project/www/stub/nginx_config.sh

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#!/bin/bash
set -eu
cd "$(dirname "$0")"
# here's the NGINX config. We support ghost and nextcloud.
NGINX_CONF_PATH="$PROJECT_PATH/nginx.conf"
# clear the existing nginx config.
echo "" > "$NGINX_CONF_PATH"
# iterate over all our domains and create the nginx config file.
iteration=0
for DOMAIN_NAME in ${DOMAIN_LIST//,/ }; do
export DOMAIN_NAME="$DOMAIN_NAME"
export SITE_PATH="$SITES_PATH/$DOMAIN_NAME"
export CONTAINER_TLS_PATH="/etc/letsencrypt/${DOMAIN_NAME}/live/${DOMAIN_NAME}"
# source the site path so we know what features it has.
source ../../project_defaults.sh
source "$SITE_PATH/site.conf"
source ../../domain_env.sh
if [ $iteration = 0 ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
events {
worker_connections 1024;
}
http {
client_max_body_size 100m;
server_tokens off;
sendfile on;
include mime.types;
# next two sets commands and connection_upgrade block come from https://docs.btcpayserver.org/FAQ/Deployment/#can-i-use-an-existing-nginx-server-as-a-reverse-proxy-with-ssl-termination
# Needed to allow very long URLs to prevent issues while signing PSBTs
server_names_hash_bucket_size 128;
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
client_header_buffer_size 500k;
large_client_header_buffers 4 500k;
# Needed websocket support (used by Ledger hardware wallets)
map \$http_upgrade \$connection_upgrade {
default upgrade;
'' close;
}
# return 403 for all non-explicit hostnames
server {
listen 80 default_server;
return 301 https://${WWW_FQDN}\$request_uri;
}
EOL
fi
# ghost http to https redirects.
cat >>"$NGINX_CONF_PATH" <<EOL
# http://${DOMAIN_NAME} redirect to https://${WWW_FQDN}
server {
listen 80;
server_name ${DOMAIN_NAME};
location / {
# request MAY get another redirect at https://domain.tld for www.
return 301 https://${DOMAIN_NAME}\$request_uri;
}
}
EOL
cat >>"$NGINX_CONF_PATH" <<EOL
# http://${WWW_FQDN} redirect to https://${WWW_FQDN}
server {
listen 80;
server_name ${WWW_FQDN};
return 301 https://${WWW_FQDN}\$request_uri;
}
EOL
# nextcloud http-to-https redirect
if [ "$DEPLOY_NEXTCLOUD" = true ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
# http://${NEXTCLOUD_FQDN} redirect to https://${NEXTCLOUD_FQDN}
server {
listen 80;
server_name ${NEXTCLOUD_FQDN};
return 301 https://${NEXTCLOUD_FQDN}\$request_uri;
}
EOL
fi
# gitea http to https redirect.
if [ "$DEPLOY_GITEA" = true ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
# http://${GITEA_FQDN} redirect to https://${GITEA_FQDN}
server {
listen 80;
server_name ${GITEA_FQDN};
return 301 https://${GITEA_FQDN}\$request_uri;
}
EOL
fi
# let's iterate over BTCPAY_ALT_NAMES and generate our SERVER_NAMES for btcpay server.
BTCPAY_SERVER_NAMES="$BTCPAY_USER_FQDN"
if [ -n "$BTCPAY_ALT_NAMES" ]; then
# let's stub out the rest of our site definitions, if any.
for ALT_NAME in ${BTCPAY_ALT_NAMES//,/ }; do
BTCPAY_SERVER_NAMES="$BTCPAY_SERVER_NAMES $ALT_NAME.$DOMAIN_NAME"
done
fi
# BTCPAY server http->https redirect
cat >>"$NGINX_CONF_PATH" <<EOL
# http://${BTCPAY_USER_FQDN} redirect to https://${BTCPAY_USER_FQDN}
server {
listen 80;
server_name ${BTCPAY_SERVER_NAMES};
return 301 https://\$host\$request_uri;
}
EOL
if [ $iteration = 0 ]; then
# TLS config for ghost.
cat >>"$NGINX_CONF_PATH" <<EOL
# global TLS settings
ssl_prefer_server_ciphers on;
ssl_protocols TLSv1.3;
ssl_session_timeout 1d;
ssl_session_cache shared:MozSSL:10m; # about 40000 sessions
ssl_session_tickets off;
add_header Strict-Transport-Security "max-age=63072000" always;
ssl_stapling on;
ssl_stapling_verify on;
# default server if hostname not specified.
server {
listen 443 default_server;
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
return 403;
}
# maybe helps with Twitter cards.
#map \$http_user_agent \$og_prefix {
# ~*(googlebot|twitterbot)/ /open-graph;
#}
# this map allows us to route the clients request to the correct Ghost instance
# based on the clients browser language setting.
map \$http_accept_language \$lang {
default "";
~es es;
}
EOL
fi
cat >>"$NGINX_CONF_PATH" <<EOL
# https://${DOMAIN_NAME} redirect to https://${WWW_FQDN}
server {
listen 443 ssl;
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
server_name ${DOMAIN_NAME};
EOL
if [ "$DEPLOY_NOSTR" = true ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
# We return a JSON object with name/pubkey mapping per NIP05.
# https://www.reddit.com/r/nostr/comments/rrzk76/nip05_mapping_usernames_to_dns_domains_by_fiatjaf/sssss
# TODO I'm not sure about the security of this Access-Control-Allow-Origin. Read up and restrict it if possible.
location = /.well-known/nostr.json {
add_header Content-Type application/json;
add_header Access-Control-Allow-Origin *;
return 200 '{ "names": { "_": "${NOSTR_ACCOUNT_PUBKEY}" }, "relays": { "${NOSTR_ACCOUNT_PUBKEY}": [ "wss://${NOSTR_FQDN}" ] } }';
}
EOL
fi
cat >>"$NGINX_CONF_PATH" <<EOL
# catch all; send request to ${WWW_FQDN}
location / {
return 301 https://${WWW_FQDN}\$request_uri;
}
}
#access_log /var/log/nginx/ghost-access.log;
#error_log /var/log/nginx/ghost-error.log;
EOL
if [ "$DEPLOY_NOSTR" = true ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
# wss://$NOSTR_FQDN server block
server {
listen 443 ssl;
server_name ${NOSTR_FQDN};
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
keepalive_timeout 70;
location / {
# redirect all HTTP traffic to btcpay server
proxy_pass http://nostr-${DOMAIN_IDENTIFIER}:8080;
proxy_http_version 1.1;
proxy_set_header Upgrade \$http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_set_header Host \$host;
}
}
EOL
fi
cat >>"$NGINX_CONF_PATH" <<EOL
# https server block for https://${BTCPAY_SERVER_NAMES}
server {
listen 443 ssl;
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
server_name ${BTCPAY_SERVER_NAMES};
# Route everything to the real BTCPay server
location / {
#proxy_pass http://${BTCPAY_SERVER_FQDN//./-}.lxd:80;
proxy_pass http://10.10.10.66:80;
proxy_set_header Host \$http_host;
proxy_set_header X-Forwarded-Proto \$scheme;
proxy_set_header X-Real-IP \$remote_addr;
proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
# For websockets (used by Ledger hardware wallets)
proxy_set_header Upgrade \$http_upgrade;
}
}
EOL
if [ "$DEPLOY_GHOST" = true ]; then
echo " # set up cache paths for nginx caching" >>"$NGINX_CONF_PATH"
for LANGUAGE_CODE in ${SITE_LANGUAGE_CODES//,/ }; do
STACK_NAME="$DOMAIN_IDENTIFIER-$LANGUAGE_CODE"
cat >>"$NGINX_CONF_PATH" <<EOL
proxy_cache_path /tmp/${STACK_NAME} levels=1:2 keys_zone=${STACK_NAME}:600m max_size=100m inactive=24h;
EOL
done
# the open server block for the HTTPS listener for ghost
cat >>"$NGINX_CONF_PATH" <<EOL
# Main HTTPS listener for https://${WWW_FQDN}
server {
listen 443 ssl;
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
server_name ${WWW_FQDN};
# Set the crawler policy.
location = /robots.txt {
add_header Content-Type text/plain;
return 200 "User-Agent: *\\nAllow: /\\n";
}
EOL
for LANGUAGE_CODE in ${SITE_LANGUAGE_CODES//,/ }; do
STACK_NAME="$DOMAIN_IDENTIFIER-$LANGUAGE_CODE"
if [ "$LANGUAGE_CODE" = en ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
location ~ ^/(ghost/|p/|private/) {
EOL
else
cat >>"$NGINX_CONF_PATH" <<EOL
location ~ ^/${LANGUAGE_CODE}/(ghost/|p/|private/) {
EOL
fi
cat >>"$NGINX_CONF_PATH" <<EOL
proxy_set_header X-Real-IP \$remote_addr;
proxy_set_header Host \$host;
proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto \$scheme;
proxy_intercept_errors on;
proxy_pass http://ghost-${STACK_NAME}:2368;
}
EOL
done
ROOT_SITE_LANGUAGE_CODES="$SITE_LANGUAGE_CODES"
for LANGUAGE_CODE in ${ROOT_SITE_LANGUAGE_CODES//,/ }; do
cat >>"$NGINX_CONF_PATH" <<EOL
# Location block to back https://${WWW_FQDN}/${LANGUAGE_CODE} or https://${WWW_FQDN}/ if english.
EOL
if [ "$LANGUAGE_CODE" = en ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
location / {
EOL
if (( "$LANGUAGE_CODE_COUNT" > 1 )); then
# we only need this clause if we know there is more than once lanuage being rendered.
cat >>"$NGINX_CONF_PATH" <<EOL
# Redirect the user to the correct language using the map above.
if ( \$http_accept_language !~* '^en(.*)\$' ) {
#rewrite (.*) \$1/\$lang;
return 302 https://${WWW_FQDN}/\$lang;
}
EOL
fi
else
cat >>"$NGINX_CONF_PATH" <<EOL
location /${LANGUAGE_CODE} {
EOL
fi
cat >>"$NGINX_CONF_PATH" <<EOL
proxy_set_header X-Real-IP \$remote_addr;
proxy_set_header Host \$host;
proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto \$scheme;
proxy_intercept_errors on;
proxy_pass http://ghost-${DOMAIN_IDENTIFIER}-${LANGUAGE_CODE}:2368;
# https://stanislas.blog/2019/08/ghost-nginx-cache/ for nginx caching instructions
# Remove cookies which are useless for anonymous visitor and prevent caching
proxy_ignore_headers Set-Cookie Cache-Control;
proxy_hide_header Set-Cookie;
# Add header for cache status (miss or hit)
add_header X-Cache-Status \$upstream_cache_status;
proxy_cache ${DOMAIN_IDENTIFIER}-${LANGUAGE_CODE};
# Default TTL: 1 day
proxy_cache_valid 5s;
# Cache 404 pages for 1h
proxy_cache_valid 404 1h;
# use conditional GET requests to refresh the content from origin servers
proxy_cache_revalidate on;
proxy_buffering on;
# Allows starting a background subrequest to update an expired cache item,
# while a stale cached response is returned to the client.
proxy_cache_background_update on;
# Bypass cache for errors
proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
}
EOL
done
# this is the closing server block for the ghost HTTPS segment
cat >>"$NGINX_CONF_PATH" <<EOL
}
EOL
fi
if [ "$DEPLOY_NEXTCLOUD" = true ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
# TLS listener for ${NEXTCLOUD_FQDN}
server {
listen 443 ssl;
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
server_name ${NEXTCLOUD_FQDN};
location / {
proxy_headers_hash_max_size 512;
proxy_headers_hash_bucket_size 64;
proxy_set_header X-Real-IP \$remote_addr;
proxy_set_header Host \$host;
proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto \$scheme;
proxy_set_header X-NginX-Proxy true;
proxy_pass http://${NEXTCLOUD_STACK_TAG}:80;
}
# https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/reverse_proxy_configuration.html
location /.well-known/carddav {
return 301 \$scheme://\$host/remote.php/dav;
}
location /.well-known/caldav {
return 301 \$scheme://\$host/remote.php/dav;
}
}
EOL
fi
if [ "$DEPLOY_GITEA" = true ]; then
cat >>"$NGINX_CONF_PATH" <<EOL
# TLS listener for ${GITEA_FQDN}
server {
listen 443 ssl;
ssl_certificate $CONTAINER_TLS_PATH/fullchain.pem;
ssl_certificate_key $CONTAINER_TLS_PATH/privkey.pem;
ssl_trusted_certificate $CONTAINER_TLS_PATH/fullchain.pem;
server_name ${GITEA_FQDN};
location / {
proxy_headers_hash_max_size 512;
proxy_headers_hash_bucket_size 64;
proxy_set_header X-Real-IP \$remote_addr;
proxy_set_header Host \$host;
proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto \$scheme;
proxy_set_header X-NginX-Proxy true;
proxy_pass http://gitea-${DOMAIN_IDENTIFIER}-en:3000;
}
}
EOL
fi
iteration=$((iteration+1))
done
# add the closing brace.
cat >>"$NGINX_CONF_PATH" <<EOL
}
EOL