how to set google credentials from google credential.json file in production

[kashifcodility]

Hi,

i'm using gem 'google-cloud-run-client' for creating services. below is my code

                ::Google::Cloud::Run::V2::Services::Client.configure do |config|
                   config.timeout = 50.0
                end

                client = Google::Cloud::Run::V2::Services::Client.new

               request = Google::Cloud::Run::V2::CreateServiceRequest.new(
               parent: "projects/bot-up-2021/locations/us-central1",
               service: {
                    template: {
                       containers: [{
                          image: "us-central1-docker.pkg.dev/dev-setup:latest",
                      env: [
                         {
                           name: "INTERVIEW_QUESTIONS",
                           value: application.questions
                         },
                        {
                           name: "INTERVIEWEE_PROFILE",
                           value: application.interviewee_profile
                        },
                        {
                            name: "INTERVIEW_CONTEXT",
                            value: application.interview_context
                        },
                        {
                           name: "AI_MODEL",
                           value: application&.gpt_model&.name
                        },
                        {
                           name: "OPENAI_ORGANIZATION_ID", 
                           value: "org-dsfh342hhj23423h4hj2h"
                        },
                        {
                          name: "OPENAI_API_KEY",
                          value: "sk-proj-xjfwerlwehhfsdjfkljdklfjlksjld"
                        }
                       ]
                     },]                
                      }
                     },
                       service_id: application.slug,
                       validate_only: false
                   )
      # Call the create_service method.
      result = client.create_service request
      result.wait_until_done!

      if result.response?
        result.response.name.split('/').last
        p result.response
      else            
        puts "No response received."
      end

    rescue Exception => e
       binding.pry    
    end

in local environment i am setting like export GOOGLE_APPLICATION_CREDENTIALS="/home/lap-053/rails/interviewManagementSystem/interviewbot-2023-7a0ec8bff648.json". but i can't do it in production.

Questions

1. what will be solution for it to set "GOOGLE_APPLICATION_CREDENTIALS" in production mode when deploy it on google cloud run?
2. i want also set "CreateServiceRequest" as public not private, so it should not authenticate. how i can set parameters for it?

Kindly help.

Thanks