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-rw-r--r--exporting/read_config.c503
1 files changed, 503 insertions, 0 deletions
diff --git a/exporting/read_config.c b/exporting/read_config.c
new file mode 100644
index 0000000..995ba57
--- /dev/null
+++ b/exporting/read_config.c
@@ -0,0 +1,503 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "exporting_engine.h"
+
+struct config exporting_config = { .first_section = NULL,
+ .last_section = NULL,
+ .mutex = NETDATA_MUTEX_INITIALIZER,
+ .index = { .avl_tree = { .root = NULL, .compar = appconfig_section_compare },
+ .rwlock = AVL_LOCK_INITIALIZER } };
+
+struct instance *prometheus_exporter_instance = NULL;
+
+static _CONNECTOR_INSTANCE *find_instance(const char *section)
+{
+ _CONNECTOR_INSTANCE *local_ci;
+
+ local_ci = add_connector_instance(NULL, NULL); // Get root section
+ if (unlikely(!local_ci))
+ return local_ci;
+
+ if (!section)
+ return local_ci;
+
+ while (local_ci) {
+ if (!strcmp(local_ci->instance_name, section))
+ break;
+ local_ci = local_ci->next;
+ }
+ return local_ci;
+}
+
+char *expconfig_get(struct config *root, const char *section, const char *name, const char *default_value)
+{
+ _CONNECTOR_INSTANCE *local_ci;
+
+ if (!strcmp(section, CONFIG_SECTION_EXPORTING))
+ return appconfig_get(root, CONFIG_SECTION_EXPORTING, name, default_value);
+
+ local_ci = find_instance(section);
+
+ if (!local_ci)
+ return NULL; // TODO: Check if it is meaningful to return default_value
+
+ return appconfig_get(
+ root, local_ci->instance_name, name,
+ appconfig_get(
+ root, local_ci->connector_name, name, appconfig_get(root, CONFIG_SECTION_EXPORTING, name, default_value)));
+}
+
+int expconfig_get_boolean(struct config *root, const char *section, const char *name, int default_value)
+{
+ _CONNECTOR_INSTANCE *local_ci;
+
+ if (!strcmp(section, CONFIG_SECTION_EXPORTING))
+ return appconfig_get_boolean(root, CONFIG_SECTION_EXPORTING, name, default_value);
+
+ local_ci = find_instance(section);
+
+ if (!local_ci)
+ return 0; // TODO: Check if it is meaningful to return default_value
+
+ return appconfig_get_boolean(
+ root, local_ci->instance_name, name,
+ appconfig_get_boolean(
+ root, local_ci->connector_name, name,
+ appconfig_get_boolean(root, CONFIG_SECTION_EXPORTING, name, default_value)));
+}
+
+long long expconfig_get_number(struct config *root, const char *section, const char *name, long long default_value)
+{
+ _CONNECTOR_INSTANCE *local_ci;
+
+ if (!strcmp(section, CONFIG_SECTION_EXPORTING))
+ return appconfig_get_number(root, CONFIG_SECTION_EXPORTING, name, default_value);
+
+ local_ci = find_instance(section);
+
+ if (!local_ci)
+ return 0; // TODO: Check if it is meaningful to return default_value
+
+ return appconfig_get_number(
+ root, local_ci->instance_name, name,
+ appconfig_get_number(
+ root, local_ci->connector_name, name,
+ appconfig_get_number(root, CONFIG_SECTION_EXPORTING, name, default_value)));
+}
+
+/*
+ * Get the next connector instance that we need to activate
+ *
+ * @param @target_ci will be filled with instance name and connector name
+ *
+ * @return - 1 if more connectors to be fetched, 0 done
+ *
+ */
+
+int get_connector_instance(struct connector_instance *target_ci)
+{
+ static _CONNECTOR_INSTANCE *local_ci = NULL;
+ _CONNECTOR_INSTANCE *global_connector_instance;
+
+ global_connector_instance = find_instance(NULL); // Fetch head of instances
+
+ if (unlikely(!global_connector_instance))
+ return 0;
+
+ if (target_ci == NULL) {
+ local_ci = NULL;
+ return 1;
+ }
+ if (local_ci == NULL)
+ local_ci = global_connector_instance;
+ else {
+ local_ci = local_ci->next;
+ if (local_ci == NULL)
+ return 0;
+ }
+
+ strcpy(target_ci->instance_name, local_ci->instance_name);
+ strcpy(target_ci->connector_name, local_ci->connector_name);
+
+ return 1;
+}
+
+/**
+ * Select Type
+ *
+ * Select the connector type based on the user input
+ *
+ * @param type is the string that defines the connector type
+ *
+ * @return It returns the connector id.
+ */
+EXPORTING_CONNECTOR_TYPE exporting_select_type(const char *type)
+{
+ if (!strcmp(type, "graphite") || !strcmp(type, "graphite:plaintext")) {
+ return EXPORTING_CONNECTOR_TYPE_GRAPHITE;
+ } else if (!strcmp(type, "graphite:http") || !strcmp(type, "graphite:https")) {
+ return EXPORTING_CONNECTOR_TYPE_GRAPHITE_HTTP;
+ } else if (!strcmp(type, "json") || !strcmp(type, "json:plaintext")) {
+ return EXPORTING_CONNECTOR_TYPE_JSON;
+ } else if (!strcmp(type, "json:http") || !strcmp(type, "json:https")) {
+ return EXPORTING_CONNECTOR_TYPE_JSON_HTTP;
+ } else if (!strcmp(type, "opentsdb") || !strcmp(type, "opentsdb:telnet")) {
+ return EXPORTING_CONNECTOR_TYPE_OPENTSDB;
+ } else if (!strcmp(type, "opentsdb:http") || !strcmp(type, "opentsdb:https")) {
+ return EXPORTING_CONNECTOR_TYPE_OPENTSDB_HTTP;
+ } else if (
+ !strcmp(type, "prometheus_remote_write") ||
+ !strcmp(type, "prometheus_remote_write:http") ||
+ !strcmp(type, "prometheus_remote_write:https")) {
+ return EXPORTING_CONNECTOR_TYPE_PROMETHEUS_REMOTE_WRITE;
+ } else if (!strcmp(type, "kinesis") || !strcmp(type, "kinesis:plaintext")) {
+ return EXPORTING_CONNECTOR_TYPE_KINESIS;
+ } else if (!strcmp(type, "pubsub") || !strcmp(type, "pubsub:plaintext")) {
+ return EXPORTING_CONNECTOR_TYPE_PUBSUB;
+ } else if (!strcmp(type, "mongodb") || !strcmp(type, "mongodb:plaintext"))
+ return EXPORTING_CONNECTOR_TYPE_MONGODB;
+
+ return EXPORTING_CONNECTOR_TYPE_UNKNOWN;
+}
+
+EXPORTING_OPTIONS exporting_parse_data_source(const char *data_source, EXPORTING_OPTIONS exporting_options)
+{
+ if (!strcmp(data_source, "raw") || !strcmp(data_source, "as collected") || !strcmp(data_source, "as-collected") ||
+ !strcmp(data_source, "as_collected") || !strcmp(data_source, "ascollected")) {
+ exporting_options |= EXPORTING_SOURCE_DATA_AS_COLLECTED;
+ exporting_options &= ~(EXPORTING_OPTIONS_SOURCE_BITS ^ EXPORTING_SOURCE_DATA_AS_COLLECTED);
+ } else if (!strcmp(data_source, "average")) {
+ exporting_options |= EXPORTING_SOURCE_DATA_AVERAGE;
+ exporting_options &= ~(EXPORTING_OPTIONS_SOURCE_BITS ^ EXPORTING_SOURCE_DATA_AVERAGE);
+ } else if (!strcmp(data_source, "sum") || !strcmp(data_source, "volume")) {
+ exporting_options |= EXPORTING_SOURCE_DATA_SUM;
+ exporting_options &= ~(EXPORTING_OPTIONS_SOURCE_BITS ^ EXPORTING_SOURCE_DATA_SUM);
+ } else {
+ error("EXPORTING: invalid data data_source method '%s'.", data_source);
+ }
+
+ return exporting_options;
+}
+
+/**
+ * Read configuration
+ *
+ * Based on read configuration an engine data structure is filled with exporting connector instances.
+ *
+ * @return Returns a filled engine data structure or NULL if there are no connector instances configured.
+ */
+struct engine *read_exporting_config()
+{
+ int instances_to_activate = 0;
+ int exporting_config_exists = 0;
+
+ static struct engine *engine = NULL;
+ struct connector_instance_list {
+ struct connector_instance local_ci;
+ EXPORTING_CONNECTOR_TYPE backend_type;
+
+ struct connector_instance_list *next;
+ };
+ struct connector_instance local_ci;
+ struct connector_instance_list *tmp_ci_list = NULL, *tmp_ci_list1 = NULL, *tmp_ci_list_prev = NULL;
+
+ if (unlikely(engine))
+ return engine;
+
+ char *filename = strdupz_path_subpath(netdata_configured_user_config_dir, EXPORTING_CONF);
+
+ exporting_config_exists = appconfig_load(&exporting_config, filename, 0, NULL);
+ if (!exporting_config_exists) {
+ info("CONFIG: cannot load user exporting config '%s'. Will try the stock version.", filename);
+ freez(filename);
+
+ filename = strdupz_path_subpath(netdata_configured_stock_config_dir, EXPORTING_CONF);
+ exporting_config_exists = appconfig_load(&exporting_config, filename, 0, NULL);
+ if (!exporting_config_exists)
+ info("CONFIG: cannot load stock exporting config '%s'. Running with internal defaults.", filename);
+ }
+
+ freez(filename);
+
+#define prometheus_config_get(name, value) \
+ appconfig_get( \
+ &exporting_config, CONFIG_SECTION_PROMETHEUS, name, \
+ appconfig_get(&exporting_config, CONFIG_SECTION_EXPORTING, name, value))
+#define prometheus_config_get_number(name, value) \
+ appconfig_get_number( \
+ &exporting_config, CONFIG_SECTION_PROMETHEUS, name, \
+ appconfig_get_number(&exporting_config, CONFIG_SECTION_EXPORTING, name, value))
+#define prometheus_config_get_boolean(name, value) \
+ appconfig_get_boolean( \
+ &exporting_config, CONFIG_SECTION_PROMETHEUS, name, \
+ appconfig_get_boolean(&exporting_config, CONFIG_SECTION_EXPORTING, name, value))
+
+ if (!prometheus_exporter_instance) {
+ prometheus_exporter_instance = callocz(1, sizeof(struct instance));
+
+ prometheus_exporter_instance->config.update_every =
+ prometheus_config_get_number(EXPORTING_UPDATE_EVERY_OPTION_NAME, EXPORTING_UPDATE_EVERY_DEFAULT);
+
+ // wait for backend subsystem to be initialized
+ for (int retries = 0; !global_backend_source && retries < 1000; retries++)
+ sleep_usec(10000);
+
+ if (!global_backend_source)
+ global_backend_source = "average";
+
+ prometheus_exporter_instance->config.options |= global_backend_options & EXPORTING_OPTIONS_SOURCE_BITS;
+
+ char *data_source = prometheus_config_get("data source", global_backend_source);
+ prometheus_exporter_instance->config.options =
+ exporting_parse_data_source(data_source, prometheus_exporter_instance->config.options);
+
+ if (prometheus_config_get_boolean(
+ "send names instead of ids", global_backend_options & EXPORTING_OPTION_SEND_NAMES))
+ prometheus_exporter_instance->config.options |= EXPORTING_OPTION_SEND_NAMES;
+ else
+ prometheus_exporter_instance->config.options &= ~EXPORTING_OPTION_SEND_NAMES;
+
+ if (prometheus_config_get_boolean("send configured labels", CONFIG_BOOLEAN_YES))
+ prometheus_exporter_instance->config.options |= EXPORTING_OPTION_SEND_CONFIGURED_LABELS;
+ else
+ prometheus_exporter_instance->config.options &= ~EXPORTING_OPTION_SEND_CONFIGURED_LABELS;
+
+ if (prometheus_config_get_boolean("send automatic labels", CONFIG_BOOLEAN_NO))
+ prometheus_exporter_instance->config.options |= EXPORTING_OPTION_SEND_AUTOMATIC_LABELS;
+ else
+ prometheus_exporter_instance->config.options &= ~EXPORTING_OPTION_SEND_AUTOMATIC_LABELS;
+
+ prometheus_exporter_instance->config.charts_pattern =
+ simple_pattern_create(prometheus_config_get("send charts matching", "*"), NULL, SIMPLE_PATTERN_EXACT);
+ prometheus_exporter_instance->config.hosts_pattern = simple_pattern_create(
+ prometheus_config_get("send hosts matching", "localhost *"), NULL, SIMPLE_PATTERN_EXACT);
+
+ prometheus_exporter_instance->config.prefix = prometheus_config_get("prefix", global_backend_prefix);
+ }
+
+ // TODO: change BACKEND to EXPORTING
+ while (get_connector_instance(&local_ci)) {
+ info("Processing connector instance (%s)", local_ci.instance_name);
+
+ if (exporter_get_boolean(local_ci.instance_name, "enabled", 0)) {
+ info(
+ "Instance (%s) on connector (%s) is enabled and scheduled for activation",
+ local_ci.instance_name, local_ci.connector_name);
+
+ tmp_ci_list = (struct connector_instance_list *)callocz(1, sizeof(struct connector_instance_list));
+ memcpy(&tmp_ci_list->local_ci, &local_ci, sizeof(local_ci));
+ tmp_ci_list->backend_type = exporting_select_type(local_ci.connector_name);
+ tmp_ci_list->next = tmp_ci_list_prev;
+ tmp_ci_list_prev = tmp_ci_list;
+ instances_to_activate++;
+ } else
+ info("Instance (%s) on connector (%s) is not enabled", local_ci.instance_name, local_ci.connector_name);
+ }
+
+ if (unlikely(!instances_to_activate)) {
+ info("No connector instances to activate");
+ return NULL;
+ }
+
+ engine = (struct engine *)callocz(1, sizeof(struct engine));
+ // TODO: Check and fill engine fields if actually needed
+
+ if (exporting_config_exists) {
+ engine->config.hostname =
+ strdupz(exporter_get(CONFIG_SECTION_EXPORTING, "hostname", netdata_configured_hostname));
+ engine->config.update_every = exporter_get_number(
+ CONFIG_SECTION_EXPORTING, EXPORTING_UPDATE_EVERY_OPTION_NAME, EXPORTING_UPDATE_EVERY_DEFAULT);
+ }
+
+ while (tmp_ci_list) {
+ struct instance *tmp_instance;
+ char *instance_name;
+ char *default_destination = "localhost";
+
+ info("Instance %s on %s", tmp_ci_list->local_ci.instance_name, tmp_ci_list->local_ci.connector_name);
+
+ if (tmp_ci_list->backend_type == EXPORTING_CONNECTOR_TYPE_UNKNOWN) {
+ error("Unknown exporting connector type");
+ goto next_connector_instance;
+ }
+
+#ifndef ENABLE_PROMETHEUS_REMOTE_WRITE
+ if (tmp_ci_list->backend_type == EXPORTING_CONNECTOR_TYPE_PROMETHEUS_REMOTE_WRITE) {
+ error("Prometheus Remote Write support isn't compiled");
+ goto next_connector_instance;
+ }
+#endif
+
+#ifndef HAVE_KINESIS
+ if (tmp_ci_list->backend_type == EXPORTING_CONNECTOR_TYPE_KINESIS) {
+ error("AWS Kinesis support isn't compiled");
+ goto next_connector_instance;
+ }
+#endif
+
+#ifndef ENABLE_EXPORTING_PUBSUB
+ if (tmp_ci_list->backend_type == EXPORTING_CONNECTOR_TYPE_PUBSUB) {
+ error("Google Cloud Pub/Sub support isn't compiled");
+ goto next_connector_instance;
+ }
+#endif
+
+#ifndef HAVE_MONGOC
+ if (tmp_ci_list->backend_type == EXPORTING_CONNECTOR_TYPE_MONGODB) {
+ error("MongoDB support isn't compiled");
+ goto next_connector_instance;
+ }
+#endif
+
+ tmp_instance = (struct instance *)callocz(1, sizeof(struct instance));
+ tmp_instance->next = engine->instance_root;
+ engine->instance_root = tmp_instance;
+
+ tmp_instance->engine = engine;
+ tmp_instance->config.type = tmp_ci_list->backend_type;
+
+ instance_name = tmp_ci_list->local_ci.instance_name;
+
+ tmp_instance->config.type_name = strdupz(tmp_ci_list->local_ci.connector_name);
+ tmp_instance->config.name = strdupz(tmp_ci_list->local_ci.instance_name);
+
+
+ tmp_instance->config.update_every =
+ exporter_get_number(instance_name, EXPORTING_UPDATE_EVERY_OPTION_NAME, EXPORTING_UPDATE_EVERY_DEFAULT);
+
+ tmp_instance->config.buffer_on_failures = exporter_get_number(instance_name, "buffer on failures", 10);
+
+ tmp_instance->config.timeoutms = exporter_get_number(instance_name, "timeout ms", 10000);
+
+ tmp_instance->config.charts_pattern =
+ simple_pattern_create(exporter_get(instance_name, "send charts matching", "*"), NULL, SIMPLE_PATTERN_EXACT);
+
+ tmp_instance->config.hosts_pattern = simple_pattern_create(
+ exporter_get(instance_name, "send hosts matching", "localhost *"), NULL, SIMPLE_PATTERN_EXACT);
+
+ char *data_source = exporter_get(instance_name, "data source", "average");
+
+ tmp_instance->config.options = exporting_parse_data_source(data_source, tmp_instance->config.options);
+ if (EXPORTING_OPTIONS_DATA_SOURCE(tmp_instance->config.options) != EXPORTING_SOURCE_DATA_AS_COLLECTED &&
+ tmp_instance->config.update_every % localhost->rrd_update_every)
+ info(
+ "The update interval %d for instance %s is not a multiple of the database update interval %d. "
+ "Metric values will deviate at different points in time.",
+ tmp_instance->config.update_every, tmp_instance->config.name, localhost->rrd_update_every);
+
+ if (exporter_get_boolean(instance_name, "send configured labels", CONFIG_BOOLEAN_YES))
+ tmp_instance->config.options |= EXPORTING_OPTION_SEND_CONFIGURED_LABELS;
+ else
+ tmp_instance->config.options &= ~EXPORTING_OPTION_SEND_CONFIGURED_LABELS;
+
+ if (exporter_get_boolean(instance_name, "send automatic labels", CONFIG_BOOLEAN_NO))
+ tmp_instance->config.options |= EXPORTING_OPTION_SEND_AUTOMATIC_LABELS;
+ else
+ tmp_instance->config.options &= ~EXPORTING_OPTION_SEND_AUTOMATIC_LABELS;
+
+ if (exporter_get_boolean(instance_name, "send names instead of ids", CONFIG_BOOLEAN_YES))
+ tmp_instance->config.options |= EXPORTING_OPTION_SEND_NAMES;
+ else
+ tmp_instance->config.options &= ~EXPORTING_OPTION_SEND_NAMES;
+
+ if (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_PROMETHEUS_REMOTE_WRITE) {
+ struct prometheus_remote_write_specific_config *connector_specific_config =
+ callocz(1, sizeof(struct prometheus_remote_write_specific_config));
+
+ tmp_instance->config.connector_specific_config = connector_specific_config;
+
+ connector_specific_config->remote_write_path =
+ strdupz(exporter_get(instance_name, "remote write URL path", "/receive"));
+ }
+
+ if (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_KINESIS) {
+ struct aws_kinesis_specific_config *connector_specific_config =
+ callocz(1, sizeof(struct aws_kinesis_specific_config));
+
+ default_destination = "us-east-1";
+
+ tmp_instance->config.connector_specific_config = connector_specific_config;
+
+ connector_specific_config->stream_name = strdupz(exporter_get(instance_name, "stream name", ""));
+
+ connector_specific_config->auth_key_id = strdupz(exporter_get(instance_name, "aws_access_key_id", ""));
+ connector_specific_config->secure_key = strdupz(exporter_get(instance_name, "aws_secret_access_key", ""));
+ }
+
+ if (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_PUBSUB) {
+ struct pubsub_specific_config *connector_specific_config =
+ callocz(1, sizeof(struct pubsub_specific_config));
+
+ default_destination = "pubsub.googleapis.com";
+
+ tmp_instance->config.connector_specific_config = connector_specific_config;
+
+ connector_specific_config->credentials_file = strdupz(exporter_get(instance_name, "credentials file", ""));
+ connector_specific_config->project_id = strdupz(exporter_get(instance_name, "project id", ""));
+ connector_specific_config->topic_id = strdupz(exporter_get(instance_name, "topic id", ""));
+ }
+
+ if (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_MONGODB) {
+ struct mongodb_specific_config *connector_specific_config =
+ callocz(1, sizeof(struct mongodb_specific_config));
+
+ tmp_instance->config.connector_specific_config = connector_specific_config;
+
+ connector_specific_config->database = strdupz(exporter_get(
+ instance_name, "database", ""));
+
+ connector_specific_config->collection = strdupz(exporter_get(
+ instance_name, "collection", ""));
+ }
+
+ tmp_instance->config.destination = strdupz(exporter_get(instance_name, "destination", default_destination));
+
+ tmp_instance->config.prefix = strdupz(exporter_get(instance_name, "prefix", "netdata"));
+
+ tmp_instance->config.hostname = strdupz(exporter_get(instance_name, "hostname", engine->config.hostname));
+
+#ifdef ENABLE_HTTPS
+
+#define STR_GRAPHITE_HTTPS "graphite:https"
+#define STR_JSON_HTTPS "json:https"
+#define STR_OPENTSDB_HTTPS "opentsdb:https"
+#define STR_PROMETHEUS_REMOTE_WRITE_HTTPS "prometheus_remote_write:https"
+
+ if ((tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_GRAPHITE_HTTP &&
+ !strncmp(tmp_ci_list->local_ci.connector_name, STR_GRAPHITE_HTTPS, strlen(STR_GRAPHITE_HTTPS))) ||
+ (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_JSON_HTTP &&
+ !strncmp(tmp_ci_list->local_ci.connector_name, STR_JSON_HTTPS, strlen(STR_JSON_HTTPS))) ||
+ (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_OPENTSDB_HTTP &&
+ !strncmp(tmp_ci_list->local_ci.connector_name, STR_OPENTSDB_HTTPS, strlen(STR_OPENTSDB_HTTPS))) ||
+ (tmp_instance->config.type == EXPORTING_CONNECTOR_TYPE_PROMETHEUS_REMOTE_WRITE &&
+ !strncmp(
+ tmp_ci_list->local_ci.connector_name, STR_PROMETHEUS_REMOTE_WRITE_HTTPS,
+ strlen(STR_PROMETHEUS_REMOTE_WRITE_HTTPS)))) {
+ tmp_instance->config.options |= EXPORTING_OPTION_USE_TLS;
+ }
+#endif
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ info(
+ " Dest=[%s], upd=[%d], buffer=[%d] timeout=[%ld] options=[%u]",
+ tmp_instance->config.destination,
+ tmp_instance->config.update_every,
+ tmp_instance->config.buffer_on_failures,
+ tmp_instance->config.timeoutms,
+ tmp_instance->config.options);
+#endif
+
+ if (unlikely(!exporting_config_exists) && !engine->config.hostname) {
+ engine->config.hostname = strdupz(config_get(instance_name, "hostname", netdata_configured_hostname));
+ engine->config.update_every =
+ config_get_number(instance_name, EXPORTING_UPDATE_EVERY_OPTION_NAME, EXPORTING_UPDATE_EVERY_DEFAULT);
+ }
+
+ next_connector_instance:
+ tmp_ci_list1 = tmp_ci_list->next;
+ freez(tmp_ci_list);
+ tmp_ci_list = tmp_ci_list1;
+ }
+
+ return engine;
+}