Module: LanguageOperator::CLI::Commands::System::Helpers::PodManager

Defined in:
lib/language_operator/cli/commands/system/helpers/pod_manager.rb

Overview

Pod management utilities for exec command

Instance Method Summary collapse

Instance Method Details

#create_agent_configmap(name, code) ⇒ Object

Create a ConfigMap with agent code



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 13

def create_agent_configmap(name, code)
  configmap = {
    'apiVersion' => 'v1',
    'kind' => 'ConfigMap',
    'metadata' => {
      'name' => name,
      'namespace' => ctx.namespace
    },
    'data' => {
      'agent.rb' => code
    }
  }

  ctx.client.create_resource(configmap)
end

#create_test_pod(name, configmap_name, image) ⇒ Object

Create a test pod for running the agent



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 30

def create_test_pod(name, configmap_name, image)
  # Detect available models in the cluster
  model_env = detect_model_config

  if model_env.nil?
    Formatters::ProgressFormatter.warn('Could not detect model configuration from cluster')
    Formatters::ProgressFormatter.warn('Agent may fail without MODEL_ENDPOINTS configured')
  end

  env_vars = [
    { 'name' => 'AGENT_NAME', 'value' => name },
    { 'name' => 'AGENT_MODE', 'value' => 'autonomous' },
    { 'name' => 'AGENT_CODE_PATH', 'value' => '/etc/agent/code/agent.rb' },
    { 'name' => 'CONFIG_PATH', 'value' => '/nonexistent/config.yaml' }
  ]

  # Add model configuration if available
  env_vars += model_env if model_env

  pod = {
    'apiVersion' => 'v1',
    'kind' => 'Pod',
    'metadata' => {
      'name' => name,
      'namespace' => ctx.namespace,
      'labels' => Constants::KubernetesLabels.test_agent_labels(name).merge(
        Constants::KubernetesLabels::KIND_LABEL => 'LanguageAgent'
      )
    },
    'spec' => {
      'restartPolicy' => 'Never',
      'containers' => [
        {
          'name' => 'agent',
          'image' => image,
          'imagePullPolicy' => 'Always',
          'env' => env_vars,
          'volumeMounts' => [
            {
              'name' => 'agent-code',
              'mountPath' => '/etc/agent/code',
              'readOnly' => true
            }
          ]
        }
      ],
      'volumes' => [
        {
          'name' => 'agent-code',
          'configMap' => {
            'name' => configmap_name
          }
        }
      ]
    }
  }

  ctx.client.create_resource(pod)
end

#delete_configmap(name) ⇒ Object

Delete a ConfigMap



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 202

def delete_configmap(name)
  ctx.client.delete_resource('ConfigMap', name, ctx.namespace)
rescue K8s::Error::NotFound
  # Already deleted
end

#delete_pod(name) ⇒ Object

Delete a pod



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 195

def delete_pod(name)
  ctx.client.delete_resource('Pod', name, ctx.namespace)
rescue K8s::Error::NotFound
  # Already deleted
end

#detect_model_config ⇒ Object

Detect model configuration from the cluster



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 91

def detect_model_config
  models = ctx.client.list_resources('LanguageModel', namespace: ctx.namespace)
  return nil if models.empty?

  # Use first available model
  model = models.first
  model_name = model.dig('metadata', 'name')
  model_id = model.dig('spec', 'modelName')

  # Build endpoint URL (port 8000 is the model service port)
  endpoint = "http://#{model_name}.#{ctx.namespace}.svc.cluster.local:8000"

  [
    { 'name' => 'MODEL_ENDPOINTS', 'value' => endpoint },
    { 'name' => 'LLM_MODEL', 'value' => model_id },
    { 'name' => 'OPENAI_API_KEY', 'value' => 'sk-dummy-key-for-local-proxy' }
  ]
rescue StandardError => e
  Formatters::ProgressFormatter.error("Failed to detect model configuration: #{e.message}")
  nil
end

#get_pod_status(name) ⇒ Object

Get pod status



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 189

def get_pod_status(name)
  pod = ctx.client.get_resource('Pod', name, ctx.namespace)
  pod.to_h.fetch('status', {})
end

#stream_pod_logs(name, timeout: 300) ⇒ Object

Stream pod logs until completion



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 129

def stream_pod_logs(name, timeout: 300)
  require 'open3'

  cmd = "kubectl logs -f -n #{ctx.namespace} #{name} 2>&1"
  Open3.popen3(cmd) do |_stdin, stdout, _stderr, wait_thr|
    # Set up timeout
    start_time = Time.now

    # Stream logs
    stdout.each_line do |line|
      puts line

      # Check timeout
      if Time.now - start_time > timeout
        Process.kill('TERM', wait_thr.pid)
        raise "Log streaming timed out after #{timeout} seconds"
      end
    end

    # Wait for process to complete
    wait_thr.value
  end
rescue Errno::EPIPE
  # Pod terminated, logs finished
end

#wait_for_pod_start(name, timeout: 60) ⇒ Object

Wait for pod to start (running or terminated)



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 114

def wait_for_pod_start(name, timeout: 60)
  start_time = Time.now
  loop do
    pod = ctx.client.get_resource('Pod', name, ctx.namespace)
    phase = pod.dig('status', 'phase')

    return if %w[Running Succeeded Failed].include?(phase)

    raise "Pod #{name} did not start within #{timeout} seconds" if Time.now - start_time > timeout

    sleep 1
  end
end

#wait_for_pod_termination(name, timeout: 10) ⇒ Object

Wait for pod to terminate and get exit code



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# File 'lib/language_operator/cli/commands/system/helpers/pod_manager.rb', line 156

def wait_for_pod_termination(name, timeout: 10)
  # Give the pod a moment to fully transition after logs complete
  sleep 2

  start_time = Time.now
  loop do
    pod = ctx.client.get_resource('Pod', name, ctx.namespace)
    phase = pod.dig('status', 'phase')
    container_status = pod.dig('status', 'containerStatuses', 0)

    # Pod completed successfully or failed
    if %w[Succeeded Failed].include?(phase) && container_status && (terminated = container_status.dig('state', 'terminated'))
      return terminated['exitCode']
    end

    # Check timeout
    if Time.now - start_time > timeout
      # Try one last time
      if container_status && (terminated = container_status.dig('state', 'terminated'))
        return terminated['exitCode']
      end

      return nil
    end

    sleep 0.5
  rescue K8s::Error::NotFound
    # Pod was deleted before we could get status
    return nil
  end
end