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[PAN-2832] Support setting config options via environment variables #1597
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In descending order, the priority is CLI arg, env var, config file, default value.
| environment.put("PANTHEON_H", "abc"); | ||
| assertThat(provider.defaultValue(OptionSpec.builder("-h").build())).isNull(); | ||
| } | ||
| } |
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PR description
Supports setting config options via environment variables. Each CLI config option has an equivalent environment variable which is all upper-case, - becomes _ and a
PANTHEON_prefix is added. So--miner-coinbasecan be set viaPANTHEON_MINER_COINBASE.When the same option is set via multiple means, Pantheon will use the priority order: CLI arg, env var, config file.