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fbff92403f
By using the `ROMM_PORT` environment variable, users can now configure the port on which the application listens, which defaults to `8080`.
45 lines
1.4 KiB
Bash
Executable File
45 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Load environment variables from variants with a _FILE suffix.
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# The following logic reads variables with a _FILE suffix and
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# loads the contents of the file specified in the variable
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# into the variable without the suffix.
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for var_name in $(printenv | cut -d= -f1 | grep "_FILE$" || true); do
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# If variable is empty, skip.
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if [[ -z ${!var_name} ]]; then
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continue
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fi
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var_name_no_suffix=${var_name%"_FILE"}
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# If the variable without the suffix is already set, raise an error.
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if [[ -n ${!var_name_no_suffix} ]]; then
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echo "ERROR: Both ${var_name_no_suffix} and ${var_name} are set (but are exclusive)" >&2
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exit 1
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fi
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file_path="${!var_name}"
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# If file does not exist, raise an error.
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if [[ ! -f ${file_path} ]]; then
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echo "ERROR: File ${file_path} from ${var_name} does not exist" >&2
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exit 1
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fi
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echo "Setting ${var_name_no_suffix} from ${var_name} at ${file_path}"
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export "${var_name_no_suffix}"="$(cat "${file_path}")"
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# Unset the _FILE variable.
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unset "${var_name}"
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done
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# Set default values for environment variables used by nginx templates.
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# Nginx uses `envsubst` to load environment variables into configuration files, but it does not
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# support the default value syntax `${VAR:-default}`.
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: "${ROMM_PORT:=8080}"
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# Replace environment variables used in nginx configuration templates.
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/docker-entrypoint.d/20-envsubst-on-templates.sh >/dev/null
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exec "$@"
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