mirror of
https://github.com/mulgadc/spinifex.git
synced 2026-10-20 03:11:46 +00:00
Julian Sommer
dafb001e06
Define the composite engine interface and a newEngine() factory keyed by a per-engine layout table, so the agent's defaults, health probe and command implementation all come from the engine the image bakes rather than from PostgreSQL-shaped constants. Rename PGBin/PGData/PGUser to EngineBinDir/EngineDataDir/EngineUser, delete PGIsReady, and give engineProbe an injected state function with the pg_isready exit-code mapping moved into the PostgreSQL implementation. setup.sh now stamps /etc/spinifex-rds/engine and buildAgentUserData emits RDS_ENGINE. The agent compares the two after registering and refuses to run when they disagree, reporting unhealthy before the bootstrap handoff is written so rds-init never unblocks and no datadir is touched.
49 lines
1.4 KiB
Bash
49 lines
1.4 KiB
Bash
#!/bin/sh
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set -eu
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SCRIPT_DIR=$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd)
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CASE=$(mktemp -d)
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trap 'rm -rf "${CASE}"' EXIT
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source_time_handoff="${CASE}/source-time"
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configured_handoff="${CASE}/configured"
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mkdir -p "${configured_handoff}"
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touch "${configured_handoff}/bootstrap.env"
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{
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printf 'RDS_HANDOFF_DIR=%s\n' "${configured_handoff}"
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printf 'RDS_ENGINE=postgres\n'
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} >"${CASE}/agent.env"
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# Simulate OpenRC sourcing the service before start_pre loads agent.env.
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export RDS_HANDOFF_DIR="${source_time_handoff}"
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# shellcheck source=rds-agent.initd
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. "${SCRIPT_DIR}/rds-agent.initd"
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export AGENT_ENV="${CASE}/agent.env"
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export handoff_timeout=0
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EEND_STATUS=
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ebegin() { :; }
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einfo() { :; }
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eend() { EEND_STATUS=$1; }
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start_pre
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start_post
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if [ "${HANDOFF_ENV}" != "${configured_handoff}/bootstrap.env" ]; then
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echo "FAIL: handoff path did not use RDS_HANDOFF_DIR from agent.env" >&2
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exit 1
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fi
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if [ "${EEND_STATUS}" != "0" ]; then
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echo "FAIL: post-start wait did not find the configured handoff" >&2
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exit 1
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fi
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# The agent checks this against the engine its own image bakes. Left out of the
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# export list it would read as no assertion at all, so a VM launched as the
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# wrong engine would bootstrap instead of refusing.
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if [ "${RDS_ENGINE:-}" != "postgres" ]; then
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echo "FAIL: start_pre did not export RDS_ENGINE from agent.env" >&2
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exit 1
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fi
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echo "rds-agent.initd: all tests passed"
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