lb and health check

.gitignore

@@ -1 +1,3 @@
 /data/certbot
+*.log
+old

data/nginx/sites/kameronkenny_com.conf

@@ -1,3 +1,9 @@
+upstream kameronkenny_com {
+    server 10.99.22.51:4000;
+    server 10.99.22.52:4000;
+    server 10.99.22.53:4000;
+}
+
 server {
     listen 80;
     server_name kameronkenny.com www.kameronkenny.com blog.kameronkenny.com photos-test.kameronkenny.com;
@@ -23,7 +29,7 @@ server {
     ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
 
     location / {
-        proxy_pass  http://10.99.22.51:4000;
+        proxy_pass  http://kameronkenny_com;
         proxy_set_header    Host                $http_host;
         proxy_set_header    X-Real-IP           $remote_addr;
         proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;

docker-compose.yml

@@ -7,6 +7,10 @@ volumes:
   certbot_www: 
     driver: local
 
+networks:
+  pub_lb_net:
+    external: true
+
 services:
   nginx:
     image: nginx:1.15-alpine
@@ -15,10 +19,10 @@ services:
       - ./data/nginx:/etc/nginx/conf.d
       - ./data/certbot/conf:/etc/letsencrypt
       - ./data/certbot/www:/var/www/certbot
-    ports:
-      - "80:80"
-      - "443:443"
     command: "/bin/sh -c 'while :; do sleep 6h & wait $${!}; nginx -s reload; done & nginx -g \"daemon off;\"'"
+    networks:
+      pub_lb_net:
+        ipv4_address: 10.99.81.241
   certbot:
     image: certbot/certbot
     restart: unless-stopped

health_check.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+TIMEOUT=2
+
+function no_good {
+	cd /home/kkenny/src/docker/nginx-certbot
+	echo "[$(date)] $1 has failed, restarting." >> health.log
+	docker compose down >> health.log 2>&1
+       	docker compose up -d >> health.log 2>&1
+	exit 1
+}
+
+curl -s --connect-timeout $TIMEOUT https://kameronkenny.com >/dev/null 2>&1 || no_good "kameronkenny.com"
+curl -s --connect-timeout $TIMEOUT https://thelinux.pro >/dev/null 2>&1 || no_good "thelinux.pro"