capi-yaml-gen

README

capi-yaml

Developer tool to generate yaml for Cluster-API and necessary provider resources.

Read more about this here

Usage Examples

Docker Infrastructure and Kubeadm Bootstrap Providerrs

• InfraProvider: Docker
• BootstrapProvider: Kubeadm
• KubernetesVersion: v1.14.2
• ControlPlaneMachineCount: 3
• WorkerMachineCountt: 1

$ go run main.go generate --controlplane-count 3
# yaml written to stdout

AWS Infrastructure and Kubeadm Bootstrap Providers

• InfraProvider: AWS
• BootstrapProvider: Kubeadm
• KubernetesVersion: v1.14.2
• ControlPlaneMachineCount: 3
• WorkerMachineCountt: 1

$ go run main.go generate --control-plane-count 3 --infrastructure-provider aws
# yaml written to stdout

MachineDeployments

By default workers will be managed by a MachineDeployment. If you do not want this behavior set the --generate-machined-deployment flag to false like this:

go run main.go generate --generate-machine-deployment=false

Output Examples

Generation of a baremetal cluster named capigen-demo with 3 control-plane nodes and 9 worker nodes.

GO111MODULE=on go install
capi-yaml-gen generate -i baremetal -c capigen-demo -m 3 -k 1.16.1 -n capigen-namespace -w 9 > capigen-demo.yaml

---
apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
kind: BareMetalCluster
metadata:
  creationTimestamp: null
  name: capigen-demo
  namespace: capigen-namespace
spec: {}
---
apiVersion: cluster.x-k8s.io/v1alpha3
kind: Cluster
metadata:
  creationTimestamp: null
  name: capigen-demo
  namespace: capigen-namespace
spec:
  clusterNetwork:
    pods:
      cidrBlocks:
      - 192.168.0.0/16
    services:
      cidrBlocks: []
  infrastructureRef:
    apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
    kind: BareMetalCluster
    name: capigen-demo
    namespace: capigen-namespace
---
apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
kind: BareMetalMachine
metadata:
  creationTimestamp: null
  name: controlplane-0
  namespace: capigen-namespace
spec:
  hostSelector: {}
  image:
    checksum: http://172.22.0.1/images/rhcos-ootpa-latest.qcow2.md5sum
    url: http://172.22.0.1/images/rhcos-ootpa-latest.qcow2
  userData:
    name: worker-user-data
    namespace: otherns
---
apiVersion: cluster.x-k8s.io/v1alpha3
kind: Machine
metadata:
  creationTimestamp: null
  labels:
    cluster.x-k8s.io/cluster-name: capigen-demo
    cluster.x-k8s.io/control-plane: "true"
  name: controlplane-0
  namespace: capigen-namespace
spec:
  bootstrap:
    configRef:
      apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
      kind: KubeadmConfig
      name: controlplane-0-config
      namespace: capigen-namespace
  infrastructureRef:
    apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
    kind: BareMetalMachine
    name: controlplane-0
    namespace: capigen-namespace
  metadata: {}
---
apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
kind: KubeadmConfig
metadata:
  creationTimestamp: null
  name: controlplane-0-config
  namespace: capigen-namespace
spec:
  clusterConfiguration:
    apiServer:
      extraArgs:
        cloud-provider: baremetal
    certificatesDir: ""
    controlPlaneEndpoint: ""
    controllerManager:
      extraArgs:
        cloud-provider: baremetal
    dns:
      type: ""
    etcd: {}
    imageRepository: ""
    kubernetesVersion: ""
    networking:
      dnsDomain: ""
      podSubnet: ""
      serviceSubnet: ""
    scheduler: {}
  initConfiguration:
    localAPIEndpoint:
      advertiseAddress: ""
      bindPort: 0
    nodeRegistration:
      kubeletExtraArgs:
        cloud-provider: baremetal
      name: '''{{ ds.meta_data.hostname }}'''
---
apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
kind: BareMetalMachine
metadata:
  creationTimestamp: null
  name: controlplane-1
  namespace: capigen-namespace
spec:
  hostSelector: {}
  image:
    checksum: http://172.22.0.1/images/rhcos-ootpa-latest.qcow2.md5sum
    url: http://172.22.0.1/images/rhcos-ootpa-latest.qcow2
  userData:
    name: worker-user-data
    namespace: otherns
---
apiVersion: cluster.x-k8s.io/v1alpha3
kind: Machine
metadata:
  creationTimestamp: null
  labels:
    cluster.x-k8s.io/cluster-name: capigen-demo
    cluster.x-k8s.io/control-plane: "true"
  name: controlplane-1
  namespace: capigen-namespace
spec:
  bootstrap:
    configRef:
      apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
      kind: KubeadmConfig
      name: controlplane-1-config
      namespace: capigen-namespace
  infrastructureRef:
    apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
    kind: BareMetalMachine
    name: controlplane-1
    namespace: capigen-namespace
  metadata: {}
---
apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
kind: KubeadmConfig
metadata:
  creationTimestamp: null
  name: controlplane-1-config
  namespace: capigen-namespace
spec:
  joinConfiguration:
    controlPlane:
      localAPIEndpoint:
        advertiseAddress: ""
        bindPort: 6443
    discovery: {}
    nodeRegistration:
      kubeletExtraArgs:
        cloud-provider: baremetal
      name: '''{{ ds.meta_data.hostname }}'''
---
apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
kind: BareMetalMachine
metadata:
  creationTimestamp: null
  name: controlplane-2
  namespace: capigen-namespace
spec:
  hostSelector: {}
  image:
    checksum: http://172.22.0.1/images/rhcos-ootpa-latest.qcow2.md5sum
    url: http://172.22.0.1/images/rhcos-ootpa-latest.qcow2
  userData:
    name: worker-user-data
    namespace: otherns
---
apiVersion: cluster.x-k8s.io/v1alpha3
kind: Machine
metadata:
  creationTimestamp: null
  labels:
    cluster.x-k8s.io/cluster-name: capigen-demo
    cluster.x-k8s.io/control-plane: "true"
  name: controlplane-2
  namespace: capigen-namespace
spec:
  bootstrap:
    configRef:
      apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
      kind: KubeadmConfig
      name: controlplane-2-config
      namespace: capigen-namespace
  infrastructureRef:
    apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
    kind: BareMetalMachine
    name: controlplane-2
    namespace: capigen-namespace
  metadata: {}
---
apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
kind: KubeadmConfig
metadata:
  creationTimestamp: null
  name: controlplane-2-config
  namespace: capigen-namespace
spec:
  joinConfiguration:
    controlPlane:
      localAPIEndpoint:
        advertiseAddress: ""
        bindPort: 6443
    discovery: {}
    nodeRegistration:
      kubeletExtraArgs:
        cloud-provider: baremetal
      name: '''{{ ds.meta_data.hostname }}'''
---
apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
kind: BareMetalMachineTemplate
metadata:
  creationTimestamp: null
  name: worker-md
  namespace: capigen-namespace
spec:
  template:
    spec:
      hostSelector: {}
      image:
        checksum: ""
        url: ""

---
apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
kind: KubeadmConfigTemplate
metadata:
  creationTimestamp: null
  name: worker-md
  namespace: capigen-namespace
spec:
  template:
    spec:
      joinConfiguration:
        discovery: {}
        nodeRegistration:
          kubeletExtraArgs:
            cloud-provider: baremetal
          name: '''{{ ds.meta_data.hostname }}'''

---
apiVersion: cluster.x-k8s.io/v1alpha3
kind: MachineDeployment
metadata:
  creationTimestamp: null
  name: worker-md
  namespace: capigen-namespace
spec:
  replicas: 9
  selector:
    matchLabels:
      cluster.x-k8s.io/cluster-name: capigen-demo
  template:
    metadata:
      labels:
        cluster.x-k8s.io/cluster-name: capigen-demo
    spec:
      bootstrap:
        configRef:
          apiVersion: bootstrap.cluster.x-k8s.io/v1alpha3
          kind: KubeadmConfigTemplate
          name: worker-md
          namespace: capigen-namespace
      infrastructureRef:
        apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
        kind: BareMetalMachineTemplate
        name: worker-md
        namespace: capigen-namespace
      metadata: {}
      version: 1.16.1