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ceph-ceph-17.2.7
3020-patch-out-exporter.patch
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File 3020-patch-out-exporter.patch of Package ceph-ceph-17.2.7
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 776acc8..d9ff880 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -574,7 +574,6 @@ endif(NOT WITH_SYSTEM_ROCKSDB) if(WITH_MGR) add_subdirectory(mgr) - add_subdirectory(exporter) endif() set(librados_config_srcs @@ -884,7 +883,6 @@ endif() if (WITH_MGR) add_dependencies(vstart-base ceph-mgr) - add_dependencies(vstart-base ceph-exporter) endif() add_custom_target(vstart DEPENDS vstart-base) diff --git a/src/common/options/CMakeLists.txt b/src/common/options/CMakeLists.txt index da24c67..d2104a0 100644 --- a/src/common/options/CMakeLists.txt +++ b/src/common/options/CMakeLists.txt @@ -93,7 +93,6 @@ add_options(osd) add_options(rbd) add_options(rbd-mirror) add_options(immutable-object-cache) -add_options(ceph-exporter) # if set to empty string, system default luarocks package location (if exist) will be used set(rgw_luarocks_location "") diff --git a/src/common/options/build_options.cc b/src/common/options/build_options.cc index 867fc2e..001fac9 100644 --- a/src/common/options/build_options.cc +++ b/src/common/options/build_options.cc @@ -18,7 +18,6 @@ std::vector<Option> get_immutable_object_cache_options(); std::vector<Option> get_mds_options(); std::vector<Option> get_mds_client_options(); std::vector<Option> get_cephfs_mirror_options(); -std::vector<Option> get_ceph_exporter_options(); std::vector<Option> build_options() { @@ -47,7 +46,6 @@ std::vector<Option> build_options() ingest(get_mds_options(), "mds"); ingest(get_mds_client_options(), "mds_client"); ingest(get_cephfs_mirror_options(), "cephfs-mirror"); - ingest(get_ceph_exporter_options(), "ceph-exporter"); return result; } diff --git a/src/common/options/ceph-exporter.yaml.in b/src/common/options/ceph-exporter.yaml.in deleted file mode 100644 index 798a185..0000000 --- a/src/common/options/ceph-exporter.yaml.in +++ /dev/null @@ -1,54 +0,0 @@ -# -*- mode: YAML -*- ---- - -options: -- name: exporter_sock_dir - type: str - level: advanced - desc: The path to ceph daemons socket files dir - default: /var/run/ceph/ - services: - - ceph-exporter - flags: - - runtime -- name: exporter_addr - type: str - level: advanced - desc: Host ip address where exporter is deployed - default: 0.0.0.0 - services: - - ceph-exporter -- name: exporter_http_port - type: int - level: advanced - desc: Port to deploy exporter on. Default is 9926 - default: 9926 - services: - - ceph-exporter -- name: exporter_prio_limit - type: int - level: advanced - desc: Only perf counters greater than or equal to exporter_prio_limit are fetched - default: 5 - services: - - ceph-exporter - flags: - - runtime -- name: exporter_stats_period - type: int - level: advanced - desc: Time to wait before sending requests again to exporter server (seconds) - default: 5 - services: - - ceph-exporter - flags: - - runtime -- name: exporter_sort_metrics - type: bool - level: advanced - desc: If true it will sort the metrics and group them. - default: true - services: - - ceph-exporter - flags: - - runtime diff --git a/src/common/subsys.h b/src/common/subsys.h index 97875f0..0667bbd 100644 --- a/src/common/subsys.h +++ b/src/common/subsys.h @@ -95,4 +95,3 @@ SUBSYS(seastore_journal, 0, 5) SUBSYS(seastore_device, 0, 5) SUBSYS(alienstore, 0, 5) SUBSYS(mclock, 1, 5) -SUBSYS(ceph_exporter, 1, 5) \ No newline at end of file diff --git a/src/exporter/CMakeLists.txt b/src/exporter/CMakeLists.txt deleted file mode 100644 index 0c0c03b..0000000 --- a/src/exporter/CMakeLists.txt +++ /dev/null @@ -1,10 +0,0 @@ -set(exporter_srcs - ceph_exporter.cc - DaemonMetricCollector.cc - http_server.cc - util.cc - ) -add_executable(ceph-exporter ${exporter_srcs}) -target_link_libraries(ceph-exporter - global-static ceph-common) -install(TARGETS ceph-exporter DESTINATION bin) diff --git a/src/exporter/DaemonMetricCollector.cc b/src/exporter/DaemonMetricCollector.cc deleted file mode 100644 index a8fef46..0000000 --- a/src/exporter/DaemonMetricCollector.cc +++ /dev/null @@ -1,411 +0,0 @@ -#include "DaemonMetricCollector.h" - -#include <boost/json/src.hpp> -#include <chrono> -#include <filesystem> -#include <iostream> -#include <map> -#include <memory> -#include <regex> -#include <string> -#include <utility> - -#include "common/admin_socket_client.h" -#include "common/debug.h" -#include "common/hostname.h" -#include "common/perf_counters.h" -#include "common/split.h" -#include "global/global_context.h" -#include "global/global_init.h" -#include "include/common_fwd.h" -#include "util.h" - -#define dout_context g_ceph_context -#define dout_subsys ceph_subsys_ceph_exporter - -using json_object = boost::json::object; -using json_value = boost::json::value; -using json_array = boost::json::array; - -void DaemonMetricCollector::request_loop(boost::asio::steady_timer &timer) { - timer.async_wait([&](const boost::system::error_code &e) { - std::cerr << e << std::endl; - update_sockets(); - dump_asok_metrics(); - auto stats_period = g_conf().get_val<int64_t>("exporter_stats_period"); - // time to wait before sending requests again - timer.expires_from_now(std::chrono::seconds(stats_period)); - request_loop(timer); - }); -} - -void DaemonMetricCollector::main() { - // time to wait before sending requests again - - boost::asio::io_service io; - boost::asio::steady_timer timer{io, std::chrono::seconds(0)}; - request_loop(timer); - io.run(); -} - -std::string DaemonMetricCollector::get_metrics() { - const std::lock_guard<std::mutex> lock(metrics_mutex); - return metrics; -} - -template <class T> -void add_metric(std::unique_ptr<MetricsBuilder> &builder, T value, - std::string name, std::string description, std::string mtype, - labels_t labels) { - builder->add(std::to_string(value), name, description, mtype, labels); -} - -void add_double_or_int_metric(std::unique_ptr<MetricsBuilder> &builder, - json_value value, std::string name, - std::string description, std::string mtype, - labels_t labels) { - if (value.is_int64()) { - int64_t v = value.as_int64(); - add_metric(builder, v, name, description, mtype, labels); - } else if (value.is_double()) { - double v = value.as_double(); - add_metric(builder, v, name, description, mtype, labels); - } -} - -std::string boost_string_to_std(boost::json::string js) { - std::string res(js.data()); - return res; -} - -std::string quote(std::string value) { return "\"" + value + "\""; } - -bool is_hyphen(char ch) { return ch == '-'; } - -void DaemonMetricCollector::dump_asok_metrics() { - BlockTimer timer(__FILE__, __FUNCTION__); - - std::vector<std::pair<std::string, int>> daemon_pids; - - int failures = 0; - bool sort = g_conf().get_val<bool>("exporter_sort_metrics"); - if (sort) { - builder = - std::unique_ptr<OrderedMetricsBuilder>(new OrderedMetricsBuilder()); - } else { - builder = - std::unique_ptr<UnorderedMetricsBuilder>(new UnorderedMetricsBuilder()); - } - for (auto &[daemon_name, sock_client] : clients) { - bool ok; - sock_client.ping(&ok); - if (!ok) { - failures++; - continue; - } - std::string perf_dump_response = - asok_request(sock_client, "perf dump", daemon_name); - if (perf_dump_response.size() == 0) { - failures++; - continue; - } - std::string perf_schema_response = - asok_request(sock_client, "perf schema", daemon_name); - if (perf_schema_response.size() == 0) { - failures++; - continue; - } - std::string config_show = - asok_request(sock_client, "config show", daemon_name); - if (config_show.size() == 0) { - failures++; - continue; - } - json_object pid_file_json = boost::json::parse(config_show).as_object(); - std::string pid_path = - boost_string_to_std(pid_file_json["pid_file"].as_string()); - std::string pid_str = read_file_to_string(pid_path); - if (!pid_path.size()) { - dout(1) << "pid path is empty; process metrics won't be fetched for: " - << daemon_name << dendl; - } - if (!pid_str.empty()) { - daemon_pids.push_back({daemon_name, std::stoi(pid_str)}); - } - json_object dump = boost::json::parse(perf_dump_response).as_object(); - json_object schema = boost::json::parse(perf_schema_response).as_object(); - for (auto &perf : schema) { - std::string perf_group = {perf.key().begin(), perf.key().end()}; - json_object perf_group_object = perf.value().as_object(); - for (auto &perf_counter : perf_group_object) { - std::string perf_name = {perf_counter.key().begin(), - perf_counter.key().end()}; - json_object perf_info = perf_counter.value().as_object(); - auto prio_limit = g_conf().get_val<int64_t>("exporter_prio_limit"); - if (perf_info["priority"].as_int64() < prio_limit) { - continue; - } - std::string name = "ceph_" + perf_group + "_" + perf_name; - std::replace_if(name.begin(), name.end(), is_hyphen, '_'); - - // FIXME: test this, based on mgr_module perfpath_to_path_labels - auto labels_and_name = get_labels_and_metric_name(daemon_name, name); - labels_t labels = labels_and_name.first; - name = labels_and_name.second; - - json_value perf_values = dump[perf_group].as_object()[perf_name]; - dump_asok_metric(perf_info, perf_values, name, labels); - } - } - } - dout(10) << "Perf counters retrieved for " << clients.size() - failures << "/" - << clients.size() << " daemons." << dendl; - // get time spent on this function - timer.stop(); - std::string scrap_desc( - "Time spent scraping and transforming perf counters to metrics"); - labels_t scrap_labels; - scrap_labels["host"] = quote(ceph_get_hostname()); - scrap_labels["function"] = quote(__FUNCTION__); - add_metric(builder, timer.get_ms(), "ceph_exporter_scrape_time", scrap_desc, - "gauge", scrap_labels); - - const std::lock_guard<std::mutex> lock(metrics_mutex); - // only get metrics if there's pid path for some or all daemons isn't empty - if (daemon_pids.size() != 0) { - get_process_metrics(daemon_pids); - } - metrics = builder->dump(); -} - -std::vector<std::string> read_proc_stat_file(std::string path) { - std::string stat = read_file_to_string(path); - std::vector<std::string> strings; - auto parts = ceph::split(stat); - strings.assign(parts.begin(), parts.end()); - return strings; -} - -struct pstat read_pid_stat(int pid) { - std::string stat_path("/proc/" + std::to_string(pid) + "/stat"); - std::vector<std::string> stats = read_proc_stat_file(stat_path); - struct pstat stat; - stat.minflt = std::stoul(stats[9]); - stat.majflt = std::stoul(stats[11]); - stat.utime = std::stoul(stats[13]); - stat.stime = std::stoul(stats[14]); - stat.num_threads = std::stoul(stats[19]); - stat.start_time = std::stoul(stats[21]); - stat.vm_size = std::stoul(stats[22]); - stat.resident_size = std::stoi(stats[23]); - return stat; -} - -void DaemonMetricCollector::get_process_metrics( - std::vector<std::pair<std::string, int>> daemon_pids) { - std::string path("/proc"); - std::stringstream ss; - for (auto &[daemon_name, pid] : daemon_pids) { - std::vector<std::string> uptimes = read_proc_stat_file("/proc/uptime"); - struct pstat stat = read_pid_stat(pid); - int clk_tck = sysconf(_SC_CLK_TCK); - double start_time_seconds = stat.start_time / (double)clk_tck; - double user_time = stat.utime / (double)clk_tck; - double kernel_time = stat.stime / (double)clk_tck; - double total_time_seconds = user_time + kernel_time; - double uptime = std::stod(uptimes[0]); - double elapsed_time = uptime - start_time_seconds; - double idle_time = elapsed_time - total_time_seconds; - double usage = total_time_seconds * 100 / elapsed_time; - - labels_t labels; - labels["ceph_daemon"] = quote(daemon_name); - add_metric(builder, stat.minflt, "ceph_exporter_minflt_total", - "Number of minor page faults of daemon", "counter", labels); - add_metric(builder, stat.majflt, "ceph_exporter_majflt_total", - "Number of major page faults of daemon", "counter", labels); - add_metric(builder, stat.num_threads, "ceph_exporter_num_threads", - "Number of threads used by daemon", "gauge", labels); - add_metric(builder, usage, "ceph_exporter_cpu_usage", - "CPU usage of a daemon", "gauge", labels); - - std::string cpu_time_desc = "Process time in kernel/user/idle mode"; - labels_t cpu_total_labels; - cpu_total_labels["ceph_daemon"] = quote(daemon_name); - cpu_total_labels["mode"] = quote("kernel"); - add_metric(builder, kernel_time, "ceph_exporter_cpu_total", cpu_time_desc, - "counter", cpu_total_labels); - cpu_total_labels["mode"] = quote("user"); - add_metric(builder, user_time, "ceph_exporter_cpu_total", cpu_time_desc, - "counter", cpu_total_labels); - cpu_total_labels["mode"] = quote("idle"); - add_metric(builder, idle_time, "ceph_exporter_cpu_total", cpu_time_desc, - "counter", cpu_total_labels); - add_metric(builder, stat.vm_size, "ceph_exporter_vm_size", - "Virtual memory used in a daemon", "gauge", labels); - add_metric(builder, stat.resident_size, "ceph_exporter_resident_size", - "Resident memory in a daemon", "gauge", labels); - } -} - -std::string DaemonMetricCollector::asok_request(AdminSocketClient &asok, - std::string command, - std::string daemon_name) { - std::string request("{\"prefix\": \"" + command + "\"}"); - std::string response; - std::string err = asok.do_request(request, &response); - if (err.length() > 0 || response.substr(0, 5) == "ERROR") { - dout(1) << "command " << command << "failed for daemon " << daemon_name - << "with error: " << err << dendl; - return ""; - } - return response; -} - -std::pair<labels_t, std::string> -DaemonMetricCollector::get_labels_and_metric_name(std::string daemon_name, - std::string metric_name) { - std::string new_metric_name; - labels_t labels; - new_metric_name = metric_name; - if (daemon_name.find("rgw") != std::string::npos) { - std::string tmp = daemon_name.substr(16, std::string::npos); - std::string::size_type pos = tmp.find('.'); - labels["instance_id"] = quote("rgw." + tmp.substr(0, pos)); - } else { - labels["ceph_daemon"] = quote(daemon_name); - if (daemon_name.find("rbd-mirror") != std::string::npos) { - std::regex re( - "^rbd_mirror_image_([^/]+)/(?:(?:([^/]+)/" - ")?)(.*)\\.(replay(?:_bytes|_latency)?)$"); - std::smatch match; - if (std::regex_search(daemon_name, match, re) == true) { - new_metric_name = "ceph_rbd_mirror_image_" + match.str(4); - labels["pool"] = quote(match.str(1)); - labels["namespace"] = quote(match.str(2)); - labels["image"] = quote(match.str(3)); - } - } - } - return {labels, new_metric_name}; -} - -/* -perf_values can be either a int/double or a json_object. Since - json_value is a wrapper of both we use that class. - */ -void DaemonMetricCollector::dump_asok_metric(json_object perf_info, - json_value perf_values, - std::string name, - labels_t labels) { - int64_t type = perf_info["type"].as_int64(); - std::string metric_type = - boost_string_to_std(perf_info["metric_type"].as_string()); - std::string description = - boost_string_to_std(perf_info["description"].as_string()); - - if (type & PERFCOUNTER_LONGRUNAVG) { - int64_t count = perf_values.as_object()["avgcount"].as_int64(); - add_metric(builder, count, name + "_count", description, metric_type, - labels); - json_value sum_value = perf_values.as_object()["sum"]; - add_double_or_int_metric(builder, sum_value, name + "_sum", description, - metric_type, labels); - } else if (type & PERFCOUNTER_TIME) { - if (perf_values.is_int64()) { - double value = perf_values.as_int64() / 1000000000.0f; - add_metric(builder, value, name, description, metric_type, labels); - } else if (perf_values.is_double()) { - double value = perf_values.as_double() / 1000000000.0f; - add_metric(builder, value, name, description, metric_type, labels); - } - } else { - add_double_or_int_metric(builder, perf_values, name, description, - metric_type, labels); - } -} - -void DaemonMetricCollector::update_sockets() { - std::string sock_dir = g_conf().get_val<std::string>("exporter_sock_dir"); - clients.clear(); - std::filesystem::path sock_path = sock_dir; - if (!std::filesystem::is_directory(sock_path.parent_path())) { - dout(1) << "ERROR: No such directory exist" << sock_dir << dendl; - return; - } - for (const auto &entry : std::filesystem::directory_iterator(sock_dir)) { - if (entry.path().extension() == ".asok") { - std::string daemon_socket_name = entry.path().filename().string(); - std::string daemon_name = - daemon_socket_name.substr(0, daemon_socket_name.size() - 5); - if (clients.find(daemon_name) == clients.end() && - !(daemon_name.find("mgr") != std::string::npos) && - !(daemon_name.find("ceph-exporter") != std::string::npos)) { - AdminSocketClient sock(entry.path().string()); - clients.insert({daemon_name, std::move(sock)}); - } - } - } -} - -void OrderedMetricsBuilder::add(std::string value, std::string name, - std::string description, std::string mtype, - labels_t labels) { - if (metrics.find(name) == metrics.end()) { - Metric metric(name, mtype, description); - metrics[name] = std::move(metric); - } - Metric &metric = metrics[name]; - metric.add(labels, value); -} - -std::string OrderedMetricsBuilder::dump() { - for (auto &[name, metric] : metrics) { - out += metric.dump() + "\n"; - } - return out; -} - -void UnorderedMetricsBuilder::add(std::string value, std::string name, - std::string description, std::string mtype, - labels_t labels) { - Metric metric(name, mtype, description); - metric.add(labels, value); - out += metric.dump() + "\n\n"; -} - -std::string UnorderedMetricsBuilder::dump() { return out; } - -void Metric::add(labels_t labels, std::string value) { - metric_entry entry; - entry.labels = labels; - entry.value = value; - entries.push_back(entry); -} - -std::string Metric::dump() { - std::stringstream metric_ss; - metric_ss << "# HELP " << name << " " << description << "\n"; - metric_ss << "# TYPE " << name << " " << mtype << "\n"; - for (auto &entry : entries) { - std::stringstream labels_ss; - size_t i = 0; - for (auto &[label_name, label_value] : entry.labels) { - labels_ss << label_name << "=" << label_value; - if (i < entry.labels.size() - 1) { - labels_ss << ","; - } - i++; - } - metric_ss << name << "{" << labels_ss.str() << "} " << entry.value; - if (&entry != &entries.back()) { - metric_ss << "\n"; - } - } - return metric_ss.str(); -} - -DaemonMetricCollector &collector_instance() { - static DaemonMetricCollector instance; - return instance; -} diff --git a/src/exporter/DaemonMetricCollector.h b/src/exporter/DaemonMetricCollector.h deleted file mode 100644 index c823866..0000000 --- a/src/exporter/DaemonMetricCollector.h +++ /dev/null @@ -1,104 +0,0 @@ -#pragma once - -#include "common/admin_socket_client.h" -#include <map> -#include <string> -#include <vector> - -#include <boost/asio.hpp> -#include <boost/json/object.hpp> -#include <filesystem> -#include <map> -#include <string> -#include <vector> - -struct pstat { - unsigned long utime; - unsigned long stime; - unsigned long minflt; - unsigned long majflt; - unsigned long start_time; - int num_threads; - unsigned long vm_size; - int resident_size; -}; - -class MetricsBuilder; -class OrderedMetricsBuilder; -class UnorderedMetricsBuilder; -class Metric; - -typedef std::map<std::string, std::string> labels_t; - -class DaemonMetricCollector { -public: - void main(); - std::string get_metrics(); - -private: - std::map<std::string, AdminSocketClient> clients; - std::string metrics; - std::mutex metrics_mutex; - std::unique_ptr<MetricsBuilder> builder; - void update_sockets(); - void request_loop(boost::asio::steady_timer &timer); - - void dump_asok_metrics(); - void dump_asok_metric(boost::json::object perf_info, - boost::json::value perf_values, std::string name, - labels_t labels); - std::pair<labels_t, std::string> - get_labels_and_metric_name(std::string daemon_name, std::string metric_name); - void get_process_metrics(std::vector<std::pair<std::string, int>> daemon_pids); - std::string asok_request(AdminSocketClient &asok, std::string command, std::string daemon_name); -}; - -class Metric { -private: - struct metric_entry { - labels_t labels; - std::string value; - }; - std::string name; - std::string mtype; - std::string description; - std::vector<metric_entry> entries; - -public: - Metric(std::string name, std::string mtype, std::string description) - : name(name), mtype(mtype), description(description) {} - Metric(const Metric &) = default; - Metric() = default; - void add(labels_t labels, std::string value); - std::string dump(); -}; - -class MetricsBuilder { -public: - virtual ~MetricsBuilder() = default; - virtual std::string dump() = 0; - virtual void add(std::string value, std::string name, std::string description, - std::string mtype, labels_t labels) = 0; - -protected: - std::string out; -}; - -class OrderedMetricsBuilder : public MetricsBuilder { -private: - std::map<std::string, Metric> metrics; - -public: - std::string dump(); - void add(std::string value, std::string name, std::string description, - std::string mtype, labels_t labels); -}; - -class UnorderedMetricsBuilder : public MetricsBuilder { -public: - std::string dump(); - void add(std::string value, std::string name, std::string description, - std::string mtype, labels_t labels); -}; - -DaemonMetricCollector &collector_instance(); diff --git a/src/exporter/ceph_exporter.cc b/src/exporter/ceph_exporter.cc deleted file mode 100644 index 70650ff..0000000 --- a/src/exporter/ceph_exporter.cc +++ /dev/null @@ -1,65 +0,0 @@ -#include "common/ceph_argparse.h" -#include "common/config.h" -#include "exporter/DaemonMetricCollector.h" -#include "exporter/http_server.h" -#include "global/global_init.h" -#include "global/global_context.h" - -#include <boost/thread/thread.hpp> -#include <iostream> -#include <map> -#include <string> - -#define dout_context g_ceph_context - -static void usage() { - std::cout << "usage: ceph-exporter [options]\n" - << "options:\n" - " --sock-dir: The path to ceph daemons socket files dir\n" - " --addrs: Host ip address where exporter is deployed\n" - " --port: Port to deploy exporter on. Default is 9926\n" - " --prio-limit: Only perf counters greater than or equal to prio-limit are fetched. Default: 5\n" - " --stats-period: Time to wait before sending requests again to exporter server (seconds). Default: 5s" - << std::endl; - generic_server_usage(); -} - -int main(int argc, char **argv) { - - auto args = argv_to_vec(argc, argv); - if (args.empty()) { - std::cerr << argv[0] << ": -h or --help for usage" << std::endl; - exit(1); - } - if (ceph_argparse_need_usage(args)) { - usage(); - exit(0); - } - - auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT, - CODE_ENVIRONMENT_DAEMON, 0); - std::string val; - for (auto i = args.begin(); i != args.end();) { - if (ceph_argparse_double_dash(args, i)) { - break; - } else if (ceph_argparse_witharg(args, i, &val, "--sock-dir", (char *)NULL)) { - cct->_conf.set_val("exporter_sock_dir", val); - } else if (ceph_argparse_witharg(args, i, &val, "--addrs", (char *)NULL)) { - cct->_conf.set_val("exporter_addr", val); - } else if (ceph_argparse_witharg(args, i, &val, "--port", (char *)NULL)) { - cct->_conf.set_val("exporter_http_port", val); - } else if (ceph_argparse_witharg(args, i, &val, "--prio-limit", (char *)NULL)) { - cct->_conf.set_val("exporter_prio_limit", val); - } else if (ceph_argparse_witharg(args, i, &val, "--stats-period", (char *)NULL)) { - cct->_conf.set_val("exporter_stats_period", val); - } else { - ++i; - } - } - common_init_finish(g_ceph_context); - - boost::thread server_thread(http_server_thread_entrypoint); - DaemonMetricCollector &collector = collector_instance(); - collector.main(); - server_thread.join(); -} diff --git a/src/exporter/http_server.cc b/src/exporter/http_server.cc deleted file mode 100644 index 317d877..0000000 --- a/src/exporter/http_server.cc +++ /dev/null @@ -1,169 +0,0 @@ -#include "http_server.h" -#include "common/debug.h" -#include "common/hostname.h" -#include "global/global_init.h" -#include "global/global_context.h" -#include "exporter/DaemonMetricCollector.h" - -#include <boost/asio.hpp> -#include <boost/beast/core.hpp> -#include <boost/beast/http.hpp> -#include <boost/beast/version.hpp> -#include <boost/thread/thread.hpp> -#include <chrono> -#include <cstdlib> -#include <ctime> -#include <iostream> -#include <map> -#include <memory> -#include <string> - -#define dout_context g_ceph_context -#define dout_subsys ceph_subsys_ceph_exporter - -namespace beast = boost::beast; // from <boost/beast.hpp> -namespace http = beast::http; // from <boost/beast/http.hpp> -namespace net = boost::asio; // from <boost/asio.hpp> -using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp> - -class http_connection : public std::enable_shared_from_this<http_connection> { -public: - http_connection(tcp::socket socket) : socket_(std::move(socket)) {} - - // Initiate the asynchronous operations associated with the connection. - void start() { - read_request(); - check_deadline(); - } - -private: - tcp::socket socket_; - beast::flat_buffer buffer_{8192}; - http::request<http::dynamic_body> request_; - http::response<http::string_body> response_; - - net::steady_timer deadline_{socket_.get_executor(), std::chrono::seconds(60)}; - - // Asynchronously receive a complete request message. - void read_request() { - auto self = shared_from_this(); - - http::async_read(socket_, buffer_, request_, - [self](beast::error_code ec, std::size_t bytes_transferred) { - boost::ignore_unused(bytes_transferred); - if (ec) { - dout(1) << "ERROR: " << ec.message() << dendl; - return; - } - else { - self->process_request(); - } - }); - } - - // Determine what needs to be done with the request message. - void process_request() { - response_.version(request_.version()); - response_.keep_alive(request_.keep_alive()); - - switch (request_.method()) { - case http::verb::get: - response_.result(http::status::ok); - create_response(); - break; - - default: - // We return responses indicating an error if - // we do not recognize the request method. - response_.result(http::status::method_not_allowed); - response_.set(http::field::content_type, "text/plain"); - std::string body("Invalid request-method '" + - std::string(request_.method_string()) + "'"); - response_.body() = body; - break; - } - - write_response(); - } - - // Construct a response message based on the program state. - void create_response() { - if (request_.target() == "/") { - response_.set(http::field::content_type, "text/html; charset=utf-8"); - std::string body("<html>\n" - "<head><title>Ceph Exporter</title></head>\n" - "<body>\n" - "<h1>Ceph Exporter</h1>\n" - "<p><a href='/metrics'>Metrics</a></p>" - "</body>\n" - "</html>\n"); - response_.body() = body; - } else if (request_.target() == "/metrics") { - response_.set(http::field::content_type, "text/plain; charset=utf-8"); - DaemonMetricCollector &collector = collector_instance(); - std::string metrics = collector.get_metrics(); - response_.body() = metrics; - } else { - response_.result(http::status::method_not_allowed); - response_.set(http::field::content_type, "text/plain"); - response_.body() = "File not found \n"; - } - } - - // Asynchronously transmit the response message. - void write_response() { - auto self = shared_from_this(); - - response_.prepare_payload(); - - http::async_write(socket_, response_, - [self](beast::error_code ec, std::size_t) { - self->socket_.shutdown(tcp::socket::shutdown_send, ec); - self->deadline_.cancel(); - if (ec) { - dout(1) << "ERROR: " << ec.message() << dendl; - return; - } - }); - } - - // Check whether we have spent enough time on this connection. - void check_deadline() { - auto self = shared_from_this(); - - deadline_.async_wait([self](beast::error_code ec) { - if (!ec) { - // Close socket to cancel any outstanding operation. - self->socket_.close(ec); - } - }); - } -}; - -// "Loop" forever accepting new connections. -void http_server(tcp::acceptor &acceptor, tcp::socket &socket) { - acceptor.async_accept(socket, [&](beast::error_code ec) { - if (!ec) - std::make_shared<http_connection>(std::move(socket))->start(); - http_server(acceptor, socket); - }); -} - -void http_server_thread_entrypoint() { - try { - std::string exporter_addr = g_conf().get_val<std::string>("exporter_addr"); - auto const address = net::ip::make_address(exporter_addr); - unsigned short port = g_conf().get_val<int64_t>("exporter_http_port"); - - net::io_context ioc{1}; - - tcp::acceptor acceptor{ioc, {address, port}}; - tcp::socket socket{ioc}; - http_server(acceptor, socket); - dout(1) << "Http server running on " << exporter_addr << ":" << port << dendl; - ioc.run(); - } catch (std::exception const &e) { - dout(1) << "Error: " << e.what() << dendl; - exit(EXIT_FAILURE); - } -} diff --git a/src/exporter/http_server.h b/src/exporter/http_server.h deleted file mode 100644 index 0d0502f..0000000 --- a/src/exporter/http_server.h +++ /dev/null @@ -1,5 +0,0 @@ -#pragma once - -#include <string> - -void http_server_thread_entrypoint(); diff --git a/src/exporter/util.cc b/src/exporter/util.cc deleted file mode 100644 index 0ae190c..0000000 --- a/src/exporter/util.cc +++ /dev/null @@ -1,48 +0,0 @@ -#include "util.h" -#include "common/debug.h" -#include <boost/algorithm/string/classification.hpp> -#include <cctype> -#include <chrono> -#include <fstream> -#include <iostream> -#include <sstream> - -#define dout_context g_ceph_context -#define dout_subsys ceph_subsys_ceph_exporter - -BlockTimer::BlockTimer(std::string file, std::string function) - : file(file), function(function), stopped(false) { - t1 = std::chrono::high_resolution_clock::now(); -} -BlockTimer::~BlockTimer() { - dout(20) << file << ":" << function << ": " << ms.count() << "ms" << dendl; -} - -// useful with stop -double BlockTimer::get_ms() { - return ms.count(); -} - -// Manually stop the timer as you might want to get the time -void BlockTimer::stop() { - if (!stopped) { - stopped = true; - t2 = std::chrono::high_resolution_clock::now(); - ms = t2 - t1; - } -} - -bool string_is_digit(std::string s) { - size_t i = 0; - while (std::isdigit(s[i]) && i < s.size()) { - i++; - } - return i >= s.size(); -} - -std::string read_file_to_string(std::string path) { - std::ifstream is(path); - std::stringstream buffer; - buffer << is.rdbuf(); - return buffer.str(); -} diff --git a/src/exporter/util.h b/src/exporter/util.h deleted file mode 100644 index b1fb83a..0000000 --- a/src/exporter/util.h +++ /dev/null @@ -1,22 +0,0 @@ -#include "common/hostname.h" -#include <chrono> -#include <string> - -#define TIMED_FUNCTION() BlockTimer timer(__FILE__, __FUNCTION__) - -class BlockTimer { - public: - BlockTimer(std::string file, std::string function); - ~BlockTimer(); - void stop(); - double get_ms(); - private: - std::chrono::duration<double, std::milli> ms; - std::string file, function; - bool stopped; - std::chrono::time_point<std::chrono::high_resolution_clock> t1, t2; -}; - -bool string_is_digit(std::string s); -std::string read_file_to_string(std::string path); -std::string get_hostname(std::string path);
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