145 lines
4.7 KiB
Markdown
145 lines
4.7 KiB
Markdown
---
|
|
sidebar_position: 1
|
|
sidebar_label: "Custom SSL Certificates"
|
|
---
|
|
|
|
# Setup custom certificates
|
|
|
|
You can use your own certificates with EasyHAProxy instead of (or in addition to) automatic ACME/Certbot certificates.
|
|
|
|
:::info How SSL Termination Works
|
|
SSL termination happens at the **HAProxy level**, NOT in your backend containers.
|
|
|
|
- Your backend containers should **only** expose HTTP (port 80), not HTTPS
|
|
- HAProxy handles all SSL/TLS encryption and decryption
|
|
- Backend containers receive plain HTTP traffic from HAProxy
|
|
- Do NOT configure SSL in your backend application when using EasyHAProxy
|
|
|
|
This is the **correct design** - it centralizes SSL management at the proxy layer.
|
|
:::
|
|
|
|
:::info Certificate Types
|
|
EasyHAProxy supports two certificate sources:
|
|
- **ACME/Certbot automatic certificates** - Issued automatically via Let's Encrypt or other ACME providers (see [ACME documentation](./acme.md))
|
|
- **Manual/custom certificates** - Your own certificates loaded via volume mount (recommended) or labels (this page)
|
|
|
|
Both can be used simultaneously. Per domain, ACME certificates (if `certbot=true` label is set) take precedence over manual certificates.
|
|
:::
|
|
|
|
There are two ways to provide custom certificates:
|
|
|
|
- [Map the certificate as a docker volume](#map-the-certificate-as-a-docker-volume)
|
|
- [Setup certificate as a label definition](#setup-certificate-as-a-label-definition-in-docker-container)
|
|
|
|
## Map the certificate as a docker volume
|
|
|
|
EasyHAProxy stores the certificates inside the container folder `/etc/easyhaproxy/certs/haproxy`.
|
|
|
|
1. Run EasyHAProxy with the volume for the certificates:
|
|
|
|
```bash title="Create and mount certificate volume"
|
|
docker volume create certs_haproxy
|
|
|
|
docker run \
|
|
/* other parameters */
|
|
-v certs_haproxy:/etc/easyhaproxy/certs/haproxy \
|
|
-d byjg/easy-haproxy
|
|
```
|
|
|
|
2. Create a single PEM from the certificate and the key.
|
|
|
|
```bash title="Combine certificate and key"
|
|
cat example.com.crt example.com.key > single.pem
|
|
|
|
cat single.pem
|
|
|
|
-----BEGIN CERTIFICATE-----
|
|
MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQC5ZheHqmBnEJP+
|
|
U9r1gxYWKLzdqrMrcxtQN6M1hIH9n0peuJeIrybdcV7sMbStMXI=
|
|
-----END CERTIFICATE-----
|
|
|
|
-----BEGIN PRIVATE KEY-----
|
|
MIIEojCCA4qgAwIBAgIUegW2BimwuL4RzRZ2WYkHA6U5nkAwDQYJKoZIhvcNAQEL
|
|
3j4wz8/I5fdsk090j4s5KA==
|
|
-----END PRIVATE KEY-----
|
|
```
|
|
|
|
3. Copy this certificate to EasyHAProxy volume:
|
|
|
|
```bash title="Copy certificate to container"
|
|
# IMPORTANT: Filename must match the domain!
|
|
docker cp single.pem easyhaproxy:/etc/easyhaproxy/certs/haproxy/example.com.pem
|
|
```
|
|
|
|
:::warning Important Notes
|
|
- The filename **must match the domain name**: `example.com.pem` for domain `example.com`
|
|
- When using volume-mounted certificates, **do NOT** use the `easyhaproxy.[definition].sslcert` label
|
|
- The volume mount method and the label method are **mutually exclusive** per domain
|
|
- SSL termination happens at HAProxy - your backend containers should only serve HTTP
|
|
:::
|
|
|
|
4. Configure your backend container (no sslcert label needed):
|
|
|
|
```yaml
|
|
services:
|
|
easyhaproxy:
|
|
image: byjg/easy-haproxy:6.1.1
|
|
volumes:
|
|
- /var/run/docker.sock:/var/run/docker.sock
|
|
- certs_haproxy:/etc/easyhaproxy/certs/haproxy
|
|
ports:
|
|
- "80:80"
|
|
- "443:443"
|
|
|
|
myapp:
|
|
image: nginx
|
|
labels:
|
|
easyhaproxy.web.host: example.com
|
|
easyhaproxy.web.port: 80 # Frontend port (HAProxy listens here)
|
|
easyhaproxy.web.localport: 80 # Backend port (your container)
|
|
# NO sslcert label when using volume method!
|
|
|
|
volumes:
|
|
certs_haproxy:
|
|
```
|
|
|
|
## Setup certificate as a label definition in docker container
|
|
|
|
:::info Alternative Method
|
|
This method embeds certificates directly in container labels. Use it when you want certificates in version control or don't want to manage external files. **Volume method is recommended for most use cases.**
|
|
:::
|
|
|
|
1. Create a single PEM from the certificate and key:
|
|
|
|
```bash title="Combine certificate and key"
|
|
cat example.com.crt example.com.key > single.pem
|
|
```
|
|
|
|
2. Convert the `single.pem` to BASE64 in a single line:
|
|
|
|
```bash title="Convert to BASE64"
|
|
cat single.pem | base64 -w0
|
|
```
|
|
|
|
3. Add the Base64 string to your container label:
|
|
|
|
```yaml
|
|
services:
|
|
myapp:
|
|
image: nginx
|
|
labels:
|
|
easyhaproxy.web.host: example.com
|
|
easyhaproxy.web.port: 80
|
|
easyhaproxy.web.localport: 80
|
|
easyhaproxy.web.sslcert: "LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0t..." # Base64 certificate
|
|
```
|
|
|
|
:::warning When Using Label Method
|
|
- **There is no necessary to** mount the `/etc/easyhaproxy/certs/haproxy` volume for this domain
|
|
- Using `sslcert` label means the volume-mounted certificate will be **ignored**
|
|
- Certificate is visible in `docker inspect` output (less secure)
|
|
- Updating requires container redeployment
|
|
:::
|
|
|
|
----
|
|
[Open source ByJG](http://opensource.byjg.com)
|