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https://github.com/siderolabs/talos.git
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7795de313a
This extracts etcd configuration and finalized run arguments as resources managed by controllers. The biggest change in terms of UX is that Talos now waits for the etcd configured subnet to be actually available before starting etcd. Previously etcd quickly failed if the requested subnet was not available on the host. Coupled with other fixes (#5951, #5988), this should bring etcd join/promote sequence back into proper shape. I also reverted all temporary measures for discovering etcd endpoints, now etcd join doesn't depend on Kubernetes (once again). Fixes #5889 Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
51 lines
1.5 KiB
Go
51 lines
1.5 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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"fmt"
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"github.com/cosi-project/runtime/pkg/resource"
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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/talos-systems/talos/pkg/machinery/constants"
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"github.com/talos-systems/talos/pkg/machinery/nethelpers"
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"github.com/talos-systems/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.StateList[*k8s.Endpoint](ctx, resources, resource.NewMetadata(k8s.ControlPlaneNamespaceName, k8s.EndpointType, "", resource.VersionUndefined))
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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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iter := safe.IteratorFromList(endpointResources)
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var endpointAddrs k8s.EndpointList
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// merge all endpoints into a single list
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for iter.Next() {
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endpointAddrs = endpointAddrs.Merge(iter.Value())
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}
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if len(endpointAddrs) == 0 {
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return nil, fmt.Errorf("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 := 0; i < len(endpoints); i++ {
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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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