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40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
/*
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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.1 and Apache-2.0)
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*/
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/*
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* Modified by ScyllaDB
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* Copyright (C) 2021-present ScyllaDB
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*/
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#pragma once
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#include "locator/production_snitch_base.hh"
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#include "utils/exponential_backoff_retry.hh"
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namespace locator {
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class azure_snitch : public production_snitch_base {
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public:
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static constexpr auto AZURE_SERVER_ADDR = "169.254.169.254";
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static constexpr auto AZURE_QUERY_PATH_TEMPLATE = "/metadata/instance/compute/{}?api-version=2020-09-01&format=text";
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static constexpr int AZURE_API_CALL_RETRIES = 10;
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static const std::string REGION_NAME_QUERY_PATH;
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static const std::string ZONE_NAME_QUERY_PATH;
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explicit azure_snitch(const snitch_config&);
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virtual future<> start() override;
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virtual sstring get_name() const override {
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return "org.apache.cassandra.locator.AzureSnitch";
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}
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protected:
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future<> load_config();
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future<sstring> azure_api_call(sstring path);
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future<sstring> read_property_file();
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private:
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exponential_backoff_retry _azure_api_retry = exponential_backoff_retry(std::chrono::seconds(5), std::chrono::seconds(2560));
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future<sstring> azure_api_call_once(sstring path);
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};
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} // namespace locator
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