diff options
Diffstat (limited to 'src/fluent-bit/plugins/out_datadog/datadog_conf.c')
| -rw-r--r-- | src/fluent-bit/plugins/out_datadog/datadog_conf.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/out_datadog/datadog_conf.c b/src/fluent-bit/plugins/out_datadog/datadog_conf.c new file mode 100644 index 000000000..68377386c --- /dev/null +++ b/src/fluent-bit/plugins/out_datadog/datadog_conf.c @@ -0,0 +1,223 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ + +/* Fluent Bit + * ========== + * Copyright (C) 2015-2022 The Fluent Bit Authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <fluent-bit/flb_output_plugin.h> +#include <fluent-bit/flb_utils.h> +#include <fluent-bit/flb_pack.h> +#include <fluent-bit/flb_config_map.h> + +#include "datadog.h" +#include "datadog_conf.h" + +struct flb_out_datadog *flb_datadog_conf_create(struct flb_output_instance *ins, + struct flb_config *config) +{ + struct flb_out_datadog *ctx = NULL; + int io_flags = 0; + struct flb_upstream *upstream; + const char *api_key; + const char *tmp; + flb_sds_t tmp_sds; + + int ret; + char *protocol = NULL; + char *host = NULL; + char *port = NULL; + char *uri = NULL; + + /* Start resource creation */ + ctx = flb_calloc(1, sizeof(struct flb_out_datadog)); + if (!ctx) { + flb_errno(); + return NULL; + } + ctx->ins = ins; + ctx->nb_additional_entries = 0; + + ret = flb_output_config_map_set(ins, (void *) ctx); + if (ret == -1) { + flb_plg_error(ins, "flb_output_config_map_set failed"); + flb_free(ctx); + return NULL; + } + + tmp = flb_output_get_property("proxy", ins); + if (tmp) { + ret = flb_utils_url_split(tmp, &protocol, &host, &port, &uri); + if (ret == -1) { + flb_plg_error(ctx->ins, "could not parse proxy parameter: '%s'", tmp); + flb_datadog_conf_destroy(ctx); + return NULL; + } + + ctx->proxy_host = host; + ctx->proxy_port = atoi(port); + flb_free(protocol); + flb_free(port); + flb_free(uri); + } + + /* use TLS ? */ + if (ins->use_tls == FLB_TRUE) { + io_flags = FLB_IO_TLS; + tmp_sds = flb_sds_create("https://"); + } + else { + io_flags = FLB_IO_TCP; + tmp_sds = flb_sds_create("http://"); + } + if (!tmp_sds) { + flb_errno(); + flb_datadog_conf_destroy(ctx); + return NULL; + } + ctx->scheme = tmp_sds; + flb_plg_debug(ctx->ins, "scheme: %s", ctx->scheme); + + /* configure URI */ + api_key = flb_output_get_property("apikey", ins); + if (api_key == NULL) { + flb_plg_error(ctx->ins, "no ApiKey configuration key defined"); + flb_datadog_conf_destroy(ctx); + return NULL; + } + + /* Tag Key */ + if (ctx->include_tag_key == FLB_TRUE) { + ctx->nb_additional_entries++; + } + + tmp = flb_output_get_property("dd_source", ins); + if (tmp) { + ctx->nb_additional_entries++; + } + + tmp = flb_output_get_property("dd_service", ins); + if (tmp) { + ctx->nb_additional_entries++; + } + + tmp = flb_output_get_property("dd_tags", ins); + if (tmp) { + ctx->nb_additional_entries++; + } + + tmp = flb_output_get_property("provider", ins); + ctx->remap = tmp && (strlen(tmp) == strlen(FLB_DATADOG_REMAP_PROVIDER)) && \ + (strncmp(tmp, FLB_DATADOG_REMAP_PROVIDER, strlen(tmp)) == 0); + + ctx->uri = flb_sds_create("/api/v2/logs"); + if (!ctx->uri) { + flb_plg_error(ctx->ins, "error on uri generation"); + flb_datadog_conf_destroy(ctx); + return NULL; + } + + flb_plg_debug(ctx->ins, "uri: %s", ctx->uri); + + /* Get network configuration */ + if (!ins->host.name) { + tmp_sds = flb_sds_create(FLB_DATADOG_DEFAULT_HOST); + } + else { + tmp_sds = flb_sds_create(ins->host.name); + } + if (!tmp_sds) { + flb_errno(); + flb_datadog_conf_destroy(ctx); + return NULL; + } + ctx->host = tmp_sds; + flb_plg_debug(ctx->ins, "host: %s", ctx->host); + + if (ins->host.port != 0) { + ctx->port = ins->host.port; + } + if (ctx->port == 0) { + ctx->port = FLB_DATADOG_DEFAULT_PORT; + if (ins->use_tls == FLB_FALSE) { + ctx->port = 80; + } + } + flb_plg_debug(ctx->ins, "port: %i", ctx->port); + + /* Date tag for JSON output */ + ctx->nb_additional_entries++; + flb_plg_debug(ctx->ins, "json_date_key: %s", ctx->json_date_key); + + /* Compress (gzip) */ + tmp = flb_output_get_property("compress", ins); + ctx->compress_gzip = FLB_FALSE; + if (tmp) { + if (strcasecmp(tmp, "gzip") == 0) { + ctx->compress_gzip = FLB_TRUE; + } + } + flb_plg_debug(ctx->ins, "compress_gzip: %i", ctx->compress_gzip); + + /* Prepare an upstream handler */ + if (ctx->proxy) { + flb_plg_trace(ctx->ins, "[out_datadog] Upstream Proxy=%s:%i", + ctx->proxy_host, ctx->proxy_port); + upstream = flb_upstream_create(config, + ctx->proxy_host, + ctx->proxy_port, + io_flags, + ins->tls); + } + else { + upstream = flb_upstream_create(config, ctx->host, ctx->port, io_flags, ins->tls); + } + + if (!upstream) { + flb_plg_error(ctx->ins, "cannot create Upstream context"); + flb_datadog_conf_destroy(ctx); + return NULL; + } + ctx->upstream = upstream; + flb_output_upstream_set(ctx->upstream, ins); + + return ctx; +} + +int flb_datadog_conf_destroy(struct flb_out_datadog *ctx) +{ + if (!ctx) { + return -1; + } + + if (ctx->proxy_host) { + flb_free(ctx->proxy_host); + } + if (ctx->scheme) { + flb_sds_destroy(ctx->scheme); + } + if (ctx->host) { + flb_sds_destroy(ctx->host); + } + if (ctx->uri) { + flb_sds_destroy(ctx->uri); + } + if (ctx->upstream) { + flb_upstream_destroy(ctx->upstream); + } + flb_free(ctx); + + return 0; +} |