mattermost-docker/nginx/conf.d/default.conf

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# mattermost
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# config can be tested on https://www.ssllabs.com/ssltest/ and a good nginx config generator
# can be found at https://ssl-config.mozilla.org/
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# proxy cache
proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=mattermost_cache:10m max_size=3g inactive=120m use_temp_path=off;
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# upstream used in proxy_pass below
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upstream backend {
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# ip where Mattermost is running; this relies on a working DNS inside the Docker network
# and uses the hostname of the mattermost container (see service name in docker-compose.yml)
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server mattermost:8065;
keepalive 64;
}
# vhosts definitions
server {
server_name _;
listen 80 default_server;
listen [::]:80 default_server;
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# redirect all HTTP requests to HTTPS with a 301 Moved Permanently response.
return 301 https://$host$request_uri;
}
server {
server_name _;
listen 443 ssl http2 default_server;
listen [::]:443 ssl http2 default_server;
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# logging
access_log /var/log/nginx/mm.access.log;
error_log /var/log/nginx/mm.error.log warn;
# gzip for performance
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_types text/plain text/css text/xml application/json application/javascript application/rss+xml application/atom+xml image/svg+xml;
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## ssl
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ssl_dhparam /dhparams4096.pem;
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ssl_session_timeout 1d;
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ssl_session_cache shared:MozSSL:10m;
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ssl_session_tickets off;
# intermediate configuration
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;
# certs sent to the client in SERVER HELLO are concatenated in ssl_certificate
ssl_certificate /cert.pem;
ssl_certificate_key /key.pem;
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# enable TLSv1.3's 0-RTT. Use $ssl_early_data when reverse proxying to prevent replay attacks.
# https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_early_data
ssl_early_data on;
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# OCSP stapling
ssl_stapling on;
ssl_stapling_verify on;
#resolver 1.1.1.1;
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# verify chain of trust of OCSP response using Root CA and Intermediate certs
#ssl_trusted_certificate /etc/ssl/certs/ca-certificates.crt;
## security headers
# https://securityheaders.com/
# https://scotthelme.co.uk/tag/security-headers/
add_header X-Frame-Options "SAMEORIGIN" always;
add_header X-XSS-Protection "1; mode=block" always;
add_header X-Content-Type-Options "nosniff" always;
add_header Referrer-Policy no-referrer;
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add_header Strict-Transport-Security "max-age=63072000" always;
add_header Permissions-Policy "interest-cohort=()";
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## locations
# ACME-challenge
location ^~ /.well-known {
default_type "text/plain";
root /usr/share/nginx/html;
allow all;
}
# disable Google bots from indexing this site
location = /robots.txt {
add_header Content-Type text/plain;
return 200 "User-agent: *\nDisallow: /\n";
}
location ~ /api/v[0-9]+/(users/)?websocket$ {
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
client_max_body_size 50M;
proxy_set_header Host $http_host;
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 $scheme;
proxy_set_header X-Frame-Options SAMEORIGIN;
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proxy_set_header Early-Data $ssl_early_data;
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proxy_buffers 256 16k;
proxy_buffer_size 16k;
client_body_timeout 60;
send_timeout 300;
lingering_timeout 5;
proxy_connect_timeout 90;
proxy_send_timeout 300;
proxy_read_timeout 90s;
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proxy_http_version 1.1;
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proxy_pass http://backend;
}
location / {
client_max_body_size 50M;
proxy_set_header Connection "";
proxy_set_header Host $http_host;
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 $scheme;
proxy_set_header X-Frame-Options SAMEORIGIN;
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proxy_set_header Early-Data $ssl_early_data;
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proxy_buffers 256 16k;
proxy_buffer_size 16k;
proxy_read_timeout 600s;
proxy_cache mattermost_cache;
proxy_cache_revalidate on;
proxy_cache_min_uses 2;
proxy_cache_use_stale timeout;
proxy_cache_lock on;
proxy_http_version 1.1;
proxy_pass http://backend;
}
}