Commit Graph

65 Commits

Author SHA1 Message Date
Dalton Hubble 99a6d5478b Disable Kubelet read-only port 10255
* We can finally disable the Kubelet read-only port 10255!
* Journey: https://github.com/poseidon/typhoon/issues/322#issuecomment-431073073
2018-10-18 21:14:14 -07:00
Dalton Hubble d55bfd5589 Fix CoreDNS AntiAffinity spec to prefer spreading replicas
* Pods were still being scheduled at random due to a typo
2018-10-17 22:19:57 -07:00
Dalton Hubble 9b6113a058 Update Kubernetes from v1.11.3 to v1.12.1
* Mount an empty dir for the controller-manager to work around
https://github.com/kubernetes/kubernetes/issues/68973
* Update coreos/pod-checkpointer to strip affinity from
checkpointed pod manifests. Kubernetes v1.12.0-rc.1 introduced
a default affinity that appears on checkpointed manifests; but
it prevented scheduling and checkpointed pods should not have an
affinity, they're run directly by the Kubelet on the local node
* https://github.com/kubernetes-incubator/bootkube/issues/1001
* https://github.com/kubernetes/kubernetes/pull/68173
2018-10-16 20:28:13 -07:00
Dalton Hubble 5eb4078d68 Add docker/default seccomp to control plane and addons
* Annotate pods, deployments, and daemonsets to start containers
with the Docker runtime's default seccomp profile
* Overrides Kubernetes default behavior which started containers
with seccomp=unconfined
* https://docs.docker.com/engine/security/seccomp/#pass-a-profile-for-a-container
2018-10-16 20:07:29 -07:00
Dalton Hubble 2e89e161e9 Remove Azure admin_password (disabled) now that its optional
* Requires terraform-provider-azurerm v1.16.0 or higher
https://github.com/terraform-providers/terraform-provider-azurerm/pull/1958
2018-10-13 22:40:58 -07:00
Dalton Hubble 55bb4dfba6 Raise CoreDNS replica count to 2 or more
* Run at least two replicas of CoreDNS to better support
rolling updates (previously, kube-dns had a pod nanny)
* On multi-master clusters, set the CoreDNS replica count
to match the number of masters (e.g. a 3-master cluster
previously used replicas:1, now replicas:3)
* Add AntiAffinity preferred rule to favor distributing
CoreDNS pods across controller nodes nodes
2018-10-13 20:31:29 -07:00
Dalton Hubble 43fe78a2cc Raise scheduler/controller-manager replicas in multi-master
* Continue to ensure scheduler and controller-manager run
at least two replicas to support performing kubectl edits
on single-master clusters (no change)
* For multi-master clusters, set scheduler / controller-manager
replica count to the number of masters (e.g. a 3-master cluster
previously used replicas:2, now replicas:3)
2018-10-13 16:16:29 -07:00
Dalton Hubble 5a283b6443 Update etcd from v3.3.9 to v3.3.10
* https://github.com/etcd-io/etcd/blob/master/CHANGELOG-3.3.md#v3310-2018-10-10
2018-10-13 13:14:37 -07:00
Dalton Hubble 7653e511be Update CoreDNS and Calico versions
* Update CoreDNS from 1.1.3 to 1.2.2
* Update Calico from v3.2.1 to v3.2.3
2018-10-02 16:07:48 +02:00
Dalton Hubble ad871dbfa9 Update Kubernetes from v1.11.2 to v1.11.3
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.11.md#v1113
2018-09-13 18:50:41 -07:00
Dalton Hubble 4882fe1053 Add docs for Azure Ingress and worker pools
* Azure worker pools must be in the same region as
the cluster itself unfortunately
2018-08-27 23:30:56 -07:00
Dalton Hubble 019009e9ee Add outputs for Azure ingress IPv4 and worker pools 2018-08-27 23:30:32 -07:00
Dalton Hubble 991a5c6cee Add new tutorial docs and links 2018-08-27 23:30:32 -07:00
Dalton Hubble c60ec642bc Fix Azure delete-node script to lowercase hostnames
* Fix issue where worker nodes didn't delete themselves on
scale-down or deallocation (e.g. low priority instances).
Lowercase the hostname and delete the Kubernetes node
* Kubelet registers the lowercase hostname as the node name,
but Azure workers get hostname CLUSTER-worker-GENERATED where
the generated identifier may contain uppercase characters
2018-08-27 23:30:32 -07:00
Dalton Hubble 38b4ff4700 Add module for Typhoon Azure with Container Linux 2018-08-27 23:30:32 -07:00