mirror of
https://github.com/mulgadc/spinifex.git
synced 2026-10-19 10:52:04 +00:00
Julian Sommer
64 lines
2.0 KiB
Bash
Executable File
64 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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# rds-datadir is shared by every engine preset and refuses to guess a layout, so
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# each preset's service is the only statement of where its volume mounts and who
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# owns it. A preset that stopped exporting them would fail closed at boot; a
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# preset that exported another engine's would mount the customer's volume where
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# its engine is not looking, which reads as an empty datadir.
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SCRIPT_DIR=$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd)
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IMAGES=$(CDPATH='' cd -- "${SCRIPT_DIR}/.." && pwd)
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WORK=$(mktemp -d)
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trap 'rm -rf "${WORK}"' EXIT
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FAILS=0
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fail() { echo "FAIL: $*" >&2; FAILS=$((FAILS + 1)); }
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pass() { echo "ok: $*"; }
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# Sourced rather than executed: start_pre is what OpenRC runs, and the values it
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# exports are what reach the mount script.
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layout() {
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(
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# shellcheck disable=SC1090
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. "${IMAGES}/$1/rds-datadir.initd"
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# Read by the sourced start_pre, which shellcheck cannot see.
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export AGENT_ENV="$2"
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start_pre
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printf '%s %s\n' "${RDS_DATA_MOUNT:-}" "${RDS_ENGINE_USER:-}"
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)
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}
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check_preset() {
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_preset=$1
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_mount=$2
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_user=$3
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_got=$(layout "${_preset}" "${WORK}/absent.env")
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if [ "${_got}" = "${_mount} ${_user}" ]; then
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pass "${_preset}: exports ${_mount} owned by ${_user}"
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else
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fail "${_preset}: exports '${_got}', want '${_mount} ${_user}'"
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fi
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# The control plane can move the mount point without a rebuild, so a
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# delivered value has to win over the image's own default.
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printf "RDS_DATA_MOUNT=%s\n" "${WORK}/delivered" > "${WORK}/agent.env"
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_got=$(layout "${_preset}" "${WORK}/agent.env")
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if [ "${_got}" = "${WORK}/delivered ${_user}" ]; then
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pass "${_preset}: a delivered mount point wins"
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else
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fail "${_preset}: delivered mount point ignored, got '${_got}'"
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fi
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}
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check_preset rds-postgres /var/lib/postgresql postgres
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check_preset rds-mariadb /var/lib/mysql mysql
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if [ "${FAILS}" -eq 0 ]; then
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echo "rds-datadir.initd: all presets state their layout"
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exit 0
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fi
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echo "FAILED: ${FAILS} case(s)"
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exit 1
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