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Overview ¶
Package controller contains all our controllers. They are sorted by binary they run in, which means that for all folders here a corresponding folder in the `cmd/` directory has to exist.
The only exception here are the `util` package which does not contain any controllers but some helpers and the `shared` package which contains controllers that run within more than one binary.
Source Files
Directories
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| Path | Synopsis |
|---|---|
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Package kubeletdnat contains the kubeletdnat controller which: * Is needed for all controlplane components running in the seed that need to reach nodes * Is not needed if reaching the pods is sufficient * Must be used in conjunction with the openvpn client * Creates NAT rules for both the public and private node IP that tunnels access to them via the VPN * Its counterpart runs within the openvpn client pod in the usercluster, is part of the openvpn addon and written in bash
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Package kubeletdnat contains the kubeletdnat controller which: * Is needed for all controlplane components running in the seed that need to reach nodes * Is not needed if reaching the pods is sufficient * Must be used in conjunction with the openvpn client * Creates NAT rules for both the public and private node IP that tunnels access to them via the VPN * Its counterpart runs within the openvpn client pod in the usercluster, is part of the openvpn addon and written in bash |
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Package mastercontrollermanager contains all controllers that run within the master-controller-manager binary.
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Package mastercontrollermanager contains all controllers that run within the master-controller-manager binary. |
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project-label-synchronizer
Package projectlabelsynchronizer contains a controller that synchronizes labels from a project onto all the clusters that belong to the project, without allowing them to be overridden.
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Package projectlabelsynchronizer contains a controller that synchronizes labels from a project onto all the clusters that belong to the project, without allowing them to be overridden. |
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rbac
Package rbac contains a controller that is responsible for setting up RBAC to allow users to access the clusters they should be able to access.
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Package rbac contains a controller that is responsible for setting up RBAC to allow users to access the clusters they should be able to access. |
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seed-proxy
Package seedproxy contains a controller that is responsible for creating various resources in the master cluster to be able to access the other seeds clusters prometheus, leveraring `kubectl proxy` under the hood.
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Package seedproxy contains a controller that is responsible for creating various resources in the master cluster to be able to access the other seeds clusters prometheus, leveraring `kubectl proxy` under the hood. |
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seed-sync
Package seedsync contains a controller that is responsible for synchronizing the `Seed` custom resources onto the corresponding seed clusters, so that the seed-controller-manager can use them.
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Package seedsync contains a controller that is responsible for synchronizing the `Seed` custom resources onto the corresponding seed clusters, so that the seed-controller-manager can use them. |
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usersshkeyssynchronizer
The usersshkeyssynchronizer controller is responsible for synchronizing usersshkeys into a secret in the cluster namespace.
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The usersshkeyssynchronizer controller is responsible for synchronizing usersshkeys into a secret in the cluster namespace. |
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Package operator contains all controllers that run within the kubermatic operator binary.
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Package operator contains all controllers that run within the kubermatic operator binary. |
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seed/resources/nodeportproxy
Package nodeportproxy is responsible for reconciling a seed-cluster-wide proxy based on Envoy and a custom envoy-manager/lb-updater tools.
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Package nodeportproxy is responsible for reconciling a seed-cluster-wide proxy based on Envoy and a custom envoy-manager/lb-updater tools. |
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Package seedcontrollermanager contains a package for each controller that runs within the seed controller manager binary.
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Package seedcontrollermanager contains a package for each controller that runs within the seed controller manager binary. |
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addon
Package addon contains a controller that applies addons based on a Addon CRD.
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Package addon contains a controller that applies addons based on a Addon CRD. |
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addoninstaller
Package addoninstaller contains a controller that is responsible for making sure a set of addons that are configured via a flag on the controller-manager and are required for basic cluster functionality exist for all clusters.
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Package addoninstaller contains a controller that is responsible for making sure a set of addons that are configured via a flag on the controller-manager and are required for basic cluster functionality exist for all clusters. |
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backup
Package backup contains a controller that is responsible for creating backup-related resources.
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Package backup contains a controller that is responsible for creating backup-related resources. |
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cloud
Package cloud contains a controller that is responsible for creating cluster-level resources at the cloud provider, like networks, subnets or security groups.
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Package cloud contains a controller that is responsible for creating cluster-level resources at the cloud provider, like networks, subnets or security groups. |
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clustercomponentdefaulter
Package clustercomponentdefaulter contains a controller that is responsible for applying some defaults for various controlplane components, but never overwrites them to make out-of-tree customization is still possible.
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Package clustercomponentdefaulter contains a controller that is responsible for applying some defaults for various controlplane components, but never overwrites them to make out-of-tree customization is still possible. |
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kubernetes
Package kubernetes contains a controller that reconciles all controlplane components in the seed needed for Kubernetes clusters.
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Package kubernetes contains a controller that reconciles all controlplane components in the seed needed for Kubernetes clusters. |
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monitoring
Package monitoring contains a controller that reconciles all monitoring-related components for all cluster types in the seed.
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Package monitoring contains a controller that reconciles all monitoring-related components for all cluster types in the seed. |
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openshift
Package openshift contains a controller that reconciles all controlplane components in the seed needed for Openshift clusters.
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Package openshift contains a controller that reconciles all controlplane components in the seed needed for Openshift clusters. |
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rancher
Package rancher contains a controller responsible for reconciling all rancher-related resources in the seed for Kubernetes clusters, as Rancher doesn't support openshift.
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Package rancher contains a controller responsible for reconciling all rancher-related resources in the seed for Kubernetes clusters, as Rancher doesn't support openshift. |
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seedresourcesuptodatecondition
Package seedresourcesuptodatecondition contains a controller that is responsible for: * Setting a condition on the cluster object when all Deployments and Statefulsets were fully rolled out * This condition serves the purpose of limiting the load imposed on the seed * All controllers that create Deployments or Statefulsets in the seed must respect it via `controllerutil.ClusterAvailableForReconciling`
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Package seedresourcesuptodatecondition contains a controller that is responsible for: * Setting a condition on the cluster object when all Deployments and Statefulsets were fully rolled out * This condition serves the purpose of limiting the load imposed on the seed * All controllers that create Deployments or Statefulsets in the seed must respect it via `controllerutil.ClusterAvailableForReconciling` |
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update
Package update contains a controller that auto applies updates to both the cluster version and the machine version based on a configuration file.
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Package update contains a controller that auto applies updates to both the cluster version and the machine version based on a configuration file. |
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Package shared contains all controllers that are imported by more than one controller-manager
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Package shared contains all controllers that are imported by more than one controller-manager |
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Package userclustercontrollermanager contains all controllers running in the usercluster controller manager binary.
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Package userclustercontrollermanager contains all controllers running in the usercluster controller manager binary. |
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cluster-role-labeler
Package clusterrolelabeler contains a controller that is responsible for ensuring that the viewer, editor and admin clusterroles have a `component: userClusterRole` label associated.
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Package clusterrolelabeler contains a controller that is responsible for ensuring that the viewer, editor and admin clusterroles have a `component: userClusterRole` label associated. |
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container-linux
Package containerlinux contains the containerlinux controller that is responsible for deploying the [Container Linux Update Operator](https://github.com/coreos/container-linux-update-operator) operator and DaemonSet
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Package containerlinux contains the containerlinux controller that is responsible for deploying the [Container Linux Update Operator](https://github.com/coreos/container-linux-update-operator) operator and DaemonSet |
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ipam
Package ipam contains a controller responsible for assigning IP addresses from a configured pool to machines that have an annotation keyed `machine-controller.kubermatic.io/initializers` which contains the value ipam.
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Package ipam contains a controller responsible for assigning IP addresses from a configured pool to machines that have an annotation keyed `machine-controller.kubermatic.io/initializers` which contains the value ipam. |
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node-labeler
Package nodelabeler contains a controller that ensures Nodes have various labels present at all times: * A `x-kubernetes.io/distribution` label with a value of `centos`, `ubuntu`, `container-linux`, `rhel` or `sles` * A set of labels configured on the controller via a flag that are inherited from the cluster object
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Package nodelabeler contains a controller that ensures Nodes have various labels present at all times: * A `x-kubernetes.io/distribution` label with a value of `centos`, `ubuntu`, `container-linux`, `rhel` or `sles` * A set of labels configured on the controller via a flag that are inherited from the cluster object |
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nodecsrapprover
Package nodecsrapprover contains a controller responsible for autoapproving CSRs created by nodes for serving certificates.
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Package nodecsrapprover contains a controller responsible for autoapproving CSRs created by nodes for serving certificates. |
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openshift-master-node-labeler
Package openshiftmasternodelabeler contains a controller that makes sure there is always one randomly selected nodes with a `node-role.kubernetes.io/master` label on it.
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Package openshiftmasternodelabeler contains a controller that makes sure there is always one randomly selected nodes with a `node-role.kubernetes.io/master` label on it. |
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openshift-seed-syncer
The openshiftseedsyncer controller is responsible for syncing resources from Openshift userclusters into the seed cluster namespace.
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The openshiftseedsyncer controller is responsible for syncing resources from Openshift userclusters into the seed cluster namespace. |
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owner-binding-creator
The ownerbindingcreator controller is responsible for making sure that the binding exists and if it doesn't, will create it and use the cluster owner as subject.
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The ownerbindingcreator controller is responsible for making sure that the binding exists and if it doesn't, will create it and use the cluster owner as subject. |
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resources
Package resources contains the resources controller responsible for making sure the various Kubernetes resources we need in the usercluster like RBAC, Deployments, ServiceAccounts and much more are present.
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Package resources contains the resources controller responsible for making sure the various Kubernetes resources we need in the usercluster like RBAC, Deployments, ServiceAccounts and much more are present. |
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role-cloner
Package rolecloner contains a controller that duplicates all roles with the `component=userClusterRole` label that are in the kube-system namespace into all other namespaces.
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Package rolecloner contains a controller that duplicates all roles with the `component=userClusterRole` label that are in the kube-system namespace into all other namespaces. |
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Package usersshkeysagent contains the usersshkeysagent controller, which is deployed as a DaemonSet on all usercluster nodes and responsible for synchronizing the `$HOME/.ssh/authorized_keys` file for all users we know about (root, core, ubuntu, centos) and that exist with the content of a secret.
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Package usersshkeysagent contains the usersshkeysagent controller, which is deployed as a DaemonSet on all usercluster nodes and responsible for synchronizing the `$HOME/.ssh/authorized_keys` file for all users we know about (root, core, ubuntu, centos) and that exist with the content of a secret. |
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Package util contains helpers for building controllers.
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Package util contains helpers for building controllers. |
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