Support versioned PolarDB install path in Sealos image

Author: im0x0ing

docker/sealos/Dockerfile

@@ -5,8 +5,12 @@ COPY polardb-entrypoint.sh /usr/local/bin/polardb-entrypoint.sh
 
 RUN rpm -ivh /tmp/PolarDB-*.rpm \
     && (id postgres >/dev/null 2>&1 || useradd -m postgres) \
+    && POLARDB_INSTALL_DIR="$(find /u01 -maxdepth 3 -type f -path '*/bin/postgres' -print -quit | sed 's#/bin/postgres##')" \
+    && test -n "$POLARDB_INSTALL_DIR" \
+    && if [ "$POLARDB_INSTALL_DIR" != "/u01/polardb_pg" ]; then ln -sfn "$POLARDB_INSTALL_DIR" /u01/polardb_pg; fi \
     && mkdir -p /var/lib/polardb \
-    && chown -R postgres:postgres /var/lib/polardb /u01/polardb_pg \
+    && chown -R postgres:postgres /var/lib/polardb "$POLARDB_INSTALL_DIR" \
+    && chown -h postgres:postgres /u01/polardb_pg \
     && chmod +x /usr/local/bin/polardb-entrypoint.sh \
     && rm -f /tmp/PolarDB-*.rpm