Automatic merge from submit-queue
Enable kubelet eviction whenever inodes free is < 5% on GCE
This is a pre-req for enabling inodes based evictions in GKE.
Automatic merge from submit-queue
rkt: Update kube-up rkt version to v1.14.0
cc @kubernetes/sig-rktnetes
This should have been included in #31286 (whoops).
This is a bugfix that I propose for v1.4 inclusion.
Automatic merge from submit-queue
Enable Rescheduler by default
Rescheduler is stable - e2e test is passing constantly for >1week.
ref #29023
```release-note
Rescheduler which ensures that critical pods are always scheduled enabled by default in GCE.
```
Automatic merge from submit-queue
Pick a specific GCI version by default on GCE.
Prior to this change, a K8s branch (master as well as release) was
pinned to a GCI milestone. It would pick up the latest GCI release on
that milestone at the time of cluster creation. The rationale was the
K8s users would automatically get the bug fixes in newer versions of
GCI. However in practice, it makes the runtime environment
non-deterministic, and lack of continuous e2e tests mean we would run
into breakages sooner or later.
With this change, each K8s release will pick a specific version
of GCI by default (similar to how the Debian-based container-vm gets used).
Users can override the default version through KUBE_GCE_MASTER_IMAGE and
KUBE_GCE_NODE_IMAGE environment variables.
We expect the default GCI version will be updated relatively frequently stay
updated with newer GCI releases. We can also automate the process to
automatically bump the hard-coded GCI version in future.
@vishh @adityakali can you please review?
cc @kubernetes/goog-image FYI
Prior to this change, a K8s branch (master as well as release) was
pinned to a GCI milestone. It would pick up the latest GCI release on
that milestone at the time of cluster creation. The rationale was the
K8s users would automatically get the bug fixes in newer versions of
GCI. However in practice, it makes the runtime environment
non-deterministic, and lack of continuous e2e tests mean we would run
into breakages sooner or later.
With this change, each K8s release will pick a specific version
of GCI by default (similar to how the Debian-based container-vm gets used).
Users can override the default version through KUBE_GCE_MASTER_IMAGE and
KUBE_GCE_NODE_IMAGE environment variables.
We expect the default GCI version will be updated relatively frequently stay
updated with newer GCI releases. We can also automate the process to
automatically bump the hard-coded GCI version in future.
Automatic merge from submit-queue
keep docker0 with private cidr range
fixes: #31465
Keep docker0 when using kubenet on GCI. Assign 169.254.123.1/24 to docker0 to avoid cidr conflict.
Automatic merge from submit-queue
fix feature_gates salt plumbing
Fix salt plumbing for `--feature-gate` from `FEATURE_GATES kube env.
Was generating grains.conf and kube-env for master only. Verified it works now for gci and debian master/nodes.
cc @thockin @timstclair
Automatic merge from submit-queue
Build and push kube-dns for 1.4 release.
Fix#31355.
Following docker images had been uploaded:
gcr.io/google_containers/kubedns-amd64:1.7
gcr.io/google_containers/kubedns-arm:1.7
gcr.io/google_containers/kubedns-arm64:1.7
Build for ppc64le is disabled by default, and it failed to be built using:
`KUBE_BUILD_PPC64LE=y make release`
I'm still working on making the ppc64le build. Updates will be added following this thread.
@girishkalele @thockin
Automatic merge from submit-queue
gci: decouple from the built-in kubelet version
Prior to this change, configure.sh would:
(1) compare versions of built-in kubelet and downloaded kubelet, and
(2) bind-mount downloaded kubelet at /usr/bin/kubelet in case of
version mismatch
With this change, configure.sh:
(1) compares the two versions only on test clusters, and
(2) uses the actual file paths to start kubelet w/o any bind-mounting
To allow (2), this change also provides its own version of kubelet
systemd service file.
Effectively with this change we will always use the downloaded kubelet
binary along with its own systemd service file on non-test clusters. The
main advantage is this change does not rely on the kubelet being built in to
the OS image.
@dchen1107 @wonderfly can you please review
cc/ @kubernetes/goog-image FYI
Prior to this change, configure.sh would:
(1) compare versions of built-in kubelet and downloaded kubelet, and
(2) bind-mount downloaded kubelet at /usr/bin/kubelet in case of
version mismatch
With this change, configure.sh:
(1) compares the two versions only on test clusters, and
(2) uses the actual file paths to start kubelet w/o any bind-mounting
To allow (2), this change also provides its own version of kubelet
systemd service file.
Effectively with this change we will always use the downloaded kubelet
binary along with its own systemd service file on non-test clusters. The
main advantage is this change does not rely on the kubelet being built in to
the OS image.
Automatic merge from submit-queue
Add admission controller for default storage class.
The admission controller adds a default class to PVCs that do not require any
specific class. This way, users (=PVC authors) do not need to care about
storage classes, administrator can configure a default one and all these PVCs
that do not care about class will get the default one.
The marker of default class is annotation "volume.beta.kubernetes.io/storage-class", which must be set to "true" to work. All other values (or missing annotation) makes the class non-default.
Based on @thockin's code, added tests and made it not to reject a PVC when no class is marked as default.
.
@kubernetes/sig-storage
Automatic merge from submit-queue
Support for creation/removal of master replicas.
HA master: initial support for creation/removal of masters replicas by
kube-up/kube-down scripts for GCE on gci (other distributions, including debian, are not supported yet).
The admission controller adds a default class to PVCs that do not require any
specific class. This way, users (=PVC authors) do not need to care about
storage classes, administrator can configure a default one and all these PVCs
that do not care about class will get the default one.
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