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mcbenjemaatuunitFelix Wischke (65278)
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Support Flatcar and provide ignition bootstrap data (#308)
* add metadata handling for proxmox node name * First draft: flatcar and ignition support * Revert "add metadata handling for proxmox node name" This reverts commit 3dd5aae. * Make The Ignition ISO able to be unmounted * Fixes lints * Fixes Tests * remove unsed config and Fixes Test * Set ipv6 * add tests * add tests for injector * more test coverage * Fix lint * Provide a correct cluster template * Provide docs on how to provision cluster with flatcar * Address reviews * Update envtest * Address reviwes and try e2e test with skip label * Implement networkd config units with VRFs * Tidy * E2e test for flatcar * Use correct template for flatcar * Add more tests * Simpler units name * add comment for netdev index * Address reviews * remove uncessary variable * Add note about EXP_KUBEADM_BOOTSTRAP_FORMAT_IGNITION * Address reviews * Change ignition docs * Remove quotes * pkg/ignition/network.go: fix VRF routing rules policy table, add tests --------- Co-authored-by: tuunit <jan@larwig.com> Co-authored-by: Felix Wischke (65278) <felix@zeynix.de>
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‎.gitignore‎

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**e2e.test
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test/e2e/config/*-envsubst.yaml
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# asdf package manager
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.tool-versions
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.tool-versions

‎Makefile‎

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## Tool Versions
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KUSTOMIZE_VERSION ?= v5.0.0
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CONTROLLER_TOOLS_VERSION ?= v0.15.0
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ENVTEST_VERSION ?= latest
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KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
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.PHONY: kustomize
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.PHONY: envtest
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envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
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$(ENVTEST): $(LOCALBIN)
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test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@v0.0.0-20240208111015-5923139bc5bd
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test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@$(ENVTEST_VERSION)
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##@ Test
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# Allow overriding the e2e configurations
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GINKGO_FOCUS ?= Workload cluster creation
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GINKGO_SKIP ?= API Version Upgrade
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GINKGO_SKIP ?= Generic|Flatcar
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GINKGO_NODES ?= 1
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GINKGO_NOCOLOR ?= false
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GINKGO_ARGS ?=

‎api/v1alpha1/proxmoxmachine_types.go‎

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From string `json:"from,omitempty"`
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// Table is the routing table ID.
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// when used in the networks, the value should be the VRF Table.
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// +optional
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Table *uint32 `json:"table,omitempty"`
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‎config/crd/bases/infrastructure.cluster.x-k8s.io_proxmoxclusters.yaml‎

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rule: (self > 0 && self < 32765) || (self
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table:
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description: Table is the routing table
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ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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type: integer
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rule: (self > 0 && self < 32765) || (self
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table:
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description: Table is the routing table
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ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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type: integer
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‎config/crd/bases/infrastructure.cluster.x-k8s.io_proxmoxclustertemplates.yaml‎

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rule: (self > 0 && self < 32765)
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|| (self > 32766)
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table:
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description: Table is the routing
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table ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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type: integer
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rule: (self > 0 && self < 32765)
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|| (self > 32766)
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table:
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description: Table is the routing
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table ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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type: integer
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‎config/crd/bases/infrastructure.cluster.x-k8s.io_proxmoxmachines.yaml‎

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kernel rules
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rule: (self > 0 && self < 32765) || (self > 32766)
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table:
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description: Table is the routing table ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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type: integer
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kernel rules
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rule: (self > 0 && self < 32765) || (self > 32766)
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table:
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description: Table is the routing table ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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‎config/crd/bases/infrastructure.cluster.x-k8s.io_proxmoxmachinetemplates.yaml‎

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table:
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description: Table is the routing table ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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format: int32
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table:
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description: Table is the routing table ID.
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description: |-
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Table is the routing table ID.
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when used in the networks, the value should be the VRF Table.
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‎docs/Usage.md‎

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| default | templates/cluster-template.yaml | - |
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| cilium loadbalancer | templates/cluster-template-cilium-load-balancer.yaml | templates/crs/cni/cilium.yaml, templates/crs/metallb.yaml |
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| external-creds | templates/cluster-template-external-creds.yaml | |
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| flatcar | templates/cluster-template-flatcar.yaml | |
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For more information about advanced clusters please check our [advanced setups docs](advanced-setups.md).
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kubectl delete cluster proxmox-quickstart
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```
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#### Provision a cluster with Flatcar Container Linux Images
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To provision a cluster with Flatcar, you need to build a suitable image with [image-builder](https://github.com/kubernetes-sigs/image-builder)
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Once this PR [#1589](https://github.com/kubernetes-sigs/image-builder/pull/1589) is merged, you can follow the official docs on how to build a Flatcar image for Proxmox.
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After you create a VM template using Flatcar, you can provision a cluster with the following options:
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First, make sure to enable the
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[experimental-feature-ignition-bootstrap-config](https://cluster-api.sigs.k8s.io/tasks/experimental-features/ignition#experimental-feature-ignition-bootstrap-config-alpha)
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you can do so, by [Enabling Experimental Features on Existing Management Clusters](https://cluster-api.sigs.k8s.io/tasks/experimental-features/experimental-features#enabling-experimental-features-on-existing-management-clusters)
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Then, you can generate a cluster manifest with the following command:
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```shell
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$ clusterctl generate cluster flatcar-quickstart \
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--infrastructure proxmox \
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--kubernetes-version v1.30.5 \
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--control-plane-machine-count 3 \
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--worker-machine-count 3 \
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--flavor flatcar > cluster.yaml
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$ kubectl apply -f cluster.yaml
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```
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**Notes**:
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- Make sure to define at least one ssh key in the `VM_SSH_KEYS` environment variable, or the cluster will fail to provision.
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- If you want more customization, you can extend the template to add multiple interfaces or dual-stack.
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- Make sure that the ProxmoxMachines always ignore the cloud-init status by defining `spec.checks.skipCloudInitStatus: true` in the ProxmoxMachine CR.
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```yaml
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spec:
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checks:
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skipQemuGuestAgent: false
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skipCloudInitStatus: true
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```
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### Custom cluster templates
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If you need anything specific that requires a more complex setup, we recommend to use custom templates:

‎go.mod‎

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replace github.com/google/cel-go => github.com/google/cel-go v0.17.8
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require (
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github.com/flatcar/ignition v0.36.2
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github.com/go-logr/logr v1.4.2
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github.com/google/uuid v1.6.0
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github.com/jarcoal/httpmock v1.3.1
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github.com/Microsoft/go-winio v0.5.0 // indirect
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github.com/ProtonMail/go-crypto v0.0.0-20230217124315-7d5c6f04bbb8 // indirect
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github.com/adrg/xdg v0.5.0 // indirect
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github.com/ajeddeloh/go-json v0.0.0-20200220154158-5ae607161559 // indirect
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github.com/alessio/shellescape v1.4.2 // indirect
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github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230305170008-8188dc5388df // indirect
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github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
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github.com/cenkalti/backoff/v4 v4.2.1 // indirect
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github.com/cespare/xxhash/v2 v2.2.0 // indirect
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github.com/cloudflare/circl v1.3.7 // indirect
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github.com/coreos/go-semver v0.3.1 // indirect
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github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf // indirect
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github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
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github.com/diskfs/go-diskfs v1.2.0 // indirect
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github.com/distribution/reference v0.6.0 // indirect
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github.com/stretchr/objx v0.5.2 // indirect
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github.com/subosito/gotenv v1.6.0 // indirect
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github.com/valyala/fastjson v1.6.4 // indirect
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github.com/vincent-petithory/dataurl v1.0.0 // indirect
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go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
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go.opentelemetry.io/otel v1.24.0 // indirect
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go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.22.0 // indirect
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go.opentelemetry.io/proto/otlp v1.0.0 // indirect
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go.uber.org/multierr v1.11.0 // indirect
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go.uber.org/zap v1.27.0 // indirect
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go4.org v0.0.0-20201209231011-d4a079459e60 // indirect
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golang.org/x/crypto v0.29.0 // indirect
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golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
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golang.org/x/mod v0.22.0 // indirect

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