| package database |
|
|
| import ( |
| "encoding/json" |
| "fmt" |
| "strings" |
| ) |
|
|
| func (db *DB) InitContainerMetricsTable() error { |
| _, err := db.Exec(` |
| CREATE TABLE IF NOT EXISTS container_metrics ( |
| id INTEGER PRIMARY KEY AUTOINCREMENT, |
| timestamp TEXT NOT NULL, |
| container_id TEXT NOT NULL, |
| container_name TEXT NOT NULL, |
| metrics_json TEXT NOT NULL |
| ) |
| `) |
| if err != nil { |
| return fmt.Errorf("error creating container_metrics table: %v", err) |
| } |
|
|
| |
| _, err = db.Exec(`CREATE INDEX IF NOT EXISTS idx_container_metrics_timestamp ON container_metrics(timestamp)`) |
| if err != nil { |
| return fmt.Errorf("error creating timestamp index: %v", err) |
| } |
|
|
| _, err = db.Exec(`CREATE INDEX IF NOT EXISTS idx_container_metrics_name ON container_metrics(container_name)`) |
| if err != nil { |
| return fmt.Errorf("error creating name index: %v", err) |
| } |
|
|
| return nil |
| } |
|
|
| func (db *DB) SaveContainerMetric(metric *ContainerMetric) error { |
| metricsJSON, err := json.Marshal(metric) |
| if err != nil { |
| return fmt.Errorf("error marshaling metrics: %v", err) |
| } |
|
|
| _, err = db.Exec(` |
| INSERT INTO container_metrics (timestamp, container_id, container_name, metrics_json) |
| VALUES (?, ?, ?, ?) |
| `, metric.Timestamp, metric.ID, metric.Name, string(metricsJSON)) |
| return err |
| } |
|
|
| func (db *DB) GetLastNContainerMetrics(containerName string, limit int) ([]ContainerMetric, error) { |
| name := strings.TrimPrefix(containerName, "/") |
| parts := strings.Split(name, "-") |
| if len(parts) > 1 { |
| containerName = strings.Join(parts[:len(parts)-1], "-") |
| } |
|
|
| query := ` |
| WITH recent_metrics AS ( |
| SELECT metrics_json |
| FROM container_metrics |
| WHERE container_name LIKE ? || '%' |
| ORDER BY timestamp DESC |
| LIMIT ? |
| ) |
| SELECT metrics_json FROM recent_metrics ORDER BY json_extract(metrics_json, '$.timestamp') ASC |
| ` |
| rows, err := db.Query(query, containerName, limit) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
|
|
| var metrics []ContainerMetric |
| for rows.Next() { |
| var metricsJSON string |
| err := rows.Scan(&metricsJSON) |
| if err != nil { |
| return nil, err |
| } |
|
|
| var metric ContainerMetric |
| if err := json.Unmarshal([]byte(metricsJSON), &metric); err != nil { |
| return nil, err |
| } |
| metrics = append(metrics, metric) |
| } |
| return metrics, nil |
| } |
|
|
| func (db *DB) GetAllMetricsContainer(containerName string) ([]ContainerMetric, error) { |
| name := strings.TrimPrefix(containerName, "/") |
| parts := strings.Split(name, "-") |
| if len(parts) > 1 { |
| containerName = strings.Join(parts[:len(parts)-1], "-") |
| } |
|
|
| query := ` |
| WITH recent_metrics AS ( |
| SELECT metrics_json |
| FROM container_metrics |
| WHERE container_name LIKE ? || '%' |
| ORDER BY timestamp DESC |
| ) |
| SELECT metrics_json FROM recent_metrics ORDER BY json_extract(metrics_json, '$.timestamp') ASC |
| ` |
| rows, err := db.Query(query, containerName) |
| if err != nil { |
| return nil, err |
| } |
| defer rows.Close() |
|
|
| var metrics []ContainerMetric |
| for rows.Next() { |
| var metricsJSON string |
| err := rows.Scan(&metricsJSON) |
| if err != nil { |
| return nil, err |
| } |
|
|
| var metric ContainerMetric |
| if err := json.Unmarshal([]byte(metricsJSON), &metric); err != nil { |
| return nil, err |
| } |
| metrics = append(metrics, metric) |
| } |
| return metrics, nil |
| } |
|
|
| type ContainerMetric struct { |
| Timestamp string `json:"timestamp"` |
| CPU float64 `json:"CPU"` |
| Memory MemoryMetric `json:"Memory"` |
| Network NetworkMetric `json:"Network"` |
| BlockIO BlockIOMetric `json:"BlockIO"` |
| Container string `json:"Container"` |
| ID string `json:"ID"` |
| Name string `json:"Name"` |
| } |
|
|
| type MemoryMetric struct { |
| Percentage float64 `json:"percentage"` |
| Used float64 `json:"used"` |
| Total float64 `json:"total"` |
| UsedUnit string `json:"usedUnit"` |
| TotalUnit string `json:"totalUnit"` |
| } |
|
|
| type NetworkMetric struct { |
| Input float64 `json:"input"` |
| Output float64 `json:"output"` |
| InputUnit string `json:"inputUnit"` |
| OutputUnit string `json:"outputUnit"` |
| } |
|
|
| type BlockIOMetric struct { |
| Read float64 `json:"read"` |
| Write float64 `json:"write"` |
| ReadUnit string `json:"readUnit"` |
| WriteUnit string `json:"writeUnit"` |
| } |
|
|
