chore: import upstream snapshot with attribution

testing/replication-test-entrypoint.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# exit if any command exits wtih non-zero
+set -e
+
+# run the original postgres setup
+/usr/local/bin/docker-ensure-initdb.sh -c wal_level=logical
+
+# Modify the WAL replication settings
+echo "wal_level = logical" >> /var/lib/postgresql/data/postgresql.conf
+
+# Start PostgreSQL as the postgres user
+sudo -u postgres /usr/lib/postgresql/16/bin/pg_ctl \
+     -D /var/lib/postgresql/data \
+     -l /var/lib/postgresql/data/logfile \
+     start
+
+# Wait for PostgreSQL to become ready for requests
+until pg_isready -h localhost -p 5432
+do
+  echo "Waiting for PostgreSQL to become ready..."
+  sleep 1
+done
+
+# Run the Go test
+go test -run="TestReplication" ./...
+
+# Run the bats test
+cd testing/bats
+bats replication.bats