Build and install nchan as dynamic module on Ubuntu

[yellow1912]

Hello,

Please bear with me as I'm very new to this, so I will try to explain everything in details:

1. I tried to install the latest nginx from source (1.19.2) following this guide: https://devopscraft.com/how-to-compile-nginx-from-source-on-ubuntu-20-04/ (I use Ubuntu 20.04 LTS on my test server)

2. I tried to create the dynamic module for nchan following this guide: https://www.nginx.com/blog/compiling-dynamic-modules-nginx-plus/

My exact code for this step looks like this:

#!/bin/sh

NGINX_VERSION="1.19.2"
PCRE_VERSION="8.44"
ZLIB_VERSION="1.2.11"
OPENSSL_VERSION="1.1.1g"
NCHAN_VERSION="0.97"

curl https://codeload.github.com/slact/nchan/tar.gz/v${NCHAN_VERSION} | tar xz

wget https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz && tar zxvf nginx-${NGINX_VERSION}.tar.gz

# PCRE
wget https://ftp.pcre.org/pub/pcre/pcre-${PCRE_VERSION}.tar.gz && tar xzvf pcre-${PCRE_VERSION}.tar.gz
# zlib
wget https://www.zlib.net/zlib-${ZLIB_VERSION}.tar.gz && tar xzvf zlib-${ZLIB_VERSION}.tar.gz
# OpenSSL
wget https://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz && tar xzvf openssl-${OPENSSL_VERSION}.tar.gz

# Clean up all .tar.gz files
rm -rf *.tar.gz

cd nginx-${NGINX_VERSION}

sudo ./configure --with-compat \
--user=nginx \
--group=nginx \
--modules-path=/usr/lib/nginx/modules \
--conf-path=/etc/nginx/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--pid-path=/var/run/nginx.pid \
--with-pcre=../pcre-${PCRE_VERSION} \
--with-pcre-jit \
--with-zlib=../zlib-${ZLIB_VERSION} \
--with-openssl=../openssl-${OPENSSL_VERSION} \
--with-openssl-opt=no-nextprotoneg \
--with-debug
--add-dynamic-module=../nchan-${NCHAN_VERSION}

make
make modules

The output of the make modules looks like this;

make -f objs/Makefile modules
make[1]: Entering directory '/root/nginx-1.19.2'
make[1]: Nothing to be done for 'modules'.
make[1]: Leaving directory '/root/nginx-1.19.2'

Is there anything I do wrong here? I really want to try out nchan and want to try to build everything from source to keep up with version changes.

[sailerinteractive]

Version 0.97 of nchan does not exist (anymore) at the URL you try to download from.

[yellow1912]

Sorry, I meant to use v1.2.7, I think in my code it was correct. But just to be sure let me try again within today and report back.

[ivanovv]

I use Docker to build nchan, this might help you

Dockerfile:

FROM ubuntu:bionic AS builder

ENV NCHAN_VERSION 1.2.2
ENV NGINX_VERSION 1.18.0

RUN apt-get update && apt-get install -qq -y gnupg1 ca-certificates \
    && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ABF5BD827BD9BF62 \
    && echo "deb https://nginx.org/packages/ubuntu/ bionic nginx" >> /etc/apt/sources.list.d/nginx.list \
    && echo "deb-src https://nginx.org/packages/ubuntu/ bionic nginx" >> /etc/apt/sources.list.d/nginx.list \
    && apt-get update \
    && apt-get install -qq -y wget build-essential libpcre3 libpcre3-dev libssl-dev zlibc zlib1g zlib1g-dev nginx

# 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

# Reuse same cli arguments as the nginx binary used to build
RUN CONFARGS=$(nginx -V 2>&1 | sed -n -e 's/^.*arguments: //p') && \
  mkdir /usr/src1 && \
  tar -zxC /usr/src1 -f nginx.tar.gz && \
  tar -xzvf "nchan.tar.gz" && \
  NCHAN_DIR="$(pwd)/nchan-${NCHAN_VERSION}" && \
  cd /usr/src1/nginx-$NGINX_VERSION && \
  ./configure --with-compat "$CONFARGS" --add-dynamic-module=$NCHAN_DIR && \
  make modules && \
  mv ./objs/*.so /

release.sh

#!/bin/bash
set -e

mkdir -p tmp/

docker build -f Dockerfile -t nchan_module:releaser .

DOCKER_UUID=$(cat /dev/urandom | LC_ALL=C tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

docker run -ti --name nchan_module_${DOCKER_UUID} nchan_module:releaser /bin/true
docker cp nchan_module_${DOCKER_UUID}:/ngx_nchan_module.so tmp/
docker rm nchan_module_${DOCKER_UUID}

DOCKER_UUID generation line

DOCKER_UUID=$(cat /dev/urandom | LC_ALL=C tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

might not work on Ubuntu (works for me on macOS), but I've copied it from the internets, so if you google it, you will find a proper variant for Debian/Ubuntu

HTH