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matrix-docker-ansible-deploy/roles/matrix-riot-web/templates/nginx.conf.j2
Slavi Pantaleev 299a8c4c7c Make (most) containers start as non-root
This makes all containers (except mautrix-telegram and
mautrix-whatsapp), start as a non-root user.

We do this, because we don't trust some of the images.
In any case, we'd rather not trust ALL images and avoid giving
`root` access at all. We can't be sure they would drop privileges
or what they might do before they do it.

Because Postfix doesn't support running as non-root,
it had to be replaced by an Exim mail server.

The matrix-nginx-proxy nginx container image is patched up
(by replacing its main configuration) so that it can work as non-root.
It seems like there's no other good image that we can use and that is up-to-date
(https://hub.docker.com/r/nginxinc/nginx-unprivileged is outdated).

Likewise for riot-web (https://hub.docker.com/r/bubuntux/riot-web/),
we patch it up ourselves when starting (replacing the main nginx
configuration).
Ideally, it would be fixed upstream so we can simplify.
2019-01-27 20:25:13 +02:00

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1.6 KiB
Django/Jinja

# This is a custom nginx configuration file that we use in the container (instead of the default one),
# because it allows us to run nginx with a non-root user.
#
# For this to work, the default vhost file (`/etc/nginx/conf.d/default.conf`) also needs to be removed.
# (mounting `/dev/null` over `/etc/nginx/conf.d/default.conf` works well)
#
# The following changes have been done compared to a default nginx configuration file:
# - default server port is changed (80 -> 8080), so that a non-root user can bind it
# - various temp paths are changed to `/tmp`, so that a non-root user can write to them
# - the `user` directive was removed, as we don't want nginx to switch users
worker_processes 1;
error_log /var/log/nginx/error.log warn;
pid /tmp/nginx.pid;
events {
worker_connections 1024;
}
http {
proxy_temp_path /tmp/proxy_temp;
client_body_temp_path /tmp/client_temp;
fastcgi_temp_path /tmp/fastcgi_temp;
uwsgi_temp_path /tmp/uwsgi_temp;
scgi_temp_path /tmp/scgi_temp;
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
keepalive_timeout 65;
#gzip on;
server {
listen 8080;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
}