Nginx v1.17.6 modules building for CentOS / RHEL 6

Dockerfile

FROM centos:6.10

# Update to use vault repositories since CentOS 6 is EOL
RUN sed -i 's|mirrorlist=http://mirrorlist.centos.org|#mirrorlist=http://mirrorlist.centos.org|g' /etc/yum.repos.d/CentOS-Base.repo && \
    sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-Base.repo

# Clean and update yum
RUN yum clean all && yum -y update

# Install build dependencies
RUN yum install -y gcc make curl tar pcre-devel zlib-devel openssl-devel

# Download and extract the same nginx version as the target system
WORKDIR /build
RUN curl -O http://nginx.org/download/nginx-1.17.6.tar.gz && \
    tar -xf nginx-1.17.6.tar.gz

# Download and extract a specific version of njs that's compatible with NGINX 1.17.6
RUN curl -O http://hg.nginx.org/njs/archive/0.3.8.tar.gz && \
    tar -xf 0.3.8.tar.gz

# Configure and build with minimal modules to avoid dependency issues
WORKDIR /build/nginx-1.17.6
RUN ./configure --with-compat \
    --add-dynamic-module=../njs-0.3.8/nginx

# Build just the modules (not the full nginx)
RUN make modules

# The module will be in /build/nginx-1.17.6/objs/ngx_http_js_module.so
# Create a directory to hold the final artifact
RUN mkdir -p /output && \
    cp /build/nginx-1.17.6/objs/ngx_http_js_module.so /output/

# Set the working directory to the output directory for easier extraction
WORKDIR /output

# The module can be extracted from the container using:
# docker cp container_id:/output/ngx_http_js_module.so /path/on/host