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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_IN_DOCKER_H
#define FLB_IN_DOCKER_H
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_config.h>
#include <fluent-bit/flb_input.h>
#include <fluent-bit/flb_utils.h>
#include <fluent-bit/flb_log_event_encoder.h>
#define CURRENT_DIR "."
#define PREV_DIR ".."
#define OS_DIR_TYPE 4
#define DOCKER_LONG_ID_LEN 64
#define DOCKER_SHORT_ID_LEN 12
#define DOCKER_CGROUP_V1_MEM_DIR "/sys/fs/cgroup/memory/docker"
#define DOCKER_CGROUP_V1_CPU_DIR "/sys/fs/cgroup/cpu/docker"
#define DOCKER_CGROUP_V1_MEM_LIMIT_FILE "memory.limit_in_bytes"
#define DOCKER_CGROUP_V1_MEM_USAGE_FILE "memory.usage_in_bytes"
#define DOCKER_CGROUP_V1_CPU_USAGE_FILE "cpuacct.usage"
#define DOCKER_LIB_ROOT "/var/lib/docker/containers"
#define DOCKER_CONFIG_JSON "config.v2.json"
#define DOCKER_NAME_ARG "\"Name\""
#define DEFAULT_INTERVAL_SEC "1"
#define DEFAULT_INTERVAL_NSEC "0"
typedef struct docker_info {
char *id;
struct mk_list _head;
} docker_info;
typedef struct cpu_snapshot {
unsigned long used;
} cpu_snapshot;
typedef struct mem_snapshot {
uint64_t limit;
uint64_t used;
} mem_snapshot;
typedef struct docker_snapshot {
char *id;
char *name;
mem_snapshot *mem;
cpu_snapshot *cpu;
struct mk_list _head;
} docker_snapshot;
struct flb_docker;
struct cgroup_api {
int cgroup_version;
struct mk_list* (*get_active_docker_ids) ();
char* (*get_container_name) (struct flb_docker *, char *);
cpu_snapshot* (*get_cpu_snapshot) (struct flb_docker *, char *);
mem_snapshot* (*get_mem_snapshot) (struct flb_docker *, char *);
};
int in_docker_set_cgroup_api_v1(struct cgroup_api *api);
/* Docker Input configuration & context */
struct flb_docker {
int coll_fd; /* collector id/fd */
int interval_sec; /* interval collection time (Second) */
int interval_nsec; /* interval collection time (Nanosecond) */
struct mk_list *whitelist; /* dockers to monitor */
struct mk_list *blacklist; /* dockers to exclude */
struct cgroup_api cgroup_api;
struct flb_input_instance *ins;
struct flb_log_event_encoder log_encoder;
};
int in_docker_collect(struct flb_input_instance *i_ins,
struct flb_config *config, void *in_context);
docker_info *in_docker_init_docker_info(char *id);
#endif
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