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Merge pull request #1021 from wzshiming/fix/kind-config
Structured Kind configuration
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| /* | ||
| Copyright 2024 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
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| // Package v1alpha4 copy from https://github.com/kubernetes-sigs/kind/blob/master/pkg/apis/config/v1alpha4/types.go | ||
| package v1alpha4 | ||
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| import ( | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
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| // Cluster contains kind cluster configuration | ||
| type Cluster struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
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| // The cluster name. | ||
| // Optional, this will be overridden by --name / KIND_CLUSTER_NAME | ||
| Name string `yaml:"name,omitempty" json:"name,omitempty"` | ||
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| // Nodes contains the list of nodes defined in the `kind` Cluster | ||
| // If unset this will default to a single control-plane node | ||
| // Note that if more than one control plane is specified, an external | ||
| // control plane load balancer will be provisioned implicitly | ||
| Nodes []Node `yaml:"nodes,omitempty" json:"nodes,omitempty"` | ||
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| /* Advanced fields */ | ||
|
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| // Networking contains cluster wide network settings | ||
| Networking Networking `yaml:"networking,omitempty" json:"networking,omitempty"` | ||
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| // FeatureGates contains a map of Kubernetes feature gates to whether they | ||
| // are enabled. The feature gates specified here are passed to all Kubernetes components as flags or in config. | ||
| // | ||
| // https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/ | ||
| FeatureGates map[string]bool `yaml:"featureGates,omitempty" json:"featureGates,omitempty"` | ||
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| // RuntimeConfig Keys and values are translated into --runtime-config values for kube-apiserver, separated by commas. | ||
| // | ||
| // Use this to enable alpha APIs. | ||
| RuntimeConfig map[string]string `yaml:"runtimeConfig,omitempty" json:"runtimeConfig,omitempty"` | ||
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| // KubeadmConfigPatches are applied to the generated kubeadm config as | ||
| // merge patches. The `kind` field must match the target object, and | ||
| // if `apiVersion` is specified it will only be applied to matching objects. | ||
| // | ||
| // This should be an inline yaml blob-string | ||
| // | ||
| // https://tools.ietf.org/html/rfc7386 | ||
| // | ||
| // The cluster-level patches are applied before the node-level patches. | ||
| KubeadmConfigPatches []string `yaml:"kubeadmConfigPatches,omitempty" json:"kubeadmConfigPatches,omitempty"` | ||
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| // KubeadmConfigPatchesJSON6902 are applied to the generated kubeadm config | ||
| // as JSON 6902 patches. The `kind` field must match the target object, and | ||
| // if group or version are specified it will only be objects matching the | ||
| // apiVersion: group+"/"+version | ||
| // | ||
| // Name and Namespace are now ignored, but the fields continue to exist for | ||
| // backwards compatibility of parsing the config. The name of the generated | ||
| // config was/is always fixed as is the namespace so these fields have | ||
| // always been a no-op. | ||
| // | ||
| // https://tools.ietf.org/html/rfc6902 | ||
| // | ||
| // The cluster-level patches are applied before the node-level patches. | ||
| KubeadmConfigPatchesJSON6902 []PatchJSON6902 `yaml:"kubeadmConfigPatchesJSON6902,omitempty" json:"kubeadmConfigPatchesJSON6902,omitempty"` | ||
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| // ContainerdConfigPatches are applied to every node's containerd config | ||
| // in the order listed. | ||
| // These should be toml stringsto be applied as merge patches | ||
| ContainerdConfigPatches []string `yaml:"containerdConfigPatches,omitempty" json:"containerdConfigPatches,omitempty"` | ||
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| // ContainerdConfigPatchesJSON6902 are applied to every node's containerd config | ||
| // in the order listed. | ||
| // These should be YAML or JSON formatting RFC 6902 JSON patches | ||
| ContainerdConfigPatchesJSON6902 []string `yaml:"containerdConfigPatchesJSON6902,omitempty" json:"containerdConfigPatchesJSON6902,omitempty"` | ||
| } | ||
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| // TypeMeta partially copies apimachinery/pkg/apis/meta/v1.TypeMeta | ||
| // No need for a direct dependence; the fields are stable. | ||
| type TypeMeta struct { | ||
| Kind string `yaml:"kind,omitempty" json:"kind,omitempty"` | ||
| APIVersion string `yaml:"apiVersion,omitempty" json:"apiVersion,omitempty"` | ||
| } | ||
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| // Node contains settings for a node in the `kind` Cluster. | ||
| // A node in kind config represent a container that will be provisioned with all the components | ||
| // required for the assigned role in the Kubernetes cluster | ||
| type Node struct { | ||
| // Role defines the role of the node in the Kubernetes cluster | ||
| // created by kind | ||
| // | ||
| // Defaults to "control-plane" | ||
| Role NodeRole `yaml:"role,omitempty" json:"role,omitempty"` | ||
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| // Image is the node image to use when creating this node | ||
| // If unset a default image will be used, see defaults.Image | ||
| Image string `yaml:"image,omitempty" json:"image,omitempty"` | ||
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| // Labels are the labels with which the respective node will be labeled | ||
| Labels map[string]string `yaml:"labels,omitempty" json:"labels,omitempty"` | ||
|
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| /* Advanced fields */ | ||
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| // TODO: cri-like types should be inline instead | ||
| // ExtraMounts describes additional mount points for the node container | ||
| // These may be used to bind a hostPath | ||
| ExtraMounts []Mount `yaml:"extraMounts,omitempty" json:"extraMounts,omitempty"` | ||
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| // ExtraPortMappings describes additional port mappings for the node container | ||
| // binded to a host Port | ||
| ExtraPortMappings []PortMapping `yaml:"extraPortMappings,omitempty" json:"extraPortMappings,omitempty"` | ||
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| // KubeadmConfigPatches are applied to the generated kubeadm config as | ||
| // merge patches. The `kind` field must match the target object, and | ||
| // if `apiVersion` is specified it will only be applied to matching objects. | ||
| // | ||
| // This should be an inline yaml blob-string | ||
| // | ||
| // https://tools.ietf.org/html/rfc7386 | ||
| // | ||
| // The node-level patches will be applied after the cluster-level patches | ||
| // have been applied. (See Cluster.KubeadmConfigPatches) | ||
| KubeadmConfigPatches []string `yaml:"kubeadmConfigPatches,omitempty" json:"kubeadmConfigPatches,omitempty"` | ||
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| // KubeadmConfigPatchesJSON6902 are applied to the generated kubeadm config | ||
| // as JSON 6902 patches. The `kind` field must match the target object, and | ||
| // if group or version are specified it will only be objects matching the | ||
| // apiVersion: group+"/"+version | ||
| // | ||
| // Name and Namespace are now ignored, but the fields continue to exist for | ||
| // backwards compatibility of parsing the config. The name of the generated | ||
| // config was/is always fixed as is the namespace so these fields have | ||
| // always been a no-op. | ||
| // | ||
| // https://tools.ietf.org/html/rfc6902 | ||
| // | ||
| // The node-level patches will be applied after the cluster-level patches | ||
| // have been applied. (See Cluster.KubeadmConfigPatchesJSON6902) | ||
| KubeadmConfigPatchesJSON6902 []PatchJSON6902 `yaml:"kubeadmConfigPatchesJSON6902,omitempty" json:"kubeadmConfigPatchesJSON6902,omitempty"` | ||
| } | ||
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| // NodeRole defines possible role for nodes in a Kubernetes cluster managed by `kind` | ||
| type NodeRole string | ||
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| const ( | ||
| // ControlPlaneRole identifies a node that hosts a Kubernetes control-plane. | ||
| // NOTE: in single node clusters, control-plane nodes act also as a worker | ||
| // nodes, in which case the taint will be removed. see: | ||
| // https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/#control-plane-node-isolation | ||
| ControlPlaneRole NodeRole = "control-plane" | ||
| // WorkerRole identifies a node that hosts a Kubernetes worker | ||
| WorkerRole NodeRole = "worker" | ||
| ) | ||
|
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| // Networking contains cluster wide network settings | ||
| type Networking struct { | ||
| // IPFamily is the network cluster model, currently it can be ipv4 or ipv6 | ||
| IPFamily ClusterIPFamily `yaml:"ipFamily,omitempty" json:"ipFamily,omitempty"` | ||
| // APIServerPort is the listen port on the host for the Kubernetes API Server | ||
| // Defaults to a random port on the host obtained by kind | ||
| // | ||
| // NOTE: if you set the special value of `-1` then the node backend | ||
| // (docker, podman...) will be left to pick the port instead. | ||
| // This is potentially useful for remote hosts, BUT it means when the container | ||
| // is restarted it will be randomized. Leave this unset to allow kind to pick it. | ||
| APIServerPort int32 `yaml:"apiServerPort,omitempty" json:"apiServerPort,omitempty"` | ||
| // APIServerAddress is the listen address on the host for the Kubernetes | ||
| // API Server. This should be an IP address. | ||
| // | ||
| // Defaults to 127.0.0.1 | ||
| APIServerAddress string `yaml:"apiServerAddress,omitempty" json:"apiServerAddress,omitempty"` | ||
| // PodSubnet is the CIDR used for pod IPs | ||
| // kind will select a default if unspecified | ||
| PodSubnet string `yaml:"podSubnet,omitempty" json:"podSubnet,omitempty"` | ||
| // ServiceSubnet is the CIDR used for services VIPs | ||
| // kind will select a default if unspecified for IPv6 | ||
| ServiceSubnet string `yaml:"serviceSubnet,omitempty" json:"serviceSubnet,omitempty"` | ||
| // If DisableDefaultCNI is true, kind will not install the default CNI setup. | ||
| // Instead the user should install their own CNI after creating the cluster. | ||
| DisableDefaultCNI bool `yaml:"disableDefaultCNI,omitempty" json:"disableDefaultCNI,omitempty"` | ||
| // KubeProxyMode defines if kube-proxy should operate in iptables or ipvs mode | ||
| // Defaults to 'iptables' mode | ||
| KubeProxyMode ProxyMode `yaml:"kubeProxyMode,omitempty" json:"kubeProxyMode,omitempty"` | ||
| // DNSSearch defines the DNS search domain to use for nodes. If not set, this will be inherited from the host. | ||
| DNSSearch *[]string `yaml:"dnsSearch,omitempty" json:"dnsSearch,omitempty"` | ||
| } | ||
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| // ClusterIPFamily defines cluster network IP family | ||
| type ClusterIPFamily string | ||
|
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| const ( | ||
| // IPv4Family sets ClusterIPFamily to ipv4 | ||
| IPv4Family ClusterIPFamily = "ipv4" | ||
| // IPv6Family sets ClusterIPFamily to ipv6 | ||
| IPv6Family ClusterIPFamily = "ipv6" | ||
| // DualStackFamily sets ClusterIPFamily to dual | ||
| DualStackFamily ClusterIPFamily = "dual" | ||
| ) | ||
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| // ProxyMode defines a proxy mode for kube-proxy | ||
| type ProxyMode string | ||
|
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| const ( | ||
| // IPTablesProxyMode sets ProxyMode to iptables | ||
| IPTablesProxyMode ProxyMode = "iptables" | ||
| // IPVSProxyMode sets ProxyMode to ipvs | ||
| IPVSProxyMode ProxyMode = "ipvs" | ||
| ) | ||
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| // PatchJSON6902 represents an inline kustomize json 6902 patch | ||
| // https://tools.ietf.org/html/rfc6902 | ||
| type PatchJSON6902 struct { | ||
| // these fields specify the patch target resource | ||
| Group string `yaml:"group" json:"group"` | ||
| Version string `yaml:"version" json:"version"` | ||
| Kind string `yaml:"kind" json:"kind"` | ||
| // Patch should contain the contents of the json patch as a string | ||
| Patch string `yaml:"patch" json:"patch"` | ||
| } | ||
|
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| /* | ||
| These types are from | ||
| https://github.com/kubernetes/kubernetes/blob/063e7ff358fdc8b0916e6f39beedc0d025734cb1/pkg/kubelet/apis/cri/runtime/v1alpha2/api.pb.go#L183 | ||
| */ | ||
|
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| // Mount specifies a host volume to mount into a container. | ||
| // This is a close copy of the upstream cri Mount type | ||
| // see: k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2 | ||
| // It additionally serializes the "propagation" field with the string enum | ||
| // names on disk as opposed to the int32 values, and the serialized field names | ||
| // have been made closer to core/v1 VolumeMount field names | ||
| // In yaml this looks like: | ||
| // | ||
| // containerPath: /foo | ||
| // hostPath: /bar | ||
| // readOnly: true | ||
| // selinuxRelabel: false | ||
| // propagation: None | ||
| // | ||
| // Propagation may be one of: None, HostToContainer, Bidirectional | ||
| type Mount struct { | ||
| // Path of the mount within the container. | ||
| ContainerPath string `yaml:"containerPath,omitempty" json:"containerPath,omitempty"` | ||
| // Path of the mount on the host. If the hostPath doesn't exist, then runtimes | ||
| // should report error. If the hostpath is a symbolic link, runtimes should | ||
| // follow the symlink and mount the real destination to container. | ||
| HostPath string `yaml:"hostPath,omitempty" json:"hostPath,omitempty"` | ||
| // If set, the mount is read-only. | ||
| Readonly bool `yaml:"readOnly,omitempty" json:"readOnly,omitempty"` | ||
| // If set, the mount needs SELinux relabeling. | ||
| SelinuxRelabel bool `yaml:"selinuxRelabel,omitempty" json:"selinuxRelabel,omitempty"` | ||
| // Requested propagation mode. | ||
| Propagation MountPropagation `yaml:"propagation,omitempty" json:"propagation,omitempty"` | ||
| } | ||
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| // PortMapping specifies a host port mapped into a container port. | ||
| // In yaml this looks like: | ||
| // | ||
| // containerPort: 80 | ||
| // hostPort: 8000 | ||
| // listenAddress: 127.0.0.1 | ||
| // protocol: TCP | ||
| type PortMapping struct { | ||
| // Port within the container. | ||
| ContainerPort int32 `yaml:"containerPort,omitempty" json:"containerPort,omitempty"` | ||
| // Port on the host. | ||
| // | ||
| // If unset, a random port will be selected. | ||
| // | ||
| // NOTE: if you set the special value of `-1` then the node backend | ||
| // (docker, podman...) will be left to pick the port instead. | ||
| // This is potentially useful for remote hosts, BUT it means when the container | ||
| // is restarted it will be randomized. Leave this unset to allow kind to pick it. | ||
| HostPort int32 `yaml:"hostPort,omitempty" json:"hostPort,omitempty"` | ||
| // TODO: add protocol (tcp/udp) and port-ranges | ||
| ListenAddress string `yaml:"listenAddress,omitempty" json:"listenAddress,omitempty"` | ||
| // Protocol (TCP/UDP/SCTP) | ||
| Protocol PortMappingProtocol `yaml:"protocol,omitempty" json:"protocol,omitempty"` | ||
| } | ||
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| // MountPropagation represents an "enum" for mount propagation options, | ||
| // see also Mount. | ||
| type MountPropagation string | ||
|
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| const ( | ||
| // MountPropagationNone specifies that no mount propagation | ||
| // ("private" in Linux terminology). | ||
| MountPropagationNone MountPropagation = "None" | ||
| // MountPropagationHostToContainer specifies that mounts get propagated | ||
| // from the host to the container ("rslave" in Linux). | ||
| MountPropagationHostToContainer MountPropagation = "HostToContainer" | ||
| // MountPropagationBidirectional specifies that mounts get propagated from | ||
| // the host to the container and from the container to the host | ||
| // ("rshared" in Linux). | ||
| MountPropagationBidirectional MountPropagation = "Bidirectional" | ||
| ) | ||
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| // PortMappingProtocol represents an "enum" for port mapping protocol options, | ||
| // see also PortMapping. | ||
| type PortMappingProtocol string | ||
|
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| const ( | ||
| // PortMappingProtocolTCP specifies TCP protocol | ||
| PortMappingProtocolTCP PortMappingProtocol = "TCP" | ||
| // PortMappingProtocolUDP specifies UDP protocol | ||
| PortMappingProtocolUDP PortMappingProtocol = "UDP" | ||
| // PortMappingProtocolSCTP specifies SCTP protocol | ||
| PortMappingProtocolSCTP PortMappingProtocol = "SCTP" | ||
| ) |
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