Install Shadowsocks + V2ray + TLS + CDN on Ubuntu

Install required Ubuntu packages

apt update
apt install -y --no-install-recommends gettext build-essential autoconf libtool libpcre3-dev asciidoc xmlto libev-dev libc-ares-dev automake libssl-dev gawk debhelper dh-systemd init-system-helpers pkg-config apg zlib1g-dev libudns-dev libsodium-dev libmbedtls-dev haveged

Install Certbot

sudo snap install core; sudo snap refresh core
sudo snap install --classic certbot
sudo ln -s /snap/bin/certbot /usr/bin/certbot
sudo certbot certonly --standalone

result

# Certificate is saved at: /etc/letsencrypt/live/example.com/fullchain.pem
# Key is saved at:         /etc/letsencrypt/live/example.com/privkey.pem

Download shadowsocks-rust

wget https://github.com/shadowsocks/shadowsocks-rust/releases/download/v1.15.3/shadowsocks-v1.15.3.x86_64-unknown-linux-gnu.tar.xz
tar -xf shadowsocks-v1.15.3.x86_64-unknown-linux-gnu.tar.xz

Or download latest version here https://github.com/shadowsocks/shadowsocks-rust

Download v2ray-plugin

wget https://github.com/shadowsocks/v2ray-plugin/releases/download/v1.3.2/v2ray-plugin-linux-amd64-v1.3.2.tar.gz
tar -xzvf v2ray-plugin-linux-amd64-v1.3.2.tar.gz

Or download latest version here https://github.com/shadowsocks/v2ray-plugin

Prepare files

mv sslocal ssserver ssurl ssmanager ssservice v2ray-plugin_linux_amd64 /usr/local/bin/

mkdir -p /etc/shadowsocks
touch /etc/shadowsocks/config.json
nano /etc/shadowsocks/config.json

{
    "server":"0.0.0.0",
    "server_port":443,
    "password":"password",
    "mode":"tcp_only",
    "timeout":300,
    "method":"chacha20-ietf-poly1305",
    "plugin":"v2ray-plugin_linux_amd64",
    "plugin_opts":"server;tls;cert=/etc/letsencrypt/live/example.com/fullchain.pem;key=/etc/letsencrypt/live/example.com/privkey.pem;host=example.com;path=/;loglevel=none",
    "nameserver":"1.1.1.1"
}

Systemd service

touch /lib/systemd/system/shadowsocks.service
nano /lib/systemd/system/shadowsocks.service

[Unit]
Description=Shadowsocks Server Service
After=network.target
[Service]
ExecStart=/usr/local/bin/ssserver -c /etc/shadowsocks/config.json
ExecReload=/bin/kill -HUP \$MAINPID
Restart=on-failure
[Install]
WantedBy=multi-user.target

systemctl enable shadowsocks.service
systemctl start shadowsocks.service

journalctl -u shadowsocks.service -f

References
https://github.com/M3chD09/shadowsocks-with-v2ray-plugin-install