* Remove krew installation support
Krew is fundamentally to install kubectl plugins, which are eminently a
client side things.
It's also not difficult to install on a client machine.
* Remove krew cleanup
This has been deprecated for a long time, time to pull the plug.
We leave an assert for one release to have a straightforward failure if
some users were still using the variable.
Since 'none' can be, for instance, a manual calico deployment, don't
check whether there is enough ip for pods on a node, because the plugin
can use another mechanism than the podCIDR to allocate IPs.
When the etcd group is not specified we assume it's kube_control_plane.
In that case, etcd still can't be even, so instead of only checking the
etcd group we need to default to kube_control_plane
ansible-lint and yamllint are run as pre-commit hooks, which are
installed by pre-commit directly. So there is no need to put them in
tests/requirements.txt.
So remove them and make it leaner.
Upstream calico isn't doing that, and:
- this can cause throttling
- the cpu needed by calico is very cluster / workload dependent
- missing cpu limits will not starve other pods (unlike missing memory
requests), because the kernel scheduler will still gives priority to
other process in pods not exceeding their requests
Currently, versions in README.md need to be manually updated, and we
check it's done with a bash script.
Add a small utility playbook to add versions in README.md from their
actual default values, automatically.
This is done in pre-commit, and replace the scripted check ; instead it
will autofix the README.md, and fails in CI if needed.
We switch markdownlint behind the local hooks to gave it the opportunity
to catch a problem with the rendering.
Since e8ee42280 (CI: remove deletion tasks of 'packet' VMs, 2024-09-13),
our tests appears to not be flakey anymore.
The current retry slow down the testing feedback on pull request.
Since it's not needed anymore, don't retry and fail fast.
This is handy when some component releases is buggy (missing file at the
download links) to not block everything else.
Move the filtering up the stack so we don't have to do it multiples
times.
Gvisor releases, besides only being tags, have some particularities:
- they are of the form yyyymmdd.p -> this get interpreted as a yaml
float, so we need to explicitely convert to string to make it work.
- there is no semver-like attached to the version numbers, but the API
(= OCI container runtime interface) is expected to be stable (see
linked discussion)
- some older tags don't have hashs for some archs
Link: https://groups.google.com/g/gvisor-users/c/SxMeHt0Yb6Y/m/Xtv7seULCAAJ
Gvisor is the only one of our deployed components which use tags instead
of proper releases. So the tags scraping support will, for now, cater to
gvisor particularities, notably in the tag name format and the fact that
some older releases don't have the same URL scheme.
Containerd use the same repository for releases of it's gRPC API (which
we are not interested in).
Conveniently, those releases have tags which are not valid version
number (being prefixed with 'api/').
This could also be potentially useful for similar cases.
The risk of missing releases because of this are low, since it would
require that a project issue a new release with an invalid format, then
switch back to the previous format (or we miss the fact it's not
updating for a long period of time).
The Github graphQL API needs IDs for querying a variable array of
repository.
Use a dict for components instead of an array of url and record the
corresponding node ID for each component (there are duplicates because
some binaries are provided by the same project/repository).
This avoids spurious failure with 'localhost'.
It should also be more correct the inventory contains uncached hosts
which are not in `k8s_cluster` and therefore should not be Kubespray
business.
(We still use hostvars for uncached hosts, because it's easier to select
on 'ansible_default_ipv4' that way and does not change the end result)
We use a lot of facts where variables are enough, and format too early,
which prevent reusing the variables in different contexts.
- Moves set_fact variables to the vars directory, remove unnecessary
intermediate variables, and render them at usage sites to only do logic
on native Ansible/Jinja lists.
- Use defaults/ rather than default filters for several variables.
There is no test with IDEMPOT_CHECK=true since commit 7b78e6872 (disable
idempotency tests (#1872), 2017-10-26)
Remove the related infra from our CI scripts.
This display in a readable (by humans) way the result of most tasks, and
should be way more readable that what we have now, which is frequently a
bunch of unreadable json.
+ some small fixes (using delegated_to instead of when
<control_plane_host>)
- special casing should be in Kubespray, not in the test. It makes no
sense to do something in tests which won't be done in actual usage.
- We don't actually test CoreOS at all in the CI.
This is a followup to 2ba28a338 (Revert "Wait for available API token in
a new namespace (#7045)", 2024-10-25).
While checking for the serviceaccount token is not effective, there is
still a race when creating a Pod directly, because the ServiceAccount
itself might not be created yet.
More details at https://github.com/kubernetes/kubernetes/issues/66689.
This cause very frequent flakes in our CI with spurious failures.
Use a Deployment instead ; it will takes cares of creating the Pods and
retrying ; it also let us use kubectl rollout status instead of manually
checking for the pods.
To reproduce this commit run in bash:
for file in $(ls tests/files/)
do
if ! grep -Rq ${file%.*} .gitlab.ci; then
rm tests/files/${file}
fi
done
This also means that our CI matrix was not accurate.
This is needed for shutdown ordering: while at startup, it's not a
problem that containerd start before dbus (the dbus socket already
exists) it needs to shutdown before dbus to do its cleanup (asking
systemd via dbus to cleanup cgroups).
This is expected to be used in the command module this way:
command:
cmd: "{{ kubectl_apply_stdin }}"
stdin: <... rendered manifests > -> using the 'template' lookup plugin
in most cases.
The advantages over the kube plugin module integrated in kubespray
(which this should replace eventually):
- way easier to modify to take advantage of new features (server-side
apply for instance)
- no need for a separate template tasks + checking the result (which can
introduce problem if the first playbook runs encounters an error).
Those files haven't been touched in roughly 5 years, and pip install on
Kubespray errors out.
The 'Requires:' are outdated, which suggests that no one is using this.
8ff4ad2d8 (preinstall: simplify OS packages selection, 2024-11-04)
removed all usages of ansible.utils.validate (not that many), so the
dependencies is no longer necessary.
config_path was introduced in containerd 1.5.0, and registry.mirrors is
deprecated.
There is no reason to keep the old alternative, so just always use
config_path, and consequently remove the option.
Our README is currently pretty cluttered:
- Part of the README duplicates docs/getting_started/getting-started.md
-> Remove duplicates and extract useful info into the getting-started.md
- General info on Ansible environment troubleshooting
-> remove most of it as it's not specific to Kubespray, move to
docs/ansible/ansible.md
-> split inventory-related stuff of ansible.md into it's own file. This
should host documentation on how to manages Kubespray inventories in the
future.
ansible.md:
- remove the list of "Unused" variables, as:
1. It's not accurate
2. What matters is where users should put their variables
contrib/dind use inventory_builder, which is removed. It overlaps with
the function of kind (Kubernetes in Docker) and has not see change
(apart from linting driven ones) for a long time.
It also does not seem to work (provisioning playbook crash).
This only really help with the easiest part of building your inventory
(listing the hosts) as you still need to edit your groups vars and
similar.
The opaqueness of the script does not really help our users to
understand their own inventory.
Furthermore, there is not really a reason that something which is common
to all the Ansible ecosystem should be done in a special way for
Kubespray.
When using
dns_upstream_forward_extra_opts:
prefer_udp: "" # the option as no value so use empty string to just
# put the key
This is rendered in the dns configmap as ($ for end-of-line)
...
prefer_udp $
...
Note the trailing space.
This triggers https://github.com/kubernetes/kubernetes/issues/36222,
which makes the configmap hardly readable when editing them manually or
simply putting them in a yaml file for inspection.
Trim the concatenation of option + value to get rid of any trailing
space.
We use shell scripts and conf files in some roles (notably, certificates
provisioning), so we need to include them in order for the collection to
work when using the configurations depending on those roles.
* kubeadm: do not ignore preflight errors blindly
The "ignoring all errors" seems to date back to the inception of the
kubeadm support (it was --skip-preflight-check before).
This can mask real errors and prevent users from seeing them.
Do not ignore any errors by default and make the set of ignored errors
configurable.
* download/kubeadm: remove redundant task
The mode is already set by the previous `copy` task.
* Validate kubeadm configs
This should help to fail early when we have invalid kubeadm configs (from
a kubespray bug or a misconfiguration).
* kubeadm-upgrade: remove unnecessary bool cast
* Convert kubeadm join discovery timeout to v1beta4 config
* CI: Ignore kubeadm:Mem errors on some setup.
Max Gautier