NOTE Catserver only provides a single release stream, so VERSION is ignored Running a server with a Feed the Beast modpack Here is a full example where we want to replace values inside a database.yml. Variables will be replaced in files with the following extensions: There are some limitations to what characters you can use. If you want use file for value (like when use secrets) you can add suffix _FILE to your variable name (in run command). Optionally you can also define a prefix to only match predefined enviroment variables.ĮNV_VARIABLE_PREFIX="CFG_" <- this is the default prefix Syntax for enviromment variables inside strings or config files. docker container inspect -f " curly brackets and prefixed with a dollar sign.
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