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Use default address family when adding kubernetes service address to SAN list

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Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
This commit is contained in:
Brad Davidson 2023-01-30 21:05:07 +00:00 committed by Brad Davidson
parent a92f163c9d
commit 32d62c5786
2 changed files with 17 additions and 5 deletions
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9
pkg/cli/server/server.go
View File

@ -204,18 +204,17 @@ func run(app *cli.Context, cfg *cmds.Server, leaderControllers server.CustomCont
}
if serverConfig.ControlConfig.PrivateIP == "" && len(cmds.AgentConfig.NodeIP) != 0 {
// ignoring the error here is fine since etcd will fall back to the interface's IPv4 address
serverConfig.ControlConfig.PrivateIP, _, _ = util.GetFirstString(cmds.AgentConfig.NodeIP)
serverConfig.ControlConfig.PrivateIP = util.GetFirstValidIPString(cmds.AgentConfig.NodeIP)
}
// if not set, try setting advertise-ip from agent node-external-ip
if serverConfig.ControlConfig.AdvertiseIP == "" && len(cmds.AgentConfig.NodeExternalIP) != 0 {
serverConfig.ControlConfig.AdvertiseIP, _, _ = util.GetFirstString(cmds.AgentConfig.NodeExternalIP)
serverConfig.ControlConfig.AdvertiseIP = util.GetFirstValidIPString(cmds.AgentConfig.NodeExternalIP)
}
// if not set, try setting advertise-ip from agent node-ip
if serverConfig.ControlConfig.AdvertiseIP == "" && len(cmds.AgentConfig.NodeIP) != 0 {
serverConfig.ControlConfig.AdvertiseIP, _, _ = util.GetFirstString(cmds.AgentConfig.NodeIP)
serverConfig.ControlConfig.AdvertiseIP = util.GetFirstValidIPString(cmds.AgentConfig.NodeIP)
}
// if we ended up with any advertise-ips, ensure they're added to the SAN list;
@ -297,7 +296,7 @@ func run(app *cli.Context, cfg *cmds.Server, leaderControllers server.CustomCont
}
// the apiserver service does not yet support dual-stack operation
_, apiServerServiceIP, err := controlplane.ServiceIPRange(*serverConfig.ControlConfig.ServiceIPRange)
_, apiServerServiceIP, err := controlplane.ServiceIPRange(*serverConfig.ControlConfig.ServiceIPRanges[0])
if err != nil {
return err
}

13
pkg/util/net.go
View File

@ -189,6 +189,19 @@ func ParseStringSliceToIPs(s cli.StringSlice) ([]net.IP, error) {
return ips, nil
}
// GetFirstValidIPString returns the first valid address from a list of IP address strings,
// without preference for IP family. If no address are found, an empty string is returned.
func GetFirstValidIPString(s cli.StringSlice) string {
for _, unparsedIP := range s {
for _, v := range strings.Split(unparsedIP, ",") {
if ip := net.ParseIP(v); ip != nil {
return v
}
}
}
return ""
}
// GetFirstIP returns the first IPv4 address from the list of IP addresses.
// If no IPv4 addresses are found, returns the first IPv6 address
// if neither of IPv4 or IPv6 are found an error is raised.