networking

type HTTPIngressPath struct {
	// Path is matched against the path of an incoming request. Currently it can
	// contain characters disallowed from the conventional "path" part of a URL
	// as defined by RFC 3986. Paths must begin with a '/' and must be present
	// when using PathType with value "Exact" or "Prefix".
	// +optional
	Path string

	// PathType determines the interpretation of the Path matching. PathType can
	// be one of Exact, Prefix, or ImplementationSpecific. Implementations are
	// required to support all path types.
	// +optional
	PathType *PathType

	// Backend defines the referenced service endpoint to which the traffic
	// will be forwarded to.
	Backend IngressBackend
}

type HTTPIngressRuleValue struct {
	// A collection of paths that map requests to backends.
	// +listType=atomic
	Paths []HTTPIngressPath
}

type IPBlock struct {
	// CIDR is a string representing the IP Block
	// Valid examples are "192.168.1.1/24" or "2001:db9::/64"
	CIDR string
	// Except is a slice of CIDRs that should not be included within an IP Block
	// Valid examples are "192.168.1.1/24" or "2001:db9::/64"
	// Except values will be rejected if they are outside the CIDR range
	// +optional
	Except []string
}

type Ingress struct {
	metav1.TypeMeta
	// Standard object's metadata.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
	// +optional
	metav1.ObjectMeta

	// Spec is the desired state of the Ingress.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
	// +optional
	Spec IngressSpec

	// Status is the current state of the Ingress.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
	// +optional
	Status IngressStatus
}

type IngressBackend struct {
	// Service references a Service as a Backend.
	// This is a mutually exclusive setting with "Resource".
	// +optional
	Service *IngressServiceBackend

	// Resource is an ObjectRef to another Kubernetes resource in the namespace
	// of the Ingress object. If resource is specified, a service.Name and
	// service.Port must not be specified.
	// This is a mutually exclusive setting with "Service".
	// +optional
	Resource *api.TypedLocalObjectReference
}

type IngressClass struct {
	metav1.TypeMeta
	metav1.ObjectMeta

	// Spec is the desired state of the IngressClass.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
	// +optional
	Spec IngressClassSpec
}

type IngressClassList struct {
	metav1.TypeMeta
	// Standard object's metadata.
	// +optional
	metav1.ListMeta

	// Items is the list of IngressClasses.
	Items []IngressClass
}

type IngressClassParametersReference struct {
	// APIGroup is the group for the resource being referenced. If APIGroup is
	// not specified, the specified Kind must be in the core API group. For any
	// other third-party types, APIGroup is required.
	// +optional
	APIGroup *string
	// Kind is the type of resource being referenced.
	Kind string
	// Name is the name of resource being referenced.
	Name string
	// Scope represents if this refers to a cluster or namespace scoped resource.
	// This may be set to "Cluster" (default) or "Namespace".
	// Field can be enabled with IngressClassNamespacedParams feature gate.
	// +optional
	// +featureGate=IngressClassNamespacedParams
	Scope *string
	// Namespace is the namespace of the resource being referenced. This field is
	// required when scope is set to "Namespace" and must be unset when scope is set to
	// "Cluster".
	// +optional
	// +featureGate=IngressClassNamespacedParams
	Namespace *string
}

type IngressClassSpec struct {
	// Controller refers to the name of the controller that should handle this
	// class. This allows for different "flavors" that are controlled by the
	// same controller. For example, you may have different Parameters for the
	// same implementing controller. This should be specified as a
	// domain-prefixed path no more than 250 characters in length, e.g.
	// "acme.io/ingress-controller". This field is immutable.
	Controller string

	// Parameters is a link to a custom resource containing additional
	// configuration for the controller. This is optional if the controller does
	// not require extra parameters.
	// +optional
	Parameters *IngressClassParametersReference
}

type IngressList struct {
	metav1.TypeMeta
	// Standard object's metadata.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
	// +optional
	metav1.ListMeta

	// Items is the list of Ingress.
	Items []Ingress
}

type IngressRule struct {
	// Host is the fully qualified domain name of a network host, as defined by RFC 3986.
	// Note the following deviations from the "host" part of the
	// URI as defined in RFC 3986:
	// 1. IPs are not allowed. Currently an IngressRuleValue can only apply to
	//    the IP in the Spec of the parent Ingress.
	// 2. The `:` delimiter is not respected because ports are not allowed.
	//	  Currently the port of an Ingress is implicitly :80 for http and
	//	  :443 for https.
	// Both these may change in the future.
	// Incoming requests are matched against the host before the
	// IngressRuleValue. If the host is unspecified, the Ingress routes all
	// traffic based on the specified IngressRuleValue.
	//
	// Host can be "precise" which is a domain name without the terminating dot of
	// a network host (e.g. "foo.bar.com") or "wildcard", which is a domain name
	// prefixed with a single wildcard label (e.g. "*.foo.com").
	// The wildcard character '*' must appear by itself as the first DNS label and
	// matches only a single label. You cannot have a wildcard label by itself (e.g. Host == "*").
	// Requests will be matched against the Host field in the following way:
	// 1. If Host is precise, the request matches this rule if the http host header is equal to Host.
	// 2. If Host is a wildcard, then the request matches this rule if the http host header
	// is to equal to the suffix (removing the first label) of the wildcard rule.
	// +optional
	Host string
	// IngressRuleValue represents a rule to route requests for this
	// IngressRule. If unspecified, the rule defaults to a http catch-all.
	// Whether that sends just traffic matching the host to the default backend
	// or all traffic to the default backend, is left to the controller
	// fulfilling the Ingress. Http is currently the only supported
	// IngressRuleValue.
	// +optional
	IngressRuleValue
}

type IngressRuleValue struct {

	// +optional
	HTTP *HTTPIngressRuleValue
}

type IngressServiceBackend struct {
	// Name is the referenced service. The service must exist in
	// the same namespace as the Ingress object.
	Name string

	// Port of the referenced service. A port name or port number
	// is required for a IngressServiceBackend.
	Port ServiceBackendPort
}

type IngressSpec struct {
	// IngressClassName is the name of the IngressClass cluster resource. The
	// associated IngressClass defines which controller will implement the
	// resource. This replaces the deprecated `kubernetes.io/ingress.class`
	// annotation. For backwards compatibility, when that annotation is set, it
	// must be given precedence over this field. The controller may emit a
	// warning if the field and annotation have different values.
	// Implementations of this API should ignore Ingresses without a class
	// specified. An IngressClass resource may be marked as default, which can
	// be used to set a default value for this field. For more information,
	// refer to the IngressClass documentation.
	// +optional
	IngressClassName *string

	// DefaultBackend is the backend that should handle requests that don't
	// match any rule. If Rules are not specified, DefaultBackend must be specified.
	// If DefaultBackend is not set, the handling of requests that do not match any
	// of the rules will be up to the Ingress controller.
	// +optional
	DefaultBackend *IngressBackend

	// TLS configuration. Currently the Ingress only supports a single TLS
	// port, 443. If multiple members of this list specify different hosts, they
	// will be multiplexed on the same port according to the hostname specified
	// through the SNI TLS extension, if the ingress controller fulfilling the
	// ingress supports SNI.
	// +listType=atomic
	// +optional
	TLS []IngressTLS

	// A list of host rules used to configure the Ingress. If unspecified, or
	// no rule matches, all traffic is sent to the default backend.
	// +listType=atomic
	// +optional
	Rules []IngressRule
}

type IngressStatus struct {
	// LoadBalancer contains the current status of the load-balancer.
	// +optional
	LoadBalancer api.LoadBalancerStatus
}

type IngressTLS struct {
	// Hosts are a list of hosts included in the TLS certificate. The values in
	// this list must match the name/s used in the tlsSecret. Defaults to the
	// wildcard host setting for the loadbalancer controller fulfilling this
	// Ingress, if left unspecified.
	// +listType=atomic
	// +optional
	Hosts []string
	// SecretName is the name of the secret used to terminate TLS traffic on
	// port 443. Field is left optional to allow TLS routing based on SNI
	// hostname alone. If the SNI host in a listener conflicts with the "Host"
	// header field used by an IngressRule, the SNI host is used for termination
	// and value of the Host header is used for routing.
	// +optional
	SecretName string
}

type NetworkPolicy struct {
	metav1.TypeMeta
	// +optional
	metav1.ObjectMeta

	// Specification of the desired behavior for this NetworkPolicy.
	// +optional
	Spec NetworkPolicySpec
}

type NetworkPolicyEgressRule struct {
	// List of destination ports for outgoing traffic.
	// Each item in this list is combined using a logical OR. If this field is
	// empty or missing, this rule matches all ports (traffic not restricted by port).
	// If this field is present and contains at least one item, then this rule allows
	// traffic only if the traffic matches at least one port in the list.
	// +optional
	Ports []NetworkPolicyPort

	// List of destinations for outgoing traffic of pods selected for this rule.
	// Items in this list are combined using a logical OR operation. If this field is
	// empty or missing, this rule matches all destinations (traffic not restricted by
	// destination). If this field is present and contains at least one item, this rule
	// allows traffic only if the traffic matches at least one item in the to list.
	// +optional
	To []NetworkPolicyPeer
}

type NetworkPolicyIngressRule struct {
	// List of ports which should be made accessible on the pods selected for this
	// rule. Each item in this list is combined using a logical OR. If this field is
	// empty or missing, this rule matches all ports (traffic not restricted by port).
	// If this field is present and contains at least one item, then this rule allows
	// traffic only if the traffic matches at least one port in the list.
	// +optional
	Ports []NetworkPolicyPort

	// List of sources which should be able to access the pods selected for this rule.
	// Items in this list are combined using a logical OR operation. If this field is
	// empty or missing, this rule matches all sources (traffic not restricted by
	// source). If this field is present and contains at least one item, this rule
	// allows traffic only if the traffic matches at least one item in the from list.
	// +optional
	From []NetworkPolicyPeer
}

type NetworkPolicyList struct {
	metav1.TypeMeta
	// +optional
	metav1.ListMeta

	Items []NetworkPolicy
}

type NetworkPolicyPeer struct {
	// This is a label selector which selects Pods. This field follows standard label
	// selector semantics; if present but empty, it selects all pods.
	//
	// If NamespaceSelector is also set, then the NetworkPolicyPeer as a whole selects
	// the Pods matching PodSelector in the Namespaces selected by NamespaceSelector.
	// Otherwise it selects the Pods matching PodSelector in the policy's own Namespace.
	// +optional
	PodSelector *metav1.LabelSelector

	// Selects Namespaces using cluster-scoped labels. This field follows standard label
	// selector semantics; if present but empty, it selects all namespaces.
	//
	// If PodSelector is also set, then the NetworkPolicyPeer as a whole selects
	// the Pods matching PodSelector in the Namespaces selected by NamespaceSelector.
	// Otherwise it selects all Pods in the Namespaces selected by NamespaceSelector.
	// +optional
	NamespaceSelector *metav1.LabelSelector

	// IPBlock defines policy on a particular IPBlock. If this field is set then
	// neither of the other fields can be.
	// +optional
	IPBlock *IPBlock
}

type NetworkPolicyPort struct {
	// The protocol (TCP, UDP, or SCTP) which traffic must match. If not specified, this
	// field defaults to TCP.
	// +optional
	Protocol *api.Protocol

	// The port on the given protocol. This can either be a numerical or named
	// port on a pod. If this field is not provided, this matches all port names and
	// numbers.
	// If present, only traffic on the specified protocol AND port will be matched.
	// +optional
	Port *intstr.IntOrString

	// If set, indicates that the range of ports from port to endPort, inclusive,
	// should be allowed by the policy. This field cannot be defined if the port field
	// is not defined or if the port field is defined as a named (string) port.
	// The endPort must be equal or greater than port.
	// This feature is in Alpha state and should be enabled using the Feature Gate
	// "NetworkPolicyEndPort".
	// +optional
	EndPort *int32
}

type NetworkPolicySpec struct {
	// Selects the pods to which this NetworkPolicy object applies. The array of
	// ingress rules is applied to any pods selected by this field. Multiple network
	// policies can select the same set of pods. In this case, the ingress rules for
	// each are combined additively. This field is NOT optional and follows standard
	// label selector semantics. An empty podSelector matches all pods in this
	// namespace.
	PodSelector metav1.LabelSelector

	// List of ingress rules to be applied to the selected pods. Traffic is allowed to
	// a pod if there are no NetworkPolicies selecting the pod
	// (and cluster policy otherwise allows the traffic), OR if the traffic source is
	// the pod's local node, OR if the traffic matches at least one ingress rule
	// across all of the NetworkPolicy objects whose podSelector matches the pod. If
	// this field is empty then this NetworkPolicy does not allow any traffic (and serves
	// solely to ensure that the pods it selects are isolated by default)
	// +optional
	Ingress []NetworkPolicyIngressRule

	// List of egress rules to be applied to the selected pods. Outgoing traffic is
	// allowed if there are no NetworkPolicies selecting the pod (and cluster policy
	// otherwise allows the traffic), OR if the traffic matches at least one egress rule
	// across all of the NetworkPolicy objects whose podSelector matches the pod. If
	// this field is empty then this NetworkPolicy limits all outgoing traffic (and serves
	// solely to ensure that the pods it selects are isolated by default).
	// This field is beta-level in 1.8
	// +optional
	Egress []NetworkPolicyEgressRule

	// List of rule types that the NetworkPolicy relates to.
	// Valid options are ["Ingress"], ["Egress"], or ["Ingress", "Egress"].
	// If this field is not specified, it will default based on the existence of Ingress or Egress rules;
	// policies that contain an Egress section are assumed to affect Egress, and all policies
	// (whether or not they contain an Ingress section) are assumed to affect Ingress.
	// If you want to write an egress-only policy, you must explicitly specify policyTypes [ "Egress" ].
	// Likewise, if you want to write a policy that specifies that no egress is allowed,
	// you must specify a policyTypes value that include "Egress" (since such a policy would not include
	// an Egress section and would otherwise default to just [ "Ingress" ]).
	// This field is beta-level in 1.8
	// +optional
	PolicyTypes []PolicyType
}

type PathType string

type PolicyType string

type ServiceBackendPort struct {
	// Name is the name of the port on the Service.
	// This must be an IANA_SVC_NAME (following RFC6335).
	// This is a mutually exclusive setting with "Number".
	// +optional
	Name string

	// Number is the numerical port number (e.g. 80) on the Service.
	// This is a mutually exclusive setting with "Name".
	// +optional
	Number int32
}