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This adds windows-calico template and adds windows docs
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| # Create a Windows workload cluster | ||
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| ## Overview | ||
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| CAPOCI enables users to create and manage Windows workload clusters in Oracle Cloud Infrastructure (OCI). | ||
| This means that the [Kubernetes Control Plane][kubernetes-control-plane] will be Linux and the nodes will be Windows. | ||
| First, users build the [Windows image using image-builder][image-builder], then use the Windows flavor | ||
| template from the [latest release][capoci-latest-release]. Finally, install the [Calico CNI Provider | ||
| and OCI Cloud Controller Manager](#install-calico-cni-provider-and-oci-cloud-controller-manager). | ||
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| ## Known Limitations | ||
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| The Windows workload cluster has known limitations: | ||
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| - Limited to [Standard Bare Metal (BM) shapes][bm-shapes] | ||
| - Limited to OCI provided platform images. See [image-build documentation][image-builder] for more details | ||
| - Custom image MUST be built using the same shape of Bare Metal the worker nodes will run | ||
| - CNI provider support is [Calico in VXLAN mode][calico-windows] | ||
| - [Block volumes][block-volume] are not currently supported | ||
| - Bring Your Own License (BYOL) is not supported | ||
| - See [Calico windows docs][calico-limitations] for their limitations | ||
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| ## Licensing | ||
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| BYOL is currently not supported using CAPOCI. For more info on Windows Licensing | ||
| see the [Compute FAQ documentation][compute-windows-faq]. | ||
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| ## Build Windows image | ||
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| > NOTE: It is recommended to [check shape availability](#check-shape-availability) before building image(s) | ||
| In order to launch Windows instances for the cluster a Windows image, [using image-builder][image-builder], | ||
| will need to be built. It is **important** to make sure the same shape is used to build and launch the instance. | ||
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| Example: If a `BM.Standard2.52` is used to build then the `OCI_NODE_MACHINE_TYPE` MUST | ||
| be `BM.Standard2.52` | ||
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| ## Check shape availability | ||
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| Make sure the [OCI CLI][install-oci-cli] is installed. Then set the AD information if using | ||
| muti-AD regions. | ||
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| > NOTE: Use the [OCI Regions and Availability Domains][regions] page to figure out which | ||
| regions have multiple ADs. | ||
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| ```bash | ||
| oci iam availability-domain list --compartment-id=<your compartment> --region=<region> | ||
| ``` | ||
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| Using the AD `name` from the output above start searching for BM shape availability. | ||
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| ```bash | ||
| oci compute shape list --compartment-id=<your compartment> --profile=DEFAULT --region=us-ashburn-1 --availability-domain=<your AD ID> | grep BM | ||
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| "shape": "BM.Standard.E3.128" | ||
| "shape-name": "BM.Standard2.52" | ||
| "shape-name": "BM.Standard.E3.128" | ||
| "shape": "BM.Standard.E2.64" | ||
| "shape-name": "BM.Standard2.52" | ||
| "shape-name": "BM.Standard3.64" | ||
| "shape": "BM.Standard1.36" | ||
| ``` | ||
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| > NOTE: If the output is empty then the compartment for that region/AD doesn't have BM shapes. | ||
| If you are unable to locate any shapes you may need to submit a | ||
| [service limit increase request][compute-service-limit] | ||
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| ## Create a new Windows workload cluster | ||
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| It is recommended to have the following guides handy: | ||
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| - [Windows Cluster Debugging][windows-cluster-debug] | ||
| - [Windows Container Debugging][windows-containers-debug] | ||
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| When using `clusterctl` to generate the cluster use the `windows-calico` example flavor. | ||
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| The following command uses the `OCI_CONTROL_PLANE_MACHINE_TYPE` and `OCI_NODE_MACHINE_TYPE` | ||
| parameters to specify bare metal shapes instead of using CAPOCI's default virtual | ||
| instance shape. The `OCI_CONTROL_PLANE_PV_TRANSIT_ENCRYPTION` and `OCI_NODE_PV_TRANSIT_ENCRYPTION` | ||
| parameters disable encryption of data in flight between the bare metal instance and the block storage resources. | ||
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| > NOTE: The `OCI_NODE_MACHINE_TYPE_OCPUS` must match the OPCU count of the BM shape. | ||
| See the [Compute Shapes][bm-shapes] page to get the OCPU count for the specific shape. | ||
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| ```bash | ||
| OCI_COMPARTMENT_ID=<compartment-id> \ | ||
| OCI_CONTROL_PLANE_IMAGE_ID=<linux-custom-image-id> \ | ||
| OCI_NODE_IMAGE_ID=<windows-custom-image-id> \ | ||
| OCI_SSH_KEY=<ssh-key> \ | ||
| NODE_MACHINE_COUNT=1 \ | ||
| OCI_NODE_MACHINE_TYPE=BM.Standard.E4.128 \ | ||
| OCI_NODE_MACHINE_TYPE_OCPUS=128 \ | ||
| OCI_NODE_PV_TRANSIT_ENCRYPTION=false \ | ||
| OCI_CONTROL_PLANE_MACHINE_TYPE_OCPUS=3 \ | ||
| OCI_CONTROL_PLANE_MACHINE_TYPE=VM.Standard3.Flex \ | ||
| CONTROL_PLANE_MACHINE_COUNT=3 \ | ||
| OCI_SHAPE_MEMORY_IN_GBS= \ | ||
| KUBERNETES_VERSION=<k8s-version> \ | ||
| clusterctl generate cluster <cluster-name> \ | ||
| --target-namespace default \ | ||
| --flavor windows-calico | kubectl apply -f - | ||
| ``` | ||
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| ### Access workload cluster Kubeconfig | ||
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| Execute the following command to list all the workload clusters present: | ||
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| ```bash | ||
| kubectl get clusters -A | ||
| ``` | ||
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| Execute the following command to access the kubeconfig of a workload cluster: | ||
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| ```bash | ||
| clusterctl get kubeconfig <cluster-name> -n default > <cluster-name>.kubeconfig | ||
| ``` | ||
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| ### Install Calico CNI Provider and OCI Cloud Controller Manager | ||
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| #### Install Calico | ||
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| The [Calico for Windows][calico-windows] getting started guide should be read for better understand of the CNI on Windows. | ||
| It is recommended to have the following guides handy: | ||
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| - [Windows Calico Troubleshooting][calico-windows-debug] | ||
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| ##### The steps to follow: | ||
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| **On the management cluster** | ||
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| 1. Run | ||
| ``` | ||
| kubectl get OCICluster <cluster-name> -o jsonpath='{.spec.controlPlaneEndpoint.host}' | ||
| ``` | ||
| to get the `KUBERNETES_SERVICE_HOST` info that will be used in later steps | ||
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| **On the workload cluster** | ||
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| 1. Download the [v3.24.5 calico release][calico-release] | ||
| ``` | ||
| curl -L https://github.com/projectcalico/calico/releases/download/v3.24.5/release-v3.24.5.tgz -o calico-v3.24.5.tgz | ||
| ``` | ||
| 1. Uncompress the downloaded file and locate the `calico-vxlan.yaml`, `calico-windows-vxlan.yaml` and `windows-kube-proxy.yaml` | ||
| files in the `manifests` dir | ||
| 1. Edit the `calico-vxlan.yaml` and modify the follow variables to allow Calico running on the nodes use VXLAN | ||
| - `CALICO_IPV4POOL_IPIP` - set to `"Never"` | ||
| - `CALICO_IPV4POOL_VXLAN` - set to `"Always"` | ||
| 1. ``` | ||
| kubectl apply -f calico-vxlan.yaml | ||
| ``` | ||
| 1. Wait for the IPAMConfig to be loaded | ||
| 1. ``` | ||
| kubectl patch IPAMConfig default --type merge --patch='{"spec": {"strictAffinity": true}}' | ||
| ``` | ||
| 1. Edit the `calico-windows-vxlan.yaml` and modify the follow variables to allow Calico running on the nodes to talk | ||
| to the Kubernetes control plane | ||
| - `KUBERNETES_SERVICE_HOST` - the IP address from the management cluster step | ||
| - `KUBERNETES_SERVICE_PORT`- the port from step the management cluster step | ||
| - `K8S_SERVICE_CIDR` - The service CIDR set in the cluster template | ||
| - `DNS_NAME_SERVERS` - the IP address from dns service | ||
| ``` | ||
| kubectl get svc kube-dns -n kube-system -o jsonpath='{.spec.clusterIP}' | ||
| ``` | ||
| - Change the namespace from `calico-system` to `kube-system` | ||
| - add the following `env` to the container named `node` | ||
| ```yaml | ||
| - name: VXLAN_ADAPTER | ||
| value: "Ethernet 2" | ||
| ``` | ||
| 1. ``` | ||
| kubectl apply -f calico-windows-vxlan.yaml | ||
| ``` | ||
| (it takes a bit for this to pass livenessprobe) | ||
| 1. Edit the `windows-kube-proxy.yaml` | ||
| - update the `kube-proxy` container environment variable `K8S_VERSION` to the version of kubernetes you are deploying | ||
| - update the `image` version for the container named `kube-proxy` and make sure to set the | ||
| correct [windows nanoserver version][docker-hub-nanoserver] example: `ltsc2019` | ||
| 1. ``` | ||
| kubectl apply -f windows-kube-proxy.yaml | ||
| ``` | ||
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| #### Install OCI Cloud Controller Manager | ||
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| By default, the [OCI Cloud Controller Manager (CCM)][oci-ccm] is not installed into a workload cluster. To install the OCI CCM, follow [these instructions][install-oci-ccm]. | ||
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| ### Scheduling Windows containers | ||
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| With the cluster in a ready state and CCM installed, an [example deployment][win-webserver-deployment] | ||
| can be used to test that pods are scheduled. Accessing the deployed pods and using `nslookup` you can | ||
| [test that the cluster DNS is working][win-webserver-dns]. | ||
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| [block-volume]: https://docs.oracle.com/en-us/iaas/Content/GSG/Tasks/addingstorage.htm | ||
| [bm-shapes]: https://docs.oracle.com/en-us/iaas/Content/Compute/References/computeshapes.htm#bm-standard | ||
| [calico-limitations]: https://docs.tigera.io/calico/3.24/getting-started/kubernetes/windows-calico/limitations | ||
| [calico-release]: https://github.com/projectcalico/calico/releases/download/v3.24.5/release-v3.24.5.tgz | ||
| [calico-windows]: https://docs.tigera.io/calico/3.24/getting-started/kubernetes/windows-calico/ | ||
| [calico-windows-debug]: https://docs.tigera.io/calico/3.24/getting-started/kubernetes/windows-calico/troubleshoot | ||
| [capoci-latest-release]: https://github.com/oracle/cluster-api-provider-oci/releases/latest | ||
| [compute-service-limit]: https://docs.oracle.com/en-us/iaas/Content/General/Concepts/servicelimits.htm#computelimits | ||
| [compute-windows-faq]: https://www.oracle.com/cloud/compute/faq/#category-windows | ||
| [docker-hub-nanoserver]: https://hub.docker.com/_/microsoft-windows-nanoserver | ||
| [image-builder]: https://image-builder.sigs.k8s.io/capi/providers/oci.html#building-a-windows-image | ||
| [install-ccm]: ../gs/create-workload-cluster.md#install-oci-cloud-controller-manager-and-csi-in-a-self-provisioned-cluster | ||
| [install-oci-ccm]: ./install-oci-ccm.md | ||
| [install-oci-cli]: https://docs.oracle.com/en-us/iaas/Content/API/SDKDocs/cliinstall.htm | ||
| [kubernetes-control-plane]: https://kubernetes.io/docs/concepts/overview/components/#control-plane-components | ||
| [oci-ccm]: https://github.com/oracle/oci-cloud-controller-manager | ||
| [regions]: https://docs.oracle.com/en-us/iaas/Content/General/Concepts/regions.htm | ||
| [win-webserver-deployment]: https://kubernetes.io/docs/concepts/windows/user-guide/ | ||
| [win-webserver-dns]: https://kubernetes.io/docs/tutorials/services/connect-applications-service/#dns | ||
| [windows-cluster-debug]: https://kubernetes.io/docs/tasks/debug/debug-cluster/windows/ | ||
| [windows-containers-debug]: https://learn.microsoft.com/en-us/virtualization/windowscontainers/kubernetes/common-problems | ||
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