You are deploying your application to a Compute Engine virtual machine instance.
Your application is configured to write its log files to disk.
You want to view the logs in Stackdriver Logging without changing the application code.
What should you do?
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A. B. C. D.A.
Option A, installing the Stackdriver Logging Agent and configuring it to send the application logs, is the correct answer to this question.
Stackdriver Logging is a logging service provided by Google Cloud Platform that allows you to store, search, analyze, and monitor log data and events from your applications and infrastructure. It is integrated with many Google Cloud Platform services, including Compute Engine, which allows you to view logs generated by your Compute Engine virtual machine instances in Stackdriver Logging.
To view the logs in Stackdriver Logging without changing the application code, you can use the Stackdriver Logging Agent. The Stackdriver Logging Agent is a lightweight, open-source, and configurable agent that runs on your virtual machine instances and collects and sends logs to Stackdriver Logging.
To use the Stackdriver Logging Agent, you need to follow these steps:
You can install the Stackdriver Logging Agent on your virtual machine instance using one of the following methods:
You can configure the Stackdriver Logging Agent to send the application logs by adding a log entry in the agent's configuration file. The log entry specifies the log file path and the log type. For example, if your application writes its logs to a file called "myapp.log" in the directory "/var/log/myapp", you can add the following log entry to the agent's configuration file:
luainput { type = "tail" path = "/var/log/myapp/myapp.log" format = "json" } This configuration tells the agent to monitor the "/var/log/myapp/myapp.log" file, parse each line as JSON, and send the logs to Stackdriver Logging.
Once you have installed and configured the Stackdriver Logging Agent, you can verify that the logs are being sent to Stackdriver Logging by checking the Logs Viewer in the Google Cloud Platform Console. The Logs Viewer allows you to filter, search, and analyze your logs in real-time.
In conclusion, to view the logs in Stackdriver Logging without changing the application code, you should install the Stackdriver Logging Agent and configure it to send the application logs. This approach is easy to set up, highly configurable, and allows you to centralize all your logs in one place.