Adding upstream version 1.29.0.upstream/1.29.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 503 insertions, 0 deletions

diff --git a/exporting/read_config.c b/exporting/read_config.c
new file mode 100644
index 000000000..995ba578f
--- /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;
+}