Class: KuberKit::Shell::Commands::KubectlCommands

Inherits:
Object
  • Object
show all
Defined in:
lib/kuber_kit/shell/commands/kubectl_commands.rb

Instance Method Summary collapse

Instance Method Details

#apply_file(shell, file_path, kubeconfig_path: nil, namespace: nil) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 27

def apply_file(shell, file_path, kubeconfig_path: nil, namespace: nil)
  kubectl_run(shell, "apply -f #{file_path}", kubeconfig_path: kubeconfig_path, namespace: namespace)
end

#delete_resource(shell, resource_type, resource_name, kubeconfig_path: nil, namespace: nil) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 55

def delete_resource(shell, resource_type, resource_name, kubeconfig_path: nil, namespace: nil)
  command = %Q{delete #{resource_type} #{resource_name}}

  kubectl_run(shell, command, kubeconfig_path: kubeconfig_path, namespace: namespace)
end

#exec(shell, pod_name, command, args: nil, kubeconfig_path: nil, interactive: false, namespace: nil) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 31

def exec(shell, pod_name, command, args: nil, kubeconfig_path: nil, interactive: false, namespace: nil)
  command_parts = []
  command_parts << "exec"

  if args
    command_parts << args
  end

  command_parts << pod_name
  command_parts << "-- #{command}"
  kubectl_run(shell, command_parts, kubeconfig_path: kubeconfig_path, interactive: interactive, namespace: namespace)
end

#find_resources(shell, resource_type, resource_name, jsonpath: ".items[*].metadata.name", kubeconfig_path: nil, namespace: nil) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 49

def find_resources(shell, resource_type, resource_name, jsonpath: ".items[*].metadata.name", kubeconfig_path: nil, namespace: nil)
  command = %Q{get #{resource_type} --field-selector=metadata.name=#{resource_name} -o jsonpath='{#{jsonpath}}'}

  kubectl_run(shell, command, kubeconfig_path: kubeconfig_path, namespace: namespace)
end

#kubectl_run(shell, command_list, kubeconfig_path: nil, namespace: nil, interactive: false) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 5

def kubectl_run(shell, command_list, kubeconfig_path: nil, namespace: nil, interactive: false)
  command_parts = []
  if kubeconfig_path
    command_parts << "KUBECONFIG=#{kubeconfig_path}"
  end

  command_parts << "kubectl"

  if namespace
    command_parts << "-n #{namespace}"
  end

  command_parts += Array(command_list)

  # TODO: investigate how to do it with shell.
  if interactive
    system(command_parts.join(" "))
  else
    shell.exec!(command_parts.join(" "))
  end
end

#patch_deployment(shell, deployment_name, specs, kubeconfig_path: nil, namespace: nil) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 75

def patch_deployment(shell, deployment_name, specs, kubeconfig_path: nil, namespace: nil)
  specs_json = JSON.dump(specs).gsub('"', '\"')

  command = %Q{patch deployment #{deployment_name} -p "#{specs_json}"}

  kubectl_run(shell, command, kubeconfig_path: kubeconfig_path, namespace: namespace)
end

#resource_exists?(shell, resource_type, resource_name, kubeconfig_path: nil, namespace: nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 44

def resource_exists?(shell, resource_type, resource_name, kubeconfig_path: nil, namespace: nil)
  result = find_resources(shell, resource_type, resource_name, kubeconfig_path: kubeconfig_path, namespace: namespace)
  result && result != ""
end

#rolling_restart(shell, deployment_name, kubeconfig_path: nil, namespace: nil) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/kubectl_commands.rb', line 61

def rolling_restart(shell, deployment_name, kubeconfig_path: nil, namespace: nil)
  patch_deployment(shell, deployment_name, {
    spec: {
      template: {
        metadata: {
          labels: {
            redeploy: "$(date +%s)"
          }
        }
      }
    }
  }, kubeconfig_path: kubeconfig_path, namespace: namespace)
end