146 lines
4.4 KiB
Markdown
146 lines
4.4 KiB
Markdown
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title = "Configuring a reverse proxy"
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weight = 30
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+++
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The main reason to add a reverse proxy in front of Garage is to provide TLS to your users and serve multiple web services on port 443.
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In production you will likely need your certificates signed by a certificate authority.
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The most automated way is to use a provider supporting the [ACME protocol](https://datatracker.ietf.org/doc/html/rfc8555)
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such as [Let's Encrypt](https://letsencrypt.org/), [ZeroSSL](https://zerossl.com/) or [Buypass Go SSL](https://www.buypass.com/ssl/products/acme).
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If you are only testing Garage, you can generate a self-signed certificate to follow the documentation:
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```bash
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openssl req \
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-new \
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-x509 \
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-keyout /tmp/garage.key \
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-out /tmp/garage.crt \
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-nodes \
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-subj "/C=XX/ST=XX/L=XX/O=XX/OU=XX/CN=localhost/emailAddress=X@X.XX" \
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-addext "subjectAltName = DNS:localhost, IP:127.0.0.1"
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cat /tmp/garage.key /tmp/garage.crt > /tmp/garage.pem
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```
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Be careful as you will need to allow self signed certificates in your client.
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For example, with minio, you must add the `--insecure` flag.
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An example:
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```bash
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mc ls --insecure garage/
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```
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## socat (only for testing purposes)
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If you want to test Garage with a TLS frontend, socat can do it for you in a single command:
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```bash
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socat \
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"openssl-listen:443,\
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reuseaddr,\
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fork,\
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verify=0,\
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cert=/tmp/garage.pem" \
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tcp4-connect:localhost:3900
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```
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## Nginx
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Nginx is a well-known reverse proxy suitable for production.
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We do the configuration in 3 steps: first we define the upstream blocks ("the backends")
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then we define the server blocks ("the frontends") for the S3 endpoint and finally for the web endpoint.
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The following configuration blocks can be all put in the same `/etc/nginx/sites-available/garage.conf`.
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To make your configuration active, run `ln -s /etc/nginx/sites-available/garage.conf /etc/nginx/sites-enabled/`.
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If you directly put the instructions in the root `nginx.conf`, keep in mind that these configurations must be enclosed inside a `http { }` block.
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And do not forget to reload nginx with `systemctl reload nginx` or `nginx -s reload`.
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### Exposing the S3 endpoints
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First, we need to tell to nginx how to access our Garage cluster.
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Because we have multiple nodes, we want to leverage all of them by spreading the load.
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In nginx, we can do that with the `upstream` directive.
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Then in a `server` directive, we define the vhosts, the TLS certificates and the proxy rule.
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A possible configuration:
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```nginx
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upstream s3_backend {
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# if you have a garage instance locally
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server 127.0.0.1:3900;
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# you can also put your other instances
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server 192.168.1.3:3900;
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# domain names also work
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server garage1.example.com:3900;
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# you can assign weights if you have some servers
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# that are more powerful than others
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server garage2.example.com:3900 weight=2;
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}
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server {
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listen [::]:443 http2 ssl;
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ssl_certificate /tmp/garage.crt;
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ssl_certificate_key /tmp/garage.key;
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# You need multiple server names here:
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# - s3.garage.tld is used for path-based s3 requests
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# - *.s3.garage.tld is used for vhost-based s3 requests
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server_name s3.garage.tld *.s3.garage.tld;
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location / {
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proxy_pass http://s3_backend;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header Host $host;
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}
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}
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```
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### Exposing the web endpoint
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To better understand the logic involved, you can refer to the [Exposing buckets as websites](/cookbook/exposing_websites.html) section.
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Otherwise, the configuration is very similar to the S3 endpoint.
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You must only adapt `upstream` with the web port instead of the s3 port and change the `server_name` and `proxy_pass` entry
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A possible configuration:
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```nginx
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upstream web_backend {
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server 127.0.0.1:3902;
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server 192.168.1.3:3902;
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server garage1.example.com:3902;
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server garage2.example.com:3902 weight=2;
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}
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server {
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listen [::]:443 http2 ssl;
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ssl_certificate /tmp/garage.crt;
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ssl_certificate_key /tmp/garage.key;
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# You need multiple server names here:
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# - *.web.garage.tld is used for your users wanting a website without reserving a domain name
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# - example.com, my-site.tld, etc. are reserved domain name by your users that chose to host their website as a garage's bucket
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server_name *.web.garage.tld example.com my-site.tld;
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location / {
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proxy_pass http://web_backend;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header Host $host;
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}
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}
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```
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## Apache httpd
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@TODO
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## Traefik
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@TODO
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