ZIMkaRU · January 11, 2022 08:16 · Jun 21, 2018 · Jun 21, 2018 · Jun 21, 2018
diff --git a/README.md b/README.md
@@ -9,6 +9,7 @@ This gist offers a way to build a NGINX ‘dynamic module’ against the
 widely used “nginx:alpine” docker image. Simply copy this Dockerfile &
 replace the arguments of the “wget” & “tar” & “configure” commands to
 include the module you want to build, then adjust the COPY command
-copying the module (.so file).
+copying the module (.so file). In this example the NCHAN module is used
+as an example.
 
 If you found this helpful, please leave a comment / reaction here! :love:
diff --git a/Dockerfile b/Dockerfile
@@ -0,0 +1,46 @@
+FROM nginx:alpine AS builder
+
+# nginx:alpine contains NGINX_VERSION environment variable, like so:
+# ENV NGINX_VERSION 1.15.0
+
+# Our NCHAN version
+ENV NCHAN_VERSION 1.1.15
+
+# Download sources
+RUN wget "http://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz" -O nginx.tar.gz && \
+  wget "https://github.com/slact/nchan/archive/v${NCHAN_VERSION}.tar.gz" -O nchan.tar.gz
+
+# For latest build deps, see https://github.com/nginxinc/docker-nginx/blob/master/mainline/alpine/Dockerfile
+RUN apk add --no-cache --virtual .build-deps \
+  gcc \
+  libc-dev \
+  make \
+  openssl-dev \
+  pcre-dev \
+  zlib-dev \
+  linux-headers \
+  curl \
+  gnupg \
+  libxslt-dev \
+  gd-dev \
+  geoip-dev
+
+# Reuse same cli arguments as the nginx:alpine image used to build
+RUN CONFARGS=$(nginx -V 2>&1 | sed -n -e 's/^.*arguments: //p') \
+	tar -zxC /usr/src -f nginx.tar.gz && \
+  tar -xzvf "nchan.tar.gz" && \
+  NCHANDIR="$(pwd)/nchan-${NCHAN_VERSION}" && \
+  cd /usr/src/nginx-$NGINX_VERSION && \
+  ./configure --with-compat $CONFARGS --add-dynamic-module=$NCHANDIR && \
+  make && make install
+
+FROM nginx:alpine
+# Extract the dynamic module NCHAN from the builder image
+COPY --from=builder /usr/local/nginx/modules/ngx_nchan_module.so /usr/local/nginx/modules/ngx_nchan_module.so
+RUN rm /etc/nginx/conf.d/default.conf
+
+COPY nginx.conf /etc/nginx/nginx.conf
+COPY default.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+STOPSIGNAL SIGTERM
+CMD ["nginx", "-g", "daemon off;"]
diff --git a/README.md b/README.md
@@ -0,0 +1,14 @@
+# Compiling NGINX module as dynamic module for use in docker
+
+NGINX offers some very convenient Docker containers, but it is not
+documented how to extend the functionality of those containers without
+re-compiling NGINX yourself and continuously adapting your Dockerfile
+to match the ones in https://github.com/nginxinc/docker-nginx/.
+
+This gist offers a way to build a NGINX ‘dynamic module’ against the
+widely used “nginx:alpine” docker image. Simply copy this Dockerfile &
+replace the arguments of the “wget” & “tar” & “configure” commands to
+include the module you want to build, then adjust the COPY command
+copying the module (.so file).
+
+If you found this helpful, please leave a comment / reaction here! :love:
diff --git a/nginx.conf b/nginx.conf
@@ -0,0 +1,31 @@
+# Addition: load NCHAN
+load_module /usr/local/nginx/modules/ngx_nchan_module.so;
+
+user  nginx;
+worker_processes  5; # Addition: ultiple workers for NCHAN
+error_log  /var/log/nginx/error.log warn;
+pid        /var/run/nginx.pid;
+
+events {
+    worker_connections  1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+
+    access_log  /var/log/nginx/access.log  main;
+
+    sendfile        on;
+    #tcp_nopush     on;
+
+    keepalive_timeout  65;
+
+    #gzip  on;
+
+    include /etc/nginx/conf.d/*.conf;
+}
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