create a new method for inferring the PPID

2025-03-24 11:16:03 -05:00
31 changed files with 223 additions and 842 deletions
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@ -1,2 +0,0 @@
-ARG VARIANT="3.4.2"
-FROM ghcr.io/rails/devcontainer/images/ruby:${VARIANT}
--- a/.devcontainer/boot.sh
+++ b/.devcontainer/boot.sh
@ -1,4 +0,0 @@
-#!/bin/bash
-
-bundle update --bundler
-bundler install
--- a/.devcontainer/compose.yml
+++ b/.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
--- a/.devcontainer/devcontainer.json
+++ b/.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": {}
-    }
-}
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@ -1,16 +1,7 @@
 ---
 name: Gitea Actions Demo
 run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
-
-on:
-  schedule: 
-    - cron: "0 10 * * *"
-  push:
-    branches:
-      - "**"
-    tags:
-      - "v*.*.*"
-  pull_request:
+on: [push]

 jobs:
  lint:
@ -19,19 +10,13 @@ jobs:
      checks: write
      contents: write
    steps:
-      - name: Login to Docker
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        with:
-          username: ${{ vars.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
      - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4

      - name: Ruby Setup
-        uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
+        uses: ruby/setup-ruby@v1
        with:
-          ruby-version: '3.4'
+          ruby-version: '3.3'
          bundler-cache: true

      - run: bundle install
@ -45,112 +30,43 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4

      - name: Test
-        uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
+        uses: ruby/setup-ruby@v1
        with:
          ruby-version: '3.4'
          bundler-cache: true

      - 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
    env:
      DOCKER_ORG: ryanc
      DOCKER_LATEST: latest
-    defaults:
-      run:
-        shell: bash
-    outputs:
-      metadata: ${{ steps.output.outputs.metadata }}
    steps:
      - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # all history for all branches and tags

-      - name: Prepare
-        id: prep
-        run: |
-          VERSION="sha-${GITHUB_SHA::8}"
-          if [[ "$GITHUB_REF" == refs/tags/* ]]; then
-            VERSION="${GITHUB_REF/refs\/tags\//}"
-          fi
-          printf "GITHUB_REF=%s\n" "$GITHUB_REF"
-          printf "GITHUB_SHA=%s\n" "$GITHUB_SHA"
-          printf "VERSION=%s\n" "$VERSION" | tee -a "$GITHUB_OUTPUT"
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
-
      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
+        uses: docker/setup-buildx-action@v3

      - name: Login to Gitea registry
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
+        uses: docker/login-action@v3
        with:
          registry: git.kill0.net
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

-      - name: Docker meta (debian)
-        id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
-        with:
-          images: |
-            git.kill0.net/ryanc/kubernaut
-          flavor: |
-            latest=auto
-          bake-target: docker-metadata-action
-          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: Docker meta (alpine)
-        id: meta-alpine
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
-        with:
-          images: |
-            git.kill0.net/ryanc/kubernaut
-          bake-target: docker-metadata-action-alpine
-          flavor: |
-            latest=auto
-            suffix=-alpine,onlatest=true
-          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: Docker build and push
-        uses: docker/bake-action@76f9fa3a758507623da19f6092dc4089a7e61592 # v6.6.0
+        uses: docker/build-push-action@v5
        with:
-          push: ${{ github.event_name != 'pull_request' }}
-          files: |
-            ./docker-bake.hcl
-            cwd://${{ steps.meta.outputs.bake-file }}
-            cwd://${{ steps.meta-alpine.outputs.bake-file }}
-
-      - name: Setup Helm
-        uses: azure/setup-helm@b9e51907a09c216f16ebe8536097933489208112 # v4.3.0
-
-      - name: Publish Helm chart
-        if: ${{ contains(github.ref, 'refs/tags/') }}
-        run: |
-          HELM_VERSION="${{ steps.prep.outputs.VERSION }}"
-          HELM_VERSION="${HELM_VERSION#v}"
-          helm package charts/kubernaut
-          helm push "kubernaut-${HELM_VERSION}.tgz" oci://git.kill0.net/ryanc/helm-charts
+          push: true
+          tags: git.kill0.net/ryanc/kubernaut:latest
--- a/.gitignore
+++ b/.gitignore
@ -1,3 +1,5 @@
 .bundle
+.cache
+.local
 .ruby-lsp
-/vendor
+.ash_history
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@ -1,9 +0,0 @@
-{
-  "[ruby]": {
-    "editor.defaultFormatter": "Shopify.ruby-lsp"
-  },
-  "rubyLsp.formatter": "standard",
-  "rubyLsp.linters": [
-    "standard"
-  ],
-}
--- a/55
+++ b/55
@ -0,0 +1,55 @@
+FROM ruby:alpine AS base
+
+WORKDIR /app
+
+RUN <<EOT
+  gem update --system --no-document
+  gem install -N bundler
+  apk update
+  apk upgrade --no-cache
+EOT
+
+RUN mkdir -p /run/app
+
+
+FROM base AS build
+
+RUN <<EOT
+  apk add gcc musl-dev ruby-dev make
+EOT
+
+COPY Gemfile* .
+
+RUN <<EOT
+  bundle config set --local without development
+  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
+COPY --from=build --chown=ruby:ruby /app /app
+
+COPY --chown=ruby:ruby . .
+
+EXPOSE 4567
+CMD [ "bundle", "exec", "rackup", "--host", "0.0.0.0", "--port", "4567" ]
--- a/3
+++ b/3
@ -3,6 +3,7 @@ source "https://rubygems.org"
 gem "sinatra"
 gem "sinatra-contrib"
 gem "puma"
+gem "rackup"

 gem "anyflake"
 gem "ksuid"
@ -15,6 +16,8 @@ gem "httparty"

 group :development do
  gem "ruby-lsp"
+  gem "rubocop"
+  gem "rbs"
  gem "rack-test"
  gem "rspec"
  gem "standard"
--- a/Gemfile.lock
+++ b/Gemfile.lock
@ -2,24 +2,24 @@ GEM
  remote: https://rubygems.org/
  specs:
    anyflake (0.0.1)
-    ast (2.4.3)
+    ast (2.4.2)
    base64 (0.2.0)
-    bigdecimal (3.1.9)
-    csv (3.3.4)
-    diff-lcs (1.6.1)
-    httparty (0.23.1)
+    bigdecimal (3.1.8)
+    csv (3.3.0)
+    diff-lcs (1.6.0)
+    httparty (0.22.0)
      csv
      mini_mime (>= 1.0.0)
      multi_xml (>= 0.5.2)
-    json (2.11.3)
+    json (2.10.1)
    jwt (2.10.1)
      base64
    ksuid (1.0.0)
    language_server-protocol (3.17.0.4)
    lint_roller (1.1.0)
-    logger (1.7.0)
+    logger (1.6.6)
    mini_mime (1.1.5)
-    minitest (5.25.5)
+    minitest (5.25.4)
    multi_json (1.15.0)
    multi_xml (0.7.1)
      bigdecimal (~> 3.1)
@ -27,15 +27,15 @@ GEM
      ruby2_keywords (~> 0.0.1)
    nanoid (2.0.0)
    nio4r (2.7.4)
-    parallel (1.27.0)
-    parser (3.3.8.0)
+    parallel (1.26.3)
+    parser (3.3.7.1)
      ast (~> 2.4.1)
      racc
-    prism (1.4.0)
+    prism (1.3.0)
    puma (6.6.0)
      nio4r (~> 2.0)
    racc (1.8.1)
-    rack (3.1.13)
+    rack (3.1.11)
    rack-protection (4.1.1)
      base64 (>= 0.1.0)
      logger (>= 1.6.0)
@ -45,9 +45,11 @@ GEM
      rack (>= 3.0.0)
    rack-test (2.2.0)
      rack (>= 1.3)
+    rackup (2.2.1)
+      rack (>= 3)
    rainbow (3.1.1)
    rake (13.2.1)
-    rbs (3.9.2)
+    rbs (3.8.1)
      logger
    regexp_parser (2.10.0)
    rspec (3.13.0)
@ -63,25 +65,22 @@ GEM
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.13.0)
    rspec-support (3.13.2)
-    rubocop (1.75.4)
+    rubocop (1.71.2)
      json (~> 2.3)
-      language_server-protocol (~> 3.17.0.2)
-      lint_roller (~> 1.1.0)
+      language_server-protocol (>= 3.17.0)
      parallel (~> 1.10)
      parser (>= 3.3.0.2)
      rainbow (>= 2.2.2, < 4.0)
      regexp_parser (>= 2.9.3, < 3.0)
-      rubocop-ast (>= 1.44.0, < 2.0)
+      rubocop-ast (>= 1.38.0, < 2.0)
      ruby-progressbar (~> 1.7)
      unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.44.1)
-      parser (>= 3.3.7.2)
-      prism (~> 1.4)
-    rubocop-performance (1.25.0)
-      lint_roller (~> 1.1)
-      rubocop (>= 1.75.0, < 2.0)
-      rubocop-ast (>= 1.38.0, < 2.0)
-    ruby-lsp (0.23.15)
+    rubocop-ast (1.38.1)
+      parser (>= 3.3.1.0)
+    rubocop-performance (1.23.1)
+      rubocop (>= 1.48.1, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    ruby-lsp (0.23.11)
      language_server-protocol (~> 3.17.0)
      prism (>= 1.2, < 2.0)
      rbs (>= 3, < 4)
@ -101,19 +100,19 @@ GEM
      rack-protection (= 4.1.1)
      sinatra (= 4.1.1)
      tilt (~> 2.0)
-    sorbet-runtime (0.5.12043)
-    standard (1.49.0)
+    sorbet-runtime (0.5.11911)
+    standard (1.45.0)
      language_server-protocol (~> 3.17.0.2)
      lint_roller (~> 1.0)
-      rubocop (~> 1.75.2)
+      rubocop (~> 1.71.0)
      standard-custom (~> 1.0.0)
-      standard-performance (~> 1.8)
+      standard-performance (~> 1.6)
    standard-custom (1.0.2)
      lint_roller (~> 1.0)
      rubocop (~> 1.50)
-    standard-performance (1.8.0)
+    standard-performance (1.6.0)
      lint_roller (~> 1.1)
-      rubocop-performance (~> 1.25.0)
+      rubocop-performance (~> 1.23.0)
    tilt (2.6.0)
    ulid (1.4.0)
    unicode-display_width (3.1.4)
@ -136,8 +135,11 @@ DEPENDENCIES
  nanoid
  puma
  rack-test
+  rackup
  rake
+  rbs
  rspec
+  rubocop
  ruby-lsp
  sinatra
  sinatra-contrib
@ -146,4 +148,4 @@ DEPENDENCIES
  uuid7

 BUNDLED WITH
-   2.6.8
+   2.5.13
--- a/app.rb
+++ b/app.rb
@ -2,7 +2,6 @@ require "bundler/setup"
 require "sinatra"
 require "sinatra/cookies"
 require "sinatra/multi_route"
-require "sinatra/quiet_logger"
 require "time"
 require "fileutils"
 require "json"
@ -21,15 +20,12 @@ $LOAD_PATH.unshift File.dirname(__FILE__) + "/lib"

 require "config"

-VERSION = "0.2.1"
-
 CHUNK_SIZE = 1024**2
 SESSION_SECRET_HEX_LENGTH = 64
 JWT_SECRET_HEX_LENGTH = 64
 DEFAULT_FLAKEY = 50

-NAME = "kubernaut".freeze
-ENV_PREFIX = NAME.upcase
+ENV_PREFIX = "KUBERNAUT"

 CLK_TCK = 100
 PROC_UPTIME_PATH = "/proc/uptime".freeze
@ -53,12 +49,9 @@ DURATION_PARTS = [

 config = Config.new

-set :quiet_logger_prefixes, %w[livez readyz]
 set :session_secret, config.session_secret.unwrap
 set :public_folder, __dir__ + "/static"

-register Sinatra::QuietLogger
-
 module Sinatra
  module RequestHeadersHelper
    def req_headers
@ -117,6 +110,7 @@ class TickTock
  def initialize
    @pid = ppid
    @procfs_f = format "/proc/%s/stat", @pid
+    puts @pid
  end

  def uptime
@ -167,7 +161,7 @@ class Sleep
  include State

  def initialize
-    @file = "/dev/shm/sleepy"
+    @file = "/dev/shm/sleep"
  end

  def asleep?
@ -184,11 +178,20 @@ class Sleep
 end

 def ppid
-  pid = ENV.fetch "PUMA_PID", Process.pid
-  begin
-    Integer pid
-  rescue ArgumentError
-    -1
+  pid = Process.pid
+  # self
+  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

@ -226,8 +229,6 @@ end

 enable :sessions

-puts "#{NAME} #{VERSION} staring, per aspera ad astra"
-
 configure do
  mime_type :json, "application/json"
 end
@ -278,10 +279,6 @@ helpers do
      @auth.credentials and
      @auth.credentials == ["qwer", "asdf"]
  end
-
-  def hostname
-    ENV["HOSTNAME"]
-  end
 end

 get "/" do
@ -301,23 +298,6 @@ get "/headers", provides: "json" do
  jsonify h, pretty:
 end

-get "/uptime", provides: "json" do
-  tt = TickTock.new
-  x = {started_at: tt.started_at, seconds: tt.uptime.to_i, human: human_time(tt.uptime.to_i)}
-
-  jsonify x
-end
-
-post "/api/livez/toggle" do
-  Health.instance.toggle
-  "ok\n"
-end
-
-post "/api/livez/sleep" do
-  Sleep.instance.toggle
-  "ok\n"
-end
-
 get "/livez" do
  error 503 unless Health.instance.healthy?

@ -326,6 +306,23 @@ get "/livez" do
  Health.instance.to_s
 end

+get "/livez/uptime" do
+  tt = TickTock.new
+  x = {started_at: tt.started_at, seconds: tt.uptime.to_i, human: human_time(tt.uptime.to_i)}
+
+  jsonify x
+end
+
+post "/livez/toggle" do
+  Health.instance.toggle
+  "ok\n"
+end
+
+post "/livez/sleep" do
+  Sleep.instance.toggle
+  "ok\n"
+end
+
 get "/readyz" do
  error 503 unless Ready.instance.ready?

@ -374,7 +371,7 @@ post "/halt" do
  nil
 end

-get "/pid", provides: "json" do
+get "/pid" do
  pretty = params.key? :pretty

  jsonify({ppid: ppid, pid: Process.pid}, pretty:)
@ -420,20 +417,6 @@ 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|
@ -473,14 +456,6 @@ 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])
--- a/charts/kubernaut/.helmignore
+++ b/charts/kubernaut/.helmignore
@ -1,23 +0,0 @@
-# Patterns to ignore when building packages.
-# This supports shell glob matching, relative path matching, and
-# negation (prefixed with !). Only one pattern per line.
-.DS_Store
-# Common VCS dirs
-.git/
-.gitignore
-.bzr/
-.bzrignore
-.hg/
-.hgignore
-.svn/
-# Common backup files
-*.swp
-*.bak
-*.tmp
-*.orig
-*~
-# Various IDEs
-.project
-.idea/
-*.tmproj
-.vscode/
--- a/charts/kubernaut/Chart.yaml
+++ b/charts/kubernaut/Chart.yaml
@ -1,24 +0,0 @@
-apiVersion: v2
-name: kubernaut
-description: A Helm chart for Kubernetes
-
-# A chart can be either an 'application' or a 'library' chart.
-#
-# Application charts are a collection of templates that can be packaged into versioned archives
-# to be deployed.
-#
-# Library charts provide useful utilities or functions for the chart developer. They're included as
-# a dependency of application charts to inject those utilities and functions into the rendering
-# pipeline. Library charts do not define any templates and therefore cannot be deployed.
-type: application
-
-# This is the chart version. This version number should be incremented each time you make changes
-# to the chart and its templates, including the app version.
-# Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.1
-
-# This is the version number of the application being deployed. This version number should be
-# incremented each time you make changes to the application. Versions are not expected to
-# follow Semantic Versioning. They should reflect the version the application is using.
-# It is recommended to use it with quotes.
-appVersion: "0.2.1"
--- a/charts/kubernaut/templates/NOTES.txt
+++ b/charts/kubernaut/templates/NOTES.txt
@ -1,22 +0,0 @@
-1. Get the application URL by running these commands:
-{{- if .Values.ingress.enabled }}
-{{- range $host := .Values.ingress.hosts }}
-  {{- range .paths }}
-  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
-  {{- end }}
-{{- end }}
-{{- else if contains "NodePort" .Values.service.type }}
-  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "kubernaut.fullname" . }})
-  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
-  echo http://$NODE_IP:$NODE_PORT
-{{- else if contains "LoadBalancer" .Values.service.type }}
-     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
-           You can watch its status by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "kubernaut.fullname" . }}'
-  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "kubernaut.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
-  echo http://$SERVICE_IP:{{ .Values.service.port }}
-{{- else if contains "ClusterIP" .Values.service.type }}
-  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "kubernaut.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
-  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
-  echo "Visit http://127.0.0.1:8080 to use your application"
-  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
-{{- end }}
--- a/charts/kubernaut/templates/_helpers.tpl
+++ b/charts/kubernaut/templates/_helpers.tpl
@ -1,62 +0,0 @@
-{{/*
-Expand the name of the chart.
-*/}}
-{{- define "kubernaut.name" -}}
-{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
-{{- end }}
-
-{{/*
-Create a default fully qualified app name.
-We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
-If release name contains chart name it will be used as a full name.
-*/}}
-{{- define "kubernaut.fullname" -}}
-{{- if .Values.fullnameOverride }}
-{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
-{{- else }}
-{{- $name := default .Chart.Name .Values.nameOverride }}
-{{- if contains $name .Release.Name }}
-{{- .Release.Name | trunc 63 | trimSuffix "-" }}
-{{- else }}
-{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
-{{- end }}
-{{- end }}
-{{- end }}
-
-{{/*
-Create chart name and version as used by the chart label.
-*/}}
-{{- define "kubernaut.chart" -}}
-{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
-{{- end }}
-
-{{/*
-Common labels
-*/}}
-{{- define "kubernaut.labels" -}}
-helm.sh/chart: {{ include "kubernaut.chart" . }}
-{{ include "kubernaut.selectorLabels" . }}
-{{- if .Chart.AppVersion }}
-app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
-{{- end }}
-app.kubernetes.io/managed-by: {{ .Release.Service }}
-{{- end }}
-
-{{/*
-Selector labels
-*/}}
-{{- define "kubernaut.selectorLabels" -}}
-app.kubernetes.io/name: {{ include "kubernaut.name" . }}
-app.kubernetes.io/instance: {{ .Release.Name }}
-{{- end }}
-
-{{/*
-Create the name of the service account to use
-*/}}
-{{- define "kubernaut.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
-{{- default (include "kubernaut.fullname" .) .Values.serviceAccount.name }}
-{{- else }}
-{{- default "default" .Values.serviceAccount.name }}
-{{- end }}
-{{- end }}
--- a/charts/kubernaut/templates/configmap.yaml
+++ b/charts/kubernaut/templates/configmap.yaml
@ -1,8 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ .Release.Name }}-configmap
-data:
-  {{- with.Values.cat }}
-  KUBERNAUT_CAT: {{ toYaml . }}
-  {{- end }}
--- a/charts/kubernaut/templates/deployment.yaml
+++ b/charts/kubernaut/templates/deployment.yaml
@ -1,78 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: {{ include "kubernaut.fullname" . }}
-  labels:
-    {{- include "kubernaut.labels" . | nindent 4 }}
-spec:
-  {{- if not .Values.autoscaling.enabled }}
-  replicas: {{ .Values.replicaCount }}
-  {{- end }}
-  selector:
-    matchLabels:
-      {{- include "kubernaut.selectorLabels" . | nindent 6 }}
-  template:
-    metadata:
-      {{- with .Values.podAnnotations }}
-      annotations:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
-      labels:
-        {{- include "kubernaut.labels" . | nindent 8 }}
-        {{- with .Values.podLabels }}
-        {{- toYaml . | nindent 8 }}
-        {{- end }}
-    spec:
-      {{- with .Values.imagePullSecrets }}
-      imagePullSecrets:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
-      serviceAccountName: {{ include "kubernaut.serviceAccountName" . }}
-      {{- with .Values.podSecurityContext }}
-      securityContext:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
-      containers:
-        - name: {{ .Chart.Name }}
-          {{- with .Values.securityContext }}
-          securityContext:
-            {{- toYaml . | nindent 12 }}
-          {{- end }}
-          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
-          imagePullPolicy: {{ .Values.image.pullPolicy }}
-          ports:
-            - name: http
-              containerPort: {{ .Values.service.port }}
-              protocol: TCP
-          {{- with .Values.livenessProbe }}
-          livenessProbe:
-            {{- toYaml . | nindent 12 }}
-          {{- end }}
-          {{- with .Values.readinessProbe }}
-          readinessProbe:
-            {{- toYaml . | nindent 12 }}
-          {{- end }}
-          {{- with .Values.resources }}
-          resources:
-            {{- toYaml . | nindent 12 }}
-          {{- end }}
-          {{- with .Values.volumeMounts }}
-          volumeMounts:
-            {{- toYaml . | nindent 12 }}
-          {{- end }}
-      {{- with .Values.volumes }}
-      volumes:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
-      {{- with .Values.nodeSelector }}
-      nodeSelector:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
-      {{- with .Values.affinity }}
-      affinity:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
-      {{- with .Values.tolerations }}
-      tolerations:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
--- a/charts/kubernaut/templates/hpa.yaml
+++ b/charts/kubernaut/templates/hpa.yaml
@ -1,32 +0,0 @@
-{{- if .Values.autoscaling.enabled }}
-apiVersion: autoscaling/v2
-kind: HorizontalPodAutoscaler
-metadata:
-  name: {{ include "kubernaut.fullname" . }}
-  labels:
-    {{- include "kubernaut.labels" . | nindent 4 }}
-spec:
-  scaleTargetRef:
-    apiVersion: apps/v1
-    kind: Deployment
-    name: {{ include "kubernaut.fullname" . }}
-  minReplicas: {{ .Values.autoscaling.minReplicas }}
-  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
-  metrics:
-    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
-    - type: Resource
-      resource:
-        name: cpu
-        target:
-          type: Utilization
-          averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
-    {{- end }}
-    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
-    - type: Resource
-      resource:
-        name: memory
-        target:
-          type: Utilization
-          averageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
-    {{- end }}
-{{- end }}
--- a/charts/kubernaut/templates/ingress.yaml
+++ b/charts/kubernaut/templates/ingress.yaml
@ -1,43 +0,0 @@
-{{- if .Values.ingress.enabled -}}
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: {{ include "kubernaut.fullname" . }}
-  labels:
-    {{- include "kubernaut.labels" . | nindent 4 }}
-  {{- with .Values.ingress.annotations }}
-  annotations:
-    {{- toYaml . | nindent 4 }}
-  {{- end }}
-spec:
-  {{- with .Values.ingress.className }}
-  ingressClassName: {{ . }}
-  {{- end }}
-  {{- if .Values.ingress.tls }}
-  tls:
-    {{- range .Values.ingress.tls }}
-    - hosts:
-        {{- range .hosts }}
-        - {{ . | quote }}
-        {{- end }}
-      secretName: {{ .secretName }}
-    {{- end }}
-  {{- end }}
-  rules:
-    {{- range .Values.ingress.hosts }}
-    - host: {{ .host | quote }}
-      http:
-        paths:
-          {{- range .paths }}
-          - path: {{ .path }}
-            {{- with .pathType }}
-            pathType: {{ . }}
-            {{- end }}
-            backend:
-              service:
-                name: {{ include "kubernaut.fullname" $ }}
-                port:
-                  number: {{ $.Values.service.port }}
-          {{- end }}
-    {{- end }}
-{{- end }}
--- a/charts/kubernaut/templates/service.yaml
+++ b/charts/kubernaut/templates/service.yaml
@ -1,15 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: {{ include "kubernaut.fullname" . }}
-  labels:
-    {{- include "kubernaut.labels" . | nindent 4 }}
-spec:
-  type: {{ .Values.service.type }}
-  ports:
-    - port: {{ .Values.service.port }}
-      targetPort: http
-      protocol: TCP
-      name: http
-  selector:
-    {{- include "kubernaut.selectorLabels" . | nindent 4 }}
--- a/charts/kubernaut/templates/serviceaccount.yaml
+++ b/charts/kubernaut/templates/serviceaccount.yaml
@ -1,13 +0,0 @@
-{{- if .Values.serviceAccount.create -}}
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: {{ include "kubernaut.serviceAccountName" . }}
-  labels:
-    {{- include "kubernaut.labels" . | nindent 4 }}
-  {{- with .Values.serviceAccount.annotations }}
-  annotations:
-    {{- toYaml . | nindent 4 }}
-  {{- end }}
-automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
-{{- end }}
--- a/charts/kubernaut/templates/tests/test-connection.yaml
+++ b/charts/kubernaut/templates/tests/test-connection.yaml
@ -1,15 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  name: "{{ include "kubernaut.fullname" . }}-test-connection"
-  labels:
-    {{- include "kubernaut.labels" . | nindent 4 }}
-  annotations:
-    "helm.sh/hook": test
-spec:
-  containers:
-    - name: wget
-      image: busybox
-      command: ['wget']
-      args: ['{{ include "kubernaut.fullname" . }}:{{ .Values.service.port }}']
-  restartPolicy: Never
--- a/charts/kubernaut/values.yaml
+++ b/charts/kubernaut/values.yaml
@ -1,123 +0,0 @@
-# Default values for kubernaut.
-# This is a YAML-formatted file.
-# Declare variables to be passed into your templates.
-
-# This will set the replicaset count more information can be found here: https://kubernetes.io/docs/concepts/workloads/controllers/replicaset/
-replicaCount: 1
-
-# This sets the container image more information can be found here: https://kubernetes.io/docs/concepts/containers/images/
-image:
-  repository: git.kill0.net/ryanc/kubernaut
-  # This sets the pull policy for images.
-  pullPolicy: IfNotPresent
-  # Overrides the image tag whose default is the chart appVersion.
-  tag: ""
-
-# This is for the secrets for pulling an image from a private repository more information can be found here: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
-imagePullSecrets: []
-# This is to override the chart name.
-nameOverride: ""
-fullnameOverride: ""
-
-# This section builds out the service account more information can be found here: https://kubernetes.io/docs/concepts/security/service-accounts/
-serviceAccount:
-  # Specifies whether a service account should be created
-  create: true
-  # Automatically mount a ServiceAccount's API credentials?
-  automount: true
-  # Annotations to add to the service account
-  annotations: {}
-  # The name of the service account to use.
-  # If not set and create is true, a name is generated using the fullname template
-  name: ""
-
-# This is for setting Kubernetes Annotations to a Pod.
-# For more information checkout: https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/
-podAnnotations: {}
-# This is for setting Kubernetes Labels to a Pod.
-# For more information checkout: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
-podLabels: {}
-
-podSecurityContext: {}
-  # fsGroup: 2000
-
-securityContext: {}
-  # capabilities:
-  #   drop:
-  #   - ALL
-  # readOnlyRootFilesystem: true
-  # runAsNonRoot: true
-  # runAsUser: 1000
-
-# This is for setting up a service more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/
-service:
-  # This sets the service type more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
-  type: ClusterIP
-  # This sets the ports more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/#field-spec-ports
-  port: 4567
-
-# This block is for setting up the ingress for more information can be found here: https://kubernetes.io/docs/concepts/services-networking/ingress/
-ingress:
-  enabled: true
-  className: ""
-  annotations: {}
-    # kubernetes.io/ingress.class: nginx
-    # kubernetes.io/tls-acme: "true"
-  hosts:
-    - host:
-      paths:
-        - path: /
-          pathType: ImplementationSpecific
-  tls: []
-  #  - secretName: chart-example-tls
-  #    hosts:
-  #      - chart-example.local
-
-resources: {}
-  # We usually recommend not to specify default resources and to leave this as a conscious
-  # choice for the user. This also increases chances charts run on environments with little
-  # resources, such as Minikube. If you do want to specify resources, uncomment the following
-  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
-  # limits:
-  #   cpu: 100m
-  #   memory: 128Mi
-  # requests:
-  #   cpu: 100m
-  #   memory: 128Mi
-
-# This is to setup the liveness and readiness probes more information can be found here: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/
-livenessProbe:
-  httpGet:
-    path: /livez
-    port: http
-readinessProbe:
-  httpGet:
-    path: /readyz
-    port: http
-
-# This section is for setting up autoscaling more information can be found here: https://kubernetes.io/docs/concepts/workloads/autoscaling/
-autoscaling:
-  enabled: true
-  minReplicas: 2
-  maxReplicas: 100
-  targetCPUUtilizationPercentage: 80
-  # targetMemoryUtilizationPercentage: 80
-
-# Additional volumes on the output Deployment definition.
-volumes: []
-# - name: foo
-#   secret:
-#     secretName: mysecret
-#     optional: false
-
-# Additional volumeMounts on the output Deployment definition.
-volumeMounts: []
-# - name: foo
-#   mountPath: "/etc/foo"
-#   readOnly: true
-
-nodeSelector: {}
-
-tolerations: []
-
-affinity: {}
--- a/config/puma.rb
+++ b/config/puma.rb
@ -1,5 +0,0 @@
-ENV["PUMA_PID"] = Process.pid.to_s
-
-port ENV.fetch("PORT", 4567)
-
-pidfile ENV["PIDFILE"] if ENV["PIDFILE"]
--- a/docker-bake.hcl
+++ b/docker-bake.hcl
@ -1,22 +0,0 @@
-group "default" {
-    targets = [ "bookworm", "alpine" ]
-}
-
-target "docker-metadata-action" {}
-target "docker-metadata-action-alpine" {}
-
-target "_common" {
-    args = {
-        RUBY_VERSION = "3.4.3"
-    }
-}
-
-target "bookworm" {
-    dockerfile = "./dockerfiles/bookworm.Dockerfile"
-    inherits = [ "_common", "docker-metadata-action" ]
-}
-
-target "alpine" {
-    dockerfile = "./dockerfiles/alpine.Dockerfile"
-    inherits = [ "_common", "docker-metadata-action-alpine" ]
-}
--- a/docker-compose.yml
+++ b/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
--- a/dockerfiles/alpine.Dockerfile
+++ b/dockerfiles/alpine.Dockerfile
@ -1,51 +0,0 @@
-ARG RUBY_VERSION="3.4.3"
-FROM docker.io/library/ruby:${RUBY_VERSION}-alpine AS base
-
-WORKDIR /kubernaut
-
-RUN <<EOT
-  apk update -q
-  apk add bash jemalloc
-  rm -rf /var/cache/apk
-  gem update --system --no-document
-  gem install -N bundler
-EOT
-
-ENV RACK_ENV="production" \
-  BUNDLE_DEPLOYMENT=true \
-  BUNDLE_PATH="/usr/local/bundle" \
-  BUNDLE_WITHOUT="development test"
-
-FROM base AS build
-
-RUN <<EOT
-  apk add musl-dev gcc make
-  rm -rf /var/cache/apk
-EOT
-
-COPY Gemfile Gemfile.lock ./
-
-RUN <<EOT
-  bundle install
-  rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git
-EOT
-
-COPY . .
-
-FROM base
-
-ENV PORT=4567
-
-RUN <<EOT
-  addgroup --system --gid 666 kubernaut
-  adduser --system --uid 666 --ingroup kubernaut --shell /bin/bash --disabled-password kubernaut
-EOT
-
-COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
-COPY --from=build /kubernaut /kubernaut
-
-USER kubernaut:kubernaut
-
-EXPOSE $PORT
-ENTRYPOINT [ "/kubernaut/dockerfiles/entrypoint.sh" ]
-CMD [ "bundle", "exec", "puma" ]
--- a/dockerfiles/bookworm.Dockerfile
+++ b/dockerfiles/bookworm.Dockerfile
@ -1,52 +0,0 @@
-ARG RUBY_VERSION="3.4.3"
-FROM docker.io/library/ruby:${RUBY_VERSION}-slim-bookworm AS base
-
-WORKDIR /kubernaut
-
-RUN <<EOT
-  apt-get update -qq
-  apt-get install --yes --no-install-recommends libjemalloc2
-  rm -rf /var/lib/apt/lists /var/cache/apt/archives
-  gem update --system --no-document
-  gem install -N bundler
-EOT
-
-ENV RACK_ENV="production" \
-  BUNDLE_DEPLOYMENT=true \
-  BUNDLE_PATH="/usr/local/bundle" \
-  BUNDLE_WITHOUT="development test"
-
-FROM base AS build
-
-RUN <<EOT
-  apt-get update -qq
-  apt-get install --yes --no-install-recommends gcc make libc-dev
-  rm -rf /var/lib/apt/lists /var/cache/apt/archives
-EOT
-
-COPY Gemfile Gemfile.lock ./
-
-RUN <<EOT
-  bundle install
-  rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git
-EOT
-
-COPY . .
-
-FROM base
-
-ENV PORT=4567
-
-RUN <<EOT
-  groupadd --system --gid 666 kubernaut
-  useradd --system --uid 666 --gid kubernaut --create-home --shell /bin/bash kubernaut
-EOT
-
-COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
-COPY --from=build /kubernaut /kubernaut
-
-USER kubernaut:kubernaut
-
-EXPOSE $PORT
-ENTRYPOINT [ "/kubernaut/dockerfiles/entrypoint.sh" ]
-CMD [ "bundle", "exec", "puma" ]
--- a/dockerfiles/entrypoint.sh
+++ b/dockerfiles/entrypoint.sh
@ -1,15 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-# output debugging info
-ruby --version
-printf "rubygems %s\n" "$(gem --version)"
-bundle version
-
-if [ -z "${LD_PRELOAD+x}" ]; then
-    LD_PRELOAD="$(find /usr/lib -name libjemalloc.so.2 -print -quit)"
-    export LD_PRELOAD
-fi
-
-exec "${@}"
--- a/kustomize/app/deployment.yaml
+++ b/kustomize/app/deployment.yaml
@ -16,7 +16,7 @@ spec:
    spec:
      containers:
        - name: kubernaut
-          image: git.kill0.net/ryanc/kubernaut:0.2.1
+          image: git.kill0.net/ryanc/kubernaut:latest
          imagePullPolicy: Always
          ports:
            - name: sinatra-web
--- a/sig/app.rbs
+++ b/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