How to Setup wifi on Ubuntu-server 20.04

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Environment

  Device : ONDA V80Plus

             CPU: Intel Z3800

             RAM : 2G

             WiFi Interface : wlan0

  OS : Ubuntu-Server 20.04

  Host : test(192.168.101.99/24)

  AP

     SSID : test

     PW : testtest

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1. Install WPA

$ sudo apt install wpasupplicant -y

2. Generate WiFi Setting

$ sudo cp /usr/share/doc/netplan/examples/wireless.yaml /etc/netplan/99_config.yaml

$ sudo nano /etc/netplan/99_config.yaml

Change Configuration

network:
  version: 2
  renderer: networkd
  wifis:
    wlp2s0b1:
      dhcp4: no
      dhcp6: no
      addresses: [192.168.0.21/24]
      gateway4: 192.168.0.1
      nameservers:
        addresses: [192.168.0.1, 8.8.8.8]
      access-points:
        "network_ssid_name":
          password: "**********"
=>
network:
  version: 2
  renderer: networkd
  wifis:
    wlan0:
      dhcp4: no
      dhcp6: no
      addresses: [192.168.101.99/24]
      gateway4: 192.168.101.1
      nameservers:
        addresses: [192.168.0.210, 8.8.8.8]
      access-points:
        "test":
          password: "testtest"

$ sudo netplan apply