Too many authentication failures

[anish-dcruz]

Hi All,

I was trying to setup k8s with below terraform config

module "kube-hetzner" {
  source  = "kube-hetzner/kube-hetzner/hcloud"
  version = "1.0.1"

  hcloud_token = ""
  public_key = ""
  private_key = ""

  network_region = "eu-central" # change to `us-east` if location is ash

  control_plane_nodepools = [
    {
      name        = "control-plane-nbg1",
      server_type = "cpx11",
      location    = "nbg1",
      labels      = [],
      taints      = [],
      count       = 1
    },
  ]

  agent_nodepools = [
    {
      name        = "agent-small",
      server_type = "cpx11",
      location    = "nbg1",
      labels      = [],
      taints      = [],
      count       = 1
    },
  ]

  load_balancer_type     = "lb11"
  load_balancer_location = "nbg1"
}

And this output was being run for 10 minutes

module.kube-hetzner.module.agents["0-0-agent-small"].hcloud_server.server (local-exec): Waiting for MicroOS to reboot and become available...
module.kube-hetzner.module.control_planes["0-0-control-plane-nbg1"].hcloud_server.server (local-exec): Waiting for MicroOS to reboot and become available...
module.kube-hetzner.module.agents["0-0-agent-small"].hcloud_server.server (local-exec): Waiting for MicroOS to reboot and become available...
module.kube-hetzner.module.control_planes["0-0-control-plane-nbg1"].hcloud_server.server (local-exec): Waiting for MicroOS to reboot and become available...
module.kube-hetzner.module.agents["0-0-agent-small"].hcloud_server.server (local-exec): Waiting for MicroOS to reboot and become available...
module.kube-hetzner.module.control_planes["0-0-control-plane-nbg1"].hcloud_server.server (local-exec): Waiting for MicroOS to reboot and become available...
module.kube-hetzner.module.agents["0-0-agent-small"].hcloud_server.server: Still creating... [10m30s elapsed]

So i tried ssh into one of the server and got this error

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ED25519 key sent by the remote host is
SHA256:5d4z2h15BJX23L6mJ+UnxtA2v22uKmxTHoRpS34uV3g.
Please contact your system administrator.
Add correct host key in /Users/anishdcruz/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/anishdcruz/.ssh/known_hosts:62
Password authentication is disabled to avoid man-in-the-middle attacks.
Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
UpdateHostkeys is disabled because the host key is not trusted.
Received disconnect from <ip> port 22:2: Too many authentication failures
Disconnected from <ip> port 22

Can somone tell me if this is due my internet ip or related to terraform?

Thanks

[mysticaltech]

@anish-dcruz This is due to the type of SSH key pair that you use! You need to destroy your cluster. Change to the correct type of SSH key pair, and create the cluster again! It will work.

See https://github.com/kube-hetzner/terraform-hcloud-kube-hetzner/blob/master/docs/ssh.md.