One liner command to get restart reason for a POD in Kubernetes
Run:
kubectl describe pod -n <namespace> <Pod name> | grep -A2 -B2 Reason
For e.g.:
kubectl describe pod -n myns my-pod-6d9bdcfbfc-k9jqw | grep -A2 -B2 Reason
Graylog - an easy solution for log management
Recently, I was researching for opensource log management tools. I had only two requirements. Log Search and Log analytics. A lot of posts in the internet suggested me to use an ELK stack. But, I wanted to do something different. I found graylog as an alternative to ELK. One can setup and run it in minutes. It uses mongodb, elastic search and graylog server. Here is the login page: grylog provides different options to stream logs into graylog server. I used the simple UDP listener and forwarded logs from multiple devices into this listener. Next step is to create dashboards using the search. Here is the search page: Once search is done, you can add the widgets to a dashboard. The dashboard will help you to get the summary of your devices at one shot. It is also possible to generate alerts on different conditions. More here: https://www.graylog.org/
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