Environment variables included in the config file are not evaluated

[kenchan0130]

What version of Flyway are you using?

4.0.3

Which client are you using? (Command-line, Java API, Maven plugin, Gradle plugin, SBT plugin, ANT tasks)

Command-line

What database are you using (type & version)?

MySQL 5.6.24

What operating system are you using?

Mac OSX 10.11.6

What did you do?

(Please include the content causing the issue, any relevant configuration settings, and the command you ran)

# test.conf
flyway.url=jdbc:mysql://${DATABASE_HOST}:3306/sample
flyway.user=root
flyway.locations=filesystem:db/migration

$ flyway -configFile=test.conf migrate
Flyway 4.0.3 by Boxfuse

Database password:
ERROR: Unable to obtain Jdbc connection from DataSource (jdbc:mysql://${DATABASE_HOST}:3306/sample) for user 'root': url parameter error '${DATABASE_HOST}' is a unknown parameter in the url jdbc:mysql://${DATABASE_HOST}:3306/sample

What did you expect to see?

I expected evaluating a DATABASE_HOST environment variable.
However, it occurred that error.

[jeanbza]

Same problem here

[safouanenac]

opened since 2 Dec 2016 !

[einnjo]

I know flyway can be configured via placeholder environment variables but this means we would need to duplicate our database credential variables (once for flyway, once for app). Is there any way to get #1785 going again?