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stern:tldr:a18a9
This command utilizes the Stern tool to view and tail logs from Kubernetes pods that match a specific label selector. Here is an explanation of each part of the command:
-
stern
: Stern is a command-line tool used for tailing logs from multiple pods or containers in Kubernetes. It provides a convenient way to view logs in real-time. -
${pod_query}
: This is a placeholder variable that represents the query to select the pods whose logs you want to tail. The actual query would be replaced with the desired value when executing the command. -
--selector ${release=canary}
: This parameter is used to specify the label selector for the pods. In this case, it selects pods with a labelrelease
that has a value ofcanary
.
By running this command with the appropriate values provided for ${pod_query}
, it will tail and display logs from the selected pods that match the defined label selector.