How to Route Spring Cloud Gateway with Spring Authorization Server Downstream

Question

what would be a recommended way of configuring Spring Cloud Gateway that routes Spring Authorization Server with hostname route without colliding paths.

for example:

• /login gets routed to the /login of the auth server, without having the gateway match is own local /login due to gateway's spring security.

Answer 1

When accessing http://dummy.traefik.me/login does not go through the security filter chain, if so, I think it can be done like this

 private ServerWebExchangeMatcher getSecurityMatcher() {
        return exchange -> {
            URI uri = exchange.getRequest().getURI();
            if (uri.getHost().equals("dummy.traefik.me")) {
                return ServerWebExchangeMatcher.MatchResult.notMatch();
            }
            return ServerWebExchangeMatcher.MatchResult.match();
        };
    }

    @Bean
    SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
        http
                .securityMatcher(getSecurityMatcher())
                .authorizeExchange(authorizeRequests -> authorizeRequests
                        .anyExchange()
                        .authenticated()
                )
                .formLogin(withDefaults())
                .logout(withDefaults());

        return http.build();
    }