Environment Variables

Environment variables are a set of dynamic placeholders that can affect the way a certain service behaves within an environment. For example, if you want to connect a Liferay DXP instance to a database, you can pass the database’s URL, user, and password via environment variables. You can add environment variables to your application via the web console or wedeploy.json.

Adding Environment Variables via the Web Console

To add environment variables to your service, go to the service’s Environment Variables tab and add as many variables as you need. Enter each environment variable as a key-value pair, with the variable name (key) in a field on the left, and the value in the field to its right.

web-console-env-variables.png

Figure 1: You can add environment variables via the web console.

Adding Environment Variables via wedeploy.json

You can also add environment variables via your wedeploy.json by using the env property. This example adds the environment variables MYSQL_ROOT_PASSWORD and MYSQL_ROOT_USER with the values pass and example, respectively:

{
  "id": "db",
  "image": "mysql",
  "env": {
    "MYSQL_ROOT_PASSWORD": "pass",
    "MYSQL_ROOT_USER": "example"
  }
}
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