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Add support for selecting nodes as egress peers
Some FTR things: 1) As an egress peer a user can selector either namespaces, or pods or nodes. In a given rule more than 1 type of selection is not allowed. 2) An empty node selector means it selects all nodes in the cluster. 3) nodes can be referred only from egress rule peers, since we only support northbound use cases. Signed-off-by: Surya Seetharaman <[email protected]>
1 parent b0532b1 commit b0d14b2

6 files changed

+133
-21
lines changed

‎apis/v1alpha1/shared_types.go‎

Lines changed: 10 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -144,7 +144,7 @@ type AdminNetworkPolicyIngressPeer struct {
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Pods *NamespacedPodPeer `json:"pods,omitempty"`
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}
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// AdminNetworkPolicyEgressPeer defines an in-cluster peer to allow traffic to.
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// AdminNetworkPolicyEgressPeer defines a peer to allow traffic to.
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// Exactly one of the selector pointers must be set for a given peer. If a
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// consumer observes none of its fields are set, they must assume an unknown
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// option has been specified and fail closed.
@@ -166,6 +166,15 @@ type AdminNetworkPolicyEgressPeer struct {
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//
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// +optional
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Pods *NamespacedPodPeer `json:"pods,omitempty"`
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// Nodes defines a way to select a set of nodes in
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// in the cluster. This field follows standard label selector
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// semantics; if present but empty, it selects all Nodes.
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//
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// Support: Extended
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//
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// <network-policy-api:experimental>
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// +optional
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Nodes *metav1.LabelSelector `json:"nodes,omitempty"`
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}
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// NamespacedPeer defines a flexible way to select Namespaces in a cluster.

‎apis/v1alpha1/zz_generated.deepcopy.go‎

Lines changed: 5 additions & 0 deletions
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‎config/crd/experimental/policy.networking.k8s.io_adminnetworkpolicies.yaml‎

Lines changed: 54 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -156,11 +156,11 @@ spec:
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is applied. This field must be defined and contain at least
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one item. \n Support: Core"
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items:
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description: AdminNetworkPolicyEgressPeer defines an in-cluster
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peer to allow traffic to. Exactly one of the selector pointers
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must be set for a given peer. If a consumer observes none
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of its fields are set, they must assume an unknown option
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has been specified and fail closed.
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description: AdminNetworkPolicyEgressPeer defines a peer to
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allow traffic to. Exactly one of the selector pointers must
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be set for a given peer. If a consumer observes none of
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its fields are set, they must assume an unknown option has
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been specified and fail closed.
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maxProperties: 1
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minProperties: 1
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properties:
@@ -249,6 +249,55 @@ spec:
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maxItems: 100
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type: array
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type: object
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nodes:
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description: "Nodes defines a way to select a set of nodes
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in in the cluster. This field follows standard label
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selector semantics; if present but empty, it selects
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all Nodes. \n Support: Extended \n <network-policy-api:experimental>"
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properties:
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matchExpressions:
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description: matchExpressions is a list of label selector
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requirements. The requirements are ANDed.
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items:
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description: A label selector requirement is a selector
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that contains values, a key, and an operator that
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relates the key and values.
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properties:
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key:
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description: key is the label key that the selector
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applies to.
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type: string
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operator:
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description: operator represents a key's relationship
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to a set of values. Valid operators are In,
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NotIn, Exists and DoesNotExist.
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type: string
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values:
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description: values is an array of string values.
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If the operator is In or NotIn, the values
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array must be non-empty. If the operator is
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Exists or DoesNotExist, the values array must
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be empty. This array is replaced during a
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strategic merge patch.
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items:
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type: string
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type: array
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required:
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- key
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- operator
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type: object
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type: array
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matchLabels:
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additionalProperties:
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type: string
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description: matchLabels is a map of {key,value} pairs.
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A single {key,value} in the matchLabels map is equivalent
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to an element of matchExpressions, whose key field
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is "key", the operator is "In", and the values array
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contains only "value". The requirements are ANDed.
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type: object
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type: object
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x-kubernetes-map-type: atomic
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pods:
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description: "Pods defines a way to select a set of pods
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in in a set of namespaces. Note that host-networked

‎config/crd/experimental/policy.networking.k8s.io_baselineadminnetworkpolicies.yaml‎

Lines changed: 54 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -148,11 +148,11 @@ spec:
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is applied. This field must be defined and contain at least
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one item. \n Support: Core"
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items:
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description: AdminNetworkPolicyEgressPeer defines an in-cluster
152-
peer to allow traffic to. Exactly one of the selector pointers
153-
must be set for a given peer. If a consumer observes none
154-
of its fields are set, they must assume an unknown option
155-
has been specified and fail closed.
151+
description: AdminNetworkPolicyEgressPeer defines a peer to
152+
allow traffic to. Exactly one of the selector pointers must
153+
be set for a given peer. If a consumer observes none of
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its fields are set, they must assume an unknown option has
155+
been specified and fail closed.
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maxProperties: 1
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minProperties: 1
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properties:
@@ -241,6 +241,55 @@ spec:
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maxItems: 100
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type: array
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type: object
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nodes:
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description: "Nodes defines a way to select a set of nodes
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in in the cluster. This field follows standard label
247+
selector semantics; if present but empty, it selects
248+
all Nodes. \n Support: Extended \n <network-policy-api:experimental>"
249+
properties:
250+
matchExpressions:
251+
description: matchExpressions is a list of label selector
252+
requirements. The requirements are ANDed.
253+
items:
254+
description: A label selector requirement is a selector
255+
that contains values, a key, and an operator that
256+
relates the key and values.
257+
properties:
258+
key:
259+
description: key is the label key that the selector
260+
applies to.
261+
type: string
262+
operator:
263+
description: operator represents a key's relationship
264+
to a set of values. Valid operators are In,
265+
NotIn, Exists and DoesNotExist.
266+
type: string
267+
values:
268+
description: values is an array of string values.
269+
If the operator is In or NotIn, the values
270+
array must be non-empty. If the operator is
271+
Exists or DoesNotExist, the values array must
272+
be empty. This array is replaced during a
273+
strategic merge patch.
274+
items:
275+
type: string
276+
type: array
277+
required:
278+
- key
279+
- operator
280+
type: object
281+
type: array
282+
matchLabels:
283+
additionalProperties:
284+
type: string
285+
description: matchLabels is a map of {key,value} pairs.
286+
A single {key,value} in the matchLabels map is equivalent
287+
to an element of matchExpressions, whose key field
288+
is "key", the operator is "In", and the values array
289+
contains only "value". The requirements are ANDed.
290+
type: object
291+
type: object
292+
x-kubernetes-map-type: atomic
244293
pods:
245294
description: "Pods defines a way to select a set of pods
246295
in in a set of namespaces. Note that host-networked

‎config/crd/standard/policy.networking.k8s.io_adminnetworkpolicies.yaml‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -152,11 +152,11 @@ spec:
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is applied. This field must be defined and contain at least
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one item. \n Support: Core"
154154
items:
155-
description: AdminNetworkPolicyEgressPeer defines an in-cluster
156-
peer to allow traffic to. Exactly one of the selector pointers
157-
must be set for a given peer. If a consumer observes none
158-
of its fields are set, they must assume an unknown option
159-
has been specified and fail closed.
155+
description: AdminNetworkPolicyEgressPeer defines a peer to
156+
allow traffic to. Exactly one of the selector pointers must
157+
be set for a given peer. If a consumer observes none of
158+
its fields are set, they must assume an unknown option has
159+
been specified and fail closed.
160160
maxProperties: 1
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minProperties: 1
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properties:

‎config/crd/standard/policy.networking.k8s.io_baselineadminnetworkpolicies.yaml‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -144,11 +144,11 @@ spec:
144144
is applied. This field must be defined and contain at least
145145
one item. \n Support: Core"
146146
items:
147-
description: AdminNetworkPolicyEgressPeer defines an in-cluster
148-
peer to allow traffic to. Exactly one of the selector pointers
149-
must be set for a given peer. If a consumer observes none
150-
of its fields are set, they must assume an unknown option
151-
has been specified and fail closed.
147+
description: AdminNetworkPolicyEgressPeer defines a peer to
148+
allow traffic to. Exactly one of the selector pointers must
149+
be set for a given peer. If a consumer observes none of
150+
its fields are set, they must assume an unknown option has
151+
been specified and fail closed.
152152
maxProperties: 1
153153
minProperties: 1
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properties:

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