* ci: make waiting for nodes more robust
After initializing the cluster, a lot of things happen in parallel and
are potentially getting in each others' way: nodes are joining,
daemonsets are proliferating, the network is being set up. During this
period, it's not unusual that the Kubernetes API server is unavailable
for a short time, e.g. due to etcd loosing quorum or load balancing
changes.
This period of instability has the potential to affect all kubectl
commands negatively, leading to problems especially for tests, where
command failures often lead to test failures. On the other hand, we'd
expect everything to be quite stable after the initial dust settles.
Therefore, this commit changes how we wait after initializing a cluster.
Until we have a reasonable expectation of readiness, we ignore command
failures and wait for things to stabilize. The cluster is considered
stable once all configured nodes and all API servers report ready.
* Let JoinClient return fatal errors
* Mark disk for wiping if JoinClient or InitServer return errors
* Reboot system if bootstrapper detects an error
* Refactor joinClient start/stop implementation
* Fix joining nodes retrying kubeadm 3 times in all cases
* Write non-recoverable failures to syslog before rebooting
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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
The OpenStack credentials (username and password) can now be retrieved
from the "clouds.yaml" by the Constellation CLI and terraform code.
This simplifies the configuration for end-users.
* Use collision resistant name for Terraform e2e test
* Remove test suffix from Terraform provider examples
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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
Ephemeral local disks are discouraged on STACKIT.
Use volumes instead.
This sets an upper bound of 5GB on the boot disk.
If Constellation OS images ever grow beyond that, we will run into
problems.
* Fix potentially artifact naming in weekly tests
* Use e2e prefix for artifact naming in e2e-benchmark
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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
