ansible-nginx/doc/upstream.md

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Upstream management
===================
`nginx_upstreams`: List of dict. An upstream has few keys. See bellow.
Note: Few params are unavailable on old Nginx version. But this role do _not_ put it if your version is too old!
Upstream params
---------------
- `name`: upstream name. Can be use in site with *proxy_pass http://upstream_name*
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- `params`: list of param (hash, zone...)
- `servers`: each upstream MUST have at least 1 server
- `state`: Optional. Can be 'absent' or 'present'
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Server params
-------------
You must set a `path`. For example: *192.168.0.50:8080* or *unix:/tmp/my.sock*.
All this params are optional. You should see [Nginx upstream doc](http://nginx.org/en/docs/http/ngx_http_upstream_module.html).
- `weight`
- `max_fails`
- `fail_timeout`
- `backup`
- `down`
- `route`
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- `slow_start`
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Example
-------
```yaml
nginx_upstreams:
- name: 'proxy_apache'
servers:
- path: '127.0.0.1:80'
max_conns: 150
weight: 10
down: false
state: 'present'
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```