forked from rook/rook
Sébastien Han
bce1474f06
We now support reading Network Attachment Definitions with a "static" IPAM. Also added more unit tests. Signed-off-by: Sébastien Han <seb@redhat.com>
119 lines
3.5 KiB
Go
119 lines
3.5 KiB
Go
/*
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Copyright 2019 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package k8sutil
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import (
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"encoding/json"
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"fmt"
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"strings"
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netapi "github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1"
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rookv1 "github.com/rook/rook/pkg/apis/rook.io/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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const (
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// publicNetworkSelectorKeyName is the network selector key for the ceph public network
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publicNetworkSelectorKeyName = "public"
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)
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// NetworkAttachmentConfig represents the configuration of the NetworkAttachmentDefinitions object
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type NetworkAttachmentConfig struct {
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CniVersion string `json:"cniVersion,omitempty"`
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Type string `json:"type,omitempty"`
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Master string `json:"master,omitempty"`
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Mode string `json:"mode,omitempty"`
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Ipam struct {
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Type string `json:"type,omitempty"`
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Subnet string `json:"subnet,omitempty"`
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Addresses []struct {
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Address string `json:"address,omitempty"`
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Gateway string `json:"gateway,omitempty"`
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} `json:"addresses,omitempty"`
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Ranges [][]struct {
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Subnet string `json:"subnet,omitempty"`
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RangeStart string `json:"rangeStart,omitempty"`
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RangeEnd string `json:"rangeEnd,omitempty"`
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Gateway string `json:"gateway,omitempty"`
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} `json:"ranges,omitempty"`
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Range string `json:"range,omitempty"`
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RangeStart string `json:"rangeStart,omitempty"`
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RangeEnd string `json:"rangeEnd,omitempty"`
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Routes []struct {
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Dst string `json:"dst,omitempty"`
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} `json:"routes,omitempty"`
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Gateway string `json:"gateway,omitempty"`
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} `json:"ipam,omitempty"`
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}
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// ApplyMultus apply multus selector to Pods
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// Multus supports short and json syntax, use only one kind at a time.
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func ApplyMultus(net rookv1.NetworkSpec, objectMeta *metav1.ObjectMeta) error {
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v := make([]string, 0, 2)
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shortSyntax := false
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jsonSyntax := false
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for k, ns := range net.Selectors {
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var multusMap map[string]string
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err := json.Unmarshal([]byte(ns), &multusMap)
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if err == nil {
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jsonSyntax = true
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} else {
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shortSyntax = true
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}
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isCsi := strings.Contains(objectMeta.Labels["app"], "csi-")
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if isCsi {
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if k == publicNetworkSelectorKeyName {
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v = append(v, string(ns))
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}
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} else {
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v = append(v, string(ns))
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}
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}
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if shortSyntax && jsonSyntax {
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return fmt.Errorf("ApplyMultus: Can't mix short and JSON form")
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}
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networks := strings.Join(v, ", ")
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if jsonSyntax {
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networks = "[" + networks + "]"
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}
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t := rookv1.Annotations{
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"k8s.v1.cni.cncf.io/networks": networks,
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}
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t.ApplyToObjectMeta(objectMeta)
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return nil
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}
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// GetNetworkAttachmentConfig returns the NetworkAttachmentDefinitions configuration
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func GetNetworkAttachmentConfig(n netapi.NetworkAttachmentDefinition) (NetworkAttachmentConfig, error) {
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netConfigJSON := n.Spec.Config
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var netConfig NetworkAttachmentConfig
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err := json.Unmarshal([]byte(netConfigJSON), &netConfig)
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if err != nil {
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return netConfig, fmt.Errorf("failed to unmarshal netconfig json %q. %v", netConfigJSON, err)
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}
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return netConfig, nil
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}
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