cmd: take configuration as a mandatory argument (+ other changes)

The other changes are:
 - rename configure service to orchestrator service
 - turn DefaultConfiguration variables into functions

orchestrator/clickhouse/functional_test.go

@@ -0,0 +1,97 @@
+package clickhouse
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/ClickHouse/clickhouse-go/v2"
+
+	"akvorado/common/daemon"
+	"akvorado/common/helpers"
+	"akvorado/common/http"
+	"akvorado/common/reporter"
+)
+
+func TestRealClickHouse(t *testing.T) {
+	chServer := helpers.CheckExternalService(t, "ClickHouse", []string{"clickhouse", "localhost"}, "9000")
+
+	configuration := DefaultConfiguration()
+	configuration.Servers = []string{chServer}
+	r := reporter.NewMock(t)
+	ch, err := New(r, configuration, Dependencies{
+		Daemon: daemon.NewMock(t),
+		HTTP:   http.NewMock(t, r),
+	})
+	if err != nil {
+		t.Fatalf("New() error:\n%+v", err)
+	}
+	if err := ch.Start(); err != nil {
+		t.Fatalf("Start() error:\n%+v", err)
+	}
+	select {
+	case <-ch.migrationsDone:
+	case <-time.After(3 * time.Second):
+		t.Fatalf("Migrations not done")
+	}
+
+	// Check with the ClickHouse client we have our tables
+	conn := clickhouse.OpenDB(&clickhouse.Options{
+		Addr: []string{chServer},
+		Auth: clickhouse.Auth{
+			Database: ch.config.Database,
+			Username: ch.config.Username,
+			Password: ch.config.Password,
+		},
+		DialTimeout: 100 * time.Millisecond,
+	})
+	if err := conn.Ping(); err != nil {
+		t.Fatalf("Ping() error:\n%+v", err)
+	}
+	rows, err := conn.Query("SHOW TABLES")
+	if err != nil {
+		t.Fatalf("Query() error:\n%+v", err)
+	}
+	got := []string{}
+	for rows.Next() {
+		var table string
+		if err := rows.Scan(&table); err != nil {
+			t.Fatalf("Scan() error:\n%+v", err)
+		}
+		if !strings.HasPrefix(table, ".") {
+			got = append(got, table)
+		}
+	}
+	expected := []string{
+		"asns",
+		"exporters",
+		"flows",
+		"flows_1_raw",
+		"flows_1_raw_consumer",
+		"protocols",
+	}
+	if diff := helpers.Diff(got, expected); diff != "" {
+		t.Fatalf("SHOW TABLES (-got, +want):\n%s", diff)
+	}
+	if err := ch.Stop(); err != nil {
+		t.Fatalf("Stop() error:\n%+v", err)
+	}
+
+	// Check we can run a second time
+	ch, err = New(r, configuration, Dependencies{
+		Daemon: daemon.NewMock(t),
+		HTTP:   http.NewMock(t, r),
+	})
+	if err != nil {
+		t.Fatalf("New() error:\n%+v", err)
+	}
+	if err := ch.Start(); err != nil {
+		t.Fatalf("Start() error:\n%+v", err)
+	}
+	select {
+	case <-ch.migrationsDone:
+	case <-time.After(3 * time.Second):
+		t.Fatalf("Migrations not done")
+	}
+	ch.Stop()
+}