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https://github.com/itzg/docker-minecraft-server.git
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42 lines
1.3 KiB
Bash
42 lines
1.3 KiB
Bash
#!/bin/bash
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. ${SCRIPTS:-/}start-utils
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: ${ENV_VARIABLE_PREFIX:=CFG_}
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if isTrue "${REPLACE_ENV_VARIABLES}"; then
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log "Replacing env variables in configs that match the prefix $ENV_VARIABLE_PREFIX..."
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findExcludes=
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for f in ${REPLACE_ENV_VARIABLES_EXCLUDES}; do
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findExcludes="${findExcludes} -not -name $f"
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done
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for p in ${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}; do
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findExcludes="${findExcludes} -not -path \"*$p*\""
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done
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isDebugging && echo "Using find exclusion: $findExcludes"
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while IFS='=' read -r name value ; do
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# check if name of env variable matches the prefix
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# sanity check environment variables to avoid code injections
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if [[ "$name" = $ENV_VARIABLE_PREFIX* ]] \
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&& [[ $value =~ ^[0-9a-zA-Z_:/=?.+\-]*$ ]] \
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&& [[ $name =~ ^[0-9a-zA-Z_\-]*$ ]]; then
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# Read content from file environment
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if [[ $name = *"_FILE" ]] && [[ -f $value ]]; then
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name="${name/_FILE/}"
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value=$(<$value)
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fi
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log "Replacing $name with $value ..."
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find /data/ -type f \
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\( -name "*.yml" -or -name "*.yaml" -or -name "*.txt" -or -name "*.cfg" \
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-or -name "*.conf" -or -name "*.properties" \) \
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$findExcludes \
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-exec sed -i 's#${'"$name"'}#'"$value"'#g' {} \;
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fi
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done < <(env)
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fi
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exec ${SCRIPTS:-/}start-minecraftFinalSetup $@
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