Add inital devcontainer for blog and base

.devcontainer/blog.mads-hartmann.com/Dockerfile

@@ -0,0 +1,3 @@
+FROM mcr.microsoft.com/devcontainers/ruby:3.1
+ADD Gemfile Gemfile.lock .
+RUN bundle install

.devcontainer/blog.mads-hartmann.com/devcontainer.json

@@ -0,0 +1,16 @@
+{
+	"name": "blog.mads-hartmann.com",
+	"build": {
+		"dockerfile": "Dockerfile",
+		"context": "../../sites/blog.mads-hartmann.com"
+	},
+	"workspaceMount": "source=${localWorkspaceFolder}/sites/blog.mads-hartmann.com,target=/workspace,type=bind",
+	"workspaceFolder": "/workspace",
+	"postStartCommand": "bundle exec jekyll serve --watch --drafts --source src",
+	"portsAttributes": {
+		"4000": {
+			"label": "Jekyll",
+			"onAutoForward": "notify"
+		}
+	}
+}

.devcontainer/devcontainer.json

@@ -0,0 +1,4 @@
+{
+	"name": "mads-hartmann.com",
+    "image": "mcr.microsoft.com/devcontainers/base:alpine"
+}

sites/blog.mads-hartmann.com/Gemfile

@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
-gem "jekyll", "~> 4.1.1"
+gem "jekyll", "~> 4.3.3"
 gem "jekyll-seo-tag", "~> 2.6"
 gem 'jekyll-sitemap', "~> 1.4.0"
 gem 'jekyll-feed', "~> 0.15.0"

sites/blog.mads-hartmann.com/Gemfile.lock

@@ -1,74 +1,78 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.6)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.10)
+    concurrent-ruby (1.2.3)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
-    ffi (1.15.5)
+    ffi (1.16.3)
     forwardable-extended (2.6.0)
+    google-protobuf (3.25.2)
     http_parser.rb (0.8.0)
-    i18n (1.10.0)
+    i18n (1.14.1)
       concurrent-ruby (~> 1.0)
-    jekyll (4.1.1)
+    jekyll (4.3.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
       i18n (~> 1.0)
-      jekyll-sass-converter (~> 2.0)
+      jekyll-sass-converter (>= 2.0, < 4.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.1)
+      kramdown (~> 2.3, >= 2.3.1)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.4.0)
+      mercenary (>= 0.3.6, < 0.5)
       pathutil (~> 0.9)
-      rouge (~> 3.0)
+      rouge (>= 3.0, < 5.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 1.8)
+      terminal-table (>= 1.8, < 4.0)
+      webrick (~> 1.7)
     jekyll-feed (0.15.1)
       jekyll (>= 3.7, < 5.0)
-    jekyll-sass-converter (2.2.0)
-      sassc (> 2.0.1, < 3.0)
+    jekyll-sass-converter (3.0.0)
+      sass-embedded (~> 1.54)
     jekyll-seo-tag (2.8.0)
       jekyll (>= 3.8, < 5.0)
     jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (2.3.2)
+    kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
-    liquid (4.0.3)
-    listen (3.7.1)
+    liquid (4.0.4)
+    listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.7)
-    rb-fsevent (0.11.1)
+    public_suffix (5.0.4)
+    rake (13.1.0)
+    rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
-    rouge (3.28.0)
+    rexml (3.2.6)
+    rouge (4.2.0)
     safe_yaml (1.0.5)
-    sassc (2.4.0)
-      ffi (~> 1.9)
-    terminal-table (1.8.0)
-      unicode-display_width (~> 1.1, >= 1.1.1)
-    unicode-display_width (1.8.0)
-    webrick (1.7.0)
+    sass-embedded (1.70.0)
+      google-protobuf (~> 3.25)
+      rake (>= 13.0.0)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
+    unicode-display_width (2.5.0)
+    webrick (1.8.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (~> 4.1.1)
+  jekyll (~> 4.3.3)
   jekyll-feed (~> 0.15.0)
   jekyll-seo-tag (~> 2.6)
   jekyll-sitemap (~> 1.4.0)