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fix(ci3): make redis_setexz a no-op instead of crashing bootstrap_ec2 when redis is unavailable #24535

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fix(ci3): make redis_setexz a no-op instead of crashing bootstrap_ec2 when redis is unavailable #24535

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9 changes: 8 additions & 1 deletion ci3/source_redis
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Original file line number Diff line number Diff line change
Expand Up @@ -81,7 +81,14 @@ function redis_cli {
}

function redis_setexz {
gzip | redis_cli -x SETEX $1 $2 &>/dev/null
if [ "$CI_REDIS_AVAILABLE" -eq 1 ]; then
gzip | redis_cli -x SETEX $1 $2 &>/dev/null
else
# Redis is a no-op here, but we must still drain stdin. Otherwise gzip writes into a
# pipe whose reader never runs, takes SIGPIPE, and aborts the caller under pipefail
# (e.g. bootstrap_ec2's early "CI booting..." write when no redis is reachable).
cat >/dev/null
fi
}

function redis_getz {
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