Add healthcheck to docker-compose.yml

Adds a healthcheck that can be used for monitoring or autohealing.

docker-compose.yml

@@ -18,6 +18,10 @@ services:
       - 8080:8080
     networks:
       - teddit_net
+    healthcheck:
+      test: ["CMD", "wget" ,"--no-verbose", "--tries=1", "--spider", "http://localhost:8080/about"]
+      interval: 1m
+      timeout: 3s
     depends_on:
       - redis
 networks: