confd_env

# confdir

```
$ tree env_confd/
env_confd/
├── conf.d
│   └── nginx.toml
└── templates
    └── nginx.tmpl

2 directories, 2 files
```

## nginx.toml

```
[template]
src = "nginx.tmpl"
dest = "/tmp/nginx.conf"
keys = [
  "/nginx/services/a/name",
  "/nginx/services/a/address",
  "/nginx/services/a/shortname",
  "/nginx/services/b/name",
  "/nginx/services/b/address",
  "/nginx/services/b/shortname",
]
```

##  nginx.tmpl

```
{{range $service := ls "/nginx/services"}}
server {
	{{$shortname := printf "/nginx/services/%s/shortname" $service}}
    access_log      /var/logs/nginx/{{getv $shortname}}/access.log;
    error_log       /var/logs/nginx/{{getv $shortname}}/error.log;
 
    listen          443 ssl;
    server_name     {{getv (printf "/nginx/services/%s/name" $service)}}.local.io;
 
    location / {
       proxy_pass  http://{{getv (printf "/nginx/services/%s/address" $service)}}.local.io$request_uri;
    }
}
{{end}}
```

## Run confd

```
confd -onetime -confdir env_confd/ -backend env
```

```
cat /tmp/nginx.conf
server {
	
    access_log      /var/logs/nginx/a/access.log;
    error_log       /var/logs/nginx/a/error.log;
 
    listen          443 ssl;
    server_name     ServiceA.local.io;
 
    location / {
       proxy_pass  http://10.0.0.2.local.io$request_uri;
    }
}

server {
	
    access_log      /var/logs/nginx/b/access.log;
    error_log       /var/logs/nginx/b/error.log;
 
    listen          443 ssl;
    server_name     ServiceB.local.io;
 
    location / {
       proxy_pass  http://10.0.0.3.local.io$request_uri;
    }
}
```