olá estou tomando o erro abaixo quando tento rodar a api

[error] failed to initialize database, got error failed to connect to `host=postgres user=root database=root`: hostname resolving error (lookup postgres on 127.0.0.53:53: server misbehaving)
2025/03/17 23:42:59 Erro ao conectar com banco de dados
panic: Erro ao conectar com banco de dados

goroutine 1 [running]:
log.Panic({0xc0000e7ef8?, 0xc00007cd70?, 0xc00024a070?})
        /home/cynthia.tong/.asdf/installs/golang/1.23.2/go/src/log/log.go:432 +0x5a
github.com/tsaiyuen/curso-alura-api/database.ConectaComBancoDeDados()
        /home/cynthia.tong/golang/alura/api-rest/database/db.go:20 +0x13e
main.main()
        /home/cynthia.tong/golang/alura/api-rest/main.go:10 +0x17
exit status 2

Já troquei o localhost por posgres, ja reiniciei a maquina e tudo, e já alterei o codigo conforme ultimas orientações.

db.go

package database

import (
    "log"

    "github.com/tsaiyuen/curso-alura-api/models"
    "gorm.io/driver/postgres"
    "gorm.io/gorm"
)

var (
    DB  *gorm.DB
    err error
)

func ConectaComBancoDeDados() {
    stringDeConexao := "host=postgres user=root password=root dbname=root port=5432 sslmode=disable"
    DB, err = gorm.Open(postgres.Open(stringDeConexao), &gorm.Config{})
    if err != nil {
        log.Panic("Erro ao conectar com banco de dados")
    }
    DB.AutoMigrate(&models.Aluno{})
}

docker-compose.yml

version: '3'
services:
  postgres:
    image: "postgres"
    environment:
      - POSTGRES_USER=root
      - POSTGRES_PASSWORD=root
      - POSTGRES_DB=root      
    ports:
      - "5432:5432"
    volumes:
      - ./migration/docker-database-initial.sql:/docker-entrypoint-initdb.d/docker-database-initial.sql   

  pgadmin-compose:
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: "cyn@alura.com"
      PGADMIN_DEFAULT_PASSWORD: "123456"
    ports:
      - "54321:80"
    depends_on:
      - postgres