impress/deploy/files/sites-available/impress.conf

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server {
server_name {{ impress_hostname }};
listen 80;
listen [::]:80;
if ($host = {{ impress_hostname }}) {
return 301 https://$host$request_uri;
}
}
server {
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set $maintenance 0; # To enable maintenance mode, set this to 1.
server_name {{ impress_hostname }};
listen 443 ssl;
listen [::]:443 ssl;
ssl_certificate /etc/letsencrypt/live/{{ impress_hostname }}/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/{{ impress_hostname }}/privkey.pem;
include /etc/letsencrypt/options-ssl-nginx.conf;
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
ssl_session_cache shared:SSL:10m; # https://superuser.com/q/1484466/14127
root /srv/impress/current/public;
# Serve assets using their precompressed *.gz versions.
# The filenames contain content hashes, so they should be safe to
# cache forever.
# https://stackoverflow.com/a/6952804/107415
location ~ ^/assets/ {
gzip_static on;
expires max;
add_header Cache-Control public;
add_header Last-Modified "";
add_header ETag "";
}
# On status 503, return the maintenance page. (We'll trigger this ourselves
# in the @app location, if $maintenance is on.)
error_page 503 /maintenance.html;
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# On status 502, return the outage page. (nginx will trigger this if the
# `proxy_pass` to the application fails.)
error_page 502 /outage.html;
# Try serving static files first. If not found, fall back to the app.
try_files $uri/index.html $uri @app;
location @app {
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# If we're hardcoded as being in maintenance mode, return status 503, which
# will show the maintenance page as specified above.
if ($maintenance = 1) {
return 503;
}
proxy_pass http://127.0.0.1:3000;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto https;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header Host $http_host;
proxy_redirect off;
}
}