First

lib/tasks/mrsk/app.rake

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+require_relative "setup"
+
+app = Mrsk::Commands::App.new(MRSK_CONFIG)
+
+namespace :mrsk do
+  namespace :app do
+    desc "Build and push app image to servers"
+    task :push do
+      run_locally             { execute app.push }
+      on(MRSK_CONFIG.servers) { execute app.pull }
+    end
+
+    desc "Start app on servers"
+    task :start do
+      on(MRSK_CONFIG.servers) { execute app.start }
+    end
+
+    desc "Stop app on servers"
+    task :stop do
+      on(MRSK_CONFIG.servers) { execute app.stop, raise_on_non_zero_exit: false }
+    end
+
+    desc "Restart app on servers"
+    task restart: %i[ stop start ]
+
+    desc "Display information about app containers"
+    task :info do
+      on(MRSK_CONFIG.servers) { |host| puts "Host: #{host}\n" + capture(app.info) + "\n\n" }
+    end
+  end
+end

lib/tasks/mrsk/mrsk.rake

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+namespace :mrsk do
+  desc "Push the latest version of the app, ensure Traefik is running, then restart app"
+  task deploy: [ "app:push", "traefik:start", "app:restart" ]
+
+  desc "Display information about Traefik and app containers"
+  task info: [ "traefik:info", "app:info" ]
+
+  desc "Create config stub"
+  task :init do
+    Rails.root.join("config/deploy.yml")
+  end
+end

lib/tasks/mrsk/registry.rake

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+require_relative "setup"
+
+registry = Mrsk::Commands::Registry.new
+
+namespace :mrsk do
+  namespace :registry do
+    desc "Login to the registry using ENV['DOCKER_USER'] and ENV['DOCKER_PASSWORD']"
+    task :login do
+      if ENV["DOCKER_USER"].present? && ENV["DOCKER_PASSWORD"].present?
+        run_locally             { execute registry.login }
+        on(MRSK_CONFIG.servers) { execute registry.login }
+      else
+        puts "Skipping login due to missing ENV['DOCKER_USER'] and ENV['DOCKER_PASSWORD']"
+      end
+    end
+  end
+end

lib/tasks/mrsk/setup.rb

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+require "sshkit"
+require "sshkit/dsl"
+
+include SSHKit::DSL
+
+MRSK_CONFIG = Mrsk::Configuration.load_file(Rails.root.join("config/deploy.yml"))
+
+SSHKit::Backend::Netssh.configure do |ssh|
+  ssh.ssh_options = { user: MRSK_CONFIG.ssh_user, auth_methods: [ "publickey" ] }
+end

lib/tasks/mrsk/traefik.rake

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+require_relative "setup"
+
+traefik = Mrsk::Commands::Traefik.new
+
+namespace :mrsk do
+  namespace :traefik do
+    desc "Start Traefik"
+    task :start do
+      on(MRSK_CONFIG.servers) { execute traefik.start, raise_on_non_zero_exit: false }
+    end
+
+    desc "Stop Traefik"
+    task :stop do
+      on(MRSK_CONFIG.servers) { execute traefik.stop, raise_on_non_zero_exit: false }
+    end
+
+    desc "Restart Traefik"
+    task restart: %i[ stop start ]
+
+    desc "Display information about Traefik containers"
+    task :info do
+      on(MRSK_CONFIG.servers) { |host| puts "Host: #{host}\n" + capture(traefik.info) + "\n\n" }
+    end
+  end
+end