core/postgresql/postgresql.install

post_install() {
  if [ ! -d '/var/lib/postgres' ]; then
    mkdir -p '/var/lib/postgres'
  fi

  getent group postgres >/dev/null || groupadd -g 88 postgres
  getent passwd postgres >/dev/null || useradd -c 'PostgreSQL user' -u 88 -g postgres -d '/var/lib/postgres' -s /bin/bash postgres
  passwd -l postgres >/dev/null
}

post_upgrade() {
  post_install $1
  # FS#23858, fix postgres user shell issue
  postgres_shell="$(getent passwd postgres | cut -d: -f7)"
  if [ "${postgres_shell}" = "/sbin/nologin" ]; then
    chsh -s /bin/bash postgres
  fi
}

post_remove() {
  if getent passwd postgres >/dev/null; then
    userdel postgres
  fi

  if getent group postgres >/dev/null; then
    groupdel postgres
  fi
}

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