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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_LOKI_H
#define FLB_OUT_LOKI_H
#include <fluent-bit/flb_output_plugin.h>
#include <fluent-bit/flb_record_accessor.h>
#include <fluent-bit/flb_upstream.h>
#include <fluent-bit/flb_hash_table.h>
#include <cfl/cfl_list.h>
#define FLB_LOKI_CT "Content-Type"
#define FLB_LOKI_CT_JSON "application/json"
#define FLB_LOKI_URI "/loki/api/v1/push"
#define FLB_LOKI_HOST "127.0.0.1"
#define FLB_LOKI_PORT 3100
#define FLB_LOKI_HEADER_SCOPE "X-Scope-OrgID"
#define FLB_LOKI_KV_STR 0 /* sds string */
#define FLB_LOKI_KV_RA 1 /* record accessor */
#define FLB_LOKI_KV_K8S 2 /* kubernetes label */
/* Output line format */
#define FLB_LOKI_FMT_JSON 0
#define FLB_LOKI_FMT_KV 1
struct flb_loki_kv {
int val_type; /* FLB_LOKI_KV_STR or FLB_LOKI_KV_RA */
flb_sds_t key; /* string key */
flb_sds_t str_val; /* string value */
flb_sds_t key_normalized; /* normalized key name when using ra */
struct flb_record_accessor *ra_key; /* record accessor key context */
struct flb_record_accessor *ra_val; /* record accessor value context */
struct mk_list _head; /* link to flb_loki->labels_list */
};
struct flb_loki {
/* Public configuration properties */
int auto_kubernetes_labels;
int drop_single_key;
flb_sds_t line_format;
flb_sds_t tenant_id;
flb_sds_t tenant_id_key_config;
int compress_gzip;
/* HTTP Auth */
flb_sds_t http_user;
flb_sds_t http_passwd;
/* Bearer Token Auth */
flb_sds_t bearer_token;
/* Labels */
struct mk_list *labels;
struct mk_list *label_keys;
struct mk_list *remove_keys;
flb_sds_t label_map_path;
/* Private */
int tcp_port;
char *tcp_host;
int out_line_format;
int ra_used; /* number of record accessor label keys */
struct flb_record_accessor *ra_k8s; /* kubernetes record accessor */
struct mk_list labels_list; /* list of flb_loki_kv nodes */
struct mk_list remove_keys_derived; /* remove_keys with label RAs */
struct flb_mp_accessor *remove_mpa; /* remove_keys multi-pattern accessor */
struct flb_record_accessor *ra_tenant_id_key; /* dynamic tenant id key */
struct cfl_list dynamic_tenant_list;
pthread_mutex_t dynamic_tenant_list_lock;
/* Upstream Context */
struct flb_upstream *u;
/* Plugin instance */
struct flb_output_instance *ins;
};
#endif
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