diff --git a/Dockerfile b/Dockerfile
index 76bc019..e359672 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -53,9 +53,14 @@ USER nobody:nobody
 
 COPY --from=build --chown=nobody:nobody /app/_build/prod/rel/app ./
 
-ENV HOME=/app
-ENV MIX_ENV=prod
-ENV SECRET_KEY_BASE=nokey
-ENV PORT=4000
+# set runner ENV
+ENV MIX_ENV="prod"
+
+# Only copy the final release from the build stage
+COPY --from=build --chown=nobody:root /app/_build/${MIX_ENV}/rel/app ./
+
+CMD ["/app/bin/server"]
 
-CMD ["bin/app", "start"]
\ No newline at end of file
+# Appended by flyctl
+ENV ECTO_IPV6 true
+ENV ERL_AFLAGS "-proto_dist inet6_tcp"
\ No newline at end of file
diff --git a/fly.toml b/fly.toml
index 4b97b2e..a0d1763 100644
--- a/fly.toml
+++ b/fly.toml
@@ -14,11 +14,11 @@ processes = []
   auto_rollback = true
 
 [[services]]
-  http_checks = []
+  # http_checks = []
   internal_port = 8080
   processes = ["app"]
   protocol = "tcp"
-  script_checks = []
+  # script_checks = []
   [services.concurrency]
     hard_limit = 25
     soft_limit = 20
@@ -34,7 +34,7 @@ processes = []
     port = 443
 
   [[services.tcp_checks]]
-    grace_period = "1s"
+    grace_period = "3s"
     interval = "15s"
-    restart_limit = 0
+    restart_limit = 6
     timeout = "2s"