nginx: configuration update

Restructure the main configuration file to simplify custom configuration:
* support inclusion of configuration fragments from subdirectories:
  - /etc/nginx/modules-enabled/*.conf
  - /etc/nginx/conf.d/*.conf
  - /etc/nginx/sites-enabled/*
* default site (port 80):
  - move into /etc/nginx/sites-available/default_server
    and enable via symlink in /etc/nginx/sites-enabled/
  - listen on IPv6
  - drop unneeded example fragments
* configure and enable gzip
* update TLS settings to drop SSLv3 and enable TLSv1.3 for some safer
  defaults
* update remaining bits to follow Debian standard configuration
  https://salsa.debian.org/nginx-team/nginx/blob/62a54a8ba66ee6cc1b4f8a33dab9a6f27a3fdac4/debian/conf/nginx.conf
* drop unneeded example configuration bits from /etc/nginx/*.default

These changes, in particular the configuration fragment
support allow to easily customise nginx based on individual
requirements.
In addition, it is now possible for other recipes / packages
to drop fragments into the respective directories in /etc/nginx
without having to meddle with /etc/nginx/nginx.conf

Signed-off-by: André Draszik <andre.draszik@jci.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/meta-webserver/recipes-httpd/nginx/nginx.inc b/meta-webserver/recipes-httpd/nginx/nginx.inc
index ea1c1f782a..522942504b 100644
--- a/meta-webserver/recipes-httpd/nginx/nginx.inc
+++ b/meta-webserver/recipes-httpd/nginx/nginx.inc
@@ -16,6 +16,7 @@ SRC_URI = " \
     file://nginx-cross.patch \
     file://0001-Allow-the-overriding-of-the-endianness-via-the-confi.patch \
     file://nginx.conf \
+    file://default_server.site \
     file://nginx.init \
     file://nginx-volatile.conf \
     file://nginx.service \
@@ -102,15 +103,28 @@ do_install () {
 
     install -d ${D}${sysconfdir}/nginx
     install -m 0644 ${WORKDIR}/nginx.conf ${D}${sysconfdir}/nginx/nginx.conf
+    sed -i 's,/etc/,${sysconfdir}/,g' ${D}${sysconfdir}/nginx/nginx.conf
     sed -i 's,/var/,${localstatedir}/,g' ${D}${sysconfdir}/nginx/nginx.conf
     sed -i 's/^user.*/user ${NGINX_USER};/g' ${D}${sysconfdir}/nginx/nginx.conf
+    install -Dm 0644 ${WORKDIR}/default_server.site ${D}${sysconfdir}/nginx/sites-available/default_server
+    sed -i 's,/var/,${localstatedir}/,g' ${D}${sysconfdir}/nginx/sites-available/default_server
     install -d ${D}${sysconfdir}/nginx/sites-enabled
+    ln -s ../sites-available/default_server ${D}${sysconfdir}/nginx/sites-enabled/
 
     install -d ${D}${sysconfdir}/default/volatiles
     install -m 0644 ${WORKDIR}/nginx-volatile.conf ${D}${sysconfdir}/default/volatiles/99_nginx
     sed -i 's,/var/,${localstatedir}/,g' ${D}${sysconfdir}/default/volatiles/99_nginx
     sed -i 's,@NGINX_USER@,${NGINX_USER},g' ${D}${sysconfdir}/default/volatiles/99_nginx
 
+    # cleanup configuration folder
+    rm ${D}${sysconfdir}/nginx/*.default
+
+    # add additional configuration folders
+    install -d ${D}${sysconfdir}/nginx/modules-available
+    install -d ${D}${sysconfdir}/nginx/modules-enabled
+    install -d ${D}${sysconfdir}/nginx/server-conf.d
+    install -d ${D}${sysconfdir}/nginx/conf.d
+
     if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)};then
         install -d ${D}${systemd_unitdir}/system
         install -m 0644 ${WORKDIR}/nginx.service ${D}${systemd_unitdir}/system/