Platform.sh User Documentation

How to Deploy Spring on Platform.sh with Elasticsearch

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To activate Elasticsearch and then have it accessed by the Spring application already in Platform.sh, it is necessary to modify two files.

1. Add the Elasticsearch service Anchor to this heading

In your service configuration, include Elasticsearch with a valid supported version:

.platform/services.yaml
elasticsearch:
    type: elasticsearch:8.5
    disk: 256

2. Add the Elasticsearch relationship Anchor to this heading

In your app configuration, use the service name searchelastic to grant the application access to Elasticsearch via a relationship:

.platform.app.yaml
relationships:
    elasticsearch: "elasticsearch:elasticsearch"

3. Export connection credentials to the environment Anchor to this heading

Connection credentials for Elasticsearch, like any service, are exposed to the application container through the PLATFORM_RELATIONSHIPS environment variable from the deploy hook onward. Since this variable is a base64 encoded JSON object of all of your project’s services, you’ll likely want a clean way to extract the information specific to Elasticsearch into it’s own environment variables that can be used by Spring. On Platform.sh, custom environment variables can be defined programmatically in a .environment file using jq to do just that:

export ES_HOST=$(echo $PLATFORM_RELATIONSHIPS | base64 --decode | jq -r ".essearch[0].host")
export ES_PORT=$(echo $PLATFORM_RELATIONSHIPS | base64 --decode | jq -r ".essearch[0].port")
export SPRING_ELASTICSEARCH_REST_URIS="http://${ES_HOST}:${ES_PORT}"
export JAVA_OPTS="-Xmx$(jq .info.limits.memory /run/config.json)m -XX:+ExitOnOutOfMemoryError"

4. Connect to Elasticsearch Anchor to this heading

Commit that code and push. The Elasticsearch instance is ready to be connected from within the Spring application.

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