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11 commits

Author SHA1 Message Date
Johan Thomsen 00975b5628 Revert "Merge pull request #56789 from mayflower/upstream-k8s-refactor"
This reverts commit 7dc6e77bc2, reversing
changes made to bce47ea9d5.

Motivation for the revert in #67563
2019-09-04 17:37:02 +02:00
Aaron Andersen 4a11ce7f26
cleanup redundant text in modules utilizing mkEnableOption
Closes #59911
2019-04-20 14:44:02 +02:00
Robin Gloster 7dc6e77bc2
Merge pull request #56789 from mayflower/upstream-k8s-refactor
nixos/kubernetes: stabilize cluster deployment/startup across machines
2019-04-17 16:37:58 +00:00
Christian Albrecht ce83dc2c52
Cleanup pki: controller-manager 2019-03-11 12:22:36 +01:00
Johan Thomsen 80c4fd4f85 nixos/kubernetes: minor module fixes
- mkDefault etcd instance name
- make sure ca-cert in mkKubeConfig can be overriden
- fix controller-manager "tls-private-key-file" flag name
2019-03-08 09:18:51 +01:00
Christian Albrecht 7323b77435
nixos/kubernetes: Address review: Separate preStart from certificates 2019-03-06 16:55:08 +01:00
Christian Albrecht 52fe1d2e7a
nixos/kubernetes: Address review: Move controller manager paths into pki 2019-03-06 16:55:04 +01:00
Christian Albrecht ff91d5818c
nixos/kubernetes: Address review: Rename targets and move proxy to node-online.target 2019-03-06 16:54:22 +01:00
Christian Albrecht 62f03750e4
nixos/kubernetes: Stabilize services startup across machines
by adding targets and curl wait loops to services to ensure services
are not started before their depended services are reachable.

Extra targets cfssl-online.target and kube-apiserver-online.target
syncronize starts across machines and node-online.target ensures
docker is restarted and ready to deploy containers on after flannel
has discussed the network cidr with apiserver.

Since flannel needs to be started before addon-manager to configure
the docker interface, it has to have its own rbac bootstrap service.

The curl wait loops within the other services exists to ensure that when
starting the service it is able to do its work immediately without
clobbering the log about failing conditions.

By ensuring kubernetes.target is only reached after starting the
cluster it can be used in the tests as a wait condition.

In kube-certmgr-bootstrap mkdir is needed for it to not fail to start.

The following is the relevant part of systemctl list-dependencies

default.target
● ├─certmgr.service
● ├─cfssl.service
● ├─docker.service
● ├─etcd.service
● ├─flannel.service
● ├─kubernetes.target
● │ ├─kube-addon-manager.service
● │ ├─kube-proxy.service
● │ ├─kube-apiserver-online.target
● │ │ ├─flannel-rbac-bootstrap.service
● │ │ ├─kube-apiserver-online.service
● │ │ ├─kube-apiserver.service
● │ │ ├─kube-controller-manager.service
● │ │ └─kube-scheduler.service
● │ └─node-online.target
● │   ├─node-online.service
● │   ├─flannel.target
● │   │ ├─flannel.service
● │   │ └─mk-docker-opts.service
● │   └─kubelet.target
● │     └─kubelet.service
● ├─network-online.target
● │ └─cfssl-online.target
● │   ├─certmgr.service
● │   ├─cfssl-online.service
● │   └─kube-certmgr-bootstrap.service
2019-03-03 19:39:02 +01:00
Christian Albrecht f9e2f76a59
nixos/kubernetes: Add systemd path units
to protect services from crashing and clobbering the logs when
certificates are not in place yet and make sure services are activated
when certificates are ready.

To prevent errors similar to "kube-controller-manager.path: Failed to
enter waiting state: Too many open files"
fs.inotify.max_user_instances has to be increased.
2019-03-03 19:34:57 +01:00
Johan Thomsen e2380e79e1
nixos/kubernetes: major module refactor
- All kubernetes components have been seperated into different files
- All TLS-enabled ports have been deprecated and disabled by default
- EasyCert option added to support automatic cluster PKI-bootstrap
- RBAC has been enforced for all cluster components by default
- NixOS kubernetes test cases make use of easyCerts to setup PKI
2019-02-20 21:08:01 +01:00