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96e604874b
Populate endpoint coming from the Kubernetes controlplane endpoint with the hostname (if the endpoint is a hostname). This should improve cases when hostname is used for the endpoint in terms of SNI, proper resolving of DNS if it's dynamic. See https://github.com/siderolabs/talos/pull/12556#issuecomment-3755862314 Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package etcd
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import (
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"context"
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"errors"
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"fmt"
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"github.com/cosi-project/runtime/pkg/safe"
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"github.com/cosi-project/runtime/pkg/state"
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"github.com/siderolabs/talos/pkg/machinery/constants"
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"github.com/siderolabs/talos/pkg/machinery/nethelpers"
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"github.com/siderolabs/talos/pkg/machinery/resources/k8s"
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)
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// GetEndpoints returns expected endpoints of etcd cluster members.
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//
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// It is not guaranteed that etcd is running on each listed endpoint.
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func GetEndpoints(ctx context.Context, resources state.State) ([]string, error) {
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endpointResources, err := safe.StateListAll[*k8s.Endpoint](ctx, resources)
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if err != nil {
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return nil, fmt.Errorf("error getting endpoints resources: %w", err)
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}
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var endpointAddrs k8s.EndpointList
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// merge all endpoints into a single list
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for res := range endpointResources.All() {
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endpointAddrs = endpointAddrs.Merge(res)
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}
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if endpointAddrs.IsEmpty() {
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return nil, errors.New("no controlplane endpoints discovered yet")
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}
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endpoints := endpointAddrs.Strings()
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// Etcd expects host:port format.
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for i := range endpoints {
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endpoints[i] = nethelpers.JoinHostPort(endpoints[i], constants.EtcdClientPort)
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}
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return endpoints, nil
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}
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