05abbc5250
Introduces PgBouncer as a connection pooler between the API service and PostgreSQL in docker-compose.prod.yml, reducing connection overhead and improving concurrency under production load. - Add PgBouncer service (edoburu/pgbouncer:1.23.1-p2) with transaction pool mode, max_client_conn=200, default_pool_size=20 - Route API DATABASE_URL through PgBouncer (port 6432), keep direct connection (DATABASE_URL_DIRECT) for Prisma migrations/introspection - Create infra/pgbouncer/ config: pgbouncer.ini, userlist template, and entrypoint script with runtime env-var substitution - Update prisma.config.ts to prefer DATABASE_URL_DIRECT for migrations - Add K6 load test (e2e/load/pgbouncer-pool-test.js) with ramp-up to 200 VUs, pool exhaustion detection, and p95 < 2s threshold - Add PgBouncer env vars to .env.example Co-Authored-By: Paperclip <noreply@paperclip.ing>
32 lines
1.2 KiB
Bash
Executable File
32 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# =============================================================================
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# PgBouncer entrypoint — render userlist from environment variables and start.
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# =============================================================================
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set -eu
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USERLIST_TEMPLATE="/etc/pgbouncer/userlist.txt.template"
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USERLIST="/etc/pgbouncer/userlist.txt"
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if [ -z "${DB_USER:-}" ] || [ -z "${DB_PASSWORD:-}" ]; then
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echo "ERROR: DB_USER and DB_PASSWORD must be set" >&2
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exit 1
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fi
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# Render userlist from template, substituting env vars
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envsubst < "$USERLIST_TEMPLATE" > "$USERLIST"
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chmod 600 "$USERLIST"
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echo "PgBouncer userlist rendered for user: ${DB_USER}"
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echo "Starting PgBouncer on port 6432 (pool_mode=transaction, pool_size=${PGBOUNCER_POOL_SIZE:-20})..."
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# Override pool settings via env vars if provided
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if [ -n "${PGBOUNCER_POOL_SIZE:-}" ]; then
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sed -i "s/^default_pool_size = .*/default_pool_size = ${PGBOUNCER_POOL_SIZE}/" /etc/pgbouncer/pgbouncer.ini
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fi
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if [ -n "${PGBOUNCER_MAX_CLIENT_CONN:-}" ]; then
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sed -i "s/^max_client_conn = .*/max_client_conn = ${PGBOUNCER_MAX_CLIENT_CONN}/" /etc/pgbouncer/pgbouncer.ini
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fi
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exec pgbouncer /etc/pgbouncer/pgbouncer.ini
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