distroless

Dockerfile

@@ -48,7 +48,8 @@ RUN mix compile
 COPY config/runtime.exs config/
 
 COPY rel rel
-RUN mix release
+RUN mix release && \
+    chmod +x /app/_build/prod/rel/aprs/bin/server /app/_build/prod/rel/aprs/bin/aprs
 
 # Final distroless stage
 FROM ${RUNNER_IMAGE}
@@ -78,5 +79,5 @@ LABEL org.opencontainers.image.vendor="APRS.me" \
     security.nonroot="true"
 
 # Run the server
-ENTRYPOINT ["/app/bin/aprs"]
+ENTRYPOINT ["/app/bin/server"]
 EXPOSE $PORT

app.json

@@ -7,17 +7,23 @@
       "postdeploy": ""
     }
   },
-  "checks": {
+  "healthchecks": {
     "web": [
       {
-        "type": "http",
-        "name": "web-health",
-        "path": "/health",
-        "attempts": 3,
-        "timeout": 5,
-        "wait": 10,
-        "initial_delay": 10
+        "type": "startup",
+        "name": "web process check",
+        "description": "Checking web process startup",
+        "path": "/ready",
+        "attempts": 5,
+        "timeout": 10,
+        "wait": 5,
+        "initial_delay": 15
       }
     ]
+  },
+  "formation": {
+    "web": {
+      "quantity": 1
+    }
   }
 }

lib/aprs_web/controllers/page_controller.ex

@@ -14,6 +14,46 @@ defmodule AprsWeb.PageController do
   end
 
   def health(conn, _params) do
-    json(conn, %{status: "ok", version: Application.spec(:aprs, :vsn)})
+    # Check database connection
+    db_healthy =
+      try do
+        Aprs.Repo.query!("SELECT 1")
+        true
+      rescue
+        _ -> false
+      end
+
+    # Get application version
+    version = :aprs |> Application.spec(:vsn) |> List.to_string()
+
+    if db_healthy do
+      json(conn, %{
+        status: "ok",
+        version: version,
+        database: "connected",
+        timestamp: DateTime.utc_now()
+      })
+    else
+      conn
+      |> put_status(503)
+      |> json(%{
+        status: "error",
+        version: version,
+        database: "disconnected",
+        timestamp: DateTime.utc_now()
+      })
+    end
+  end
+
+  def ready(conn, _params) do
+    # Simple readiness check without database dependency
+    # This is faster for startup health checks
+    version = :aprs |> Application.spec(:vsn) |> List.to_string()
+
+    json(conn, %{
+      status: "ready",
+      version: version,
+      timestamp: DateTime.utc_now()
+    })
   end
 end

lib/aprs_web/router.ex

@@ -20,6 +20,7 @@ defmodule AprsWeb.Router do
   scope "/", AprsWeb do
     pipe_through :api
     get "/health", PageController, :health
+    get "/ready", PageController, :ready
   end
 
   scope "/", AprsWeb do