It had been removed in upstream, but had been kept by mistake here.

For symmetry with systemd

We have the workaround for Salt's problems here, but we should still express
our intent.

I don't think it actually makes a difference based on how we're using it,
but this is now more of a precise change.

This may help Salt reload services correctly, although we still
need the script until Salt's bug with reloading services on systemd
is resolved.

Salt bug: https://github.com/saltstack/salt/issues/16778

Also work around problems with Salt & systemd services, in particular
that Salt doesn't issue a daemon-reload.

Automated cherry pick of #10562

Automated cherry pick of #10884 on upstream release 0.21

Automated cherry pick of #10877 on release 0.21

Change build/mark-new-version.sh to always create a backmerge branch

Update UI redirect to kube-system.

AWS: Some images require volume mounts on /dev/xvdX

Update node info description in node.md

Change config files to kube-system which were missed in the original PR

De-dup, cleanup, overhaul networking docs

that reverts the doc diff.

This changes mark-new-version to create a backmerge branch that will
additionally handle the revert of the doc diff that's now created for
every release.

Sidebar: I really wish I knew a good git visualizer for GitHub - this
thing is going to start creating some awesome Gordian knots of merges.
(Or more like little Omegas, since they basically just change
version/base.go.)

Fixes #10825

AWS: Note about instance types

Align example in the client package with the api.

Check whether all nodes are healthy in e2e framework

Remove use of v1beta3 from ES logging

Fix service shell test

Add additional loging to max_pods e2e test

Promote no-longer flaky tests to gce suite

Don't ignore containers restarting during tests