.devcontainer/devcontainer.json

@@ -3,15 +3,17 @@
 {
 	"name": "Ruby",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/ruby:1-3.3-bookworm",
+	"image": "ghcr.io/rails/devcontainer/images/ruby:3.4.2",
 
 	"containerEnv": {
 		"VISUAL": "code --wait",
 		"TELEGRAM_DEFAULT_TARGET": "6828310083" // group:"-4715072196"
-	}
+	},
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
-	// "features": {},
+	"features": {
+    	"ghcr.io/rails/devcontainer/features/activestorage": {}
+  	}
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],

.tool-versions

-ruby 3.4.1
+ruby 3.4.2

Dockerfile

@@ -2,8 +2,8 @@
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
 # renovate: datasource=docker depName=registry.docker.com/library/ruby
-ARG RUBY_VERSION=3.4.1
-FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim AS base
+ARG RUBY_VERSION=3.4.2
+FROM registry.docker.com/library/ruby:$RUBY_VERSION AS base
 
 # Rails app lives here
 WORKDIR /rails

Gemfile

 source "https://rubygems.org"
 
-ruby "3.4.1"
+ruby "3.4.2"
 
 gem "rails", "~> 8.0.1"
 

Gemfile.lock

@@ -403,7 +403,7 @@ DEPENDENCIES
   web-console (> 0)
 
 RUBY VERSION
-   ruby 3.4.1p0
+   ruby 3.4.2p28
 
 BUNDLED WITH
    2.6.2

renovate.json

@@ -17,7 +17,8 @@
         "ruby",
         "ruby-version",
         "mcr.microsoft.com/devcontainers/ruby",
-        "registry.docker.com/library/ruby"
+        "registry.docker.com/library/ruby",
+        "ghcr.io/rails/devcontainer/images/ruby"
       ],
       "groupName": "ruby"
     }