whether information about services should be injected into pod’s environment variables, matching the syntax of Docker links. Optional: Defaults to true. |
|
|
List of ephemeral containers run in this pod. Ephemeral containers may be run in an existing pod to perform user-initiated actions such as debugging. This list cannot be specified when creating a pod, and it cannot be modified by updating the pod spec. In order to add an ephemeral container to an existing pod, use the pod’s ephemeralcontainers subresource. This field is alpha-level and is only honored by servers that enable the EphemeralContainers feature. |
|
|
An EphemeralContainer is a container that may be added temporarily to an existing pod for user-initiated activities such as debugging. Ephemeral containers have no resource or scheduling guarantees, and they will not be restarted when they exit or when a pod is removed or restarted. If an ephemeral container causes a pod to exceed its resource allocation, the pod may be evicted. Ephemeral containers may not be added by directly updating the pod spec. They must be added via the pod’s ephemeralcontainers subresource, and they will appear in the pod spec once added. This is an alpha feature enabled by the EphemeralContainers feature flag. |
|
|
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. |
|
|
HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the pod’s hosts file. |
|
|
Use the host’s ipc namespace. Optional: Default to false. |
|
|
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. |
|
|
Use the host’s pid namespace. Optional: Default to false. |
|
|
Specifies the hostname of the Pod If not specified, the pod’s hostname will be set to a system-defined value. |
|
|
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. More info: https://kubernetes.io/docs/concepts/containers/images#specifying-imagepullsecrets-on-a-pod |
|
|
LocalObjectReference contains enough information to let you locate the referenced object inside the same namespace. |
|
|
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, Liveness probes, or Startup 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. More info: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/ |
|
|
A single application container that you want to run within a pod. |
|
|
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. |
|
|
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. More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/ |
|
Overhead represents the resource overhead associated with running a pod for a given RuntimeClass. This field will be autopopulated at admission time by the RuntimeClass admission controller. If the RuntimeClass admission controller is enabled, overhead must not be set in Pod create requests. The RuntimeClass admission controller will reject Pod create requests which have the overhead already set. If RuntimeClass is configured and selected in the PodSpec, Overhead will be set to the value defined in the corresponding RuntimeClass, otherwise it will remain unset and treated as zero. More info: https://git.k8s.io/enhancements/keps/sig-node/688-pod-overhead/README.md This field is beta-level as of Kubernetes v1.18, and is only honored by servers that enable the PodOverhead feature. |
|
|
|
PreemptionPolicy is the Policy for preempting pods with lower priority. One of Never, PreemptLowerPriority. Defaults to PreemptLowerPriority if unset. This field is beta-level, gated by the NonPreemptingPriority feature-gate. |
|
|
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. |
|
|
If specified, indicates the pod’s priority. "system-node-critical" and "system-cluster-critical" are two special keywords which indicate the highest priorities with the former being 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. |
|
|
If specified, all readiness gates will be evaluated for pod readiness. A pod is ready when all its containers are ready AND all conditions specified in the readiness gates have status equal to "True" More info: https://git.k8s.io/enhancements/keps/sig-network/580-pod-readiness-gates |
|
|
PodReadinessGate contains the reference to a pod condition |
|
|
Restart policy for all containers within the pod. One of Always, OnFailure, Never. Default to Always. More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#restart-policy |
|
|
RuntimeClassName refers to a RuntimeClass object in the node.k8s.io group, which should be used to run this pod. If no RuntimeClass resource matches the named class, the pod will not be run. If unset or empty, the "legacy" RuntimeClass will be used, which is an implicit class with an empty definition that uses the default runtime handler. More info: https://git.k8s.io/enhancements/keps/sig-node/585-runtime-class This is a beta feature as of Kubernetes v1.14. |
|
|
If specified, the pod will be dispatched by specified scheduler. If not specified, the pod will be dispatched by default scheduler. |
|
|
PodSecurityContext holds pod-level security attributes and common container settings. Some fields are also present in container.securityContext. Field values of container.securityContext take precedence over field values of PodSecurityContext. |
|
|
DeprecatedServiceAccount is a depreciated alias for ServiceAccountName. Deprecated: Use serviceAccountName instead. |
|
|
ServiceAccountName is the name of the ServiceAccount to use to run this pod. More info: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/ |
|
|
If true the pod’s hostname will be configured as the pod’s FQDN, rather than the leaf name (the default). In Linux containers, this means setting the FQDN in the hostname field of the kernel (the nodename field of struct utsname). In Windows containers, this means setting the registry value of hostname for the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters to FQDN. If a pod does not have FQDN, this has no effect. Default to false. |
|
|
Share a single process namespace between all of the containers in a pod. When this is set containers will be able to view and signal processes from other containers in the same pod, and the first process in each container will not be assigned PID 1. HostPID and ShareProcessNamespace cannot both be set. Optional: Default to false. |
|
|
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. |
|
|
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 stop immediately via the kill signal (no opportunity to shut down). 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. |
|
|
If specified, the pod’s tolerations. |
|
|
The pod this Toleration is attached to tolerates any taint that matches the triple <key,value,effect> using the matching operator <operator>. |
|
|
TopologySpreadConstraints describes how a group of pods ought to spread across topology domains. Scheduler will schedule pods in a way which abides by the constraints. All topologySpreadConstraints are ANDed. |
|
|
TopologySpreadConstraint specifies how to spread matching pods among the given topology. |
|
|
List of volumes that can be mounted by containers belonging to the pod. More info: https://kubernetes.io/docs/concepts/storage/volumes |
|
|
Volume represents a named volume in a pod that may be accessed by any container in the pod. |
Affinity is a group of affinity scheduling rules.
object
Property | Type | Description |
---|---|---|
|
|
Node affinity is a group of node affinity scheduling rules. |
|
|
Pod affinity is a group of inter pod affinity scheduling rules. |
|
|
Pod anti affinity is a group of inter pod anti affinity scheduling rules. |
Node affinity is a group of node affinity scheduling rules.
object
Property | Type | 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. |
|
|
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). |
|
|
A node selector represents the union of the results of one or more label queries over a set of nodes; that is, it represents the OR of the selectors represented by the node selector terms. |
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.
array
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).
object
weight
preference
Property | Type | 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. |
|
|
Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100. |
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.
object
Property | Type | Description |
---|---|---|
|
|
A list of node selector requirements by node’s labels. |
|
|
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. |
|
|
A list of node selector requirements by node’s fields. |
|
|
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. |
A list of node selector requirements by node’s labels.
array
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
object
key
operator
Property | Type | Description |
---|---|---|
|
|
The label key that the selector applies to. |
|
|
Represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. |
|
|
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. |
A list of node selector requirements by node’s fields.
array
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
object
key
operator
Property | Type | Description |
---|---|---|
|
|
The label key that the selector applies to. |
|
|
Represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. |
|
|
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. |
A node selector represents the union of the results of one or more label queries over a set of nodes; that is, it represents the OR of the selectors represented by the node selector terms.
object
nodeSelectorTerms
Property | Type | Description |
---|---|---|
|
|
Required. A list of node selector terms. The terms are ORed. |
|
|
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. |
Required. A list of node selector terms. The terms are ORed.
array
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.
object
Property | Type | Description |
---|---|---|
|
|
A list of node selector requirements by node’s labels. |
|
|
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. |
|
|
A list of node selector requirements by node’s fields. |
|
|
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values. |
A list of node selector requirements by node’s labels.
array
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
object
key
operator
Property | Type | Description |
---|---|---|
|
|
The label key that the selector applies to. |
|
|
Represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. |
|
|
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. |
A list of node selector requirements by node’s fields.
array
A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
object
key
operator
Property | Type | Description |
---|---|---|
|
|
The label key that the selector applies to. |
|
|
Represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt. |
|
|
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. |
Pod affinity is a group of inter pod affinity scheduling rules.
object
Property | Type | 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. |
|
|
The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s) |
|
|
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. |
|
|
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 |
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.
array
The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s)
object
weight
podAffinityTerm
Property | Type | 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 |
|
|
weight associated with matching the corresponding podAffinityTerm, in the range 1-100. |
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
object
topologyKey
Property | Type | Description |
---|---|---|
|
A label query over a set of resources, in this case pods. |
|
|
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. This field is beta-level and is only honored when PodAffinityNamespaceSelector feature is enabled. |
|
|
|
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" |
|
|
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. |
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.
array
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
object
topologyKey
Property | Type | Description |
---|---|---|
|
A label query over a set of resources, in this case pods. |
|
|
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. This field is beta-level and is only honored when PodAffinityNamespaceSelector feature is enabled. |
|
|
|
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" |
|
|
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. |
Pod anti affinity is a group of inter pod anti affinity scheduling rules.
object
Property | Type | 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. |
|
|
The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s) |
|
|
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. |
|
|
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 |
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.
array
The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s)
object
weight
podAffinityTerm
Property | Type | 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 |
|
|
weight associated with matching the corresponding podAffinityTerm, in the range 1-100. |
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
object
topologyKey
Property | Type | Description |
---|---|---|
|
A label query over a set of resources, in this case pods. |
|
|
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. This field is beta-level and is only honored when PodAffinityNamespaceSelector feature is enabled. |
|
|
|
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" |
|
|
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. |
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.
array
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
object
topologyKey
Property | Type | Description |
---|---|---|
|
A label query over a set of resources, in this case pods. |
|
|
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. This field is beta-level and is only honored when PodAffinityNamespaceSelector feature is enabled. |
|
|
|
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" |
|
|
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. |
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.
array
A single application container that you want to run within a pod.
object
name
Property | Type | Description |
---|---|---|
|
|
Arguments to the entrypoint. The docker image’s CMD is used if this is not provided. Variable references $(VAR_NAME) are expanded using the container’s environment. If a variable cannot be resolved, the reference in the input string will be unchanged. Double are reduced to a single $, which allows for escaping the $(VAR_NAME) syntax: i.e. "(VAR_NAME)" will produce the string literal "$(VAR_NAME)". Escaped references will never be expanded, regardless of whether the variable exists or not. Cannot be updated. More info: https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#running-a-command-in-a-shell |
|
|
Entrypoint array. Not executed within a shell. The docker image’s ENTRYPOINT is used if this is not provided. Variable references $(VAR_NAME) are expanded using the container’s environment. If a variable cannot be resolved, the reference in the input string will be unchanged. Double are reduced to a single $, which allows for escaping the $(VAR_NAME) syntax: i.e. "(VAR_NAME)" will produce the string literal "$(VAR_NAME)". Escaped references will never be expanded, regardless of whether the variable exists or not. Cannot be updated. More info: https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#running-a-command-in-a-shell |
|
|
List of environment variables to set in the container. Cannot be updated. |
|
|
EnvVar represents an environment variable present in a Container. |
|
|
List of sources to populate environment variables in the container. The keys defined within a source must be a C_IDENTIFIER. All invalid keys will be reported as an event when the container is starting. When a key exists in multiple sources, the value associated with the last source will take precedence. Values defined by an Env with a duplicate key will take precedence. Cannot be updated. |
|
|
EnvFromSource represents the source of a set of ConfigMaps |
|
|
Docker image name. More info: https://kubernetes.io/docs/concepts/containers/images This field is optional to allow higher level config management to default or override container images in workload controllers like Deployments and StatefulSets. |
|
|
Image pull policy. One of Always, Never, IfNotPresent. Defaults to Always if :latest tag is specified, or IfNotPresent otherwise. Cannot be updated. More info: https://kubernetes.io/docs/concepts/containers/images#updating-images |
|
|
Lifecycle describes actions that the management system should take in response to container lifecycle events. For the PostStart and PreStop lifecycle handlers, management of the container blocks until the action is complete, unless the container process fails, in which case the handler is aborted. |
|
|
Probe describes a health check to be performed against a container to determine whether it is alive or ready to receive traffic. |
|
|
Name of the container specified as a DNS_LABEL. Each container in a pod must have a unique name (DNS_LABEL). Cannot be updated. |
|
|
List of ports to expose from the container. Exposing a port here gives the system additional information about the network connections a container uses, but is primarily informational. Not specifying a port here DOES NOT prevent that port from being exposed. Any port which is listening on the default "0.0.0.0" address inside a container will be accessible from the network. Cannot be updated. |
|
|
ContainerPort represents a network port in a single container. |
|
|
Probe describes a health check to be performed against a container to determine whether it is alive or ready to receive traffic. |
|
|
ResourceRequirements describes the compute resource requirements. |
|
|
SecurityContext holds security configuration that will be applied to a container. Some fields are present in both SecurityContext and PodSecurityContext. When both are set, the values in SecurityContext take precedence. |
|
|
Probe describes a health check to be performed against a container to determine whether it is alive or ready to receive traffic. |
|
|
Whether this container should allocate a buffer for stdin in the container runtime. If this is not set, reads from stdin in the container will always result in EOF. Default is false. |
|
|
Whether the container runtime should close the stdin channel after it has been opened by a single attach. When stdin is true the stdin stream will remain open across multiple attach sessions. If stdinOnce is set to true, stdin is opened on container start, is empty until the first client attaches to stdin, and then remains open and accepts data until the client disconnects, at which time stdin is closed and remains closed until the container is restarted. If this flag is false, a container processes that reads from stdin will never receive an EOF. Default is false |
|
|
Optional: Path at which the file to which the container’s termination message will be written is mounted into the container’s filesystem. Message written is intended to be brief final status, such as an assertion failure message. Will be truncated by the node if greater than 4096 bytes. The total message length across all containers will be limited to 12kb. Defaults to /dev/termination-log. Cannot be updated. |
|
|
Indicate how the termination message should be populated. File will use the contents of terminationMessagePath to populate the container status message on both success and failure. FallbackToLogsOnError will use the last chunk of container log output if the termination message file is empty and the container exited with an error. The log output is limited to 2048 bytes or 80 lines, whichever is smaller. Defaults to File. Cannot be updated. |
|
|
Whether this container should allocate a TTY for itself, also requires 'stdin' to be true. Default is false. |
|
|
volumeDevices is the list of block devices to be used by the container. |
|
|
volumeDevice describes a mapping of a raw block device within a container. |
|
|
Pod volumes to mount into the container’s filesystem. Cannot be updated. |
|
|
VolumeMount describes a mounting of a Volume within a container. |
|
|
Container’s working directory. If not specified, the container runtime’s default will be used, which might be configured in the container image. Cannot be updated. |
List of environment variables to set in the container. Cannot be updated.
array
EnvVar represents an environment variable present in a Container.
object
name
Property | Type | Description |
---|---|---|
|
|
Name of the environment variable. Must be a C_IDENTIFIER. |
|
|
Variable references $(VAR_NAME) are expanded using the previously defined environment variables in the container and any service environment variables. If a variable cannot be resolved, the reference in the input string will be unchanged. Double are reduced to a single $, which allows for escaping the $(VAR_NAME) syntax: i.e. "(VAR_NAME)" will produce the string literal "$(VAR_NAME)". Escaped references will never be expanded, regardless of whether the variable exists or not. Defaults to "". |
|
|
EnvVarSource represents a source for the value of an EnvVar. |
EnvVarSource represents a source for the value of an EnvVar.
object
Property | Type | Description |
---|---|---|
|
|
Selects a key from a ConfigMap. |
|
|
ObjectFieldSelector selects an APIVersioned field of an object. |
|
|
ResourceFieldSelector represents container resources (cpu, memory) and their output format |
|
|
SecretKeySelector selects a key of a Secret. |
Selects a key from a ConfigMap.
object
key
Property | Type | Description |
---|---|---|
|
|
The key to select. |
|
|
Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names |
|
|
Specify whether the ConfigMap or its key must be defined |
ObjectFieldSelector selects an APIVersioned field of an object.
object
fieldPath
Property | Type | Description |
---|---|---|
|
|
Version of the schema the FieldPath is written in terms of, defaults to "v1". |
|
|
Path of the field to select in the specified API version. |
ResourceFieldSelector represents container resources (cpu, memory) and their output format
object
resource
Property | Type | Description |
---|---|---|
|
|
Container name: required for volumes, optional for env vars |
|
Specifies the output format of the exposed resources, defaults to "1" |
|
|
|
Required: resource to select |
SecretKeySelector selects a key of a Secret.
object
key
Property | Type | Description |
---|---|---|
|
|
The key of the secret to select from. Must be a valid secret key. |
|
|
Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names |
|
|
Specify whether the Secret or its key must be defined |
List of sources to populate environment variables in the container. The keys defined within a source must be a C_IDENTIFIER. All invalid keys will be reported as an event when the container is starting. When a key exists in multiple sources, the value associated with the last source will take precedence. Values defined by an Env with a duplicate key will take precedence. Cannot be updated.
array
EnvFromSource represents the source of a set of ConfigMaps
object
Property | Type | Description |
---|---|---|
|
|
ConfigMapEnvSource selects a ConfigMap to populate the environment variables with. The contents of the target ConfigMap’s Data field will represent the key-value pairs as environment variables. |
|
|
An optional identifier to prepend to each key in the ConfigMap. Must be a C_IDENTIFIER. |
|
|
SecretEnvSource selects a Secret to populate the environment variables with. The contents of the target Secret’s Data field will represent the key-value pairs as environment variables. |
ConfigMapEnvSource selects a ConfigMap to populate the environment variables with.
The contents of the target ConfigMap’s Data field will represent the key-value pairs as environment variables.
object
Property | Type | Description |
---|---|---|
|
|
Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names |
|
|
Specify whether the ConfigMap must be defined |
SecretEnvSource selects a Secret to populate the environment variables with.
The contents of the target Secret’s Data field will represent the key-value pairs as environment variables.
object
Property | Type | Description |
---|---|---|
|
|
Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names |
|
|
Specify whether the Secret must be defined |
Lifecycle describes actions that the management system should take in response to container lifecycle events. For the PostStart and PreStop lifecycle handlers, management of the container blocks until the action is complete, unless the container process fails, in which case the handler is aborted.
object
Property | Type | Description |
---|---|---|
|
|
Handler defines a specific action that should be taken |
|
|
Handler defines a specific action that should be taken |
Handler defines a specific action that should be taken
object
Property | Type | Description |
---|---|---|
|
|
ExecAction describes a "run in container" action. |
|
|
HTTPGetAction describes an action based on HTTP Get requests. |
|
|
TCPSocketAction describes an action based on opening a socket |
ExecAction describes a "run in container" action.
object
Property | Type | Description |
---|---|---|
|
|
Command is the command line to execute inside the container, the working directory for the command is root ('/') in the container’s filesystem. The command is simply exec’d, it is not run inside a shell, so traditional shell instructions ('|', etc) won’t work. To use a shell, you need to explicitly call out to that shell. Exit status of 0 is treated as live/healthy and non-zero is unhealthy. |
HTTPGetAction describes an action based on HTTP Get requests.
object
port
Property | Type | Description |
---|---|---|
|
|
Host name to connect to, defaults to the pod IP. You probably want to set "Host" in httpHeaders instead. |
|
|
Custom headers to set in the request. HTTP allows repeated headers. |
|
|
HTTPHeader describes a custom header to be used in HTTP probes |
|
|
Path to access on the HTTP server. |
|
Name or number of the port to access on the container. Number must be in the range 1 to 65535. Name must be an IANA_SVC_NAME. |
|
|
|
Scheme to use for connecting to the host. Defaults to HTTP. |
Custom headers to set in the request. HTTP allows repeated headers.
array
HTTPHeader describes a custom header to be used in HTTP probes
object
name
value
Property | Type | Description |
---|---|---|
|
|
The header field name |
|
|
The header field value |
TCPSocketAction describes an action based on opening a socket
object
port
Property | Type | Description |
---|---|---|
|
|
Optional: Host name to connect to, defaults to the pod IP. |
|
Number or name of the port to access on the container. Number must be in the range 1 to 65535. Name must be an IANA_SVC_NAME. |
Handler defines a specific action that should be taken
object
Property | Type | Description |
---|---|---|
|
|
ExecAction describes a "run in container" action. |
|
|
HTTPGetAction describes an action based on HTTP Get requests. |
|
|
TCPSocketAction describes an action based on opening a socket |
ExecAction describes a "run in container" action.
object
Property | Type | Description |
---|---|---|
|
|
Command is the command line to execute inside the container, the working directory for the command is root ('/') in the container’s filesystem. The command is simply exec’d, it is not run inside a shell, so traditional shell instructions ('|', etc) won’t work. To use a shell, you need to explicitly call out to that shell. Exit status of 0 is treated as live/healthy and non-zero is unhealthy. |
HTTPGetAction describes an action based on HTTP Get requests.
object
port
Property | Type | Description |
---|---|---|
|
|
Host name to connect to, defaults to the pod IP. You probably want to set "Host" in httpHeaders instead. |
|
|
Custom headers to set in the request. HTTP allows repeated headers. |
|
|
HTTPHeader describes a custom header to be used in HTTP probes |
|
|
Path to access on the HTTP server. |
|
Name or number of the port to access on the container. Number must be in the range 1 to 65535. Name must be an IANA_SVC_NAME. |
|
|
|
Scheme to use for connecting to the host. Defaults to HTTP. |
Custom headers to set in the request. HTTP allows repeated headers.
array
HTTPHeader describes a custom header to be used in HTTP probes
object
name
value
Property | Type | Description |
---|---|---|
|
|
The header field name |
|
|
The header field value |
TCPSocketAction describes an action based on opening a socket
object
port
Property | Type | Description |
---|---|---|
|
|
Optional: Host name to connect to, defaults to the pod IP. |
|
Number or name of the port to access on the container. Number must be in the range 1 to 65535. Name must be an IANA_SVC_NAME. |
Probe describes a health check to be performed against a container to determine whether it is alive or ready to receive traffic.
object
Property | Type | Description |
---|---|---|
|
|
ExecAction describes a "run in container" action. |
|
|
Minimum consecutive failures for the probe to be considered failed after having succeeded. Defaults to 3. Minimum value is 1. |
|
|
HTTPGetAction describes an action based on HTTP Get requests. |
|
|
Number of seconds after the container has started before liveness probes are initiated. More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes |
|
|
How often (in seconds) to perform the probe. Default to 10 seconds. Minimum value is 1. |
|
|
Minimum consecutive successes for the probe to be considered successful after having failed. Defaults to 1. Must be 1 for liveness and startup. Minimum value is 1. |
|
|
TCPSocketAction describes an action based on opening a socket |
|
|
Optional duration in seconds the pod needs to terminate gracefully upon probe failure. 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. If this value is nil, the pod’s terminationGracePeriodSeconds will be used. Otherwise, this value overrides the value provided by the pod spec. Value must be non-negative integer. The value zero indicates stop immediately via the kill signal (no opportunity to shut down). This is a beta field and requires enabling ProbeTerminationGracePeriod feature gate. Minimum value is 1. spec.terminationGracePeriodSeconds is used if unset. |
|
|
Number of seconds after which the probe times out. Defaults to 1 second. Minimum value is 1. More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes |
ExecAction describes a "run in container" action.
object
Property | Type | Description |
---|---|---|
|
|
Command is the command line to execute inside the container, the working directory for the command is root ('/') in the container’s filesystem. The command is simply exec’d, it is not run inside a shell, so traditional shell instructions ('|', etc) won’t work. To use a shell, you need to explicitly call out to that shell. Exit status of 0 is treated as live/healthy and non-zero is unhealthy. |
HTTPGetAction describes an action based on HTTP Get requests.
object
port
Property | Type | Description |
---|---|---|
|
|
Host name to connect to, defaults to the pod IP. You probably want to set "Host" in httpHeaders instead. |
|
|
Custom headers to set in the request. HTTP allows repeated headers. |
|