Remove supervisor from the Falcon process?

Idk what it's doing, but what I do know is the Falcon process is
weirdly slow to restart on deploy. My hope was this would fix it cuz
the supervisor was maybe blocking process exits? Idk, something to look
into, I don't think this fixed it but I also don't think it broke
anything, and I think systemd is doing a fine job monitoring already?
idk

Gemfile

@@ -4,7 +4,11 @@ ruby '3.1.4'
 gem 'rails', '~> 7.1', '>= 7.1.1'
 
 # The HTTP server running the Rails instance.
+# NOTE: Once we're migrated, remove puma! I have both to allow the upgrade to
+# be incremental: push this out with `bin/deploy`, then change the service file
+# with `bin/deploy:setup`.
 gem 'puma', '~> 6.3', '>= 6.3.1'
+gem 'falcon', '~> 0.42.3'
 
 # Our database is MySQL, in both development and production.
 gem 'mysql2', '~> 0.5.5'

Gemfile.lock

@@ -87,6 +87,9 @@ GEM
       fiber-annotation
       io-event (~> 1.1)
       timers (~> 4.1)
+    async-container (0.16.12)
+      async
+      async-io
     async-http (0.61.0)
       async (>= 1.25)
       async-io (>= 1.28)
@@ -95,6 +98,8 @@ GEM
       protocol-http1 (~> 0.16.0)
       protocol-http2 (~> 0.15.0)
       traces (>= 0.10.0)
+    async-http-cache (0.4.3)
+      async-http (~> 0.56)
     async-io (1.37.0)
       async
     async-pool (0.4.0)
@@ -109,6 +114,7 @@ GEM
     bindex (0.8.1)
     bootsnap (1.16.0)
       msgpack (~> 1.2)
+    build-environment (1.13.0)
     builder (3.2.4)
     concurrent-ruby (1.2.2)
     connection_pool (2.2.5)
@@ -133,6 +139,19 @@ GEM
       ruby2_keywords
     erubi (1.12.0)
     execjs (2.5.2)
+    falcon (0.42.3)
+      async
+      async-container (~> 0.16.0)
+      async-http (~> 0.57)
+      async-http-cache (~> 0.4.0)
+      async-io (~> 1.22)
+      build-environment (~> 1.13)
+      bundler
+      localhost (~> 1.1)
+      openssl (~> 3.0)
+      process-metrics (~> 0.2.0)
+      protocol-rack (~> 0.1)
+      samovar (~> 2.1)
     ffi (1.15.5)
     fiber-annotation (0.2.0)
     fiber-local (1.0.0)
@@ -163,6 +182,7 @@ GEM
       addressable (~> 2.8)
     letter_opener (1.8.1)
       launchy (>= 2.2, < 3)
+    localhost (1.1.10)
     loofah (2.21.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -171,6 +191,7 @@ GEM
       net-imap
       net-pop
       net-smtp
+    mapping (1.1.1)
     marcel (1.0.2)
     memory_profiler (1.0.1)
     mini_mime (1.1.5)
@@ -193,8 +214,12 @@ GEM
     nokogiri (1.15.3)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
+    openssl (3.2.0)
     orm_adapter (0.5.0)
     parallel (1.23.0)
+    process-metrics (0.2.1)
+      console (~> 1.8)
+      samovar (~> 2.1)
     protocol-hpack (1.4.2)
     protocol-http (0.25.0)
     protocol-http1 (0.16.0)
@@ -202,10 +227,13 @@ GEM
     protocol-http2 (0.15.1)
       protocol-hpack (~> 1.4)
       protocol-http (~> 0.18)
+    protocol-rack (0.4.1)
+      protocol-http (~> 0.23)
+      rack (>= 1.0)
     psych (5.1.1.1)
       stringio
     public_suffix (5.0.3)
-    puma (6.4.0)
+    puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.1)
     rack (2.2.8)
@@ -272,6 +300,9 @@ GEM
       actionpack (>= 5.2)
       railties (>= 5.2)
     ruby2_keywords (0.0.5)
+    samovar (2.2.0)
+      console (~> 1.0)
+      mapping (~> 1.0)
     sanitize (6.0.2)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -338,6 +369,7 @@ DEPENDENCIES
   devise (~> 4.9, >= 4.9.2)
   devise-encryptable (~> 0.2.0)
   dotenv-rails (~> 2.8, >= 2.8.1)
+  falcon (~> 0.42.3)
   globalize (~> 6.2, >= 6.2.1)
   haml (~> 6.1, >= 6.1.1)
   http_accept_language (~> 2.1, >= 2.1.1)

app/controllers/pets_controller.rb

@@ -2,13 +2,13 @@ class PetsController < ApplicationController
   rescue_from Pet::PetNotFound, :with => :pet_not_found
   rescue_from PetType::DownloadError, SwfAsset::DownloadError, :with => :asset_download_error
   rescue_from Pet::DownloadError, :with => :pet_download_error
+  rescue_from Pet::ModelingDisabled, with: :modeling_disabled
 
   def load
     raise Pet::PetNotFound unless params[:name]
     @pet = Pet.load(
       params[:name],
       :item_scope => Item.includes(:translations),
-      :timeout => 1
     )
     points = contribute(current_user, @pet)
     
@@ -75,4 +75,9 @@ class PetsController < ApplicationController
       end
     end
   end
+
+  def modeling_disabled
+    pet_load_error long_message: t('pets.load.modeling_disabled'),
+      status: :forbidden
+  end
 end

app/models/pet.rb

@@ -17,7 +17,9 @@ class Pet < ApplicationRecord
     joins(:pet_type).where(PetType.arel_table[:id].in(color_ids))
   }
 
+  class ModelingDisabled < RuntimeError;end
   def load!(options={})
+    raise ModelingDisabled
     options[:locale] ||= I18n.default_locale
     I18n.with_locale(options.delete(:locale)) do
       use_viewer_data(fetch_viewer_data(options.delete(:timeout)), options)
@@ -44,7 +46,10 @@ class Pet < ApplicationRecord
       options[:item_scope])
   end
   
-  def fetch_viewer_data(timeout=4, locale=nil)
+  # NOTE: Ideally pet requests shouldn't take this long, but Neopets can be
+  # slow sometimes! Since we're on the Falcon server, long timeouts shouldn't
+  # slow down the rest of the request queue, like it used to be in the past.
+  def fetch_viewer_data(timeout=10, locale=nil)
     locale ||= I18n.default_locale
     begin
       neopets_language_code = I18n.compatible_neopets_language_code_for(locale)

app/models/pet_type.rb

@@ -135,9 +135,9 @@ class PetType < ApplicationRecord
         begin
           res.error!
         rescue Exception => e
-          raise DownloadError, "Error loading CPN image at #{cpn_uri}: #{e.message}"
+          Rails.logger.warn "Error loading CPN image at #{cpn_uri}: #{e.message}"
         else
-          raise DownloadError, "Error loading CPN image at #{cpn_uri}. Response: #{res.inspect}"
+          Rails.logger.warn "Error loading CPN image at #{cpn_uri}. Response: #{res.inspect}"
         end
       end
       new_url = res['location']
@@ -146,7 +146,7 @@ class PetType < ApplicationRecord
         self.image_hash = new_image_hash
         Rails.logger.info "Successfully loaded #{cpn_uri}, saved image hash #{new_image_hash}"
       else
-        raise DownloadError, "CPN image pointed to #{new_url}, which does not match CP image format"
+        Rails.logger.warn "CPN image pointed to #{new_url}, which does not match CP image format"
       end
     end
   end

app/views/outfits/new.html.haml

@@ -2,9 +2,10 @@
 
 = advertise_campaign_progress @campaign
 
-.notice
+.warning
   %strong Happy NC UC day!
-  We're working on some changes to get everything set up, see you soon! 💖
+  We've temporarily disabled pet loading while we get everything set up and
+  investigate some new compatibility issues. We'll have it back soon!
 
 %p#pet-not-found.alert= t 'pets.load.not_found'
 

config/application.rb

@@ -61,6 +61,10 @@ module OpenneoImpressItems
 
     config.middleware.insert_after ActionDispatch::Flash, Rack::Attack
 
+    # On the Falcon server, requests run on fibers. Isolate Rails internal
+    # state to the per-fiber level, to avoid conflicts that crash stuff!
+    config.active_support.isolation_level = :fiber
+
     # It seems like some Neopets servers reject any user agent containing
     # symbols? So I can't provide anything helpful like a URL, email address,
     # version number, etc. So let's only send this to Neopets systems, where it

config/locales/en.yml

@@ -781,6 +781,9 @@ en:
       pet_download_error:
         We couldn't connect to Neopets to look up the pet. Maybe they're down.
         Please try again later!
+      modeling_disabled: We've turned off pet loading for a bit, while we
+        investigate some changes in how it works. We'll be back as soon as we
+        can!
 
   swf_assets:
     links:

deploy/files/impress.service

@@ -5,7 +5,7 @@ Description=Dress to Impress webapp
 User=impress
 Restart=always
 WorkingDirectory=/srv/impress/current
-ExecStart=/opt/ruby-3.1.4/bin/bundle exec puma --port=3000
+ExecStart=/opt/ruby-3.1.4/bin/bundle exec falcon host
 Environment="RAILS_ENV=production"
 ; Set EXECJS_RUNTIME to save us from needing to install Node
 Environment="EXECJS_RUNTIME=Disabled"

deploy/setup.yml

@@ -7,253 +7,253 @@
     email_address: "emi@matchu.dev" # TODO: Extract this to personal config?
     impress_hostname: impress.openneo.net
   tasks:
-    - name: Create SSH folder for logged-in user
-      become: no
-      file:
-        name: .ssh
-        mode: "700"
-        state: directory
+    # - name: Create SSH folder for logged-in user
+    #   become: no
+    #   file:
+    #     name: .ssh
+    #     mode: "700"
+    #     state: directory
 
-    - name: Copy authorized SSH keys to logged-in user
-      become: no
-      copy:
-        dest: ~/.ssh/authorized_keys
-        src: files/authorized-ssh-keys.txt
-        mode: "600"
+    # - name: Copy authorized SSH keys to logged-in user
+    #   become: no
+    #   copy:
+    #     dest: ~/.ssh/authorized_keys
+    #     src: files/authorized-ssh-keys.txt
+    #     mode: "600"
 
-    - name: Disable root SSH login
-      lineinfile:
-        dest: /etc/ssh/sshd_config
-        regexp: ^#?PermitRootLogin
-        line: PermitRootLogin no
+    # - name: Disable root SSH login
+    #   lineinfile:
+    #     dest: /etc/ssh/sshd_config
+    #     regexp: ^#?PermitRootLogin
+    #     line: PermitRootLogin no
 
-    - name: Disable password-based SSH authentication
-      lineinfile:
-        dest: /etc/ssh/sshd_config
-        regexp: ^#?PasswordAuthentication
-        line: PasswordAuthentication no
+    # - name: Disable password-based SSH authentication
+    #   lineinfile:
+    #     dest: /etc/ssh/sshd_config
+    #     regexp: ^#?PasswordAuthentication
+    #     line: PasswordAuthentication no
 
-    - name: Enable public-key SSH authentication
-      lineinfile:
-        dest: /etc/ssh/sshd_config
-        regexp: ^#?PubkeyAuthentication
-        line: PubkeyAuthentication yes
+    # - name: Enable public-key SSH authentication
+    #   lineinfile:
+    #     dest: /etc/ssh/sshd_config
+    #     regexp: ^#?PubkeyAuthentication
+    #     line: PubkeyAuthentication yes
 
-    - name: Update the apt cache
-      apt:
-        update_cache: yes
+    # - name: Update the apt cache
+    #   apt:
+    #     update_cache: yes
 
-    - name: Install fail2ban firewall with default settings
-      apt:
-        name: fail2ban
+    # - name: Install fail2ban firewall with default settings
+    #   apt:
+    #     name: fail2ban
 
-    - name: Configure ufw firewall to allow SSH connections on port 22
-      community.general.ufw:
-        rule: allow
-        port: "22"
+    # - name: Configure ufw firewall to allow SSH connections on port 22
+    #   community.general.ufw:
+    #     rule: allow
+    #     port: "22"
 
-    - name: Configure ufw firewall to allow HTTP connections on port 80
-      community.general.ufw:
-        rule: allow
-        port: "80"
+    # - name: Configure ufw firewall to allow HTTP connections on port 80
+    #   community.general.ufw:
+    #     rule: allow
+    #     port: "80"
 
-    - name: Configure ufw firewall to allow HTTPS connections on port 443
-      community.general.ufw:
-        rule: allow
-        port: "443"
+    # - name: Configure ufw firewall to allow HTTPS connections on port 443
+    #   community.general.ufw:
+    #     rule: allow
+    #     port: "443"
 
-    - name: Enable ufw firewall with all other ports closed by default
-      community.general.ufw:
-        state: enabled
-        policy: deny
+    # - name: Enable ufw firewall with all other ports closed by default
+    #   community.general.ufw:
+    #     state: enabled
+    #     policy: deny
 
-    - name: Install unattended-upgrades
-      apt:
-        name: unattended-upgrades
+    # - name: Install unattended-upgrades
+    #   apt:
+    #     name: unattended-upgrades
 
-    - name: Enable unattended-upgrades to auto-upgrade our system
-      copy:
-        content: |
-          APT::Periodic::Update-Package-Lists "1";
-          APT::Periodic::Unattended-Upgrade "1";
-        dest: /etc/apt/apt.conf.d/20auto-upgrades
+    # - name: Enable unattended-upgrades to auto-upgrade our system
+    #   copy:
+    #     content: |
+    #       APT::Periodic::Update-Package-Lists "1";
+    #       APT::Periodic::Unattended-Upgrade "1";
+    #     dest: /etc/apt/apt.conf.d/20auto-upgrades
 
-    - name: Configure unattended-upgrades to auto-reboot our server when necessary
-      lineinfile:
-        regex: ^(//\s*)?Unattended-Upgrade::Automatic-Reboot ".*";$
-        line: Unattended-Upgrade::Automatic-Reboot "true";
-        dest: /etc/apt/apt.conf.d/50unattended-upgrades
+    # - name: Configure unattended-upgrades to auto-reboot our server when necessary
+    #   lineinfile:
+    #     regex: ^(//\s*)?Unattended-Upgrade::Automatic-Reboot ".*";$
+    #     line: Unattended-Upgrade::Automatic-Reboot "true";
+    #     dest: /etc/apt/apt.conf.d/50unattended-upgrades
 
-    - name: Configure unattended-upgrades to delay necessary reboots to 3am
-      lineinfile:
-        regex: ^(//\s*)?Unattended-Upgrade::Automatic-Reboot-Time ".*";$
-        line: Unattended-Upgrade::Automatic-Reboot-Time "03:00";
-        dest: /etc/apt/apt.conf.d/50unattended-upgrades
+    # - name: Configure unattended-upgrades to delay necessary reboots to 3am
+    #   lineinfile:
+    #     regex: ^(//\s*)?Unattended-Upgrade::Automatic-Reboot-Time ".*";$
+    #     line: Unattended-Upgrade::Automatic-Reboot-Time "03:00";
+    #     dest: /etc/apt/apt.conf.d/50unattended-upgrades
 
-    - name: Configure the system timezone to be US Pacific time
-      community.general.timezone:
-        name: America/Los_Angeles
+    # - name: Configure the system timezone to be US Pacific time
+    #   community.general.timezone:
+    #     name: America/Los_Angeles
 
-    - name: Create "impress" user
-      user:
-        name: impress
-        comment: Impress App
-        home: /srv/impress
-        create_home: false
-        shell: /bin/bash
+    # - name: Create "impress" user
+    #   user:
+    #     name: impress
+    #     comment: Impress App
+    #     home: /srv/impress
+    #     create_home: false
+    #     shell: /bin/bash
 
-    - name: Create "impress-deployers" group
-      group:
-        name: impress-deployers
+    # - name: Create "impress-deployers" group
+    #   group:
+    #     name: impress-deployers
 
-    - name: Add the current user to the "impress-deployers" group
-      user:
-        name: "{{ lookup('env', 'USER') }}"
-        groups:
-          - impress-deployers
-        append: yes
+    # - name: Add the current user to the "impress-deployers" group
+    #   user:
+    #     name: "{{ lookup('env', 'USER') }}"
+    #     groups:
+    #       - impress-deployers
+    #     append: yes
 
-    # We use this so the deploy playbook doesn't have to prompt for a root
-    # password: this user just is trusted to act as "impress" in the future.
-    - name: Enable the "impress-deployers" group to freely act as the "impress" user
-      community.general.sudoers:
-        name: impress-deployers-as-impress
-        group: impress-deployers
-        runas: impress
-        commands: ALL
-        nopassword: yes
+    # # We use this so the deploy playbook doesn't have to prompt for a root
+    # # password: this user just is trusted to act as "impress" in the future.
+    # - name: Enable the "impress-deployers" group to freely act as the "impress" user
+    #   community.general.sudoers:
+    #     name: impress-deployers-as-impress
+    #     group: impress-deployers
+    #     runas: impress
+    #     commands: ALL
+    #     nopassword: yes
 
-    # Similarly, this enables us to manage the impress service in the deploy playbook
-    # and in live debugging without a password.
-    # NOTE: In the sudoers file, you need to specify the full path to the
-    # command, to avoid tricks where you use PATH to get around the intent!
-    - name: Enable the "impress-deployers" group to freely start and stop the impress service
-      community.general.sudoers:
-        name: impress-deployers-systemctl
-        group: impress-deployers
-        commands:
-          - /bin/systemctl status impress
-          - /bin/systemctl start impress
-          - /bin/systemctl stop impress
-          - /bin/systemctl restart impress
-        nopassword: yes
+    # # Similarly, this enables us to manage the impress service in the deploy playbook
+    # # and in live debugging without a password.
+    # # NOTE: In the sudoers file, you need to specify the full path to the
+    # # command, to avoid tricks where you use PATH to get around the intent!
+    # - name: Enable the "impress-deployers" group to freely start and stop the impress service
+    #   community.general.sudoers:
+    #     name: impress-deployers-systemctl
+    #     group: impress-deployers
+    #     commands:
+    #       - /bin/systemctl status impress
+    #       - /bin/systemctl start impress
+    #       - /bin/systemctl stop impress
+    #       - /bin/systemctl restart impress
+    #     nopassword: yes
 
-    - name: Install ACL, to enable us to run commands as the "impress" user
-      apt:
-        name: acl
+    # - name: Install ACL, to enable us to run commands as the "impress" user
+    #   apt:
+    #     name: acl
 
-    - name: Install ruby-build
-      git:
-        repo: https://github.com/rbenv/ruby-build.git
-        dest: /opt/ruby-build
-        version: 4d4678bc1ed89aa6900c0ea0da23495445dbcf50
+    # - name: Install ruby-build
+    #   git:
+    #     repo: https://github.com/rbenv/ruby-build.git
+    #     dest: /opt/ruby-build
+    #     version: 4d4678bc1ed89aa6900c0ea0da23495445dbcf50
 
-    - name: Check if Ruby 3.1.4 is already installed
-      stat:
-        path: /opt/ruby-3.1.4
-      register: ruby_dir
+    # - name: Check if Ruby 3.1.4 is already installed
+    #   stat:
+    #     path: /opt/ruby-3.1.4
+    #   register: ruby_dir
 
-    - name: Install Ruby 3.1.4
-      command: "/opt/ruby-build/bin/ruby-build 3.1.4 /opt/ruby-3.1.4"
-      when: not ruby_dir.stat.exists
+    # - name: Install Ruby 3.1.4
+    #   command: "/opt/ruby-build/bin/ruby-build 3.1.4 /opt/ruby-3.1.4"
+    #   when: not ruby_dir.stat.exists
 
-    - name: Add Ruby 3.1.4 to the global PATH, for developer convenience
-      lineinfile:
-        dest: /etc/profile
-        line: 'PATH="/opt/ruby-3.1.4/bin:$PATH" # Added by impress deploy setup script'
+    # - name: Add Ruby 3.1.4 to the global PATH, for developer convenience
+    #   lineinfile:
+    #     dest: /etc/profile
+    #     line: 'PATH="/opt/ruby-3.1.4/bin:$PATH" # Added by impress deploy setup script'
 
-    - name: Install system dependencies for impress's Ruby gems
-      apt:
-        name:
-          - libmysqlclient-dev
-          - libyaml-dev
+    # - name: Install system dependencies for impress's Ruby gems
+    #   apt:
+    #     name:
+    #       - libmysqlclient-dev
+    #       - libyaml-dev
 
-    - name: Create the app folder
-      file:
-        path: /srv/impress
-        owner: impress
-        group: impress
-        mode: "755"
-        state: directory
+    # - name: Create the app folder
+    #   file:
+    #     path: /srv/impress
+    #     owner: impress
+    #     group: impress
+    #     mode: "755"
+    #     state: directory
 
-    - name: Add a convenient .bash_profile for when we log in as "impress"
-      copy:
-        owner: impress
-        group: impress
-        dest: /srv/impress/.bash_profile
-        content: |
-          set -a # Export all of the below
-          RAILS_ENV=production
-          EXECJS_RUNTIME=Disabled
-          source /srv/impress/shared/production.env
-          set +a
+    # - name: Add a convenient .bash_profile for when we log in as "impress"
+    #   copy:
+    #     owner: impress
+    #     group: impress
+    #     dest: /srv/impress/.bash_profile
+    #     content: |
+    #       set -a # Export all of the below
+    #       RAILS_ENV=production
+    #       EXECJS_RUNTIME=Disabled
+    #       source /srv/impress/shared/production.env
+    #       set +a
 
-    - name: Create the app's "versions" folder
-      become_user: impress
-      file:
-        path: /srv/impress/versions
-        state: directory
+    # - name: Create the app's "versions" folder
+    #   become_user: impress
+    #   file:
+    #     path: /srv/impress/versions
+    #     state: directory
 
-    - name: Create the app's "shared" folder
-      become_user: impress
-      file:
-        path: /srv/impress/shared
-        state: directory
+    # - name: Create the app's "shared" folder
+    #   become_user: impress
+    #   file:
+    #     path: /srv/impress/shared
+    #     state: directory
 
-    - name: Check for a current app version
-      stat:
-        path: /srv/impress/current
-      register: current_app_version
+    # - name: Check for a current app version
+    #   stat:
+    #     path: /srv/impress/current
+    #   register: current_app_version
 
-    - name: Check whether we already have a placeholder app
-      stat:
-        path: /srv/impress/versions/initial-placeholder
-      register: existing_placeholder_app
-      when: not current_app_version.stat.exists
+    # - name: Check whether we already have a placeholder app
+    #   stat:
+    #     path: /srv/impress/versions/initial-placeholder
+    #   register: existing_placeholder_app
+    #   when: not current_app_version.stat.exists
 
-    - name: Create a placeholder app, to run until we deploy a real version
-      become_user: impress
-      copy:
-        src: files/initial-placeholder
-        dest: /srv/impress/versions
-      when: |
-        not current_app_version.stat.exists and
-          not existing_placeholder_app.stat.exists
+    # - name: Create a placeholder app, to run until we deploy a real version
+    #   become_user: impress
+    #   copy:
+    #     src: files/initial-placeholder
+    #     dest: /srv/impress/versions
+    #   when: |
+    #     not current_app_version.stat.exists and
+    #       not existing_placeholder_app.stat.exists
 
-    - name: Configure the placeholder app to run in deployment mode
-      become_user: impress
-      command:
-        chdir: /srv/impress/versions/initial-placeholder
-        cmd: /opt/ruby-3.1.4/bin/bundle config set --local deployment true
-      when: not current_app_version.stat.exists
+    # - name: Configure the placeholder app to run in deployment mode
+    #   become_user: impress
+    #   command:
+    #     chdir: /srv/impress/versions/initial-placeholder
+    #     cmd: /opt/ruby-3.1.4/bin/bundle config set --local deployment true
+    #   when: not current_app_version.stat.exists
 
-    - name: Install the placeholder app's dependencies
-      become_user: impress
-      command:
-        chdir: /srv/impress/versions/initial-placeholder
-        cmd: /opt/ruby-3.1.4/bin/bundle install
-      when: not current_app_version.stat.exists
+    # - name: Install the placeholder app's dependencies
+    #   become_user: impress
+    #   command:
+    #     chdir: /srv/impress/versions/initial-placeholder
+    #     cmd: /opt/ruby-3.1.4/bin/bundle install
+    #   when: not current_app_version.stat.exists
 
-    - name: Set the placeholder app as the current version
-      become_user: impress
-      file:
-        src: /srv/impress/versions/initial-placeholder
-        dest: /srv/impress/current
-        state: link
-      when: not current_app_version.stat.exists
+    # - name: Set the placeholder app as the current version
+    #   become_user: impress
+    #   file:
+    #     src: /srv/impress/versions/initial-placeholder
+    #     dest: /srv/impress/current
+    #     state: link
+    #   when: not current_app_version.stat.exists
 
-    # NOTE: This file is uploaded with stricter permissions, to help protect
-    # the secrets inside. Most of the app is world-readable for convenience
-    # for debugging and letting nginx serve static files, but keep this safer!
-    - name: Upload the production.env file
-      become_user: impress
-      copy:
-        dest: /srv/impress/shared/production.env
-        src: files/production.env
-        mode: "600"
-      notify:
-        - Reload systemctl
-        - Restart impress
+    # # NOTE: This file is uploaded with stricter permissions, to help protect
+    # # the secrets inside. Most of the app is world-readable for convenience
+    # # for debugging and letting nginx serve static files, but keep this safer!
+    # - name: Upload the production.env file
+    #   become_user: impress
+    #   copy:
+    #     dest: /srv/impress/shared/production.env
+    #     src: files/production.env
+    #     mode: "600"
+    #   notify:
+    #     - Reload systemctl
+    #     - Restart impress
 
     - name: Create service file for impress
       copy:

falcon.rb

@@ -0,0 +1,10 @@
+#!/usr/bin/env -S falcon host
+# frozen_string_literal: true
+
+load :rack
+
+hostname = File.basename(__dir__)
+rack hostname do
+	endpoint Async::HTTP::Endpoint.parse('http://localhost:3000').
+		with(protocol: Async::HTTP::Protocol::HTTP1)
+end