Nginx as a frontend for Elasticsearch on Ubuntu 14.04

Many of these steps come from this wonderful blog post here.

Follow steps one through six here for installing Nginx.

Install Java, either OpenJDK (#1) or Oracle Java (#2)

```
apt-get install openjdk-6-jre
```

sudo add-apt-repository ppa:webupd8team/java
apt-get update
sudo apt-get install oracle-java7-installer

Test that Java is installed:
```
java -version
```
Download the deb file for Elasticsearch (below is 1.3.2, make sure you get the most recent one from the official location)
```
wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.3.2.deb
```
Install the deb file
```
dpkg -i elasticsearch-1.3.2.deb
```

Set Elasticsearch to start on boot

sudo update-rc.d elasticsearch defaults 95 10

Start Elasticsearch
```
sudo service elasticsearch start
```
Test to see if it is running. NOTE: Elasticsearch sometimes takes a couple of seconds to spin up. If you get a message saying Failed to connect to localhost port 9200: Connection refused wait a couple of seconds and try again.
```
curl localhost:9200
```

Secure Elasticsearch to only allow local connections

sudo vi /etc/elasticsearch/elasticsearch.yml

Comment out (if they aren’t already) these two lines:

#network.bind_host: #some_value
#network.publish_host: #some_other_value

Uncomment and set this line:

network.host: localhost

Restart elasticsearch
```
sudo service elasticsearch restart
```
For Nginx we’re just going to modify the default site
```
sudo vi /etc/nginx/sites-enabled/default
```

Replace everything with the below, changing example.com with your domain

server {
    listen 80;
    server_name example.com;
    location / {
        rewrite ^/(.*) /$1 break;
        proxy_ignore_client_abort on;
        proxy_pass http://localhost:9200;
        proxy_redirect http://localhost:9200 http://example.com/;
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  Host $http_host;
    }
}

Elasticsearch nginx

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