This `DeploymentSpec` struct is used internally; the ones used for
serialization do have a pointer and this text was most likely copied
from there and not corrected.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
This is useful for running a driver on a subset of all ready nodes:
- use e2enode.GetBoundedReadySchedulableNodes with a suitable
maximum number of nodes to determine how much nodes are available
for a test
- define pod anti-affinity in the PodTemplate:
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchLabels:
app.kubernetes.io/instance: xxxxxxx
topologyKey: kubernetes.io/hostname
- set the ReplicaSetSpec.Replicas value to the number of nodes
If the control plane emits anything at the time when the test runs, for example
"unable to sync kubernetes service", the test breaks because that additional
output is unexpected.
Pulling the CreateKubeConfig function from the expensive to build
test/utils/apiserver package had a considerable impact on the overall build
time because that package depends on a lot of other packages.
Because only that one function is needed by the framework, that extra build
time can be avoided by moving it into its own package.
The framework.AddCleanupAction API was a workaround for Ginkgo v1 not invoking
AfterEach callbacks after a test failure. Ginkgo v2 not only fixed that, but
also added a DeferCleanup API which can be used to run some code if (and only
if!) the corresponding setup code ran. In several cases that makes the test
cleanup simpler.
This covers multiple facets of the current framework and of Ginkgo:
- Ginkgo output is verbose and includes detailed progress
messages (BeforeEach/AfterEach tracing).
- Namespace creation.
- Order of callback invocation.
This runs etcd and an apiserver using it inside the test process. The caller
can either use the ClientSet or the config file. More options might get added
in the future.
Co-author: Antonio Ojea <antonio.ojea.garcia@gmail.com>
cpu.cfs_period_us is measured in microseconds in the kernel but
provided in time.Duration by the user, that change clarifies the code
to make this evident to the reader.
Also, the minimum value for that feature is 1ms and not 1μs, and this
change alters the validation to reject values smaller than 1ms.
When using By or some other Ginkgo output functions, Ginkgo v2 now adds a time
stamp at the end of the line that we need to ignore. Will become relevant when
testing more complete output.
For cleanup purposes the ginkgo.DeferCleanup is a better replacement for
f.AddAfterEach:
- the cleanup only gets executed when the corresponding setup code ran
and can use the same local variables
- the callback runs after the test and before the framework
deletes namespaces (as before)
- if one callback fails, the others still get executed
For the original purpose (https://github.com/kubernetes/kubernetes/pull/86177 "This is
very useful for custom gathering scripts.") it is now possible to use
ginkgo.AfterEach because it will always get executed. Just beware that its
callbacks run in first-in-first-out order.
In contrast to ginkgo.AfterEach, ginkgo.DeferCleanup runs the callback in
first-in-last-out order. Using it makes the following test code work as
expected:
f := framework.NewDefaultFramework("some test")
ginkgo.AfterEach(func() {
// do something with f.ClientSet
})
Previously, f.ClientSet was already set to nil by the framework's cleanup code.
