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Environment variable secrets are injected as standard environment variables when your environment starts. The secret name becomes the variable name.

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Behavior

AspectDetail
Injection timingAt environment start
NamingSecret name becomes the variable name
Update propagationNew environments get updated values immediately. Running environments require a restart.

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Access

# Shell
echo $APP_ENV

# Node.js
process.env.APP_ENV

# Python
os.environ['APP_ENV']

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Security considerations

For sensitive credentials like passwords and private keys, file secrets are more secure. Environment variables are suitable for API keys and non-sensitive configuration values.