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Code Issues

Change default kube-system DaemonSet tolerations 

* 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: https://github.com/poseidon/terraform-render-bootstrap/pull/179
This commit is contained in:
Dalton Hubble 2020-03-26 22:18:38 -07:00
parent 70bdc9ec94
commit bac5acb3bd
9 changed files with 11 additions and 8 deletions
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3
CHANGES.md
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@ -4,6 +4,9 @@ Notable changes between versions.
## Latest
* Change `kube-proxy` and `calico` or `flannel` to tolerate specific taints ([#682](https://github.com/poseidon/typhoon/pull/682))
* Tolerate master and not-ready taints, rather than tolerating all taints
## v1.18.0
* Kubernetes [v1.18.0](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.18.md#v1180)

2
aws/container-linux/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [format("%s.%s", var.cluster_name, var.dns_zone)]

2
aws/fedora-coreos/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [format("%s.%s", var.cluster_name, var.dns_zone)]

2
azure/container-linux/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [format("%s.%s", var.cluster_name, var.dns_zone)]

2
bare-metal/container-linux/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [var.k8s_domain_name]

2
bare-metal/fedora-coreos/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [var.k8s_domain_name]

2
digital-ocean/container-linux/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [format("%s.%s", var.cluster_name, var.dns_zone)]

2
google-cloud/container-linux/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [format("%s.%s", var.cluster_name, var.dns_zone)]

2
google-cloud/fedora-coreos/kubernetes/bootstrap.tf
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@ -1,6 +1,6 @@
# Kubernetes assets (kubeconfig, manifests)
module "bootstrap" {
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=cb170f802d09dcbe88b050257bc676e25d3c4282"
source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=42723d13a696ea63af8aacc227169395914ecb18"
cluster_name = var.cluster_name
api_servers = [format("%s.%s", var.cluster_name, var.dns_zone)]