only build container for the main branch

.devcontainer/Dockerfile

@@ -1,2 +0,0 @@
-ARG VARIANT="3.4.2"
-FROM ghcr.io/rails/devcontainer/images/ruby:${VARIANT}

.devcontainer/boot.sh

@@ -1,4 +0,0 @@
-#!/bin/bash
-
-bundle update --bundler
-bundler install

.devcontainer/compose.yml

@@ -1,12 +0,0 @@
----
-services:
-  kubernaut:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    volumes:
-      - ..:/workspace:cached
-      - /var/run/docker.sock:/var/run/docker-host.sock
-    command: sleep infinity
-  memcached:
-    image: memcached:latest

.devcontainer/devcontainer.json

@@ -1,20 +0,0 @@
-{
-    "dockerComposeFile": "compose.yml",
-    "service": "kubernaut",
-    "workspaceFolder": "/workspace",
-    "customizations": {
-        "vscode": {
-            "extensions": [
-                "Shopify.ruby-lsp",
-                "ms-azuretools.vscode-docker"
-            ]
-        }
-    },
-    "postCreateCommand": ".devcontainer/boot.sh",
-    "forwardPorts": [
-        4567
-    ],
-    "features": {
-        "ghcr.io/devcontainers/features/docker-outside-of-docker:1": {}
-    }
-}

.gitea/workflows/ci.yaml

@@ -1,16 +1,7 @@
 ---
 name: Gitea Actions Demo
 run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
-
+on: [push]
-on:
-  schedule: 
-    - cron: "0 10 * * *"
-  push:
-    branches:
-      - "**"
-    tags:
-      - "v*.*.*"
-  pull_request:
 
 jobs:
   lint:
@@ -25,7 +16,7 @@ jobs:
       - name: Ruby Setup
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.4'
+          ruby-version: '3.3'
           bundler-cache: true
 
       - run: bundle install
@@ -49,8 +40,9 @@ jobs:
 
       - run: bundle exec rake
 
-  docker:
+  release-image:
     needs: test
+    if: github.ref == 'refs/heads/main'
     runs-on: ubuntu-latest
     container:
       image: catthehacker/ubuntu:act-latest
@@ -63,21 +55,6 @@ jobs:
         with:
           fetch-depth: 0 # all history for all branches and tags
 
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            git.kill0.net/ryanc/kubernaut
-          tags: |
-            type=schedule
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=semver,pattern={{major}}
-            type=sha
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -91,6 +68,5 @@ jobs:
       - name: Docker build and push
         uses: docker/build-push-action@v5
         with:
-          push: ${{ github.event_name != 'pull_request' }}
+          push: true
-          tags: ${{ steps.meta.outputs.tags }}
+          tags: git.kill0.net/ryanc/kubernaut:latest
-          labels: ${{ steps.meta.outputs.labels }}

.gitignore

@@ -1,3 +1,5 @@
 .bundle
+.cache
+.local
 .ruby-lsp
-/vendor
+.ash_history

.vscode/settings.json

@@ -1,9 +0,0 @@
-{
-  "[ruby]": {
-    "editor.defaultFormatter": "Shopify.ruby-lsp"
-  },
-  "rubyLsp.formatter": "standard",
-  "rubyLsp.linters": [
-    "standard"
-  ],
-}

Dockerfile

@@ -9,6 +9,8 @@ RUN <<EOT
   apk upgrade --no-cache
 EOT
 
+RUN mkdir -p /run/app
+
 
 FROM base AS build
 
@@ -23,12 +25,25 @@ RUN <<EOT
   bundle install
 EOT
 
+FROM build AS dev
+
+WORKDIR /app
+
+RUN <<EOT
+  bundle install
+EOT
+
+CMD [ "sleep", "infinity" ]
 
 FROM base
 
 # RUN useradd ruby --home /app --shell /bin/sh
 RUN adduser ruby -h /app -D
 
+RUN mkdir -p /run/app
+
+RUN chown ruby:ruby /run/app
+
 USER ruby:ruby
 
 COPY --from=build /usr/local/bundle /usr/local/bundle

Gemfile

@@ -16,6 +16,8 @@ gem "httparty"
 
 group :development do
   gem "ruby-lsp"
+  gem "rubocop"
+  gem "rbs"
   gem "rack-test"
   gem "rspec"
   gem "standard"

Gemfile.lock

@@ -2,7 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     anyflake (0.0.1)
-    ast (2.4.3)
+    ast (2.4.2)
     base64 (0.2.0)
     bigdecimal (3.1.8)
     csv (3.3.0)
@@ -11,7 +11,7 @@ GEM
       csv
       mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    json (2.10.2)
+    json (2.10.1)
     jwt (2.10.1)
       base64
     ksuid (1.0.0)
@@ -28,7 +28,7 @@ GEM
     nanoid (2.0.0)
     nio4r (2.7.4)
     parallel (1.26.3)
-    parser (3.3.7.2)
+    parser (3.3.7.1)
       ast (~> 2.4.1)
       racc
     prism (1.3.0)
@@ -65,10 +65,9 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.2)
-    rubocop (1.73.2)
+    rubocop (1.71.2)
       json (~> 2.3)
-      language_server-protocol (~> 3.17.0.2)
+      language_server-protocol (>= 3.17.0)
-      lint_roller (~> 1.1.0)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
@@ -76,12 +75,11 @@ GEM
       rubocop-ast (>= 1.38.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.41.0)
+    rubocop-ast (1.38.1)
-      parser (>= 3.3.7.2)
+      parser (>= 3.3.1.0)
-    rubocop-performance (1.24.0)
+    rubocop-performance (1.23.1)
-      lint_roller (~> 1.1)
+      rubocop (>= 1.48.1, < 2.0)
-      rubocop (>= 1.72.1, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
-      rubocop-ast (>= 1.38.0, < 2.0)
     ruby-lsp (0.23.11)
       language_server-protocol (~> 3.17.0)
       prism (>= 1.2, < 2.0)
@@ -103,18 +101,18 @@ GEM
       sinatra (= 4.1.1)
       tilt (~> 2.0)
     sorbet-runtime (0.5.11911)
-    standard (1.47.0)
+    standard (1.45.0)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.73.0)
+      rubocop (~> 1.71.0)
       standard-custom (~> 1.0.0)
-      standard-performance (~> 1.7)
+      standard-performance (~> 1.6)
     standard-custom (1.0.2)
       lint_roller (~> 1.0)
       rubocop (~> 1.50)
-    standard-performance (1.7.0)
+    standard-performance (1.6.0)
       lint_roller (~> 1.1)
-      rubocop-performance (~> 1.24.0)
+      rubocop-performance (~> 1.23.0)
     tilt (2.6.0)
     ulid (1.4.0)
     unicode-display_width (3.1.4)
@@ -139,7 +137,9 @@ DEPENDENCIES
   rack-test
   rackup
   rake
+  rbs
   rspec
+  rubocop
   ruby-lsp
   sinatra
   sinatra-contrib
@@ -148,4 +148,4 @@ DEPENDENCIES
   uuid7
 
 BUNDLED WITH
-   2.6.6
+   2.5.13

Rakefile

@@ -1,11 +0,0 @@
-begin
-  require "rspec/core/rake_task"
-  RSpec::Core::RakeTask.new(:spec)
-rescue LoadError
-end
-
-require "minitest/test_task"
-
-Minitest::TestTask.create
-
-task default: [:test, :spec]

app.rb

@@ -23,12 +23,11 @@ require "config"
 CHUNK_SIZE = 1024**2
 SESSION_SECRET_HEX_LENGTH = 64
 JWT_SECRET_HEX_LENGTH = 64
-DEFAULT_FLAKEY = 50
 
-NAME = "kubernaut".freeze
+ENV_PREFIX = "KUBERNAUT"
-ENV_PREFIX = NAME.upcase
 
 CLK_TCK = 100
+PID_FILE_PATH = "/run/app/pid".freeze
 PROC_UPTIME_PATH = "/proc/uptime".freeze
 
 SECONDS_PER_YEAR = 31_556_952
@@ -51,7 +50,6 @@ DURATION_PARTS = [
 config = Config.new
 
 set :session_secret, config.session_secret.unwrap
-set :public_folder, __dir__ + "/static"
 
 module Sinatra
   module RequestHeadersHelper
@@ -109,7 +107,7 @@ end
 
 class TickTock
   def initialize
-    @pid = ppid
+    @pid = master_pid
     @procfs_f = format "/proc/%s/stat", @pid
     puts @pid
   end
@@ -135,7 +133,7 @@ class Health
   include UpDown
 
   def initialize
-    @file = "/dev/shm/healthy"
+    @file = "./healthy"
   end
 
   def healthy?
@@ -149,7 +147,7 @@ class Ready
   include UpDown
 
   def initialize
-    @file = "/dev/shm/ready"
+    @file = "./ready"
   end
 
   def ready?
@@ -162,7 +160,7 @@ class Sleep
   include State
 
   def initialize
-    @file = "/dev/shm/sleep"
+    @file = "./sleep"
   end
 
   def asleep?
@@ -178,22 +176,9 @@ class Sleep
   end
 end
 
-def ppid
+def master_pid
-  pid = Process.pid
+  pid_s = File.read PID_FILE_PATH
-  # self
+  Integer pid_s.strip
-  ps = File.open "/proc/#{pid}/stat", &:readline
-  ps = ps.split(" ")
-  ppid = Integer(ps[3])
-
-  # ppid
-  ps = File.open "/proc/#{ppid}/stat", &:readline
-  ps = ps.split(" ")
-
-  if ps[1].include? "ruby"
-    ppid
-  else
-    pid
-  end
 end
 
 def system_uptime
@@ -221,13 +206,6 @@ Health.instance.up
 Ready.instance.up
 Sleep.instance.wake
 
-def flaky(pct = DEFAULT_FLAKEY)
-  r = Random.rand(0..100)
-  unless r < (100 - pct)
-    halt 500, "so unreliable"
-  end
-end
-
 enable :sessions
 
 configure do
@@ -239,17 +217,6 @@ before do
   sleep(1) while Sleep.instance.asleep? && request.path_info != "/livez/sleep"
   content_type :text if request.path_info.start_with? "/_cat"
   request.session_options[:skip] = !request.path_info.start_with?("/session")
-
-  if params.has_key? :flaky
-    begin
-      pct = Integer(params[:flaky])
-      pct = pct.clamp(0, 100)
-    rescue => e
-      logger.warn "#{e.message}: falling back to default flaky percentage of #{DEFAULT_FLAKEY}"
-      pct = DEFAULT_FLAKEY
-    end
-    flaky(pct)
-  end
 end
 
 helpers do
@@ -280,10 +247,6 @@ helpers do
       @auth.credentials and
       @auth.credentials == ["qwer", "asdf"]
   end
-
-  def hostname
-    ENV["HOSTNAME"]
-  end
 end
 
 get "/" do
@@ -367,19 +330,19 @@ get "/snowflake" do
 end
 
 post "/quit" do
-  Process.kill("TERM", ppid)
+  Process.kill("TERM", master_pid)
   nil
 end
 
 post "/halt" do
-  Process.kill("QUIT", ppid)
+  Process.kill("QUIT", master_pid)
   nil
 end
 
 get "/pid" do
   pretty = params.key? :pretty
 
-  jsonify({ppid: ppid, pid: Process.pid}, pretty:)
+  jsonify({puma: master_pid, pid: Process.pid}, pretty:)
 end
 
 get "/token" do
@@ -422,20 +385,6 @@ get "/config", provides: "json" do
   jsonify config.as_json, pretty:
 end
 
-get "/_cat" do
-  stream do |out|
-    out << "=^.^=\n"
-    x = Sinatra::Application.routes.map do |method, route|
-      route.map do |route|
-        route.first.to_s
-      end
-    end
-    x.flatten.sort.uniq.each do |route|
-      out << "#{route}\n" if route.start_with? "/_cat"
-    end
-  end
-end
-
 get "/_cat/headers" do
   stream do |out|
     req_headers.each do |k, v|
@@ -475,14 +424,6 @@ get "/_cat/config" do
   end
 end
 
-get "/_cat/pid" do
-  stream do |out|
-    {ppid: ppid, pid: Process.pid}.sort.each do |k, v|
-      out << "#{k}=#{v}\n"
-    end
-  end
-end
-
 route :delete, :get, :patch, :post, :put, "/status/:code" do
   # hello
   code = Integer(params[:code])
@@ -558,16 +499,13 @@ get "/bytes/:size" do
   generate_bytes(Integer(n))
 end
 
-get "/api/caas" do
+get "/kitty" do
-  send_file Dir[__dir__ + "/static/cat*.jpg"].sample
-end
-
-get "/meow" do
   caas_host = ENV.fetch "CAAS_SERVICE_HOST", nil
   caas_port = ENV.fetch "CAAS_SERVICE_PORT", nil
   url = "http://#{caas_host}:#{caas_port}/"
   unless caas_host && caas_port
-    url = url("/api/caas")
+    # fail-safe url
+    url = "https://i.imgur.com/epzPw7L.jpeg"
   end
   tmp_file = Tempfile.open binmode: true do |f|
     # f.chmod 0o644

config/puma.rb

@@ -0,0 +1,3 @@
+# workers 3
+pidfile "/run/app/pid"
+preload_app!

docker-compose.yml

@@ -0,0 +1,15 @@
+services:
+  web:
+    build:
+      context: .
+      target: dev
+    ports:
+      - "4567:4567"
+    volumes:
+      - .:/app
+    environment:
+      {}
+      # WEB_CONCURRENCY: 3
+    command:
+      - sleep
+      - infinity

lib/sensitive.rb

@@ -10,7 +10,7 @@ class Sensitive
   end
 
   def mask(v)
-    +"".concat(v[0, @head], @ch * (v.length - (@head + @tail)), v[-@tail, @tail])
+    String.new.concat(v[0, @head], @ch * (v.length - (@head + @tail)), v[-@tail, @tail])
   end
 
   def unwrap

sig/app.rbs

@@ -0,0 +1,63 @@
+module State
+  def enable: () -> untyped
+
+  def disable: () -> (untyped | nil)
+
+  def enabled?: () -> bool
+
+  def toggle: () -> untyped
+end
+
+module UpDown
+  def up: () -> untyped
+
+  def down: () -> untyped
+
+  def to_s: () -> ("up" | "down")
+
+  def to_json: (*untyped _args) -> (nil | untyped)
+end
+
+class Health
+  @file: untyped
+
+  include Singleton
+
+  include State
+
+  include UpDown
+
+  def initialize: () -> void
+
+  def healthy?: () -> bool
+end
+
+class Ready
+  @file: untyped
+
+  include Singleton
+
+  include State
+
+  include UpDown
+
+  def initialize: () -> void
+
+  def ready?: () -> bool
+end
+
+class Sleep
+  @file: untyped
+
+  include Singleton
+
+  include State
+
+  def initialize: () -> void
+
+  def asleep?: () -> bool
+
+  def wake: () -> untyped
+
+  def sleep: () -> untyped
+end