Automatic merge from submit-queue
Build release tars using bazel
**What this PR does / why we need it**: builds equivalents of the various kubernetes release tarballs, solely using bazel.
For example, you can now do
```console
$ make bazel-release
$ hack/e2e.go -v -up -test -down
```
**Special notes for your reviewer**: this is currently dependent on 3b29803eb5, which I have yet to turn into a pull request, since I'm still trying to figure out if this is the best approach.
Basically, the issue comes up with the way we generate the various server docker image tarfiles and load them on nodes:
* we `md5sum` the binary being encapsulated (e.g. kube-proxy) and save that to `$binary.docker_tag` in the server tarball
* we then build the docker image and tag using that md5sum (e.g. `gcr.io/google_containers/kube-proxy:$MD5SUM`)
* we `docker save` this image, which embeds the full tag in the `$binary.tar` file.
* on cluster startup, we `docker load` these tarballs, which are loaded with the tag that we'd created at build time. the nodes then use the `$binary.docker_tag` file to find the right image.
With the current bazel `docker_build` rule, the tag isn't saved in the docker image tar, so the node is unable to find the image after `docker load`ing it.
My changes to the rule save the tag in the docker image tar, though I don't know if there are subtle issues with it. (Maybe we want to only tag when `--stamp` is given?)
Also, the docker images produced by bazel have the timestamp set to the unix epoch, which is not great for debugging. Might be another thing to change with a `--stamp`.
Long story short, we probably need to follow up with bazel folks on the best way to solve this problem.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 37468, 36546, 38713, 38902, 38614)
local-up-cluster additions
**What this PR does / why we need it**:
Changes to local-cluster-up: These include: 1) a simple additional help option. 2) additional error message to not being able to run `docker ps`. 3) fail faster when etcd is not found in path. Hopefully these make developing a bit more pleasant.
**Release note**:
```NONE
```
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
goflags must be after subcommand
**What this PR does / why we need it**:
if GOFLAGS is set when calling make, kubernetes will fail to build
as an example, I often have `GOFLAGS=-v` so I can have some idea of progress during compilation
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*:
no known issue
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 38277, 36361, 38452)
Add options for build container rsync optimization
KUBE_RSYNC_COMPRESS env var sets rsync compression level.
KUBE_RSYNC_GENERATED_TO_BUILD_CONTAINER env var disables rsyncing
generated files to build containers.
Why KUBE_RSYNC_COMPRESS is needed -- from rsync manual on `--compress` option (implied by non-zero `--compress-level`):
> Note that this option typically achieves better compression ratios than can be achieved by using a compressing remote shell or a compressing transport because it takes advantage of the implicit information in the matching data blocks that are not explicitly sent over the connection.
Use case for `KUBE_RSYNC_GENERATED_TO_BUILD_CONTAINER`: when you sometimes build stuff locally (e.g. `make WHAT=cmd/kubectl`) and sometimes do it on remote docker (`build-tools/run.sh make WHAT=cmd/hyperkube`), local builds touch generated files which causes them to be rsynced to the build data container, which may slow down the builds. Still, I'm not sure whether local->remote rsync of generated files is useful (e.g. someone may want to edit generated files for debugging purposes?), so I made not rsyncing these files an option instead of forcing such behavior.
Automatic merge from submit-queue (batch tested with PRs 37860, 38429, 38451, 36050, 38463)
[Part 2] Adding s390x cross-compilation support for gcr.io images in this repo
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**What this PR does / why we need it**: This PR enables s390x support to kube-dns , pause, addon-manager, etcd, hyperkube, kube-discovery etc. This PR also includes the changes due to which it can be cross compiled on x86 host architecture.
**Which issue this PR fixes#34328
**Special notes for your reviewer**: In existing file "build-tools/build-image/cross/Dockerfile" the repository mentioned for installing cross build tool chains for supporting architecture does not have a tool chain for s390x hence in my PR I am changing the repository so that it will be cross compiled for s390x.
**Release note**:
<!-- Steps to write your release note:
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```
Allows cross compilation of Kubernetes on x86 host for s390x also enables s390x support to kube-dns , pause, addon-manager, etcd, hyperkube, kube-discovery etc
```
Automatic merge from submit-queue (batch tested with PRs 38260, 32811, 28458, 33570, 37096)
Fix support for DNS in local-up-cluster.sh
[]()
The default appears to be gce now, so this tries to spawn a service in
gce... not the desired outcome for a local test setup.
We also need to sync the kubectl config in the script with the instructions for users, since if people don't test with DNS enabled, it bitrots (which this aims to fix).
To test manually, run something like
```
sudo KUBE_ENABLE_CLUSTER_DNS=true API_HOST_IP=0.0.0.0 ./hack/local-up-cluster.sh
```
The API_HOST_IP=0.0.0.0 is required, otherwise the master is not contactable by kubedns, and the dns pod will fail readychecking on the healthz pod.
Automatic merge from submit-queue (batch tested with PRs 38111, 38121)
Prevent SIGPIPE errors causing the version check line to fail
The way we use pipe in hack/lib/etcd.sh when processing the version command can lead to
141 failues on some systems. Using a prefix of tail can prevent this.
Fixes#38109
Automatic merge from submit-queue (batch tested with PRs 37094, 37663, 37442, 37808, 37826)
Fix the PATH that install-etcd.sh tells you to use
After you run install-etcd.sh, it tells you:
etcd v3.0.14 installed. To use:
export PATH=${PATH}:/home/danw/rh/go/src/k8s.io/kubernetes/third_party/etcd
which doesn't work if you have an older etcd installed in /usr/bin:
danw@w541:kubernetes (master)> PATH=${PATH}:/home/danw/rh/go/src/k8s.io/kubernetes/third_party/etcd etcd --version
etcd Version: 2.2.5
You need to put the local etcd dir first in PATH, not last.
Automatic merge from submit-queue (batch tested with PRs 37094, 37663, 37442, 37808, 37826)
Moved gobindata, refactored ReadOrDie refs
**What this PR does / why we need it**: Having gobindata inside of test/e2e/framework prevents external projects from importing the framework. Moving it out and managing refs fixes this problem.
**Which issue this PR fixes**: fixes#37007
Automatic merge from submit-queue (batch tested with PRs 37997, 37939, 37990, 36700, 37258)
--export flag belongs to kubectl get, not kubectl
**What this PR does / why we need it**:
When running the kubectl via symlink to hyperkube, the ``--export`` flag is not delegated to `kubectl get` but to `kubectl` only. Ending with unrecognized flag.
- Remaining spaghetti untangled
- Missed bazel update and a few hardcoded refs
- New instance of framework.ReadOrDie reference removed post rebase
- Resolve new clientset rebase
- Fixed e2e/generated BUILD dep
- A space
- Missed gobindata ref in golang.sh
Automatic merge from submit-queue
Build vendored copy of go-bindata and use that in go generate step
**What this PR does / why we need it**: as the title says, uses the vendored version of `go-bindata` rather than expecting developers to `go get` it (when building outside docker).
**Which issue this PR fixes**: fixes#34067, partially addresses #36655
**Special notes for your reviewer**: we still call `go generate` far too many times:
```console
~/.../src/k8s.io/kubernetes $ which go-bindata
~/.../src/k8s.io/kubernetes $ make
+++ [1116 17:35:28] Building the toolchain targets:
k8s.io/kubernetes/hack/cmd/teststale
k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [1116 17:35:29] Generating bindata:
test/e2e/framework/gobindata_util.go
+++ [1116 17:35:30] Building go targets for linux/amd64:
cmd/libs/go2idl/deepcopy-gen
+++ [1116 17:35:35] Building the toolchain targets:
k8s.io/kubernetes/hack/cmd/teststale
k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [1116 17:35:35] Generating bindata:
test/e2e/framework/gobindata_util.go
+++ [1116 17:35:36] Building go targets for linux/amd64:
cmd/libs/go2idl/defaulter-gen
+++ [1116 17:35:41] Building the toolchain targets:
k8s.io/kubernetes/hack/cmd/teststale
k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [1116 17:35:41] Generating bindata:
test/e2e/framework/gobindata_util.go
+++ [1116 17:35:42] Building go targets for linux/amd64:
cmd/libs/go2idl/conversion-gen
+++ [1116 17:35:47] Building the toolchain targets:
k8s.io/kubernetes/hack/cmd/teststale
k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [1116 17:35:47] Generating bindata:
test/e2e/framework/gobindata_util.go
+++ [1116 17:35:48] Building go targets for linux/amd64:
cmd/libs/go2idl/openapi-gen
+++ [1116 17:35:56] Building the toolchain targets:
k8s.io/kubernetes/hack/cmd/teststale
k8s.io/kubernetes/vendor/github.com/jteeuwen/go-bindata/go-bindata
+++ [1116 17:35:56] Generating bindata:
test/e2e/framework/gobindata_util.go
```
Fixing that is a separate effort, though.
cc @sebgoa @ZhangBanger
Jordan Liggitt