Stern allows you to tail multiple pods on Kubernetes and multiple containers within the pod. Each result is color coded for quicker debugging.
The query is a regular expression so the pod name can easily be filtered and you don't need to specify the exact id (for instance omitting the deployment id). If a pod is deleted it gets removed from tail and if a new is added it automatically gets tailed.
When a pod contains multiple containers Stern can tail all of them too without having to do this manually for each one. Simply specify the container flag to limit what containers to show. By default all containers are listened to.
go get -u github.com/wercker/sternNAME:
stern - Tail multiple pods and containers from Kubernetes
USAGE:
stern [options] pod-query
VERSION:
1.0.0
COMMANDS:
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS:
--container value, -c value Container name when multiple containers in pod (default: ".*")
--timestamps, -t Print timestamps
--since value, -s value Return logs newer than a realtive duration like 5s, 2m, or 3h. Defaults to all logs.
--context value Kubernetes context to use
--namespace value Kubernetes namespace to use (default: "default")
--kube-config value Path to kubeconfig file to use
--help, -h show help
--version, -v print the version
Tail the gateway container running inside of the envvars pod on staging
stern --context staging --container gateway envvars
Show auth activity from 15min ago with timestamps
stern -t --since 15m auth
Follow the development of some-new-feature in minikube
stern --context minikube some-new-feature
View pods from another namespace
stern --namespace kube-system kubernetes-dashboard
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