CODEWITHSUNDEEP
kubernetesgoogle-cloud-platformruby-on-rails-5stackdrivergoogle-cloud-logging
Bruno Quaresma
Bruno Quaresma

Reputation: 10737

FATAL log is marked as INFO on Google Cloud Kubernetes

I have an app using Rails 2.5.1 which is deployed on Google Cloud Kubernetes but the logs are not working good.The FATAL errors are displayed as INFO logs instead of ERROR or CRITICAL.

enter image description here

Extra context:

Thanks.

[UPDATE]

I updated my cluster to use the newest Stackdriver API but it stills not working and Rails.logger.error is displayed as INFO.

enter image description here

Upvotes: 2

Views: 1504

Answers (2)

Bruno Quaresma
Bruno Quaresma

Reputation: 10737

I got this working changing the log format to use JSON.

config.log_formatter = proc do |severity, datetime, progname, msg|
    message = msg
    message << " from #{progname}" if progname.present?
    content = JSON.dump(timestamp: datetime.to_s, severity: severity, message: message)
    content << "\n"
    content
  end

Upvotes: 3

Serhii
Serhii

Reputation: 4471

Have a look at the documentation Cloud Logging for Legacy Logging and Monitoring section Best practices:

Severities: By default, logs written to the standard output are on the INFO level and logs written to the standard error are on the ERROR level. Structured logs can include a severity field, which defines the log's severity.

and because you're using RAILS_LOG_TO_STDOUT=true log events generated by Ruby you can see with severity INFO.

Keep in mind that you should migrate to Kubernetes Engine Monitoring:

Warning: Legacy Logging and Monitoring support for Google Kubernetes Engine is deprecated. If you are using Legacy Logging and Monitoring, then you must migrate to Kubernetes Engine Monitoring before support for Legacy Logging and Monitoring is removed.

it's better to return to this "issue" after migration.

EDIT Have a look at the documentation Writing Logs section Writing log entries where you can find an example for Ruby:

Here is some sample code to write a single log entry to mylog. The service, region, labels, and other content will change depending on the entry and the application doing the writing.

require "google/cloud/logging"

logging = Google::Cloud::Logging.new project: "my-gcp-project-id"

entry = logging.entry entry.log_name = "my_application_log" 
entry.payload  = "Log message" 
entry.severity = :NOTICE 
entry.resource.type = "gae_app" 
entry.resource.labels[:module_id] = "default" 
entry.resource.labels[:version_id] = "20160101t163030"

logging.write_entries entry

Upvotes: 1

Related Questions