lcrilly

limit_req_zone $remote_addr zone=per_ip:1M rate=5r/s sync; # Cluster-aware rate limiting
limit_req_status 429;

keyval_zone zone=sinbin:1M timeout=60 sync;
keyval $remote_addr $sinbin_rate zone=sinbin;

# Frontend
#
server {
    listen 80;

lcrilly

#!/usr/bin/env bash
#
# oas2nginx.sh (c) NGINX, Inc. [v0.5 13-Jan-2020] Liam Crilly <liam.crilly@nginx.com>
#
# Converts OpenAPI/Swagger spec into nginx.conf snippet (server context) as per
#  https://www.nginx.com/blog/deploying-nginx-plus-as-an-api-gateway-part-1/
# Requires shyaml for YAML processing: https://github.com/0k/shyaml

# Defaults
#

lcrilly

# This Dockerfile builds NGINX Unit from source, including njs, and
# by applying any .patch files found in the current directory. The
# latest Docker Official Image is used to select the code branch and
# copies the configure arguments so that the lanauge module in the
# Docker Image is compatible with the new unitd binary. 
#
# Build by specifying the tag of the most suitable Docker Official Image
# from <https://hub.docker.com/_/unit/tags> as
# docker build --build-arg TAG=php -t unit:test .
#

lcrilly

Prometheus exporter for NGINX Unit metrics

The NGINX Unit control API includes a /status endpoint for usage statistics. This is a solution for exposing these metrics in Prometheus format.

The application (run by Unit) queries the /status URI on the control socket and converts the JSON response into Prometheus text format. PHP and Python implementations are available.

These instructions assume an existing Unit installation with a working configuration. We will add a new listener on the default prometheus port (9090) and route it directly to the Prometheus app.

Step 0. Install the preferred Unit language module (unit-php or unit-python)

lcrilly

#!/bin/bash

NJS_VER=""
RBT=0
UNIT_VER=""
SUFFIX=()
PATCH_FILES=()
CONFIGURE_OPTIONS=""
STARTDIR=$PWD
WORKDIR=/tmp/build_unit.$$

lcrilly

lcrilly

Simple demo for NGINX Unit

JSON/REST API for simple addition in several languages and a hello world web page.

echo '{"operands": [100,25]}' | curl -d@- localhost:9000/add

lcrilly

Moved to GitHub repo https://github.com/lcrilly/unitc

lcrilly

Prometheus metrics for NGINX open source

Converts the output of the NGINX stub_status module to Prometheus format so that basic metrics can be scraped from a /metrics endpoint.

The NGINX JavaScript module is used to filter the stub_status response.

$ curl -i http://localhost:8080/metrics

lcrilly

FROM nginx AS build

WORKDIR /src
RUN apt-get update && \
    apt-get install -y git gcc make mercurial libperl-dev libpcre3-dev zlib1g-dev libxslt1-dev libgd-ocaml-dev libgeoip-dev
RUN git clone -b openssl-3.0 https://github.com/openssl/openssl openssl-3.0 && \
    hg clone https://hg.nginx.org/nginx && \
    hg clone http://hg.nginx.org/njs
RUN cd nginx && \
    auto/configure `nginx -V 2>&1 | sed "s/ \-\-/ \\\ \n\t--/g" | grep "\-\-" | grep -ve opt= -e param=` \