Change default kube-system DaemonSet tolerations #682
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
dghubble
force-pushed
the
use-explicit-daemonset-tolerations
branch
2 times, most recently
from
c621836
to
a2d4146
Compare
* Change kube-proxy, flannel, and calico-node DaemonSet tolerations to tolerate `node.kubernetes.io/not-ready` and `node-role.kubernetes.io/master` (i.e. controllers) explicitly, rather than tolerating all taints * kube-system DaemonSets will no longer tolerate custom node taints by default. Instead, custom node taints must be enumerated to opt-in to scheduling/executing the kube-system DaemonSets * Consider setting the daemonset_tolerations variable of terraform-render-bootstrap at a later date Background: Tolerating all taints ruled out use-cases where certain nodes might legitimately need to keep kube-proxy or CNI networking disabled Related: poseidon/terraform-render-bootstrap#179
dghubble
force-pushed
the
use-explicit-daemonset-tolerations
branch
from
a2d4146
to
bac5acb
Compare
dghubble
added a commit
that referenced
this pull request
Nov 14, 2020
* Add experimental `arch` variable to Fedora CoreOS AWS, accepting amd64 (default) or arm64 to support native arm64/aarch64 clusters or mixed/hybrid clusters with a worker pool of arm64 workers * Add `daemonset_tolerations` variable to cluster module (experimental) * Add `node_taints` variable to workers module * Requires flannel CNI and experimental Poseidon-built arm64 Fedora CoreOS AMIs (published to us-east-1, us-east-2, and us-west-1) WARN: * Our AMIs are experimental, may be removed at any time, and will be removed when Fedora CoreOS publishes official arm64 AMIs. Do NOT use in production Related: * #682
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
node.kubernetes.io/not-readyandnode-role.kubernetes.io/master(i.e. controllers) explicitly, rather than tolerating all taintsBackground: Tolerating all taints ruled out use-cases where certain nodes might legitimately need to keep kube-proxy or CNI networking disabled
Related: poseidon/terraform-render-bootstrap#179