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Update Heroku Postgres section for mandatory TLS (#646)

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Zsolt Váradi 2022-04-20 12:00:21 +02:00 committed by GitHub
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4.0/docs/deploy/heroku.md
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@ -193,29 +193,17 @@ This will make output somewhat like this
DATABASE_URL: postgres://cybntsgadydqzm:2d9dc7f6d964f4750da1518ad71hag2ba729cd4527d4a18c70e024b11cfa8f4b@ec2-54-221-192-231.compute-1.amazonaws.com:5432/dfr89mvoo550b4 DATABASE_URL: postgres://cybntsgadydqzm:2d9dc7f6d964f4750da1518ad71hag2ba729cd4527d4a18c70e024b11cfa8f4b@ec2-54-221-192-231.compute-1.amazonaws.com:5432/dfr89mvoo550b4
``` ```
**DATABASE_URL** here will represent out postgres database. **NEVER** hard code the static url from this, heroku will rotate it and it will break your application. It is also bad practice. **DATABASE_URL** here will represent out postgres database. **NEVER** hard code the static url from this, heroku will rotate it and it will break your application. It is also bad practice. Instead, read the environment variable at runtime.
Here is an example database configuration The Heroku Postgres addon [requires](https://devcenter.heroku.com/changelog-items/2035) all connections to be encrypted. The certificates used by the Postgres servers are internal to Heroku, therefore an **unverified** TLS connection must be set up.
```swift The following snippet shows how to achieve both:
if let databaseURL = Environment.get("DATABASE_URL") {
app.databases.use(try .postgres(
url: databaseURL
), as: .psql)
} else {
// ...
}
```
Unverified TLS is required if you are using Heroku Postgres's standard plan:
```swift ```swift
if let databaseURL = Environment.get("DATABASE_URL"), var postgresConfig = PostgresConfiguration(url: databaseURL) { if let databaseURL = Environment.get("DATABASE_URL"), var postgresConfig = PostgresConfiguration(url: databaseURL) {
postgresConfig.tlsConfiguration = .makeClientConfiguration() postgresConfig.tlsConfiguration = .makeClientConfiguration()
postgresConfig.tlsConfiguration?.certificateVerification = .none postgresConfig.tlsConfiguration?.certificateVerification = .none
app.databases.use(.postgres( app.databases.use(.postgres(configuration: postgresConfig), as: .psql)
configuration: postgresConfig
), as: .psql)
} else { } else {
// ... // ...
} }