docker-minecraft-server/minecraft-server/start-finalSetup05EnvVariables
Michael Reichenbach a316bd8f95 fix(minecraft-server): filter env replacement file
Environment variable replacement now only affects matching file types.

Closes #299
2019-03-29 12:11:42 +01:00

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#!/bin/bash
if [ "$REPLACE_ENV_VARIABLES" = "TRUE" ]; then
echo "Replacing env variables in configs that match the prefix $ENV_VARIABLE_PREFIX..."
while IFS='=' read -r name value ; do
# check if name of env variable matches the prefix
# sanity check environment variables to avoid code injections
if [[ "$name" = $ENV_VARIABLE_PREFIX* ]] && [[ $value =~ ^[0-9a-zA-Z_:/=?.+\-]*$ ]] && [[ $name =~ ^[0-9a-zA-Z_\-]*$ ]]; then
echo "Replacing $name with $value ..."
find /data/ -type f \( -name "*.yml" -or -name "*.yaml" -or -name "*.txt" -or -name "*.cfg" -or -name "*.properties" \) -exec sed -i 's#${'"$name"'}#'"$value"'#g' {} \;
fi
done < <(env)
fi
exec /start-minecraftFinalSetup $@