Automatic merge from submit-queue
bazel: add a config setting to control embedding kubernetes-src.tar.gz
**What this PR does / why we need it**: currently a change anywhere in the tree will cause `kubernetes-src.tar.gz` to need to be regenerated, and thus also the server and node tarballs. All of these operations are slow, so for the sake of developer productivity, only include `kubernetes-src.tar.gz` when we need it (e.g. if we were doing a real release).
I don't have metrics on how much of an effect this has, but I expect it should help incremental builds, especially those that don't affect any node/server targets.
To embed the srcs tarball with this change, you'd run
```console
bazel build //build/release-tars --define EMBED_LICENSE_TARGETS=true
```
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 39446, 40023, 36853)
Add SIGCHLD handler to pause container
**What this PR does / why we need it**: This allows pause to reap orphaned zombies in a shared PID namespace. (#1615)
**Special notes for your reviewer**: I plan to discuss this with SIG Node to ensure compatibility with future runtimes.
**Release note**: This will have no effect until shared PID namespace is enabled, so recommend release-note-none.
This allows pause to reap zombies in the upcoming Shared PID namespace
(#1615). Uses the better defined sigaction() instead of signal() for all
signals both for consistency (SIGCHLD handler avoids SA_RESTART) and to
avoid the implicit signal()->sigaction() translation of various libc
versions.
Also makes warnings errors and includes a tool to make orphaned zombies
for manual testing.
Automatic merge from submit-queue
Remove all MAINTAINER statements in the codebase as they are deprecated
**What this PR does / why we need it**:
ref: https://github.com/docker/docker/pull/25466
**Release note**:
```release-note
Remove all MAINTAINER statements in Dockerfiles in the codebase as they are deprecated by docker
```
@ixdy @thockin (who else should be notified?)
Automatic merge from submit-queue
create kuberentes-discovery image
Creates an image for `kubernetes-discovery` since this is the API registration, aggregation, and proxy image.
This update includes significant refactoring. It moves almost all of the
logic into bash scripts, modeled after the `gci` cluster scripts.
The primary differences between the two are the following:
1. Use of the `/opt/kubernetes` directory over `/home/kubernetes`
2. Support for rkt as a runtime
3. No use of logrotate
4. No use of `/etc/default/`
5. No logic related to noexec mounts or gci-specific firewall-stuff
from etcd.sh split the start process into validate fucntion + start function so that the validate piece can be reused elsewhere. the up-cluster script has been changed to remove duplicate docker logic to the one used in buid-tools/common.sh and the validate etcd function is now used here.
moved docker daemon check function to util.sh and made function name changes and upstream changes.
Automatic merge from submit-queue
[Federation][init-11.2] use USE_KUBEFED env var to choose bw old and new federation deployment
This is continuation of #35961
USE_KUBEFED variable is used for deploying federation control plane. if not defined, federation will be brought up using old method i.e scripts.
Have verified that federation comes up using the old method, using following steps
```
$ export FEDERATION=true
$ export E2E_ZONES="asia-east1-c"
$ export FEDERATION_PUSH_REPO_BASE=gcr.io/<my-project>
$ KUBE_RELEASE_RUN_TESTS=n KUBE_FASTBUILD=true go run hack/e2e.go -v -build
$ build-tools/push-federation-images.sh
$ go run hack/e2e.go -v --up
```
Should merge #35961 before this PR
@madhusudancs
Automatic merge from submit-queue
Migrated fluentd addon to daemon set
fix#23224
supersedes #23306
``` release-note
Migrated fluentd addon to daemon set
```
This allows pause to reap zombies in the upcoming Shared PID namespace
(#1615). Uses the better defined sigaction() instead of signal() for all
signals both for consistency (SIGCHLD handler avoids SA_RESTART) and to
avoid the implicit signal()->sigaction() translation of various libc
versions.
Also makes warnings errors and includes a tool to make orphaned zombies
for manual testing.
Kubernetes Submit Queue