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discovery.go
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discovery.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package check
import (
"fmt"
"net/netip"
"github.com/siderolabs/gen/maps"
"github.com/siderolabs/gen/xslices"
"github.com/siderolabs/talos/pkg/cluster"
"github.com/siderolabs/talos/pkg/machinery/config/machine"
clussterres "github.com/siderolabs/talos/pkg/machinery/resources/cluster"
)
// DiscoveredClusterInfo represents a cluster.Info populated using the discovery service.
type DiscoveredClusterInfo struct {
nodes []cluster.NodeInfo
nodesByType map[machine.Type][]cluster.NodeInfo
}
// Nodes returns list of all node infos.
func (d *DiscoveredClusterInfo) Nodes() []cluster.NodeInfo {
return d.nodes
}
// NodesByType return list of node endpoints by type.
func (d *DiscoveredClusterInfo) NodesByType(m machine.Type) []cluster.NodeInfo {
return d.nodesByType[m]
}
// NewDiscoveredClusterInfo returns a new cluster.Info populated from the discovery service.
func NewDiscoveredClusterInfo(members []*clussterres.Member) (cluster.Info, error) {
m, err := membersToNodeInfoMap(members)
if err != nil {
return nil, err
}
nodes := xslices.FlatMap(maps.Values(m), func(t []cluster.NodeInfo) []cluster.NodeInfo { return t })
return &DiscoveredClusterInfo{
nodes: nodes,
nodesByType: m,
}, nil
}
func membersToNodeInfoMap(members []*clussterres.Member) (map[machine.Type][]cluster.NodeInfo, error) {
result := make(map[machine.Type][]cluster.NodeInfo)
for _, member := range members {
spec := member.TypedSpec()
machineType := spec.MachineType
nodeInfo, err := memberToNodeInfo(member)
if err != nil {
return nil, err
}
result[machineType] = append(result[machineType], nodeInfo)
}
return result, nil
}
func memberToNodeInfo(member *clussterres.Member) (cluster.NodeInfo, error) {
ips, err := stringsToNetipAddrs(xslices.Map(member.TypedSpec().Addresses, func(ip netip.Addr) string {
return ip.String()
}))
if err != nil {
return cluster.NodeInfo{}, err
}
if len(ips) == 0 {
return cluster.NodeInfo{}, fmt.Errorf("no IP address found for member: %s", member.Metadata().ID())
}
return cluster.NodeInfo{
InternalIP: ips[0],
IPs: ips,
}, nil
}
func stringsToNetipAddrs(ips []string) ([]netip.Addr, error) {
result := make([]netip.Addr, 0, len(ips))
for _, ip := range ips {
parsed, err := netip.ParseAddr(ip)
if err != nil {
return nil, err
}
result = append(result, parsed)
}
return result, nil
}