Route53 DNS health check (for Nginx)

Hello, I'm Kundu 🍀

 

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.html

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.html

Goal

- Customer incoming through Nginx(NOT Nginx Plus), and Nginx doesn't support failover like ha-proxy. 

   I'd like to use dns-failover for stable service.

 

Setup

 

[Route53] - [Health checks] 

1. Set your Name 
2. Select what to monitor, I select Endpoint
3. Endpoint setup
   1. Public IP address for each Nginx
   2. Host name (I add this '/etc/nginx/conf.d/443_health.conf' --> server_name health.mydomain.com)
   3. HTTPS (443)
   4. Path for Nginx (in my case: /etc/nginx/html/status/health.html) 
   5. set health.html  ( $ echo "alive" > health.html )
4. Set String matching 'Yes'
5. Search string 'alive', I already set 'STEP 3-5'
6. Set Health checker regions

 

 

 

Now I have 2 Health checks

 

[Route53] - [Hosted zones]

Add 2 Record Sets

Edit Record Set each.

• Routing Policy is up to you. (Multiplevalue Answer, 
• Health Check to Associate must same IP address (Alias Values)