kubernetes-health-check

I'm attempting to create a cluster on Google Kubernetes Engine that runs nginx, RStudio server and two Shiny apps, following and adapting this guide . I have 4 workloads that are all green in the UI, deployed via: kubectl run nginx --image=nginx --port=80 kubectl run rstudio --image gcr.io/gcer-public/persistent-rstudio:latest --port 8787 kubectl run shiny1 --image gcr.io/gcer-public/shiny-googleauthrdemo:latest --port 3838 kubectl run shiny5 --image=flaviobarros/shiny-wordcloud --port=80 They were then all exposed as node ports via: kubectl expose deployment nginx --target-port=80 --type

I have deployed kubernetes v1.8 in my workplace. I have created roles for admin and view access to namespaces 3months ago. In the initial phase RBAC is working as per the access given to the users. Now RBAC is not happening every who has access to the cluster is having clusteradmin access. Can you suggest the errors/changes that had to be done? Ensure the RBAC authorization mode is still being used ( --authorization-mode=…,RBAC is part of the apiserver arguments) If it is, then check for a clusterrolebinding that is granting the cluster-admin role to all authenticated users: kubectl get

I've looked over the documentation and browsed the source, but I can't seem to figure out how to do this. Is there any way to send query string parameters along with the path when implementing a Kubernetes liveness probe? The string I am sending, which looks something like this: /api/v1?q=... becomes URL-encoded and hits the server as: /api/v1%3fq=... As I have no such route on this particular API, I get a 404, and Kube reaps the pods after the allotted timeout. Is there any way to define query string parameters to liveness probes and/or trick the URI encoder to allow query string parameters?

Kubernetes' liveness and readiness prob for pods (deployment) can be configured with this initial delay ---- meaning the prob will start after this many sends after the container is up. If it is not specified, what is the default value? I can't seem to find it. The default value for periodSeconds is documented as 10 second. Thanks It seems that the default value of 0 is missing from the documentation . The health or readiness check algorithm works like this: Wait for initialDelaySeconds Perform readiness check and wait timeoutSeconds for a timeout If the number of continued successes is