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#!/bin/sh
# Export used variables
export HOSTNAME="${HOSTNAME:-"$(hostname -f)"}"
export PROXY_LISTEN_PORT="${PROXY_LISTEN_PORT:-80}"
export PROXY_UPSTREAM_HOST="${PROXY_UPSTREAM_HOST:?}"
export PROXY_UPSTREAM_PORT="${PROXY_UPSTREAM_PORT:-80}"
export PROXY_UPSTREAM_PROTOCOL="${PROXY_UPSTREAM_PROTOCOL:-http}"
export PROXY_REQUEST_SIZE_MAX="${PROXY_REQUEST_SIZE_MAX:-1m}"
# Print out PROXY_* variables for debugging
env | grep '^PROXY_'
# Update nginx.conf
sed \
-e "s/%%PROXY_LISTEN_PORT%%/${PROXY_LISTEN_PORT}/" \
-e "s/%%PROXY_HOSTNAME%%/${PROXY_HOSTNAME}/" \
-e "s/%%PROXY_UPSTREAM_HOST%%/${PROXY_UPSTREAM_HOST}/" \
-e "s/%%PROXY_UPSTREAM_PORT%%/${PROXY_UPSTREAM_PORT}/" \
-e "s/%%PROXY_UPSTREAM_PROTOCOL%%/${PROXY_UPSTREAM_PROTOCOL}/" \
-e "s/%%PROXY_REQUEST_SIZE_MAX%%/${PROXY_REQUEST_SIZE_MAX}/" \
< /etc/nginx/nginx.conf.template > /etc/nginx/nginx.conf
# Run nginx
exec nginx -g "daemon off;"
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