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/* -*- 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.
*/
#ifndef FLB_OUT_FIREHOSE_H
#define FLB_OUT_FIREHOSE_H
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_sds.h>
#include <fluent-bit/flb_aws_credentials.h>
#include <fluent-bit/flb_http_client.h>
#include <fluent-bit/flb_aws_util.h>
#include <fluent-bit/flb_signv4.h>
#define DEFAULT_TIME_KEY_FORMAT "%Y-%m-%dT%H:%M:%S"
/* buffers used for each flush */
struct flush {
/* temporary buffer for storing the serialized event messages */
char *tmp_buf;
size_t tmp_buf_size;
/* current index of tmp_buf */
size_t tmp_buf_offset;
/* projected final size of the payload for this flush */
size_t data_size;
/* log records- each of these has a pointer to their message in tmp_buf */
struct firehose_event *events;
int events_capacity;
/* current event */
int event_index;
/* the payload of the API request */
char *out_buf;
size_t out_buf_size;
/* buffer used to temporarily hold an event during processing */
char *event_buf;
size_t event_buf_size;
int records_sent;
int records_processed;
};
struct firehose_event {
char *json;
size_t len;
struct timespec timestamp;
};
struct flb_firehose {
/*
* TLS instances can not be re-used. So we have one for:
* - Base cred provider (needed for EKS provider)
* - STS Assume role provider
* - The CloudWatch Logs client for this plugin
*/
struct flb_tls *cred_tls;
struct flb_tls *sts_tls;
struct flb_tls *client_tls;
struct flb_aws_provider *aws_provider;
struct flb_aws_provider *base_aws_provider;
struct flb_aws_client *firehose_client;
/* configuration options */
const char *delivery_stream;
const char *time_key;
const char *time_key_format;
const char *region;
const char *role_arn;
const char *log_key;
const char *external_id;
char *sts_endpoint;
char *profile;
int custom_endpoint;
int retry_requests;
int compression;
/* must be freed on shutdown if custom_endpoint is not set */
char *endpoint;
/* Plugin output instance reference */
struct flb_output_instance *ins;
};
void flb_firehose_ctx_destroy(struct flb_firehose *ctx);
#endif
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