embed: only override default advertised client URL if the client listen URL is 0.0.0.0 #7027
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| return "", err | ||
| } | ||
| if ip == "0.0.0.0" { | ||
| cfg.APUrls[0] = url.URL{Scheme: cfg.APUrls[0].Scheme, Host: fmt.Sprintf("%s:%s", h, port)} |
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This function is misleading now; usually Is functions are idempotent. Here, cfg.IsDefaultHost() won't necessarily return the same value on subsequent calls. Probably should just have a separate function do to the advertise IP override.
| return defaultHostname, defaultHostStatus | ||
| func (cfg *Config) IsDefaultHost() (string, error) { | ||
| h, herr := netutil.GetDefaultHost() | ||
| if len(cfg.APUrls) == 1 { |
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The 0.0.0.0 check should be on the listen url. If 0.0.0.0, then the advertise urls need to be checked if they match the default url before overriding.
gyuho
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| } | ||
| return "", defaultHostStatus | ||
| return false |
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this changes the meaning of the function though? This function was meant to say whether it's using the default hosts / user didn't specify, but now it's returning true if it's overriding the hosts.
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You are right. How about NeedDefaultHost(), which means it returns true if it needs to detect machine's default host?
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I don't think that will work-- IsDefaultHost means that it's using defaults (which may be overridden with the default route IP), not that it's using the default route IP. That will change the meaning of the InitialClusterFromName path, which needs to know whether the user set a host explicitly.
| cfg.InitialCluster = cfg.InitialClusterFromName(cfg.Name) | ||
| needDefaultHost := cfg.IsDefaultHost() | ||
| if (needDefaultHost || cfg.Name != embed.DefaultName) && cfg.InitialCluster == defaultInitialCluster { | ||
| defaultHost, dhErr := netutil.GetDefaultHost() |
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this overriding stuff should be a function in embed.Config so it can be reused elsewhere
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| @@ -89,6 +89,11 @@ func startEtcdOrProxyV2() { | |||
| defaultHostOverride := defaultHost == "" || defaultHostErr == nil | |||
| if (defaultHostOverride || cfg.Name != embed.DefaultName) && cfg.InitialCluster == defaultInitialCluster { | |||
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this path needs a lot of special support from Config and seems self-contained, can everything starting from IsDefaultHost() to the end of this if be func (cfg *Config) UpdateDefaultClusterFromName() instead?
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@heyitsanthony Just moved them all to embed.UpdateDefaultClusterFromName. PTAL. Thanks.
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| @@ -356,6 +356,32 @@ func (cfg Config) IsDefaultHost() (string, error) { | |||
| return "", defaultHostStatus | |||
| } | |||
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| // UpdateDefaultClusterFromName updates cluster advertise URLs with default host. | |||
| // TODO: check whether fields are set instead of whether fields have default value | |||
| func UpdateDefaultClusterFromName(cfg *Config, defaultInitialCluster string) { | |||
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func (cfg *Config) UpdateDefaultClusterFromName(defaultCluster string)?
| } | ||
| } | ||
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| func isDefaultRoute(host string) bool { |
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can probably inline this instead of a separate function?
| return ip == "0.0.0.0" | ||
| } | ||
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| func (cfg *Config) updateACURLHost(host string) { |
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lgtm after fixing minor nits |
…en URL is 0.0.0.0
Fix etcd-io#7348. etcd-io#7027 broke this. It overwriting the advertise-client-urls' host with 'localhost'. Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
Fix #7009.