I'm running two Kubernetes clusters on GCE. One for production and one for staging. The instance prefix I use for production is `kubernetes` and for staging it's `staging-kubernetes`. This caused a problem when running `kube-up.sh` for production because when it tries to find all instances which match `kubernetes(-...)?` it finds both the production and staging instances. This probably results in multiple problems, but the most noticeable one for me was that I`NITIAL_ETCD_CLUSTER` was incorrect and so etcd wouldn't start up correctly so the api server doesn't start up correctly so nothing else starts up. I tested this manually and it seems to work for me, but I didn't write an automated test.
Automatic merge from submit-queue (batch tested with PRs 58104, 58492, 58491). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Optionally prevent metadata concealment firewall from being set
**What this PR does / why we need it**: GCP: allow a master to not include a metadata concealment firewall rule (if it's not running the metadata proxy).
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
GCP: allow a master to not include a metadata concealment firewall rule (if it's not running the metadata proxy).
```
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Reduce Metrics Server memory requirement
**What this PR does / why we need it**:
Reduces memory requirements of Metrics Server.
This was tested on GCE. On 16 - node cluster with 30 user pods per node, Metrics Server consumes ~60MB of memory. For larger clusters, the base value matters even less, and the memory utilization will be lower, therefore this change is safe.
**Release note**:
```release-note
Reduce Metrics Server memory requirement
```
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apps api is now stable, use it
**What this PR does / why we need it**: as of kubernetes 1.9, the apps api is stable. we should use v1 instead of v1beta2
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes # none
**Special notes for your reviewer**:
**Release note**:
```
NONE
```
basically just:
* move all manifests into the new gce/manifests dir
* move limit-range into gce/addons/limit-range
* move abac jsonl into gce/manifests. this is gross but we will
hopefully be able to delete this config soon. it only exists to support
a deprecated feature.
* fix build, release, deploy to look for everything in its new home
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Bump fluentd-gcp version
**What this PR does / why we need it**: Addresses issues parsing exceptions from logs
**Release note**:
```release-note
fluentd-gcp updated to version 2.0.14.
```
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cluster: remove support for cvm from gce kube-up
see #49213
```release-note
Remove deprecated ContainerVM support from GCE kube-up.
```
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remove providers which have been deleted
**What this PR does / why we need it**:
xref #49213
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```NONE
```
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Bump Metrics Server to version v0.2.1
**What this PR does / why we need it**:
Bumps Metrics Server to version v0.2.1, which exposes standard apiserver metrics via /metric endpoint.
**Release note**:
```release-note
Expose Metrics Server metrics via /metric endpoint.
```
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remove support for container-linux in gce kube-up
see #49213
```release-note
Remove deprecated container-linux support in gce kube-up.sh.
```
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added fluentd detect-exceptions plugin to fluentd-es-image for multiline logging
**What this PR does / why we need it**:
This PR adds proper multiline logging (java stacktraces for example) to fluentd-es docker image by adding the fluentd detect-exceptions plugin.
Plugin: https://github.com/GoogleCloudPlatform/fluent-plugin-detect-exceptions
Its also used in GCP and it also works outside of Kubernetes, so it should be safe to use it here too.
**Release note**:
```release-note
fluentd-es addon: multiline stacktraces are now grouped into one entry automatically
```
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Enable support for etcd3
**What this PR does / why we need it**: With this PR juju deployments of kubernetes can use both etcd2 and 3.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**: Lets not merge this immediately. Lets wait for next year.
**Release note**:
```NONE
```
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Updated Flexvolume setup mechanisms for COS instance image.
- If REMOUNT_VOLUME_PLUGIN_DIR is set to true, VOLUME_PLUGIN_DIR is remounted with `exec` option during cluster startup. This allows any writable location to be used as the plugin directory.
- New HostPath added to controller-manager deployment to enable access to volume plugin directory.
- Improved how the default directory is passed to master and node setup.
**What this PR does / why we need it**: Part of the fix for #57353
/release-note-none
/sig storage
/assign @saad-ali @roberthbailey
/cc @chakri-nelluri @wongma7
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removed deprecated libvirt-coreos kube-up/ from cluster
This kube-up hasn't been maintained for over a year and has been deprecated for > 6 months.
see #49213
@kubernetes/sig-cluster-lifecycle-pr-reviews
```release-note
Remove deprecated and unmaintained libvirt-coreos kube-up.sh.
```
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removed deprecated windows install script from cluster
Hasn't been touched in over a year.
see #49213
@kubernetes/sig-cluster-lifecycle-pr-reviews
```release-note
Remove deprecated and unmaintained windows installer.
```
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remove deprecated openstack heat
this directory hasn't been touched in a year.
see #49213
@kubernetes/sig-cluster-lifecycle-pr-reviews
```release-note
Remove deprecated and unmaintained openstack-heat kube-up.sh.
```
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Add GCE "Custom" folder
**What this PR does / why we need it**:
Allows creating clusters with image type custom
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
This will need to be cherrypicked back to the 1.9 branch
/assign @dchen1107 @yguo0905
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Bump fluentd-gcp version
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
fluentd-gcp updated to version 2.0.13.
```
- If REMOUNT_VOLUME_PLUGIN_DIR is set to true, VOLUME_PLUGIN_DIR is remounted with `exec` option during cluster startup. This allows any writable location to be used as the plugin directory.
- New HostPath added to controller-manager deployment to enable access to volume plugin directory.
- Improved how the default directory is passed to master and node setup.
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Add proxy_read_timeout flag to kubeapi_load_balancer charm.
**What this PR does / why we need it**: Add proxy_read_timeout flag to kubeapi_load_balancer charm.
**Release note**:
```release-note
Add proxy_read_timeout flag to kubeapi_load_balancer charm.
```
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Fix errors in Heapster deployment for google sink
**What this PR does / why we need it**:
Fixes a bug in Heapster deployment for google sink.
**Release note**:
```release-note
Fixes a bug in Heapster deployment for google sink.
```
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Bump metadata proxy and test versions
**What this PR does / why we need it**: Bump metadata proxy version to v0.1.7 (to pick up https://github.com/GoogleCloudPlatform/k8s-metadata-proxy/pull/13).
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
Bump metadata proxy version to v0.1.7 to pick up security fix.
```
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cluster/gce/gci: Support passing kube-scheduler policy config
**What this PR does / why we need it**:
This allows us to specify a customized scheduler policy configuration.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
I'm aware of the ConfigMap but passing a file is much simpler in our case.
This PR is low risk, we will want to cherry pick this into 1.9.
**Release note**:
```release-note
None
```
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Update defaultbackend image to 1.4 and deployment apiVersion to apps/v1
**What this PR does / why we need it**:
Update defaultbackend image to 1.4 and deployment apiVersion to apps/v1
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```Update defaultbackend image to 1.4 and deployment apiVersion to apps/v1
```
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Fix a broken link in the fluentd-elasticsearch addon README
**What this PR does / why we need it**:
Fix a broken link in the fluentd-elasticsearch addon README.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 57492, 57530). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Changing ingress from manually scaling rc to a daemon set.
**What this PR does / why we need it**:
Quality of life fix. We used to set an RC to run the nginx ingress and then scale it in the charm as workers were added. Now we just use a daemon set to make sure it is running everywhere. Using application-specific names and roles so multiple applications can have different ingress settings.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/367
**Special notes for your reviewer**:
**Release note**:
```release-note
CDK nginx ingress is now handled via a daemon set.
```
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Honor make variable OUT_DIR in hyperkube Makefile
Needed to ensure the split of `make cross-in-a-container` and `make package-tarballs` honors the use of `OUT_DIR`.
In the new and upcoming containerized (GCB) release builds, multiple `cross-in-a-container` targets are run into their own `_output ($OUT_DIR)` directories and a second pass runs multiple `package-tarballs`.
This won't work unless we honor `$OUT_DIR` here.
See also #23839
cc @javier-b-perez
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Add 'exec' in all saltbase manifests using '/bin/sh -c'.
Right now, if docker sends SIGTERM, /bin/sh doesn't pass it to
underlying process, which breaks graceful process shutdown.
Changing '/bin/sh -c CMD > /var/log/FILE.log' pattern to '/bin/sh -c
exec CMD > /var/log/FILE.log' still allows to redirect output to log
file, but also passes all signals to CMD process.
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#57707, Fixes#45959
**Special notes for your reviewer**:
**Release note**:
```release-note
Fix to allow kubernetes components to react to SIGTERM signal and shutdown gracefully.
```
Right now, if docker sends SIGTERM, /bin/sh doesn't pass it to
underlying process, which breaks graceful process shutdown.
Changing '/bin/sh -c CMD > /var/log/FILE.log' pattern to '/bin/sh -c
exec CMD > /var/log/FILE.log' still allows to redirect output to log
file, but also passes all signals to CMD process.
Automatic merge from submit-queue (batch tested with PRs 57670, 56888). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Limit number of pods listed as master liveness check.
**What this PR does / why we need it**:
Another step in making #55686 less likely.
**Release note**:
```release-note
NONE
```
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Update CoreDNS version and Corefile in kubeadm
**What this PR does / why we need it**:
We bumped CoreDNS version to 1.0.0 (#56802) and added CoreDNS as an optional addon in kube-up (#55728), but something wrt log was missed. The log option of CoreDNS was changed since 1.0.0. We should update the Corefile to reflect the change.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes https://github.com/kubernetes/kubernetes/issues/57277
ref: https://github.com/coredns/coredns/issues/1218https://github.com/coredns/coredns/pull/1221
**Special notes for your reviewer**:
/cc @luxas @rajansandeep
cc @fturib @johnbelamaric
**Release note**:
```release-note
NONE
```
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Reduce CPU request of Dashboard addon
**What this PR does / why we need it**:
This PR reduces request of Dashboard addon to free up cluster resources for user pods and other addons. Dashboard is bound on memory and under-utilizes CPU
**Release note**:
```release-note
NONE
```
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Add NODE_LOCAL_SSDS_EXT to config-test
**What this PR does / why we need it**:
Add NODE_LOCAL_SSDS_EXT to config-test so we can specify it for CI.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#57468
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Evicted pods should not be marked as failing since they respawn
**What this PR does / why we need it**: Juju deployments should not report evicted pods as failing.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```NONE
```
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Reduce CPU and memory requests for Metrics Server Nanny
**What this PR does / why we need it**:
Metrics Server Nanny is a sidecar container that performs small computations every 5 minutes to scale Metrics Server resource requirements when cluster size changes. This change reduces the CPU and memory requests to free up unused resource.
**Release note**:
```release-note
Free up CPU and memory requested but unused by Metrics Server Pod Nanny.
```
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Build etcd image for 3.1.11 version
This is fixing some bugs in HA setups.
It should be cherrypicked to 1.9 branch.
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Use old dns-ip mechanism with older cdk-addons.
**What this PR does / why we need it**: Use old dns-ip mechanism with older cdk-addons.
**Release note**:
```release-note
Use old dns-ip mechanism with older cdk-addons.
```
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Pointing juju charms to 1.9
**What this PR does / why we need it**: Point juju charms to 1.9 k8s release
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```NONE
```
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Add --retry-connrefused to all curl invocations if available.
By default 'Connection refused' error is not a transient error
and is not retried.
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
Retry 'connection refused' errors when setting up clusters on GCE.
```
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Minor lint fix on Juju master
**What this PR does / why we need it**: Fix lint error in master
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```NONE
```
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Add comment to gce config files advising to use non-empty scopes
**What this PR does / why we need it**: Add a comment in gce config files advising to use non-empty scopes, because kubelet requires a service account to initialize.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Wait for kubedns to be ready when collecting the cluster IP.
**What this PR does / why we need it**: Wait for kubedns to be ready when collecting the cluster IP.
**Release note**:
```release-note
Wait for kubedns to be ready when collecting the cluster IP.
```
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Use k8s.gcr.io vanity domain for container images
Related issue: https://github.com/kubernetes/release/issues/281
```release-note
Use "k8s.gcr.io" for container images rather than "gcr.io/google_containers". This is just a redirect, for now, so should not impact anyone materially.
Documentation and tools should all convert to the new name. Users should take note of this in case they see this new name in the system.
```
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Fix lint errors on Juju LB
**What this PR does / why we need it**: This lint fixes block the build of the juju charms.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**:
**Release note**:
```NONE
```
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Fix Heapster and Metrics Server configuration to enable overriding resource requirements.
**What this PR does / why we need it**:
Configure resources for Heapster and Metrics Servier using Component Config. This will enable overriding default resource requirements for these components.
**Release note**:
```release-note
Fix Heapster configuration and Metrics Server configuration to enable overriding default resource requirements.
```
Automatic merge from submit-queue (batch tested with PRs 56386, 57204, 55692, 57107, 57177). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
GCE: bump COS image version to cos-stable-63-10032-71-0
```release-note
GCE: bump COS image version to cos-stable-63-10032-71-0
```
Automatic merge from submit-queue (batch tested with PRs 56386, 57204, 55692, 57107, 57177). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
don't use gnu cp features in building etcd image
**What this PR does / why we need it**:
> cp: illegal option -- t
use gnu-cp to copy files
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#56383
**Special notes for your reviewer**:
/assign @ixdy @mkumatag
**Release note**:
```release-note
None
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Use an s390x default-http-backend
This needs to be refactored to eventually say all non x86 architectures place a -arch() in the image name to support ppc64el, arm, etc.
Most all gcr.io/google_containers have -arch() image names.
**What this PR does / why we need it**:
Adds s390x images for when deploying to z system mainframes for default-http-backend image
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/455
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 57122, 57142, 57016, 56927, 56678). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Bump fluentd-gcp version
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**:
**Release note**:
```release-note
fluentd-gcp updated to version 2.0.11.
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Schedule Calico components even on tainted nodes
**What this PR does / why we need it**:
Fixes https://github.com/kubernetes/kubernetes/issues/57120
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
calico-node addon tolerates all NoExecute and NoSchedule taints by default.
```
@dnardo
Automatic merge from submit-queue (batch tested with PRs 56676, 57050, 54881, 56822, 57113). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
make kube-dns addon optional
**What this PR does / why we need it**: Makes the kube-dns addon optional so that users can deploy their own DNS solution.
**Release note**:
```release-note
Makes the kube-dns addon optional so that users can deploy their own DNS solution.
```
Automatic merge from submit-queue (batch tested with PRs 56858, 57040, 56979, 57051, 57052). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Update debian setup script to match GCI.
Even though this file is deprecated in 1.8 and 1.9, add this for consistency and this will also be cherry picked back to 1.7
Automatic merge from submit-queue (batch tested with PRs 56858, 57040, 56979, 57051, 57052). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
enabling log rotate for api logs in nginx
**What this PR does / why we need it**:
Prevent the load balancer from filling the disk with logs from the api server
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/449
**Special notes for your reviewer**:
**Release note**:
```release-note
Enabled log rotation for load balancer's api logs to prevent running out of disk space.
```
Robert Bailey