首先

使用公式存储库在Ubuntu 18.04上安装最新版本的Nginx mainline。
参考：Nginx各种安装方法和EOL总结的相关文章。

支持

如果使用了这种方法，我们认为将会得到支持，直至nginx的开发停止。
如果不指定特定版本，我们认为将始终提供最新的mainline版本。

日志

提交储存库注册

# apt update; apt install -y curl gnupg2 ca-certificates lsb-release
# echo "deb http://nginx.org/packages/mainline/ubuntu `lsb_release -cs` nginx" | tee /etc/apt/sources.list.d/nginx.list
# curl -fsSL https://nginx.org/keys/nginx_signing.key | apt-key add -

# apt-key fingerprint ABF5BD827BD9BF62
pub   rsa2048 2011-08-19 [SC] [expires: 2024-06-14]
      573B FD6B 3D8F BC64 1079  A6AB ABF5 BD82 7BD9 BF62
uid           [ unknown] nginx signing key <signing-key@nginx.com>

安装

# cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.3 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.3 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

# apt update; apt install -y nginx
... 略

各种确认

# which nginx
/usr/sbin/nginx

# nginx -v
nginx version: nginx/1.17.4

# apt show nginx
Package: nginx
Version: 1.17.4-1~bionic
Priority: optional
Section: httpd
Maintainer: Sergey Budnevitch <sb@nginx.com>
Installed-Size: 2997 kB
Provides: httpd
Depends: libc6 (>= 2.27), libpcre3, libssl1.1 (>= 1.1.1), zlib1g (>= 1:1.1.4), lsb-base (>= 3.0-6), adduser
Conflicts: nginx-common, nginx-core
Replaces: nginx-common, nginx-core
Homepage: http://nginx.org
Download-Size: 854 kB
APT-Manual-Installed: yes
APT-Sources: http://nginx.org/packages/mainline/ubuntu bionic/nginx amd64 Packages
Description: high performance web server
 nginx [engine x] is an HTTP and reverse proxy server, as well as
 a mail proxy server.

N: There are 20 additional records. Please use the '-a' switch to see them.