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Do not bootstrap etcd-only nodes from existing supervisor

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Changes to how we bootstrap the agent and apiserver address list have
made this unnecessary since 5014c9e was merged, and it is creating
problems due to only etcd-only nodes not using their own config.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
This commit is contained in:
Brad Davidson
2025-08-13 18:27:21 +00:00
committed by Brad Davidson
parent 0254ca3f14
commit 0ec47408e9
1 changed files with 8 additions and 13 deletions
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21
pkg/cli/server/server.go
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@@ -541,19 +541,14 @@ func run(app *cli.Context, cfg *cmds.Server, leaderControllers server.CustomCont
}
if serverConfig.ControlConfig.DisableAPIServer {
if cfg.ServerURL == "" {
// If this node is the initial member of the cluster and is not hosting an apiserver,
// always bootstrap the agent off local supervisor, and go through the process of reading
// apiserver endpoints from etcd and blocking further startup until one is available.
// This ensures that we don't end up in a chicken-and-egg situation on cluster restarts,
// where the loadbalancer is routing traffic to existing apiservers, but the apiservers
// are non-functional because they're waiting for us to start etcd.
loadbalancer.ResetLoadBalancer(filepath.Join(agentConfig.DataDir, "agent"), loadbalancer.SupervisorServiceName)
} else {
// If this is a secondary member of the cluster and is not hosting an apiserver,
// bootstrap the agent off the existing supervisor, instead of bootstrapping locally.
agentConfig.ServerURL = cfg.ServerURL
}
// If this node is not hosting an apiserver, always bootstrap the agent off the local
// supervisor, and go through the process of reading apiserver endpoints from etcd and
// blocking further startup until one is available. This ensures that we don't end up in
// a chicken-and-egg situation on cluster restarts, where the loadbalancer is routing
// traffic to existing apiservers, but the apiservers are non-functional because they're
// waiting for us to start etcd.
loadbalancer.ResetLoadBalancer(filepath.Join(agentConfig.DataDir, "agent"), loadbalancer.SupervisorServiceName)
// initialize the apiAddress Channel for receiving the api address from etcd
agentConfig.APIAddressCh = make(chan []string)
go getAPIAddressFromEtcd(ctx, serverConfig, agentConfig)