96 lines
1.9 KiB
Go
96 lines
1.9 KiB
Go
package storage
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import (
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"context"
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"fmt"
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"log"
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"os"
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"github.com/ClickHouse/clickhouse-go/v2"
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"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
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)
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var Connection driver.Conn
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func Connect() error {
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conn, err := connect()
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if err != nil {
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return err
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}
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Connection = *conn
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return nil
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}
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func Close() {
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Connection.Close()
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}
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func connect() (*driver.Conn, error) {
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var (
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ctx = context.Background()
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conn, err = clickhouse.Open(&clickhouse.Options{
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Addr: []string{"clickhouse:9000"},
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Auth: clickhouse.Auth{
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Database: "monitoring",
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Username: "default",
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Password: os.Getenv("CLICKHOUSE_PASSWORD"),
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},
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TLS: nil,
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})
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)
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if err != nil {
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return nil, err
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}
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if err := conn.Ping(ctx); err != nil {
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if exception, ok := err.(*clickhouse.Exception); ok {
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fmt.Printf("Exception [%d] %s \n%s\n", exception.Code, exception.Message, exception.StackTrace)
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}
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return nil, err
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}
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return &conn, nil
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}
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func Migrate() error {
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err := Connection.Exec(
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context.TODO(),
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`CREATE TABLE IF NOT EXISTS endpoints (
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timestamp DateTime,
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service LowCardinality(String),
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environment LowCardinality(String),
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endpoint LowCardinality(String),
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status_code UInt16,
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response_time_ms UInt32,
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method LowCardinality(String)
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)
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ENGINE = MergeTree
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PARTITION BY toYYYYMM(timestamp)
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ORDER BY (service, environment, endpoint, request_method, timestamp);`,
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)
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if err != nil {
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log.Fatal(err)
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return err
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}
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err = Connection.Exec(
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context.TODO(),
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`CREATE TABLE IF NOT EXISTS tasks (
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timestamp DateTime,
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service LowCardinality(String),
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environment LowCardinality(String),
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queue LowCardinality(String),
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success Bool,
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execution_time_ms UInt32
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)
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ENGINE = MergeTree
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PARTITION BY toYYYYMM(timestamp)
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ORDER BY (service, environment, queue, timestamp);`,
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)
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if err != nil {
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log.Fatal(err)
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return err
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}
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return nil
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}
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