add db dump

Gemfile

@@ -49,3 +49,4 @@ group :development do
 end
 
 gem 'devise'
+gem 'rufus-scheduler'

Gemfile.lock

@@ -108,6 +108,11 @@ GEM
     erb (4.0.4)
       cgi (>= 0.3.3)
     erubi (1.13.1)
+    et-orbi (1.4.0)
+      tzinfo
+    fugit (1.12.1)
+      et-orbi (~> 1.4)
+      raabro (~> 1.4)
     globalid (1.3.0)
       activesupport (>= 6.1)
     i18n (1.14.7)
@@ -172,6 +177,7 @@ GEM
       stringio
     puma (7.1.0)
       nio4r (~> 2.0)
+    raabro (1.4.0)
     racc (1.8.1)
     rack (3.2.4)
     rack-session (2.1.1)
@@ -222,6 +228,8 @@ GEM
     responders (3.2.0)
       actionpack (>= 7.0)
       railties (>= 7.0)
+    rufus-scheduler (3.9.2)
+      fugit (~> 1.1, >= 1.11.1)
     securerandom (0.3.2)
     sprockets (4.2.2)
       concurrent-ruby (~> 1.0)
@@ -267,6 +275,7 @@ DEPENDENCIES
   pg (~> 1.1)
   puma (>= 5.0)
   rails (~> 7.1.5, >= 7.1.5.2)
+  rufus-scheduler
   sprockets-rails
   turbolinks (~> 5)
   tzinfo-data

app/jobs/daily_dump_job.rb

@@ -0,0 +1,14 @@
+# app/jobs/daily_dump_job.rb
+class DailyDumpJob < ApplicationJob
+  queue_as :default
+  
+  def perform
+    zip_path = DumpService.perform
+    if zip_path
+      DumpMailer.daily_dump(zip_path).deliver_now
+      File.delete(zip_path) if File.exist?(zip_path)
+    else
+      Rails.logger.error "[DailyDumpJob] Dump fehlgeschlagen."
+    end
+  end
+end

app/mailers/dump_mailer.rb

@@ -0,0 +1,13 @@
+class DumpMailer < ApplicationMailer
+	default from: "paktikum@marzell.net"
+	
+	def daily_dump(zip_path)
+		attachments[File.basename(zip_path)] = File.read(zip_path)
+		mail(
+			to: "christoph@marzell.net",
+			subject: "📦 Täglicher SQL Dump"
+		) do |format|
+			format.text { render plain: "Dump im Anhang." }
+		end
+	end
+end

app/services/dump_service.rb

@@ -0,0 +1,31 @@
+# app/services/dump_service.rb
+class DumpService
+	def self.perform
+		timestamp = Time.current.strftime("%Y%m%d_%H%M%S")
+		filename = "dump_#{timestamp}.sql"
+		filepath = Rails.root.join("tmp", filename)
+		
+		db_config = ActiveRecord::Base.connection_db_config.configuration_hash
+		ENV["PGPASSWORD"] = db_config[:password].to_s
+		
+		cmd = [
+			"pg_dump",
+			"-U", db_config[:username].to_s,
+			"-h", (db_config[:host] || "localhost").to_s,
+			"-p", (db_config[:port] || 5432).to_s,
+			db_config[:database].to_s,
+			"-f", filepath.to_s
+		]
+		
+		success = system(*cmd)
+		ENV["PGPASSWORD"] = nil
+		
+		return nil unless success
+		
+		zip_path = "#{filepath}.zip"
+		`zip -j #{zip_path} #{filepath}`
+		File.delete(filepath) if File.exist?(filepath)
+		
+		zip_path
+	end
+end

config/initializers/dump_scheduler.rb

@@ -0,0 +1,12 @@
+# config/initializers/dump_scheduler.rb
+
+require 'rufus-scheduler'
+
+return unless Rails.env.production? || Rails.env.development?
+
+scheduler = Rufus::Scheduler.singleton
+
+scheduler.cron '0 2 * * *' do
+	Rails.logger.info "[Scheduler] Starte täglichen Dump-Versand"
+	DailyDumpJob.perform_later
+end