5397f0166e
- Eliminated the `version` field across various examples and documentation for simplicity and alignment with newer Docker Compose and Swarm standards. - Updated relevant documentation and example usage instructions accordingly.
148 lines
8.2 KiB
Markdown
148 lines
8.2 KiB
Markdown
---
|
|
sidebar_position: 11
|
|
---
|
|
|
|
# Container Labels
|
|
|
|
## Container (Docker or Swarm) labels
|
|
|
|
| Label | Description | Default | Example |
|
|
|---------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|------------------------------------------------------------------------------------------------------------------|
|
|
| easyhaproxy.[definition].host | Host(s) HAProxy is listening. More than one host use comma as delimiter | **required** | somehost.com OR host1.com,host2.com |
|
|
| easyhaproxy.[definition].mode | (Optional) Is this `http` or `tcp` mode in HAProxy. | http | http or tcp |
|
|
| easyhaproxy.[definition].port | (Optional) Port HAProxy will listen for the host. | 80 | 3000 |
|
|
| easyhaproxy.[definition].localport | (Optional) Port container is listening. | 80 | 8080 |
|
|
| easyhaproxy.[definition].redirect | (Optional) JSON containing key/value pair from host/to URL redirect. | *empty* | \{"foo.com":"https://bla.com", "bar.com":"https://bar.org"} |
|
|
| easyhaproxy.[definition].sslcert | (Optional) Cert PEM Base64 encoded. Do not use this if `certbot` is enabled. | *empty* | base64 cert + key |
|
|
| easyhaproxy.[definition].ssl | (Optional) If `true` you need to provide certificate as a file. See below. Do not use with `sslcert`. | false | true or false |
|
|
| easyhaproxy.[definition].ssl-check | (Optional) `ssl`, enable health check via SSL in `mode tcp` | *empty* | ssl |
|
|
| easyhaproxy.[definition].certbot | (Optional) Generate certificate with certbot. Do not use with `sslcert` parameter. More info [here](acme.md). | false | true OR false |
|
|
| easyhaproxy.[definition].redirect_ssl | (Optional) Redirect all requests to https | false | true OR false |
|
|
| easyhaproxy.[definition].clone_to_ssl | (Optional) It copies the configuration to HTTPS(443) and disable SSL from the current config. **Do not use** this with `ssl` or `certbot` parameters | false | true OR false |
|
|
| easyhaproxy.[definition].balance | (Optional) HAProxy balance algorithm. See [HAProxy documentation](https://cbonte.github.io/haproxy-dconv/1.8/configuration.html#4.2-balance) | roundrobin | roundrobin, source, uri, url_param, hdr, rdp-cookie, leastconn, first, static-rr, rdp-cookie, hdr_dom, map-based |
|
|
| easyhaproxy.[definition].proto | (Optional) Backend server protocol (e.g., fcgi for PHP-FPM, h2 for HTTP/2) | *empty* | fcgi, h2 |
|
|
| easyhaproxy.[definition].socket | (Optional) Unix socket path for backend connection (alternative to host:port) | *empty* | /run/php/php-fpm.sock |
|
|
|
|
:::info Understanding Definitions
|
|
The `[definition]` is a string identifier that groups related configuration labels together. Different definitions create separate HAProxy configurations.
|
|
|
|
A single container can have multiple definitions to expose different services or ports.
|
|
:::
|
|
|
|
## Configurations
|
|
|
|
### Single Definition
|
|
|
|
```bash title="Single service configuration"
|
|
docker run \
|
|
--label easyhaproxy.webapi.port=80\
|
|
--label easyhaproxy.webapi.host=byjg.com.br \
|
|
....
|
|
```
|
|
|
|
### Multiple Definitions on the same container
|
|
|
|
```bash title="Multiple services on one container"
|
|
docker run \
|
|
--label easyhaproxy.express.port=80 \
|
|
--label easyhaproxy.express.localport=3000 \
|
|
--label easyhaproxy.express.host=express.byjg.com.br \
|
|
|
|
--label easyhaproxy.admin.port=80 \
|
|
--label easyhaproxy.admin.localport=3001 \
|
|
--label easyhaproxy.admin.host=admin.byjg.com.br \
|
|
.... \
|
|
some/myimage
|
|
```
|
|
|
|
### Multiple hosts on the same container
|
|
|
|
```bash title="Multiple hosts for one service"
|
|
docker run \
|
|
--label easyhaproxy.express.port=80 \
|
|
--label easyhaproxy.express.localport=3000 \
|
|
--label easyhaproxy.express.host=express.byjg.com.br,admin.byjg.com.br \
|
|
.... \
|
|
some/myimage
|
|
```
|
|
|
|
If you are using docker-compose you can use this way:
|
|
|
|
```yaml
|
|
services:
|
|
mycontainer:
|
|
image: some/myimage
|
|
labels:
|
|
easyhaproxy.express.port: 80
|
|
easyhaproxy.express.localport: 3000
|
|
easyhaproxy.express.host: >-
|
|
express.byjg.com.br,
|
|
admin.byjg.com.br
|
|
```
|
|
|
|
### TCP Mode
|
|
|
|
Set `easyhaproxy.[definition].mode=tcp` if your application uses TCP protocol instead of HTTP.
|
|
|
|
```bash title="TCP mode configuration"
|
|
docker run \
|
|
--label easyhaproxy.example.mode=tcp \
|
|
--label easyhaproxy.example.port=3306
|
|
--label easyhaproxy.example.localport=3306
|
|
.... \
|
|
some/tcp-service
|
|
```
|
|
|
|
### FastCGI (PHP-FPM) Support
|
|
|
|
EasyHAProxy supports FastCGI protocol for PHP-FPM and other FastCGI applications.
|
|
|
|
#### Using Unix Socket
|
|
|
|
```yaml title="PHP-FPM with Unix socket"
|
|
services:
|
|
php-fpm:
|
|
image: php:8.2-fpm
|
|
labels:
|
|
easyhaproxy.fcgi.host: phpapp.local
|
|
easyhaproxy.fcgi.port: 80
|
|
easyhaproxy.fcgi.socket: /run/php/php-fpm.sock
|
|
easyhaproxy.fcgi.proto: fcgi
|
|
volumes:
|
|
- /run/php:/run/php
|
|
```
|
|
|
|
#### Using TCP Connection
|
|
|
|
```yaml title="PHP-FPM with TCP connection"
|
|
services:
|
|
php-fpm:
|
|
image: php:8.2-fpm
|
|
labels:
|
|
easyhaproxy.fcgi.host: phpapp.local
|
|
easyhaproxy.fcgi.port: 80
|
|
easyhaproxy.fcgi.localport: 9000
|
|
easyhaproxy.fcgi.proto: fcgi
|
|
```
|
|
|
|
**Generated HAProxy Configuration:**
|
|
|
|
```
|
|
backend srv_phpapp_local_80
|
|
balance roundrobin
|
|
mode http
|
|
option forwardfor
|
|
http-request set-header X-Forwarded-Port %[dst_port]
|
|
http-request add-header X-Forwarded-Proto https if { ssl_fc }
|
|
server srv-0 /run/php/php-fpm.sock check weight 1 proto fcgi
|
|
```
|
|
|
|
### Redirect Domains
|
|
|
|
```bash title="Domain redirect configuration"
|
|
docker run \
|
|
--label easyhaproxy.[definition].redirect='{"www.byjg.com.br":"http://byjg.com.br","byjg.com":"http://byjg.com.br"}'
|
|
```
|
|
|
|
----
|
|
[Open source ByJG](http://opensource.byjg.com)
|