Spring Boot Actuator Health Returning DOWN

Question

When I access the /health endpoint from my Spring Boot application (1.2.4.RELEASE) it is returning a status of DOWN:

{
    status: \"DO         


        

Answer 1

I built a filter to log the health response when it fails.

package br.gov.go.sspj.k9.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint;
import org.springframework.stereotype.Component;

import lombok.extern.slf4j.Slf4j;

@Slf4j
@Component
public class BadHealthCheckLogFilter implements Filter {

  private @Autowired HealthMvcEndpoint hme;

  @Override
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    chain.doFilter(request, response);
    HttpServletRequest req = (HttpServletRequest) request;
    HttpServletResponse res = (HttpServletResponse) response;
    if (req.getRequestURI().endsWith("/health") && res.getStatus() != 200)
      log.error(hme.invoke(req, null).toString());
  }

  @Override
  public void init(FilterConfig filterConfig) {
  }

  @Override
  public void destroy() {
  }
}