This is necessary with recent version of Traefik, because
it won't pick up Ingress resources that don't have an
IngressClass. So let's add an IngressClass and make it
the default.
We won't always have a kubeconfig with a TLS cert in it.
Let's break down different methods to analyze kubeconfig
depending on whether there is a TLS cert or a token in it.
Instead of doing a local-exec to 'kubectl get nodes ... > stage2/externalips.X',
we use an external provisioner. And to decouple things, the external provisioner
depends on nodes being ready, and node readiness is implemented with a null
resource. That way we don't need to re-execute the whole 'wait for nodes; dump
node addresses' dance each time we re-run that configuration.
The biggest pain point was the installation of all
the userland tools; for most of them, we had hard-coded
the installation URLs. This is now fixed for most of them.
It is now possible to set the user login (instead of
having it hardcoded to "docker"). Also, various actions
have been broken out in separate functions to facilitate
future maintenance.
This is a new provisioning mechanism. Right now, it can
provision clusters on:
- Digital Ocean
- Linode
- Oracle Cloud
- Scaleway
Others should be relatively straightforward to add.
Check the README in the prepare-tf subdirectory for details.
In the long run I would love to automate spellchecking on
the slides, but there's a long way to go, with all the
custom lingo that we use... This is just the beginning of it,
on a few files.
On some Windows 10 installs, the jquery.js link doesn't work
properly (see #592). So I'm removing that symlink and linking
directly to jquery-1.11.3.min.js from the HTML page.
Thanks @hebronwatson for reporting this.
