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HETZNER: better rate limit handling (#936)

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* HETZNER: better rate limit handling

- Hetzner is using a Proxy service 'kong' which broadcasts it limits
- honor 'Retry-After' of 429 responses
- delay requests per-se: see the amended docs for details

Signed-off-by: Jakob Ackermann <das7pad@outlook.com>

* HETZNER: apply review feedback: store quotaName as lower case

Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>
Signed-off-by: Jakob Ackermann <das7pad@outlook.com>

Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>
This commit is contained in:
Jakob Ackermann
2020-11-16 17:26:52 +00:00
committed by GitHub
parent 18c026d7d9
commit 550fa436ed
4 changed files with 151 additions and 27 deletions
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10
providers/hetzner/hetznerProvider.go
View File

@@ -40,9 +40,19 @@ func New(settings map[string]string, _ json.RawMessage) (providers.DNSServicePro
api.apiKey = settings["api_key"]
if settings["rate_limited"] == "true" {
// backwards compatibility
settings["start_with_default_rate_limit"] = "true"
}
if settings["start_with_default_rate_limit"] == "true" {
api.startRateLimited()
}
quota := settings["optimize_for_rate_limit_quota"]
err := api.requestRateLimiter.setOptimizeForRateLimitQuota(quota)
if err != nil {
return nil, fmt.Errorf("unexpected value for optimize_for_rate_limit_quota: %w", err)
}
return api, nil
}