Packer SSH communicator ssh_port argument value is ignored

[mschuchard]

Overview of the Issue

When specifying a value for the argument ssh_port, the argument value is ignored, and instead the port is chosen from the range specified by host_port_min and host_port_max is selected. I have repeated this multiple times to verify the behavior.

Reproduction Steps

packer build

Plugin and Packer version

1.8.3 and 1.0.4

Simplified Packer Buildfile

source "virtualbox-vm" "ubuntu" {
  ssh_host = "127.0.0.1"
  ssh_port = "2222"
}

Operating system and Environment details

n/a

Log Fragments and crash.log files

2022/09/08 15:19:29 packer-plugin-virtualbox_v1.0.4_x5.0_linux_amd64 plugin: 2022/09/08 15:19:29 [INFO] Attempting SSH connection to 127.0.0.1:3171...
2022/09/08 15:19:29 packer-plugin-virtualbox_v1.0.4_x5.0_linux_amd64 plugin: 2022/09/08 15:19:29 [DEBUG] reconnecting to TCP connection for SSH
2022/09/08 15:19:29 packer-plugin-virtualbox_v1.0.4_x5.0_linux_amd64 plugin: 2022/09/08 15:19:29 [DEBUG] handshaking with SSH
2022/09/08 15:19:29 packer-plugin-virtualbox_v1.0.4_x5.0_linux_amd64 plugin: 2022/09/08 15:19:29 [DEBUG] SSH handshake err: ssh: handshake failed: read tcp 127.0.0.1:42718->127.0.0.1:3171: read: connection reset by peer

[mschuchard]

Also noticing that setting ssh_password or ssh_certificate_file argument values results in authentication method [none] during ssh communicator attempts, so this could be multiple ssh communicator arguments.