ARG PROXY_REGISTRY
FROM ${PROXY_REGISTRY}nginx:alpine

HEALTHCHECK CMD curl --fail http://localhost/tt-rss/index.php || exit 1

COPY .docker/web-nginx/nginx.conf /etc/nginx/templates/nginx.conf.template

# By default, nginx will send the php requests to "app" server, but this server
# name can be overridden at runtime by passing an APP_UPSTREAM env var
ENV APP_UPSTREAM=${APP_UPSTREAM:-app}

# Webroot (defaults to /var/www/html)
ENV APP_WEB_ROOT=${APP_WEB_ROOT:-/var/www/html}

# Base location for tt-rss (defaults to /tt-rss)
ENV APP_BASE=${APP_BASE:-/tt-rss}

# Resolver for nginx (kube-dns.kube-system.svc.cluster.local for k8s)
ENV RESOLVER=${RESOLVER:-127.0.0.11}

# In order to make tt-rss appear on website root without /tt-rss/ set above as follows in .env:
# APP_WEB_ROOT=/var/www/html/tt-rss
# APP_BASE=

# It's necessary to set the following NGINX_ENVSUBST_OUTPUT_DIR env var to tell
# nginx to replace the env vars of /etc/nginx/templates/nginx.conf.template
# and put the result in /etc/nginx/nginx.conf (instead of /etc/nginx/conf.d/nginx.conf)
# See https://github.com/docker-library/docs/tree/master/nginx#using-environment-variables-in-nginx-configuration-new-in-119
ENV NGINX_ENVSUBST_OUTPUT_DIR=/etc/nginx