OpenSearch is an open source, enterprise search engine built on top of Apache Lucene. In this tutorial, we will go through the steps to install OpenSearch on NixOS, the latest version of the Linux distribution.
Before we can install OpenSearch, we need to ensure that NixOS is properly configured. You can follow the steps outlined in the NixOS documentation to get started.
OpenSearch requires Java 11 or higher to run. We'll start by installing Java on our NixOS system.
$ nix-env -i openjdk11
This command will install OpenJDK 11 on your system.
Next, we need to download the OpenSearch package from the official website: https://opensearch.org/.
$ wget https://artifacts.opensearch.org/releases/bundle/opensearch/1.0.0/opensearch-1.0.0-linux-x64.tar.gz
This will download the OpenSearch package to your current directory.
Once the package has been downloaded, we need to extract it.
$ tar -xvf opensearch-1.0.0-linux-x64.tar.gz
This will extract the OpenSearch package into a new directory called opensearch-1.0.0.
Before we can start OpenSearch, we need to configure it. We'll create a new configuration file in the opensearch-1.0.0 directory.
$ nano opensearch-1.0.0/config/opensearch.yml
Add the following lines to the configuration file:
cluster.name: my_cluster
node.name: my_node
path.data: /var/lib/opensearch
path.logs: /var/log/opensearch
Save and exit the file.
Now that we have our configuration file in place, we can start OpenSearch.
$ opensearch-1.0.0/bin/opensearch
This will start OpenSearch in the foreground.
To verify that OpenSearch is running, open a web browser and navigate to http://localhost:9200/. You should see a JSON response from OpenSearch.
Congratulations! You have successfully installed OpenSearch on NixOS. You can now use it as a search engine for your enterprise applications.
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