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class ApplicationController < ActionController::Base
    protect_from_forgery with: exception

    def append_info_to_payload(payload)
        super
        payload[:host] = request.host
        payload[:remote_ip] = request.remote_ip
        payload[:ip] = request.ip
    end
end

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# config/environments/development.rb
Rails.application.configure do
  config.lograge.formatter = Lograge::Formatters::Json.new
  config.lograge.enabled = true
  config.lograge.base_controller_class = ['ActionController::Base']
  config.lograge.custom_options = lambda do |event|
    {
      request_time: Time.now,
      application: Rails.application.class.parent_name,
      process_id: Process.pid,

tasdikrahman

[my-app-fbf8d7bfc-wk5cd] I, [2020-07-01T07:19:05.007174 #1]  INFO -- : [ec0ad0ba-dfb2-419b-bd81-5feb7dacb308] Processing by HealthCheckController#ping as HTML
[my-app-fbf8d7bfc-wk5cd] I, [2020-07-01T07:19:05.007874 #1]  INFO -- : [ec0ad0ba-dfb2-419b-bd81-5feb7dacb308] Completed 200 OK in 0ms (Views: 0.2ms)
[my-app-fbf8d7bfc-wk5cd] I, [2020-07-01T07:19:05.290929 #1]  INFO -- : [86332306-62e4-412e-a690-eee8253ab1c8] Started GET "/ping" for 10.177.3.1 at 2020-07-01 07:19:05 +0000
[my-app-fbf8d7bfc-wk5cd] I, [2020-07-01T07:19:05.292363 #1]  INFO -- : [86332306-62e4-412e-a690-eee8253ab1c8] Processing by HealthCheckController#ping as HTML

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# config/routes.rb
Rails.application.routes.draw do
    get '/ping', to: 'health_check#ping'
end

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# config/environments/development.rb
Rails.application.configure do
    config.log_tags = [:request_id]
    config.log_level = :debug
end

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# app/controllers/health_check_controller.rb
class HealthCheckController < ActionController::Base
  def ping
    render json: { success: true, errors: nil, data: 'pong' }, status: :ok
  end
end

tasdikrahman

# borrowed and modified from https://github.com/shelleg/kubernetes-101
apiVersion: apps/v1 
kind: Deployment
metadata:
  labels:
    app: ping-server
  name: ping-server
spec:
  replicas: 2
  selector:

tasdikrahman

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: foo
  namespace: default
spec:
  host: foo.default.svc.cluster.local
  subsets:
  - labels:
      deployment-id: "1"

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apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: foo
  namespace: default
spec:
  gateways:
  - default-gateway
  - mesh
  hosts:

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apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis-cache
spec:
  selector:
    matchLabels:
      app: store
  replicas: 3
  template: