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v0.1.2 ... main

Author SHA1 Message Date
8e9a37b477
v0.1.4
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2025-04-03 22:59:31 -05:00
7831c5da16
/pid route should return JSON
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2025-04-03 20:52:32 -05:00
8667d0571f
have Puma set the PID of the master process 2025-04-03 20:52:32 -05:00
bb7f309b34
v0.1.3
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2025-04-02 21:07:52 -05:00
9b2d2f9522
enable Kubernetes HPA in Helm chart 2025-04-02 21:06:11 -05:00
a30c6d7cb8
reorder routes 2025-04-02 21:01:45 -05:00
20c34f3c76
move uptime route to root, /uptime 2025-04-02 21:01:18 -05:00
dc9b8b7cc7
move /livez control routes under /api 2025-04-02 21:00:16 -05:00
149b42825f
log kubernaut version number that is compatible with Puma 2025-04-02 20:59:10 -05:00
2285def168
s/sleep/sleepy/g 2025-04-02 20:58:20 -05:00
a83fa30cd4
quiet logger for /livez and /readyz 2025-04-02 20:57:13 -05:00
5 changed files with 29 additions and 36 deletions

56
app.rb
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@ -2,6 +2,7 @@ require "bundler/setup"
require "sinatra" require "sinatra"
require "sinatra/cookies" require "sinatra/cookies"
require "sinatra/multi_route" require "sinatra/multi_route"
require "sinatra/quiet_logger"
require "time" require "time"
require "fileutils" require "fileutils"
require "json" require "json"
@ -20,7 +21,7 @@ $LOAD_PATH.unshift File.dirname(__FILE__) + "/lib"
require "config" require "config"
VERSION = "0.1.2" VERSION = "0.1.4"
CHUNK_SIZE = 1024**2 CHUNK_SIZE = 1024**2
SESSION_SECRET_HEX_LENGTH = 64 SESSION_SECRET_HEX_LENGTH = 64
@ -52,9 +53,12 @@ DURATION_PARTS = [
config = Config.new config = Config.new
set :quiet_logger_prefixes, %w[livez readyz]
set :session_secret, config.session_secret.unwrap set :session_secret, config.session_secret.unwrap
set :public_folder, __dir__ + "/static" set :public_folder, __dir__ + "/static"
register Sinatra::QuietLogger
module Sinatra module Sinatra
module RequestHeadersHelper module RequestHeadersHelper
def req_headers def req_headers
@ -113,7 +117,6 @@ class TickTock
def initialize def initialize
@pid = ppid @pid = ppid
@procfs_f = format "/proc/%s/stat", @pid @procfs_f = format "/proc/%s/stat", @pid
puts @pid
end end
def uptime def uptime
@ -164,7 +167,7 @@ class Sleep
include State include State
def initialize def initialize
@file = "/dev/shm/sleep" @file = "/dev/shm/sleepy"
end end
def asleep? def asleep?
@ -181,20 +184,11 @@ class Sleep
end end
def ppid def ppid
pid = Process.pid pid = ENV.fetch "PUMA_PID", Process.pid
# self begin
ps = File.open "/proc/#{pid}/stat", &:readline Integer pid
ps = ps.split(" ") rescue ArgumentError
ppid = Integer(ps[3]) -1
# ppid
ps = File.open "/proc/#{ppid}/stat", &:readline
ps = ps.split(" ")
if ps[1].include? "ruby"
ppid
else
pid
end end
end end
@ -232,9 +226,7 @@ end
enable :sessions enable :sessions
on_start do puts "#{NAME} #{VERSION} staring, per aspera ad astra"
puts "#{NAME} #{VERSION} staring, per aspera ad astra"
end
configure do configure do
mime_type :json, "application/json" mime_type :json, "application/json"
@ -309,31 +301,31 @@ get "/headers", provides: "json" do
jsonify h, pretty: jsonify h, pretty:
end end
get "/livez" do get "/uptime", provides: "json" do
error 503 unless Health.instance.healthy?
return Health.instance.to_json if request.env["HTTP_ACCEPT"] == "application/json"
Health.instance.to_s
end
get "/livez/uptime" do
tt = TickTock.new tt = TickTock.new
x = {started_at: tt.started_at, seconds: tt.uptime.to_i, human: human_time(tt.uptime.to_i)} x = {started_at: tt.started_at, seconds: tt.uptime.to_i, human: human_time(tt.uptime.to_i)}
jsonify x jsonify x
end end
post "/livez/toggle" do post "/api/livez/toggle" do
Health.instance.toggle Health.instance.toggle
"ok\n" "ok\n"
end end
post "/livez/sleep" do post "/api/livez/sleep" do
Sleep.instance.toggle Sleep.instance.toggle
"ok\n" "ok\n"
end end
get "/livez" do
error 503 unless Health.instance.healthy?
return Health.instance.to_json if request.env["HTTP_ACCEPT"] == "application/json"
Health.instance.to_s
end
get "/readyz" do get "/readyz" do
error 503 unless Ready.instance.ready? error 503 unless Ready.instance.ready?
@ -382,7 +374,7 @@ post "/halt" do
nil nil
end end
get "/pid" do get "/pid", provides: "json" do
pretty = params.key? :pretty pretty = params.key? :pretty
jsonify({ppid: ppid, pid: Process.pid}, pretty:) jsonify({ppid: ppid, pid: Process.pid}, pretty:)

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@ -15,10 +15,10 @@ type: application
# This is the chart version. This version number should be incremented each time you make changes # 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. # to the chart and its templates, including the app version.
# Versions are expected to follow Semantic Versioning (https://semver.org/) # Versions are expected to follow Semantic Versioning (https://semver.org/)
version: 0.1.2 version: 0.1.4
# This is the version number of the application being deployed. This version number should be # 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 # 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. # follow Semantic Versioning. They should reflect the version the application is using.
# It is recommended to use it with quotes. # It is recommended to use it with quotes.
appVersion: "0.1.2" appVersion: "0.1.4"

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@ -97,7 +97,7 @@ readinessProbe:
# This section is for setting up autoscaling more information can be found here: https://kubernetes.io/docs/concepts/workloads/autoscaling/ # This section is for setting up autoscaling more information can be found here: https://kubernetes.io/docs/concepts/workloads/autoscaling/
autoscaling: autoscaling:
enabled: false enabled: true
minReplicas: 2 minReplicas: 2
maxReplicas: 100 maxReplicas: 100
targetCPUUtilizationPercentage: 80 targetCPUUtilizationPercentage: 80

1
config/puma.rb Normal file
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@ -0,0 +1 @@
ENV["PUMA_PID"] = Process.pid.to_s

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@ -16,7 +16,7 @@ spec:
spec: spec:
containers: containers:
- name: kubernaut - name: kubernaut
image: git.kill0.net/ryanc/kubernaut:0.1.2 image: git.kill0.net/ryanc/kubernaut:0.1.4
imagePullPolicy: Always imagePullPolicy: Always
ports: ports:
- name: sinatra-web - name: sinatra-web