NGINX

January 14, 2021

proxying - https://www.digitalocean.com/community/tutorials/understanding-nginx-http-proxying-load-balancing-buffering-and-caching

https://www.digitalocean.com/community/tutorials/understanding-nginx-server-and-location-block-selection-algorithms - matching algorithms

https://www.digitalocean.com/community/tutorials/how-to-set-up-nginx-server-blocks-virtual-hosts-on-ubuntu-16-04 - manager server blocks

https://www.linode.com/docs/web-servers/nginx/how-to-configure-nginx/

headers

proxy_set_header X-Real-IP  $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;

env vars in config

https://docs.docker.com/samples/library/nginx/#using-environment-variables-in-nginx-configuration

  1. Create upstreams.conf.template. wrap vars with ${}

    upstream jaasmanda {
    server ${JAAS_MANDA};
}

  2. process vars. will copy processed to /etc/nginx/snippets/upstreams.conf

    export JAAS_MANDA=$(ip route | grep default | cut -d ' ' -f 3):8080
envsubst < /etc/nginx/conf.d/upstreams.conf.template > /etc/nginx/snippets/upstreams.conf && nginx -g 'daemon off;'

  3. include upstreams.conf in nginx.conf

    include /etc/nginx/snippets/upstreams.conf;

microservices

https://www.nginx.com/blog/building-microservices-using-an-api-gateway/

install on ubuntu 14.04 (trsusty)

https://www.phusionpassenger.com/library/install/nginx/install/oss/trusty/

sudo apt-get install -y dirmngr gnupg
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 561F9B9CAC40B2F7
#sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 16126D3A3E5C1192

sudo apt-get install -y apt-transport-https ca-certificates

#sudo sh -c 'echo deb https://oss-binaries.phusionpassenger.com/apt/passenger trusty main > /etc/apt/sources.list.d/passenger.list'

sudo sh -c 'echo deb https://oss-binaries.phusionpassenger.com/apt/passenger/4 trusty main > /etc/apt/sources.list.d/passenger.list'


sudo apt-get update

#sudo apt-get install nginx-common
sudo apt-get install nginx nginx-extras passenger