Automatic merge from submit-queue
Remove Initializers from admission-control in kubernetes-master charm for pre-1.7
**What this PR does / why we need it**:
This fixes a problem with the kubernetes-master charm where kube-apiserver never comes up:
```
failed to initialize admission: Unknown admission plugin: Initializers
```
The Initializers plugin does not exist before Kubernetes 1.7. The charm needs to support 1.6 as well.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#47062
**Special notes for your reviewer**:
This fixes a problem introduced by https://github.com/kubernetes/kubernetes/pull/36721
**Release note**:
```release-note
Remove Initializers from admission-control in kubernetes-master charm for pre-1.7
```
This adds additional state guardsof the idle_status method, which will
prevent it from being run until a worker has joined the relationship.
Previous invocations may have some message artifacting, but will reach
eventual consistency once a worker has joined.
This prevents the polling loop from executing too soon, bloating the
installation time by bare-minimum an additional 10 minutes.
Automatic merge from submit-queue (batch tested with PRs 45070, 45821, 45732, 45494, 45789)
Fix lint errors in juju kubernetes master and e2e charms
**What this PR does / why we need it**: Fixes style error in the Juju charms
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```
Code style fixes in Juju charms
```
Automatic merge from submit-queue (batch tested with PRs 45283, 45289, 45248, 44295)
Remove offending code due to bad rebase
**What this PR does / why we need it**: Fix bug introduced by bad rebasing
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```
NONE
```
Automatic merge from submit-queue
README.md: Update outdated links
**What this PR does / why we need it**:
the PR aims to update some links.
Some links with "#" would not redirect to right point of pages.
Other links without "#" can work, but they are outdated. I change them by the way.
**Special notes for your reviewer**:
**Release note**:
```release-note
```
none
Automatic merge from submit-queue
Retry calls we report config changes quickly.
**What this PR does / why we need it**: In Juju deployments of Kubernetes the status of the charms is updated when a status-update is triggered periodically. As a result changes in config variables may take up to 10 minutes to be reflected on the charms status. See bug below.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/263
**Special notes for your reviewer**:
**Release note**:
```
Kubernetes clusters deployed with Juju pick up config changes faster.
```
Automatic merge from submit-queue (batch tested with PRs 41530, 44814, 43620, 41985)
Fixes juju kubernetes master: 1. Get certs from a dead leader. 2. Append tokens.
**What this PR does / why we need it**:
Fixes two issues with the Juju kubernetes master.
1. Grab certificates from a leader that is already removed.
2. Append (not truncate) auth tokens
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes#43563fixes#43519
**Special notes for your reviewer**:
**Release note**:
```
Recover certificates from leadership context in case all masters die in a Juju deployment
```
Automatic merge from submit-queue (batch tested with PRs 42432, 44628, 45101, 44921)
Use correct option name in the kubernetes-worker layer registry action
**What this PR does / why we need it**: It fixes#44920
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#44920
**Special notes for your reviewer**:
**Release note**:
```
Ensure kubernetes-worker juju layer registry action uses correct ingress controller option name
```
Automatic merge from submit-queue (batch tested with PRs 42740, 44980, 45039, 41627, 45044)
Update kubernetes-e2e charm to use snaps
**What this PR does / why we need it**:
This updates the kubernetes-e2e charm to use snaps instead of Juju resources for payload delivery.
The main advantage of this is that it decouples the charm from the e2e payload, allowing us to support multiple versions of Kubernetes with a single release of the charm.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
Update kubernetes-e2e charm to use snaps
```
The master-components started state triggers a daemon recycle. The guard
was to prevent the daemons from being cycled too often and interrupting
normal workflow. This additional state check is guarded against the etcd
connection string from changing, allowing the current behavior but
triggers a re-configure and recycle of the api-control plane when etcd
units are scaling up and down.
Automatic merge from submit-queue
Send dns details only after cdk-addons are configured
**What this PR does / why we need it**: This is a bugfix on the deployment of Kubernetes via Juju. See issue below.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#40386 and
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/262
**Special notes for your reviewer**:
**Release note**:
```
Fix KubeDNS issue in Juju deployments.
```
Fix the pause action with regard to the new behavior where
--delete-local-data=false by default. Historically --force was all that
was required, this flag has changed to be more descriptive of the
actions it's taking.
Automatic merge from submit-queue
Add namespace-{list, create, delete} actions to the kubernetes-master layer
**What this PR does / why we need it**:
This PR adds namespace-{list,create,delete} actions to the juju kubernetes-master layer.
**Which issue this PR fixes**: fixes#43712
**Special notes for your reviewer**:
Original PR https://github.com/juju-solutions/kubernetes/pull/109
**Release note**:
```
Add namespace-{list,create,delete} actions to the juju kubernetes-master layer
```
This patch sets the hostname to a unique identifier (the juju unit name)
during pre-deployment of the charm. This may not be a FQDN resolveable
hostname but will prevent hostname collision.
Automatic merge from submit-queue (batch tested with PRs 44722, 44704, 44681, 44494, 39732)
prevent installation of docker from upstream
**What this PR does / why we need it**: Disallows installation of upstream docker from PPA in the Juju kubernetes-worker charm.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
Disallows installation of upstream docker from PPA in the Juju kubernetes-worker charm.
```
Automatic merge from submit-queue
select one api endpoint at random when deploying kubernetes-core charm
**What this PR does / why we need it**: Fixes a bug in the kubernetes-worker Juju charm code that attempted to give kube-proxy more than one api endpoint.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**: https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/255
**Release note**:
```release-note
Fixes a bug in the kubernetes-worker Juju charm code that attempted to give kube-proxy more than one api endpoint.
```
Automatic merge from submit-queue
Fix ceph-secret type to kubernetes.io/rbd in kubernetes-master charm
**What this PR does / why we need it**:
This fixes the type of the ceph-secret secret that's created by the kubernetes-master charm.
Without the `kubernetes.io/rbd` type, automatic provisioning of PVCs doesn't work.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
Fix ceph-secret type to kubernetes.io/rbd in kubernetes-master charm
```
Automatic merge from submit-queue (batch tested with PRs 43000, 44500, 44457, 44553, 44267)
Add Kubernetes 1.6 support to Juju charms
**What this PR does / why we need it**:
This adds Kubernetes 1.6 support to Juju charms.
This includes some large architectural changes in order to support multiple versions of Kubernetes with a single release of the charms. There are a few bug fixes in here as well, for issues that we discovered during testing.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
Thanks to @marcoceppi, @ktsakalozos, @jacekn, @mbruzek, @tvansteenburgh for their work in this feature branch as well!
**Release note**:
```release-note
Add Kubernetes 1.6 support to Juju charms
Add metric collection to charms for autoscaling
Update kubernetes-e2e charm to fail when test suite fails
Update Juju charms to use snaps
Add registry action to the kubernetes-worker charm
Add support for kube-proxy cluster-cidr option to kubernetes-worker charm
Fix kubernetes-master charm starting services before TLS certs are saved
Fix kubernetes-worker charm failures in LXD
Fix stop hook failure on kubernetes-worker charm
Fix handling of juju kubernetes-worker.restart-needed state
Fix nagios checks in charms
```
