From e99878315559c2dac68030f7e707179f6faae2fb Mon Sep 17 00:00:00 2001
From: Kevin McConnell <kevin@37signals.com>
Date: Thu, 5 Jun 2025 11:54:12 +0100
Subject: [PATCH] Use VFS-based Beamer

---
 Dockerfile                    |  2 +-
 config/database.yml           |  2 +-
 config/deploy.staging.yml     |  2 +-
 config/initializers/beamer.rb | 19 +++++++++++++++++++
 4 files changed, 22 insertions(+), 3 deletions(-)
 create mode 100644 config/initializers/beamer.rb

diff --git a/Dockerfile b/Dockerfile
index 64436b2bd..e2308f371 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -39,7 +39,7 @@ RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
 
 
 # Fetch beamer library
-FROM basecamp/beamer:latest AS beamer
+FROM basecamp/beamer:vfs AS beamer
 
 
 # Final stage for app image
diff --git a/config/database.yml b/config/database.yml
index 0ab08729c..1dd1481c7 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -40,7 +40,7 @@ test:
 production: &production
   primary:
     <<: *default
-    database: storage/tenants/<%= Rails.env %>/%{tenant}/db/main.sqlite3
+    database: file:storage/tenants/<%= Rails.env %>/%{tenant}/db/main.sqlite3?vfs=beamer
     tenanted: true
     extensions:
       - ./bin/lib/beamer.so
diff --git a/config/deploy.staging.yml b/config/deploy.staging.yml
index 61c673377..efb8d36c7 100644
--- a/config/deploy.staging.yml
+++ b/config/deploy.staging.yml
@@ -21,7 +21,7 @@ env:
     RAILS_ENV: staging
 
 x-beamer-accessory: &beamer-accessory
-  image: basecamp/beamer
+  image: basecamp/beamer:vfs
   registry:
     username: bcbot
     password:
diff --git a/config/initializers/beamer.rb b/config/initializers/beamer.rb
new file mode 100644
index 000000000..9bc841182
--- /dev/null
+++ b/config/initializers/beamer.rb
@@ -0,0 +1,19 @@
+# This is a temporary shim to load the Beamer VFS prior to opening the tenanted
+# databases that use it.
+#
+# It's here to get around the fact that the VFS needs to be registed before the
+# databases are opened, so we can't rely on the normal extension loading to do
+# it.
+#
+# We'll move this responsibility into a Beamer gem soon, at which point this
+# file will be removed.
+
+Rails.application.config.after_initialize do
+  beamer_extension_path = Rails.root.join("bin/lib/beamer.so")
+
+  if beamer_extension_path.exist?
+    db = SQLite3::Database.new ":memory:"
+    db.enable_load_extension(true)
+    db.load_extension(beamer_extension_path)
+  end
+end