run docker daemon manually in CI environment

docker.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"time"
 	"context"
+	"os"
     "github.com/docker/docker/api/types/container"
     "github.com/docker/docker/client"
 	"github.com/docker/go-connections/nat"
@@ -19,6 +20,14 @@ func dockerPullMongo() {
 	ExecSystem("docker pull mongo")
 }
 
+func checkDockerExistence() {
+	filePath := "/var/run/docker.sock"
+
+    _, err := os.Stat(filePath)
+    if os.IsNotExist(err) {
+        ExecSystem("dockerd &")
+    }
+}
 func dockerRunMongo() {
 
 	cli, err := client.NewClientWithOpts(client.FromEnv)

main.go

@@ -87,6 +87,7 @@ func main() {
 	checkSettings()
 	instDeps()
 	genKeys()
+	checkDockerExistence()
 	dockerNetworkCreate()
 	dockerPullMongo()
 	dockerRunMongo()