Deprecate warmup_apps.sh in favour of warmup_apps (#2305)

README.md

@@ -190,7 +190,7 @@ The following environment variables can be used to configure Livebook on boot:
   * LIVEBOOK_APPS_PATH_WARMUP - sets the warmup mode for apps deployed from
     LIVEBOOK_APPS_PATH. Must be either "auto" (apps are warmed up on Livebook
     startup, right before app deployment) or "manual" (apps are warmed up when
-    building the Docker image; to do so add "RUN /app/bin/warmup_apps.sh" to
+    building the Docker image; to do so add "RUN /app/bin/warmup_apps" to
     your image). Defaults to "auto".
 
   * LIVEBOOK_BASE_URL_PATH - sets the base url path the web application is

lib/livebook/hubs/dockerfile.ex

@@ -113,7 +113,7 @@ defmodule Livebook.Hubs.Dockerfile do
 
     apps_warmup = """
     # Cache apps setup at build time
-    RUN /app/bin/warmup_apps.sh
+    RUN /app/bin/warmup_apps
     """
 
     random_secret_key_base = Livebook.Utils.random_secret_key_base()

rel/server/overlays/bin/warmup_apps

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+cd -P -- "$(dirname -- "$0")"
+exec ./livebook eval Livebook.Release.warmup_apps

rel/server/overlays/bin/warmup_apps.sh

@@ -1,4 +1,6 @@
 #!/bin/sh
 
+echo "Using warmup_apps.sh is deprecated. Please use warmup_apps instead."
+
 cd -P -- "$(dirname -- "$0")"
 exec ./livebook eval Livebook.Release.warmup_apps

test/livebook/hubs/dockerfile_test.exs

@@ -31,7 +31,7 @@ defmodule Livebook.Hubs.DockerfileTest do
              COPY notebook.livemd /apps/
 
              # Cache apps setup at build time
-             RUN /app/bin/warmup_apps.sh
+             RUN /app/bin/warmup_apps
              """
 
       # With secrets
@@ -113,7 +113,7 @@ defmodule Livebook.Hubs.DockerfileTest do
              COPY notebook.livemd /apps/
 
              # Cache apps setup at build time
-             RUN /app/bin/warmup_apps.sh
+             RUN /app/bin/warmup_apps
              """
 
       # With secrets