我有一个Gitlab Runner，它使用docker-machine执行器来按需启动AWS EC2示例。
这是我的配置文件：

concurrent = 10
check_interval = 30

[[runners]]
  name = "gitlab-runner-manager"
  limit = 3
  url = "https://git.domain.com"
  id = 18
  token = "12dcfvgbhnjfcvgbhjnk-9w2"
  token_obtained_at = 2023-01-12T06:08:06Z
  token_expires_at = 0001-01-01T00:00:00Z
  executor = "docker+machine"
  [runners.cache]
    Type = "s3"
    Shared = true
    MaxUploadedArchiveSize = 0
    [runners.cache.s3]
      ServerAddress = "s3.amazonaws.com"
      BucketName = "domain-gitlab-runner-manager-cache"
      BucketLocation = "us-east-1"
  [runners.docker]
    tls_verify = false
    image = "alpine"
    privileged = true
    disable_entrypoint_overwrite = false
    oom_kill_disable = false
    disable_cache = true
    shm_size = 0
  [runners.machine]
    IdleCount = 1
    IdleScaleFactor = 0.0
    IdleCountMin = 0
    IdleTime = 1800
    MachineDriver = "amazonec2"
    MachineName = "gitlab-runner-autoscale-%s"
    MachineOptions = [
      "amazonec2-region=us-east-1",
      "amazonec2-vpc-id=vpc-123",
      "amazonec2-subnet-id=subnet-123",
      "amazonec2-iam-instance-profile=gitlab-manager-instance-profile",
      "amazonec2-request-spot-instance=true",
      "amazonec2-spot-price=0.50",
      "amazonec2-use-private-address=true",
      "amazonec2-private-address-only=true",
      "amazonec2-tags=product,gitlab-runner,environment,shared",
      "amazonec2-security-group=gitlab-runner-manager-sg",
      "amazonec2-instance-type=t3.large",
      "amazonec2-root-size=100",
    ]
  [[runners.machine.autoscaling]]
    Periods = ["* * 1-17 * * mon-fri *"]
    IdleCount = 1
    IdleTime = 3600
    Timezone = "UTC"
  [[runners.machine.autoscaling]]
    Periods = ["* * * * * sat,sun *"]
    IdleCount = 0
    IdleTime = 3600
    Timezone = "UTC"

我的服务器最近开始出错，日志中出现以下片段：

Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: Error creating machine: Error running provisioning: Error running "sudo apt-get update": ssh command error:  driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create
Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: command : sudo apt-get update                driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create
Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: err     : exit status 100                    driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create
Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: output  : Get:1 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]  driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create
Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: Reading package lists...                     driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create
Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: W: GPG error: http://archive.ubuntu.com/ubuntu focal InRelease: Splitting up /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_focal_InRelease into data and signature failed  driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create
Feb 14 08:25:21 ip-10-10-0-251.ec2.internal gitlab-runner[2138]: ERROR: E: The repository 'http://archive.ubuntu.com/ubuntu focal InRelease' is not signed.  driver=amazonec2 name=runner-nxw1xfxl-gitlab-runner-autoscale-1676363082-24ebaeda operation=create

错误消息非常简单，而当EC2示例启动时，sudo apt-get update会失败。
我现在的问题是-我如何签署它才能工作？我甚至不明白这个签署是什么tbh。
PS：我不确定Gitlab runner部分是否与这个问题相关，但我想我会分享我如何旋转AWS EC2示例。