Quiz: In bash shell scripting, what does the construct '2>&1' perform?
2>&1 duplicates file descriptor 2 (stderr) to file descriptor 1 (stdout), combining error logs with standard output.
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2>&1 duplicates file descriptor 2 (stderr) to file descriptor 1 (stdout), combining error logs with standard output.
AWS Lambda is a serverless compute service. You upload your function code and Lambda handles scaling, patching, and infrastructure.
YAML anchors are defined using an ampersand ( &name ) and referenced using an asterisk alias ( *name ).
… nfrastructure as Code (IaC) means managing and provisioning infrastructure through machine-readable config files (e.g. Terraform, CloudFormation).
Infrastructure as Code (IaC) enables provisioning and managing cloud infrastructure using declarative configuration files (e.g. Terraform, CloudFormation).
AWS Lambda lets you run functions without provisioning or managing servers, scaling automatically from a few requests per day to thousands per second.
… lets you run Docker containers without having to provision, configure, patch, or scale virtual machine clusters yourself.
Prometheus acts as the time-series metric collector and alerting engine, while Grafana provides rich visualization dashboards.