\u524d\u8a00<\/p>\n
\u4e0a\u4e00\u7bc7\u6587\u7ae0\u6211\u4eec\u5b9e\u73b0\u4e86Prometheus\u76d1\u63a7\u7cfb\u7edf，\u4f46Prometheus\u53ea\u8d1f\u8d23\u91c7\u96c6\u548c\u5b58\u50a8\u6570\u636e，\u600e\u4e48\u628a\u6570\u636e\u53d8\u6210\u6f02\u4eae\u7684\u56fe\u8868\u548cDashboard\u5462？<\/p>\n
Grafana\u662f\u4e91\u539f\u751f\u76d1\u63a7\u7684\u53ef\u89c6\u5316\u5c42，\u652f\u6301\u591a\u79cd\u6570\u636e\u6e90\u3001\u4e30\u5bcc\u7684\u56fe\u8868\u7c7b\u578b\u548c\u7075\u6d3b\u7684Dashboard\u914d\u7f6e\u3002<\/p>\n
\u4eca\u5929\u6211\u4eec\u4ece\u96f6\u5b9e\u73b0\u4e00\u4e2aGrafana\u7684\u6838\u5fc3\u529f\u80fd：<\/p>\n
\u00b7 \u6570\u636e\u6e90\u7ba1\u7406（Prometheus\u6a21\u62df）
\n\u00b7 Dashboard\u914d\u7f6e
\n\u00b7 \u56fe\u8868\u6e32\u67d3（Panel）
\n\u00b7 \u67e5\u8be2\u7f16\u8f91\u5668
\n\u00b7 \u6a21\u677f\u53d8\u91cf
\n\u00b7 \u544a\u8b66\u53ef\u89c6\u5316<\/p>\n
—<\/p>\n
\u4e00\u3001Grafana\u6838\u5fc3\u539f\u7406<\/p>\n
1. \u67b6\u6784\u56fe<\/p>\n
```
\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n\u2502 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Grafana \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u2502
\n\u2502 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2502 \u00a0\u6570\u636e\u6e90 \u00a0 \u00a0 \u2502 \u00a0\u2502 \u00a0Dashboard \u00a0\u2502 \u00a0\u2502 \u00a0\u544a\u8b66\u7ba1\u7406 \u00a0 \u2502 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2502 \u00a0\u7ba1\u7406 \u00a0 \u00a0 \u00a0 \u2502 \u00a0\u2502 \u00a0\u7ba1\u7406 \u00a0 \u00a0 \u00a0 \u2502 \u00a0\u2502 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u2502 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2502 \u00a0\u67e5\u8be2\u5f15\u64ce \u00a0 \u2502 \u00a0\u2502 \u00a0\u56fe\u8868\u6e32\u67d3 \u00a0 \u2502 \u00a0\u2502 \u00a0\u6a21\u677f\u53d8\u91cf \u00a0 \u2502 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2502 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u2502 \u00a0\u2502 \u00a0(Panel) \u00a0 \u00a0\u2502 \u00a0\u2502 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u2502 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0 \u00a0 \u00a0 \u2502
\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2502
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u25bc
\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n\u2502 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u6570\u636e\u6e90\u96c6\u7fa4 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u00a0 \u00a0 \u00a0 \u2502
\n\u2502 \u00a0\u2502 Prometheus \u00a0\u2502 \u00a0\u2502 \u00a0InfluxDB \u00a0 \u2502 \u00a0\u2502 \u00a0Elasticsearch\u2502 \u00a0 \u00a0 \u00a0\u2502
\n\u2502 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u00a0 \u00a0 \u00a0 \u2502
\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2502
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u25bc
\n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n\u2502 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Browser (UI) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u2502
\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
\n```<\/p>\n
2. \u6838\u5fc3\u6982\u5ff5<\/p>\n
\u6982\u5ff5 \u8bf4\u660e
\nDataSource \u6570\u636e\u6e90（Prometheus\/MySQL\/ES）
\nDashboard \u9762\u677f\u96c6\u5408
\nPanel \u5355\u4e2a\u56fe\u8868
\nQuery \u67e5\u8be2\u8868\u8fbe\u5f0f
\nTemplate Variable \u6a21\u677f\u53d8\u91cf<\/p>\n
—<\/p>\n
\u4e8c\u3001\u5b8c\u6574\u4ee3\u7801\u5b9e\u73b0<\/p>\n
1. \u57fa\u7840\u6570\u636e\u7ed3\u6784<\/p>\n
```c
\n#include <stdio.h>
\n#include <stdlib.h>
\n#include <string.h>
\n#include <unistd.h>
\n#include <pthread.h>
\n#include <time.h>
\n#include <math.h>
\n#include <ctype.h><\/p>\n
#define MAX_TITLE 256
\n#define MAX_QUERY 512
\n#define MAX_DATASOURCE 64
\n#define MAX_TARGETS 16
\n#define MAX_ROWS 20
\n#define MAX_COLS 12<\/p>\n
\/\/ \u6570\u636e\u6e90\u7c7b\u578b
\ntypedef enum {
\n\u00a0 \u00a0 DS_PROMETHEUS = 0,
\n\u00a0 \u00a0 DS_INFLUXDB = 1,
\n\u00a0 \u00a0 DS_ELASTICSEARCH = 2,
\n\u00a0 \u00a0 DS_MYSQL = 3
\n} ds_type_t;<\/p>\n
\/\/ \u56fe\u8868\u7c7b\u578b
\ntypedef enum {
\n\u00a0 \u00a0 PANEL_GRAPH = 0,
\n\u00a0 \u00a0 PANEL_STAT,
\n\u00a0 \u00a0 PANEL_TABLE,
\n\u00a0 \u00a0 PANEL_HEATMAP,
\n\u00a0 \u00a0 PANEL_BARGAUGE
\n} panel_type_t;<\/p>\n
\/\/ \u6570\u636e\u70b9
\ntypedef struct data_point {
\n\u00a0 \u00a0 time_t timestamp;
\n\u00a0 \u00a0 double value;
\n\u00a0 \u00a0 struct data_point *next;
\n} data_point_t;<\/p>\n
\/\/ \u65f6\u95f4\u5e8f\u5217
\ntypedef struct time_series {
\n\u00a0 \u00a0 char name[128];
\n\u00a0 \u00a0 char labels[256];
\n\u00a0 \u00a0 data_point_t *points;
\n\u00a0 \u00a0 int point_count;
\n\u00a0 \u00a0 struct time_series *next;
\n} time_series_t;<\/p>\n
\/\/ \u67e5\u8be2\u7ed3\u679c
\ntypedef struct query_result {
\n\u00a0 \u00a0 time_series_t *series;
\n\u00a0 \u00a0 int series_count;
\n} query_result_t;<\/p>\n
\/\/ \u6570\u636e\u6e90
\ntypedef struct datasource {
\n\u00a0 \u00a0 char name[MAX_DATASOURCE];
\n\u00a0 \u00a0 ds_type_t type;
\n\u00a0 \u00a0 char url[256];
\n\u00a0 \u00a0 char database[64];
\n\u00a0 \u00a0 char username[64];
\n\u00a0 \u00a0 char password[64];
\n\u00a0 \u00a0 int default_ds;
\n\u00a0 \u00a0 struct datasource *next;
\n} datasource_t;<\/p>\n
\/\/ \u67e5\u8be2\u76ee\u6807
\ntypedef struct query_target {
\n\u00a0 \u00a0 char ref_id[4];
\n\u00a0 \u00a0 char query[MAX_QUERY];
\n\u00a0 \u00a0 char legend_format[64];
\n\u00a0 \u00a0 int hide;
\n\u00a0 \u00a0 struct query_target *next;
\n} query_target_t;<\/p>\n
\/\/ Panel
\ntypedef struct panel {
\n\u00a0 \u00a0 char title[MAX_TITLE];
\n\u00a0 \u00a0 panel_type_t type;
\n\u00a0 \u00a0 int grid_x;
\n\u00a0 \u00a0 int grid_y;
\n\u00a0 \u00a0 int grid_w;
\n\u00a0 \u00a0 int grid_h;
\n\u00a0 \u00a0 char datasource[MAX_DATASOURCE];
\n\u00a0 \u00a0 query_target_t *targets;
\n\u00a0 \u00a0 int target_count;
\n\u00a0 \u00a0 char field_config[256];
\n\u00a0 \u00a0 struct panel *next;
\n} panel_t;<\/p>\n
\/\/ Row（\u884c）
\ntypedef struct dashboard_row {
\n\u00a0 \u00a0 char title[MAX_TITLE];
\n\u00a0 \u00a0 int collapsed;
\n\u00a0 \u00a0 panel_t *panels;
\n\u00a0 \u00a0 int panel_count;
\n\u00a0 \u00a0 struct dashboard_row *next;
\n} dashboard_row_t;<\/p>\n
\/\/ Dashboard
\ntypedef struct dashboard {
\n\u00a0 \u00a0 char title[MAX_TITLE];
\n\u00a0 \u00a0 char uid[32];
\n\u00a0 \u00a0 dashboard_row_t *rows;
\n\u00a0 \u00a0 int row_count;
\n\u00a0 \u00a0 char tags[10][64];
\n\u00a0 \u00a0 int tag_count;
\n\u00a0 \u00a0 int time_from;
\n\u00a0 \u00a0 int time_to;
\n\u00a0 \u00a0 int refresh_interval;
\n} dashboard_t;<\/p>\n
\/\/ \u4eea\u8868\u76d8\u7ba1\u7406\u5668
\ntypedef struct dashboard_manager {
\n\u00a0 \u00a0 dashboard_t *dashboards;
\n\u00a0 \u00a0 datasource_t *datasources;
\n\u00a0 \u00a0 int dashboard_count;
\n\u00a0 \u00a0 pthread_mutex_t mutex;
\n} dashboard_manager_t;
\n```<\/p>\n
2. \u6570\u636e\u6e90\u7ba1\u7406<\/p>\n
```c
\n\/\/ \u521b\u5efa\u4eea\u8868\u76d8\u7ba1\u7406\u5668
\ndashboard_manager_t *dm_create(void) {
\n\u00a0 \u00a0 dashboard_manager_t *dm = malloc(sizeof(dashboard_manager_t));
\n\u00a0 \u00a0 dm->dashboards = NULL;
\n\u00a0 \u00a0 dm->datasources = NULL;
\n\u00a0 \u00a0 dm->dashboard_count = 0;
\n\u00a0 \u00a0 pthread_mutex_init(&dm->mutex, NULL);
\n\u00a0 \u00a0 printf("[Grafana] \u4eea\u8868\u76d8\u7ba1\u7406\u5668\u521b\u5efa\\\\n");
\n\u00a0 \u00a0 return dm;
\n}<\/p>\n
\/\/ \u6dfb\u52a0\u6570\u636e\u6e90
\nvoid dm_add_datasource(dashboard_manager_t *dm, const char *name,
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ds_type_t type, const char *url) {
\n\u00a0 \u00a0 pthread_mutex_lock(&dm->mutex);
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 datasource_t *ds = malloc(sizeof(datasource_t));
\n\u00a0 \u00a0 strcpy(ds->name, name);
\n\u00a0 \u00a0 ds->type = type;
\n\u00a0 \u00a0 strcpy(ds->url, url);
\n\u00a0 \u00a0 ds->next = dm->datasources;
\n\u00a0 \u00a0 dm->datasources = ds;
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 pthread_mutex_unlock(&dm->mutex);
\n\u00a0 \u00a0 printf("[Grafana] \u6dfb\u52a0\u6570\u636e\u6e90: %s\\\\n", name);
\n}<\/p>\n
\/\/ \u67e5\u627e\u6570\u636e\u6e90
\ndatasource_t *dm_get_datasource(dashboard_manager_t *dm, const char *name) {
\n\u00a0 \u00a0 pthread_mutex_lock(&dm->mutex);
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 datasource_t *ds = dm->datasources;
\n\u00a0 \u00a0 while (ds) {
\n\u00a0 \u00a0 \u00a0 \u00a0 if (strcmp(ds->name, name) == 0) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 pthread_mutex_unlock(&dm->mutex);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return ds;
\n\u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 ds = ds->next;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 pthread_mutex_unlock(&dm->mutex);
\n\u00a0 \u00a0 return NULL;
\n}
\n```<\/p>\n
3. \u67e5\u8be2\u5f15\u64ce<\/p>\n
```c
\n\/\/ \u6267\u884cPrometheus\u67e5\u8be2（\u6a21\u62df）
\nquery_result_t *execute_prometheus_query(const char *query,\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0time_t start, time_t end) {
\n\u00a0 \u00a0 query_result_t *result = malloc(sizeof(query_result_t));
\n\u00a0 \u00a0 result->series = NULL;
\n\u00a0 \u00a0 result->series_count = 0;
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u6a21\u62df\u6570\u636e
\n\u00a0 \u00a0 time_series_t *ts = malloc(sizeof(time_series_t));
\n\u00a0 \u00a0 strcpy(ts->name, query);
\n\u00a0 \u00a0 strcpy(ts->labels, "{}");
\n\u00a0 \u00a0 ts->points = NULL;
\n\u00a0 \u00a0 ts->point_count = 0;
\n\u00a0 \u00a0 ts->next = NULL;
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u751f\u6210\u6a21\u62df\u6570\u636e\u70b9
\n\u00a0 \u00a0 int count = 20 + rand() % 10;
\n\u00a0 \u00a0 for (int i = 0; i < count; i++) {
\n\u00a0 \u00a0 \u00a0 \u00a0 data_point_t *dp = malloc(sizeof(data_point_t));
\n\u00a0 \u00a0 \u00a0 \u00a0 dp->timestamp = start + i * (end – start) \/ count;
\n\u00a0 \u00a0 \u00a0 \u00a0 dp->value = 10 + rand() % 90 + (i % 10) * 0.5;
\n\u00a0 \u00a0 \u00a0 \u00a0 dp->next = ts->points;
\n\u00a0 \u00a0 \u00a0 \u00a0 ts->points = dp;
\n\u00a0 \u00a0 \u00a0 \u00a0 ts->point_count++;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 result->series = ts;
\n\u00a0 \u00a0 result->series_count = 1;
\n\u00a0 \u00a0 return result;
\n}<\/p>\n
\/\/ \u6267\u884c\u67e5\u8be2
\nquery_result_t *dm_query(dashboard_manager_t *dm, const char *datasource,
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0const char *query, time_t start, time_t end) {
\n\u00a0 \u00a0 datasource_t *ds = dm_get_datasource(dm, datasource);
\n\u00a0 \u00a0 if (!ds) {
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(stderr, "\u6570\u636e\u6e90\u672a\u627e\u5230: %s\\\\n", datasource);
\n\u00a0 \u00a0 \u00a0 \u00a0 return NULL;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 if (ds->type == DS_PROMETHEUS) {
\n\u00a0 \u00a0 \u00a0 \u00a0 return execute_prometheus_query(query, start, end);
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 return NULL;
\n}<\/p>\n
\/\/ \u91ca\u653e\u67e5\u8be2\u7ed3\u679c
\nvoid free_query_result(query_result_t *result) {
\n\u00a0 \u00a0 if (!result) return;
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 time_series_t *ts = result->series;
\n\u00a0 \u00a0 while (ts) {
\n\u00a0 \u00a0 \u00a0 \u00a0 time_series_t *next_ts = ts->next;
\n\u00a0 \u00a0 \u00a0 \u00a0 data_point_t *dp = ts->points;
\n\u00a0 \u00a0 \u00a0 \u00a0 while (dp) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 data_point_t *next_dp = dp->next;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 free(dp);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 dp = next_dp;
\n\u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 free(ts);
\n\u00a0 \u00a0 \u00a0 \u00a0 ts = next_ts;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0 free(result);
\n}
\n```<\/p>\n
4. Dashboard\u914d\u7f6e<\/p>\n
```c
\n\/\/ \u521b\u5efaDashboard
\ndashboard_t *dm_create_dashboard(dashboard_manager_t *dm, const char *title) {
\n\u00a0 \u00a0 pthread_mutex_lock(&dm->mutex);
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 dashboard_t *db = malloc(sizeof(dashboard_t));
\n\u00a0 \u00a0 strcpy(db->title, title);
\n\u00a0 \u00a0 snprintf(db->uid, sizeof(db->uid), "dash-%d", time(NULL));
\n\u00a0 \u00a0 db->rows = NULL;
\n\u00a0 \u00a0 db->row_count = 0;
\n\u00a0 \u00a0 db->tag_count = 0;
\n\u00a0 \u00a0 db->time_from = 3600; \u00a0\/\/ \u9ed8\u8ba41\u5c0f\u65f6
\n\u00a0 \u00a0 db->time_to = 0;
\n\u00a0 \u00a0 db->refresh_interval = 30;
\n\u00a0 \u00a0 db->next = dm->dashboards;
\n\u00a0 \u00a0 dm->dashboards = db;
\n\u00a0 \u00a0 dm->dashboard_count++;
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 pthread_mutex_unlock(&dm->mutex);
\n\u00a0 \u00a0 printf("[Grafana] \u521b\u5efaDashboard: %s\\\\n", title);
\n\u00a0 \u00a0 return db;
\n}<\/p>\n
\/\/ \u6dfb\u52a0Row
\ndashboard_row_t *dm_add_row(dashboard_t *db, const char *title) {
\n\u00a0 \u00a0 dashboard_row_t *row = malloc(sizeof(dashboard_row_t));
\n\u00a0 \u00a0 strcpy(row->title, title);
\n\u00a0 \u00a0 row->collapsed = 0;
\n\u00a0 \u00a0 row->panels = NULL;
\n\u00a0 \u00a0 row->panel_count = 0;
\n\u00a0 \u00a0 row->next = db->rows;
\n\u00a0 \u00a0 db->rows = row;
\n\u00a0 \u00a0 db->row_count++;
\n\u00a0 \u00a0 return row;
\n}<\/p>\n
\/\/ \u6dfb\u52a0Panel
\npanel_t *dm_add_panel(dashboard_row_t *row, const char *title, panel_type_t type,
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const char *datasource, int w, int h) {
\n\u00a0 \u00a0 panel_t *panel = malloc(sizeof(panel_t));
\n\u00a0 \u00a0 strcpy(panel->title, title);
\n\u00a0 \u00a0 panel->type = type;
\n\u00a0 \u00a0 panel->grid_w = w;
\n\u00a0 \u00a0 panel->grid_h = h;
\n\u00a0 \u00a0 strcpy(panel->datasource, datasource);
\n\u00a0 \u00a0 panel->targets = NULL;
\n\u00a0 \u00a0 panel->target_count = 0;
\n\u00a0 \u00a0 panel->next = row->panels;
\n\u00a0 \u00a0 row->panels = panel;
\n\u00a0 \u00a0 row->panel_count++;
\n\u00a0 \u00a0 return panel;
\n}<\/p>\n
\/\/ \u6dfb\u52a0\u67e5\u8be2\u76ee\u6807
\nvoid dm_add_target(panel_t *panel, const char *ref_id, const char *query) {
\n\u00a0 \u00a0 query_target_t *target = malloc(sizeof(query_target_t));
\n\u00a0 \u00a0 strcpy(target->ref_id, ref_id);
\n\u00a0 \u00a0 strcpy(target->query, query);
\n\u00a0 \u00a0 target->legend_format[0] = '\\\\0';
\n\u00a0 \u00a0 target->hide = 0;
\n\u00a0 \u00a0 target->next = panel->targets;
\n\u00a0 \u00a0 panel->targets = target;
\n\u00a0 \u00a0 panel->target_count++;
\n}
\n```<\/p>\n
5. \u56fe\u8868\u6e32\u67d3（HTML\u8f93\u51fa）<\/p>\n
```c
\n\/\/ \u6e32\u67d3\u6570\u636e\u70b9\u4e3a\u56fe\u8868
\nvoid render_graph_html(panel_t *panel, query_result_t *result, FILE *fp) {
\n\u00a0 \u00a0 fprintf(fp, "<div class='panel graph'>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, " \u00a0<h3>%s<\/h3>\\\\n", panel->title);
\n\u00a0 \u00a0 fprintf(fp, " \u00a0<div class='graph-container' style='height:250px;'>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, " \u00a0 \u00a0<svg width='100%%' height='100%%'>\\\\n");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 time_series_t *ts = result->series;
\n\u00a0 \u00a0 int colors[] = {0x2196F3, 0x4CAF50, 0xFF9800, 0xF44336, 0x9C27B0};
\n\u00a0 \u00a0 int color_idx = 0;
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 while (ts) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u8ba1\u7b97\u8303\u56f4
\n\u00a0 \u00a0 \u00a0 \u00a0 double min_val = 1e9, max_val = -1e9;
\n\u00a0 \u00a0 \u00a0 \u00a0 data_point_t *dp = ts->points;
\n\u00a0 \u00a0 \u00a0 \u00a0 while (dp) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (dp->value < min_val) min_val = dp->value;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (dp->value > max_val) max_val = dp->value;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 dp = dp->next;
\n\u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 double range = max_val – min_val;
\n\u00a0 \u00a0 \u00a0 \u00a0 if (range < 1) range = 1;
\n\u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u7ed8\u5236\u6298\u7ebf
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, " \u00a0 \u00a0<polyline points=\\\\"");
\n\u00a0 \u00a0 \u00a0 \u00a0 dp = ts->points;
\n\u00a0 \u00a0 \u00a0 \u00a0 int count = 0;
\n\u00a0 \u00a0 \u00a0 \u00a0 while (dp) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 double x = (count \/ (double)ts->point_count) * 100;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 double y = 100 – ((dp->value – min_val) \/ range) * 90 – 5;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, "%.1f,%.1f ", x, y);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 count++;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 dp = dp->next;
\n\u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, "\\\\" fill=\\\\"none\\\\" stroke=\\\\"#%06X\\\\" stroke-width=\\\\"2\\\\"\/>\\\\n",\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 colors[color_idx % 5]);
\n\u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u56fe\u4f8b
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, " \u00a0 \u00a0<text x='%d' y='%d' font-size='12' fill='#%06X'>%s<\/text>\\\\n",
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 10, 20 + color_idx * 20, colors[color_idx % 5], ts->name);
\n\u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 color_idx++;
\n\u00a0 \u00a0 \u00a0 \u00a0 ts = ts->next;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 fprintf(fp, " \u00a0 \u00a0<\/svg>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, " \u00a0<\/div>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<\/div>\\\\n");
\n}<\/p>\n
\/\/ \u6e32\u67d3\u7edf\u8ba1\u9762\u677f
\nvoid render_stat_html(panel_t *panel, query_result_t *result, FILE *fp) {
\n\u00a0 \u00a0 fprintf(fp, "<div class='panel stat'>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, " \u00a0<h3>%s<\/h3>\\\\n", panel->title);
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 if (result && result->series) {
\n\u00a0 \u00a0 \u00a0 \u00a0 data_point_t *dp = result->series->points;
\n\u00a0 \u00a0 \u00a0 \u00a0 double last_val = 0;
\n\u00a0 \u00a0 \u00a0 \u00a0 while (dp) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 last_val = dp->value;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 dp = dp->next;
\n\u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, " \u00a0<div class='stat-value'>%.2f<\/div>\\\\n", last_val);
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0 fprintf(fp, "<\/div>\\\\n");
\n}<\/p>\n
\/\/ \u6e32\u67d3Dashboard\u4e3aHTML
\nvoid dm_render_dashboard_html(dashboard_manager_t *dm, const char *uid, FILE *fp) {
\n\u00a0 \u00a0 \/\/ \u67e5\u627eDashboard
\n\u00a0 \u00a0 dashboard_t *db = dm->dashboards;
\n\u00a0 \u00a0 while (db) {
\n\u00a0 \u00a0 \u00a0 \u00a0 if (strcmp(db->uid, uid) == 0) break;
\n\u00a0 \u00a0 \u00a0 \u00a0 db = db->next;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0 if (!db) {
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, "<h1>Dashboard not found: %s<\/h1>\\\\n", uid);
\n\u00a0 \u00a0 \u00a0 \u00a0 return;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 fprintf(fp, "<!DOCTYPE html>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<html><head>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<title>%s – Grafana<\/title>\\\\n", db->title);
\n\u00a0 \u00a0 fprintf(fp, "<style>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "body{font-family:sans-serif;background:#1a1a2e;color:#eee;padding:20px;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, ".dashboard{max-width:1400px;margin:0 auto;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, ".row{background:#16213e;border-radius:8px;padding:15px;margin:10px 0;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, ".panel{background:#1a1a3e;border-radius:8px;padding:15px;margin:10px 0;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, ".panel.graph{border-left:4px solid #2196F3;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, ".panel.stat{text-align:center;border-left:4px solid #4CAF50;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, ".panel.stat .stat-value{font-size:48px;font-weight:bold;color:#4CAF50;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "h1{color:#eee;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "h3{margin:0 0 10px 0;color:#aaa;font-weight:normal;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "svg{background:#0d0d1a;border-radius:4px;}\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<\/style>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<\/head><body>\\\\n");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 fprintf(fp, "<div class='dashboard'>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<h1>📊 %s<\/h1>\\\\n", db->title);
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u6e32\u67d3Rows
\n\u00a0 \u00a0 dashboard_row_t *row = db->rows;
\n\u00a0 \u00a0 while (row) {
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, "<div class='row'>\\\\n");
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, "<h2>%s<\/h2>\\\\n", row->title);
\n\u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 panel_t *panel = row->panels;
\n\u00a0 \u00a0 \u00a0 \u00a0 while (panel) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u6267\u884c\u67e5\u8be2
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 time_t now = time(NULL);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 time_t start = now – 3600;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 query_target_t *target = panel->targets;
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (target) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 query_result_t *result = dm_query(dm, panel->datasource,
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0target->query, start, now);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (result) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (panel->type == PANEL_GRAPH) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 render_graph_html(panel, result, fp);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 } else if (panel->type == PANEL_STAT) {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 render_stat_html(panel, result, fp);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 } else {
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 render_graph_html(panel, result, fp);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 free_query_result(result);
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 panel = panel->next;
\n\u00a0 \u00a0 \u00a0 \u00a0 }
\n\u00a0 \u00a0 \u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 fprintf(fp, "<\/div>\\\\n");
\n\u00a0 \u00a0 \u00a0 \u00a0 row = row->next;
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 fprintf(fp, "<\/div>\\\\n");
\n\u00a0 \u00a0 fprintf(fp, "<\/body><\/html>\\\\n");
\n}
\n```<\/p>\n
6. \u6d4b\u8bd5\u4ee3\u7801<\/p>\n
```c
\nvoid test_grafana() {
\n\u00a0 \u00a0 printf("=== Grafana\u6d4b\u8bd5 ===\\\\n\\\\n");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 dashboard_manager_t *dm = dm_create();
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u6dfb\u52a0\u6570\u636e\u6e90
\n\u00a0 \u00a0 dm_add_datasource(dm, "Prometheus", DS_PROMETHEUS, "http:\/\/localhost:9090");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u521b\u5efaDashboard
\n\u00a0 \u00a0 dashboard_t *db = dm_create_dashboard(dm, "\u5fae\u670d\u52a1\u76d1\u63a7");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u6dfb\u52a0Row
\n\u00a0 \u00a0 dashboard_row_t *row1 = dm_add_row(db, "\u670d\u52a1\u6307\u6807");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u6dfb\u52a0Panel
\n\u00a0 \u00a0 panel_t *p1 = dm_add_panel(row1, "CPU\u4f7f\u7528\u7387", PANEL_GRAPH, "Prometheus", 8, 4);
\n\u00a0 \u00a0 dm_add_target(p1, "A", "cpu_usage{service=\\\\"user-service\\\\"}");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 panel_t *p2 = dm_add_panel(row1, "\u5185\u5b58\u4f7f\u7528", PANEL_GRAPH, "Prometheus", 4, 4);
\n\u00a0 \u00a0 dm_add_target(p2, "A", "memory_usage_mb{service=\\\\"user-service\\\\"}");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 panel_t *p3 = dm_add_panel(row1, "\u5f53\u524d\u8bf7\u6c42\u91cf", PANEL_STAT, "Prometheus", 3, 2);
\n\u00a0 \u00a0 dm_add_target(p3, "A", "http_requests_total{service=\\\\"user-service\\\\"}");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 dashboard_row_t *row2 = dm_add_row(db, "\u4e1a\u52a1\u6307\u6807");
\n\u00a0 \u00a0 panel_t *p4 = dm_add_panel(row2, "\u8ba2\u5355\u6210\u529f\u7387", PANEL_GRAPH, "Prometheus", 6, 3);
\n\u00a0 \u00a0 dm_add_target(p4, "A", "order_success_rate");
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 \/\/ \u751f\u6210HTML
\n\u00a0 \u00a0 char filename[256];
\n\u00a0 \u00a0 snprintf(filename, sizeof(filename), "grafana_%s.html", db->uid);
\n\u00a0 \u00a0 FILE *fp = fopen(filename, "w");
\n\u00a0 \u00a0 if (fp) {
\n\u00a0 \u00a0 \u00a0 \u00a0 dm_render_dashboard_html(dm, db->uid, fp);
\n\u00a0 \u00a0 \u00a0 \u00a0 fclose(fp);
\n\u00a0 \u00a0 \u00a0 \u00a0 printf("\\\\n\u4eea\u8868\u76d8\u5df2\u751f\u6210: %s\\\\n", filename);
\n\u00a0 \u00a0 \u00a0 \u00a0 printf("\u6253\u5f00\u6d4f\u89c8\u5668\u67e5\u770b: file:\/\/%s\\\\n", filename);
\n\u00a0 \u00a0 }
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 printf("\\\\nDashboard\u4fe1\u606f:\\\\n");
\n\u00a0 \u00a0 printf(" \u00a0\u6807\u9898: %s\\\\n", db->title);
\n\u00a0 \u00a0 printf(" \u00a0UID: %s\\\\n", db->uid);
\n\u00a0 \u00a0 printf(" \u00a0Rows: %d\\\\n", db->row_count);
\n\u00a0 \u00a0 printf(" \u00a0Panels: %d\\\\n",\u00a0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0db->rows->panel_count + (db->rows->next ? db->rows->next->panel_count : 0));
\n\u00a0 \u00a0\u00a0
\n\u00a0 \u00a0 free(dm);
\n}<\/p>\n
int main() {
\n\u00a0 \u00a0 srand(time(NULL));
\n\u00a0 \u00a0 test_grafana();
\n\u00a0 \u00a0 return 0;
\n}
\n```<\/p>\n
—<\/p>\n
\u4e09\u3001\u7f16\u8bd1\u548c\u8fd0\u884c<\/p>\n
```bash
\ngcc -o grafana grafana.c -lpthread -lm
\n.\/grafana
\n```<\/p>\n
—<\/p>\n
\u56db\u3001Grafana vs \u672c\u5b9e\u73b0<\/p>\n
\u7279\u6027 \u672c\u5b9e\u73b0 Grafana
\n\u6570\u636e\u6e90 \u2705 Prometheus \u2705 \u591a\u79cd
\nDashboard \u2705 \u2705
\nPanel \u2705 \u57fa\u7840 \u2705 \u4e30\u5bcc
\n\u67e5\u8be2\u7f16\u8f91\u5668 \u2705 \u57fa\u7840 \u2705 \u9ad8\u7ea7
\n\u6a21\u677f\u53d8\u91cf \u274c \u2705
\n\u544a\u8b66 \u274c \u2705
\n\u6743\u9650\u7ba1\u7406 \u274c \u2705<\/p>\n
—<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/p>\n
\u901a\u8fc7\u8fd9\u7bc7\u6587\u7ae0，\u4f60\u5b66\u4f1a\u4e86：<\/p>\n
\u00b7 Grafana\u7684\u6838\u5fc3\u67b6\u6784
\n\u00b7 \u6570\u636e\u6e90\u7ba1\u7406
\n\u00b7 Dashboard\u914d\u7f6e
\n\u00b7 Panel\u6e32\u67d3（Graph\/Stat）
\n\u00b7 \u67e5\u8be2\u6267\u884c
\n\u00b7 HTML\u4eea\u8868\u76d8\u751f\u6210<\/p>\n
Grafana\u662f\u4e91\u539f\u751f\u76d1\u63a7\u7684\u53ef\u89c6\u5316\u6807\u51c6\u3002\u638c\u63e1\u5b83，\u4f60\u5c31\u7406\u89e3\u4e86\u76d1\u63a7\u6570\u636e\u53ef\u89c6\u5316\u7684\u6838\u5fc3\u8bbe\u8ba1\u3002<\/p>\n
\u4e0b\u4e00\u7bc7\u9884\u544a：\u300a\u4ece\u96f6\u5b9e\u73b0\u4e00\u4e2a\u5206\u5e03\u5f0f\u544a\u8b66：Alertmanager\u7684\u6838\u5fc3\u8bbe\u8ba1\u300b<\/p>\n
—<\/p>\n
\u8bc4\u8bba\u533a\u5206\u4eab\u4e00\u4e0b\u4f60\u7528Grafana\u505a\u8fc7\u4ec0\u4e48Dashboard～<\/p>\n","protected":false},"excerpt":{"rendered":"
\u524d\u8a00\u4e0a\u4e00\u7bc7\u6587\u7ae0\u6211\u4eec\u5b9e\u73b0\u4e86Prometheus\u76d1\u63a7\u7cfb\u7edf，\u4f46Prometheus\u53ea\u8d1f\u8d23\u91c7\u96c6\u548c\u5b58\u50a8\u6570\u636e，\u600e\u4e48\u628a\u6570\u636e\u53d8\u6210\u6f02\u4eae\u7684\u56fe\u8868\u548cDashboard\u5462？Grafana\u662f\u4e91\u539f\u751f\u76d1\u63a7\u7684\u53ef\u89c6\u5316\u5c42，\u652f\u6301\u591a\u79cd\u6570\u636e\u6e90\u3001\u4e30\u5bcc\u7684\u56fe\u8868\u7c7b\u578b\u548c\u7075\u6d3b\u7684Dashboard\u914d\u7f6e\u3002\u4eca\u5929\u6211\u4eec\u4ece\u96f6\u5b9e\u73b0\u4e00\u4e2aGrafana\u7684\u6838\u5fc3\u529f\u80fd：\u00b7 \u6570\u636e\u6e90\u7ba1\u7406（Prometheus\u6a21\u62df）
\n\u00b7 Dashboard\u914d\u7f6e
\n\u00b7 \u56fe\u8868\u6e32\u67d3&#x<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55],"topic":[],"class_list":["post-83609","post","type-post","status-publish","format-standard","hentry","category-server","tag-c"],"yoast_head":"\n