Automatic merge from submit-queue
Node Conformance & E2E: Get node name from node object.
This PR changes the node e2e test framework to get node name from apiserver instead of test flags.
When a user tried out the node conformance test, he found that node conformance test will not work properly if kubelet is started with `hostname-override`.
The reason is that node conformance test is using [the default node name - `os.Hostname`](https://github.com/kubernetes/kubernetes/blob/master/test/e2e_node/e2e_node_suite_test.go#L124), which may be different from `hostname-override`. This will cause test pods not scheduled, and eventually test timeout.
We can expose a flag from node conformance test, and let user set node name themselves if they are using `hostname-override` on kubelet. However, let the framework automatically detect it from apiserver is more user friendly.
/cc @kubernetes/sig-node
This PR 1) only changes node e2e test framework; 2) fixes a problem in node conformance test which is a 1.5 feature. @saad-ali Can we have this in 1.5?
Automatic merge from submit-queue
Node Conformance Test: Containerize the node e2e test
For #30122, #30174.
Based on #32427, #32454.
**Please only review the last 3 commits.**
This PR packages the node e2e test into a docker image:
- 1st commit: Add `NodeConformance` flag in the node e2e framework to avoid starting kubelet and collecting system logs. We do this because:
- There are all kinds of ways to manage kubelet and system logs, for different situation we need to mount different things into the container, run different commands. It is hard and unnecessary to handle the complexity inside the test suite.
- 2nd commit: Remove all `sudo` in the test container. We do this because:
- In most container, there is no `sudo` command, and there is no need to use `sudo` inside the container.
- It introduces some complexity to use `sudo` inside the test. (https://github.com/kubernetes/kubernetes/issues/29211, https://github.com/kubernetes/kubernetes/issues/26748) In fact we just need to run the test suite with `sudo`.
- 3rd commit: Package the test into a docker container with corresponding `Makefile` and `Dockerfile`. We also added a `run_test.sh` script to start kubelet and run the test container. The script is only for demonstration purpose and we'll also use the script in our node e2e framework. In the future, we should update the script to start kubelet in production way (maybe with `systemd` or `supervisord`).
@dchen1107 @vishh
/cc @kubernetes/sig-node @kubernetes/sig-testing
**Release note**:
<!-- Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access)
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`.
-->
``` release-note
Release alpha version node test container gcr.io/google_containers/node-test-ARCH:0.1 for users to verify their node setup.
```
Automatic merge from submit-queue
[Kubelet] Use the custom mounter script for Nfs and Glusterfs only
This patch reduces the scope for the containerized mounter to NFS and GlusterFS on GCE + GCI clusters
This patch also enabled the containerized mounter on GCI nodes
Shepherding multiple PRs through the submit queue is painful. Hence I combined them into this PR. Please review each commit individually.
cc @jingxu97 @saad-ali
https://github.com/kubernetes/kubernetes/pull/35652 has also been reverted as part of this PR
Automatic merge from submit-queue
Plumb --feature-gates from TEST_ARGS to components in node e2e tests
This means you can set `TEST_ARGS` on the command line, in a `.properties` config for a Jenkins job, etc, to toggle gated features. For example:
`TEST_ARGS='--feature-gates=DynamicKubeletConfig=true'`
/cc @vishh @jlowdermilk
Automatic merge from submit-queue
Node E2E: Fix wrong permission bit for log file.
When creating log for logs from journald, we use `0755` which is weird to me.
This PR changes it to `0666`.
This gives the node e2e test binary a --feature-gates flag that populates a
FeatureGates field on the test context. The value of this field is forwarded
to the kubelet's --feature-gates flag and is also used to populate the global
DefaultFeatureGate object so that statically-linked components see the same
feature gate settings as provided via the flag.
This means that you can set feature gates via the TEST_ARGS environment
variable when running node e2e tests. For example:
TEST_ARGS='--feature-gates=DynamicKubeletConfig=true'
