We now have better explanations on labels and selectors.
The kubectl run section was getting very long, so now
it is different parts: kubectl run basics; how to create
other resources like batch jobs; first contact with
labels and annotations; and showing the limitations
of kubectl logs.
In Kubernetes 1.18, `kubectl run` no longer creates
a Deployment, and cannot create Jobs or CronJobs
anymore. It only creates Pods. Since we were using
`kubectl run` to create our first Deployment, I've
changed the materials to explain that change, and
explain how the behavior differs between 1.17- and
1.18+, since I expect that people will deal with
a mix of both scenarios for a while (at least a
year).
Many improvements. QR code, fixed page size, better
use of page estate, etc.
Also pdfkit should kind of work now (not quite using
the full page size, but at least it's not utterly
broken like before).
This script needs:
- a list of domains managed by GANDI LiveDNS
- a list of IP addresses of clusters (like in tags/*/ips.txt)
It will replace the current configuration for these
domains so that they point to the clusters.
The apex of each domain and a wildcard entry will
have round-robin records pointing to all the nodes
of the cluster.
In addition, there will be records node[1234...]
pointing to each individual node.
Instead of upgrading from 1.16 to <latest> we upgrade from 1.15
to 1.16, because upgrading from <latest-1> is a special case and
it is better to show the general case.
Also, the script that sets up admin clusters now has some retry
logic to accommodate hiccups in pssh or in the cloud provider.
- Kubernetes binaries installed for ops labs bumped up to 1.17.2
- Composed-based control plane bumped up to 1.17.2
- kuberouter now uses apps/v1 DaemonSet (compatible with 1.16+)
- disable containerd (cosmetic)
