newbie here . I am trying to automate the way to get the nodes that are ready using the following script:
until kubectl get nodes | grep -m 2 "Ready"; do sleep 1 ; done
Is there a better way to do this, specifically i am looking for a way to do this without having to specify the node number?
To get the names of all Ready nodes, use
$ kubectl get nodes -o json | jq -r '.items[] | select(.status.conditions[].type=="Ready") | .metadata.name '
master-0
node-1
node-3
node-xBasing on the official documentation
You can check your ready nodes by using this command:
JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}' \
&& kubectl get nodes -o jsonpath="$JSONPATH" | grep "Ready=True"You don't need to specify number of nodes in your command, just use it like this:
until kubectl get nodes | grep -i "Ready"; do sleep 1 ; done