vagrant status shows only first 2 nodes about kubernetes-vagrant-coreos-cluster

[janroos]

To persist variables, I am using it like this:
echo NUM_INSTANCES=1 MASTER_MEM=1024 MASTER_CPUS=2 NODE_MEM=2048 NODE_CPUS=2 vagrant "$@" > v
chmod +x v
./v up

[pires]

This happens because when one uses environment variable NUM_INSTANCES to set the number of minions to spawn, it actually doesn't get persisted anywhere where Vagrantfile can read it and falls back to the default 2.

[pires]

Please do note that if you were using non default settings to startup your
cluster you must also use those exact settings when invoking
vagrant {up,ssh,destroy} to communicate with any of the nodes in the cluster as otherwise
things may not behave as you'd expect.

So, if you ran NUM_INSTANCES=4 vagrant up you'll need to NUM_INSTANCES=4 vagrant status in order to show all the nodes. This is not optimal, but right now it's what works.

[pires]

This same issue applies for all environment variables that we set but are not reused during cluster lifecycle. We should find a way to write-and-read this info from a persistent media, i.e. a file.

[pires]

Interesting @janroos. Thanks for sharing. But I would like something like a trigger on the Vagrantfile that would read values from a file. Such values would only be preceded by environment variables previously set.