433 lines
15 KiB
Go
433 lines
15 KiB
Go
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package godo
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import (
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"bytes"
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"context"
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"encoding"
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"fmt"
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"net/http"
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"strings"
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"time"
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)
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const (
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kubernetesBasePath = "/v2/kubernetes"
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kubernetesClustersPath = kubernetesBasePath + "/clusters"
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kubernetesOptionsPath = kubernetesBasePath + "/options"
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)
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// KubernetesService is an interface for interfacing with the kubernetes endpoints
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// of the DigitalOcean API.
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// See: https://developers.digitalocean.com/documentation/v2#kubernetes
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type KubernetesService interface {
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Create(context.Context, *KubernetesClusterCreateRequest) (*KubernetesCluster, *Response, error)
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Get(context.Context, string) (*KubernetesCluster, *Response, error)
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GetKubeConfig(context.Context, string) (*KubernetesClusterConfig, *Response, error)
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List(context.Context, *ListOptions) ([]*KubernetesCluster, *Response, error)
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Update(context.Context, string, *KubernetesClusterUpdateRequest) (*KubernetesCluster, *Response, error)
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Delete(context.Context, string) (*Response, error)
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CreateNodePool(ctx context.Context, clusterID string, req *KubernetesNodePoolCreateRequest) (*KubernetesNodePool, *Response, error)
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GetNodePool(ctx context.Context, clusterID, poolID string) (*KubernetesNodePool, *Response, error)
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ListNodePools(ctx context.Context, clusterID string, opts *ListOptions) ([]*KubernetesNodePool, *Response, error)
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UpdateNodePool(ctx context.Context, clusterID, poolID string, req *KubernetesNodePoolUpdateRequest) (*KubernetesNodePool, *Response, error)
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RecycleNodePoolNodes(ctx context.Context, clusterID, poolID string, req *KubernetesNodePoolRecycleNodesRequest) (*Response, error)
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DeleteNodePool(ctx context.Context, clusterID, poolID string) (*Response, error)
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GetOptions(context.Context) (*KubernetesOptions, *Response, error)
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}
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var _ KubernetesService = &KubernetesServiceOp{}
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// KubernetesServiceOp handles communication with Kubernetes methods of the DigitalOcean API.
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type KubernetesServiceOp struct {
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client *Client
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}
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// KubernetesClusterCreateRequest represents a request to create a Kubernetes cluster.
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type KubernetesClusterCreateRequest struct {
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Name string `json:"name,omitempty"`
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RegionSlug string `json:"region,omitempty"`
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VersionSlug string `json:"version,omitempty"`
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Tags []string `json:"tags,omitempty"`
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NodePools []*KubernetesNodePoolCreateRequest `json:"node_pools,omitempty"`
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}
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// KubernetesClusterUpdateRequest represents a request to update a Kubernetes cluster.
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type KubernetesClusterUpdateRequest struct {
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Name string `json:"name,omitempty"`
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Tags []string `json:"tags,omitempty"`
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}
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// KubernetesNodePoolCreateRequest represents a request to create a node pool for a
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// Kubernetes cluster.
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type KubernetesNodePoolCreateRequest struct {
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Name string `json:"name,omitempty"`
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Size string `json:"size,omitempty"`
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Count int `json:"count,omitempty"`
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Tags []string `json:"tags,omitempty"`
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}
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// KubernetesNodePoolUpdateRequest represents a request to update a node pool in a
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// Kubernetes cluster.
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type KubernetesNodePoolUpdateRequest struct {
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Name string `json:"name,omitempty"`
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Count int `json:"count,omitempty"`
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Tags []string `json:"tags,omitempty"`
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}
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// KubernetesNodePoolRecycleNodesRequest represents a request to recycle a set of
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// nodes in a node pool. This will recycle the nodes by ID.
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type KubernetesNodePoolRecycleNodesRequest struct {
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Nodes []string `json:"nodes,omitempty"`
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}
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// KubernetesCluster represents a Kubernetes cluster.
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type KubernetesCluster struct {
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ID string `json:"id,omitempty"`
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Name string `json:"name,omitempty"`
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RegionSlug string `json:"region,omitempty"`
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VersionSlug string `json:"version,omitempty"`
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ClusterSubnet string `json:"cluster_subnet,omitempty"`
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ServiceSubnet string `json:"service_subnet,omitempty"`
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IPv4 string `json:"ipv4,omitempty"`
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Endpoint string `json:"endpoint,omitempty"`
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Tags []string `json:"tags,omitempty"`
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NodePools []*KubernetesNodePool `json:"node_pools,omitempty"`
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Status *KubernetesClusterStatus `json:"status,omitempty"`
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CreatedAt time.Time `json:"created_at,omitempty"`
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UpdatedAt time.Time `json:"updated_at,omitempty"`
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}
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// Possible states for a cluster.
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const (
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KubernetesClusterStatusProvisioning = KubernetesClusterStatusState("provisioning")
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KubernetesClusterStatusRunning = KubernetesClusterStatusState("running")
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KubernetesClusterStatusDegraded = KubernetesClusterStatusState("degraded")
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KubernetesClusterStatusError = KubernetesClusterStatusState("error")
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KubernetesClusterStatusDeleted = KubernetesClusterStatusState("deleted")
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KubernetesClusterStatusInvalid = KubernetesClusterStatusState("invalid")
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)
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// KubernetesClusterStatusState represents states for a cluster.
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type KubernetesClusterStatusState string
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var _ encoding.TextUnmarshaler = (*KubernetesClusterStatusState)(nil)
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// UnmarshalText unmarshals the state.
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func (s *KubernetesClusterStatusState) UnmarshalText(text []byte) error {
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switch KubernetesClusterStatusState(strings.ToLower(string(text))) {
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case KubernetesClusterStatusProvisioning:
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*s = KubernetesClusterStatusProvisioning
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case KubernetesClusterStatusRunning:
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*s = KubernetesClusterStatusRunning
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case KubernetesClusterStatusDegraded:
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*s = KubernetesClusterStatusDegraded
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case KubernetesClusterStatusError:
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*s = KubernetesClusterStatusError
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case KubernetesClusterStatusDeleted:
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*s = KubernetesClusterStatusDeleted
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case "", KubernetesClusterStatusInvalid:
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*s = KubernetesClusterStatusInvalid
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default:
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return fmt.Errorf("unknown cluster state %q", string(text))
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}
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return nil
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}
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// KubernetesClusterStatus describes the status of a cluster.
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type KubernetesClusterStatus struct {
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State KubernetesClusterStatusState `json:"state,omitempty"`
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Message string `json:"message,omitempty"`
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}
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// KubernetesNodePool represents a node pool in a Kubernetes cluster.
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type KubernetesNodePool struct {
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ID string `json:"id,omitempty"`
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Name string `json:"name,omitempty"`
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Size string `json:"size,omitempty"`
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Count int `json:"count,omitempty"`
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Tags []string `json:"tags,omitempty"`
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Nodes []*KubernetesNode `json:"nodes,omitempty"`
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}
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// KubernetesNode represents a Node in a node pool in a Kubernetes cluster.
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type KubernetesNode struct {
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ID string `json:"id,omitempty"`
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Name string `json:"name,omitempty"`
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Status *KubernetesNodeStatus `json:"status,omitempty"`
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CreatedAt time.Time `json:"created_at,omitempty"`
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UpdatedAt time.Time `json:"updated_at,omitempty"`
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}
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// KubernetesNodeStatus represents the status of a particular Node in a Kubernetes cluster.
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type KubernetesNodeStatus struct {
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State string `json:"state,omitempty"`
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Message string `json:"message,omitempty"`
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}
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// KubernetesOptions represents options available for creating Kubernetes clusters.
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type KubernetesOptions struct {
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Versions []*KubernetesVersion `json:"versions,omitempty"`
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Regions []*KubernetesRegion `json:"regions,omitempty"`
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Sizes []*KubernetesNodeSize `json:"sizes,omitempty"`
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}
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// KubernetesVersion is a DigitalOcean Kubernetes release.
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type KubernetesVersion struct {
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Slug string `json:"slug,omitempty"`
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KubernetesVersion string `json:"kubernetes_version,omitempty"`
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}
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// KubernetesNodeSize is a node sizes supported for Kubernetes clusters.
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type KubernetesNodeSize struct {
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Name string `json:"name"`
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Slug string `json:"slug"`
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}
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// KubernetesRegion is a region usable by Kubernetes clusters.
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type KubernetesRegion struct {
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Name string `json:"name"`
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Slug string `json:"slug"`
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}
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type kubernetesClustersRoot struct {
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Clusters []*KubernetesCluster `json:"kubernetes_clusters,omitempty"`
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Links *Links `json:"links,omitempty"`
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}
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type kubernetesClusterRoot struct {
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Cluster *KubernetesCluster `json:"kubernetes_cluster,omitempty"`
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}
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type kubernetesNodePoolRoot struct {
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NodePool *KubernetesNodePool `json:"node_pool,omitempty"`
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}
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type kubernetesNodePoolsRoot struct {
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NodePools []*KubernetesNodePool `json:"node_pools,omitempty"`
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Links *Links `json:"links,omitempty"`
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}
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// Get retrieves the details of a Kubernetes cluster.
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func (svc *KubernetesServiceOp) Get(ctx context.Context, clusterID string) (*KubernetesCluster, *Response, error) {
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path := fmt.Sprintf("%s/%s", kubernetesClustersPath, clusterID)
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req, err := svc.client.NewRequest(ctx, http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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root := new(kubernetesClusterRoot)
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resp, err := svc.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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return root.Cluster, resp, nil
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}
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// Create creates a Kubernetes cluster.
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func (svc *KubernetesServiceOp) Create(ctx context.Context, create *KubernetesClusterCreateRequest) (*KubernetesCluster, *Response, error) {
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path := kubernetesClustersPath
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req, err := svc.client.NewRequest(ctx, http.MethodPost, path, create)
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if err != nil {
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return nil, nil, err
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}
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root := new(kubernetesClusterRoot)
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resp, err := svc.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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return root.Cluster, resp, nil
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}
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// Delete deletes a Kubernetes cluster. There is no way to recover a cluster
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// once it has been destroyed.
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func (svc *KubernetesServiceOp) Delete(ctx context.Context, clusterID string) (*Response, error) {
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path := fmt.Sprintf("%s/%s", kubernetesClustersPath, clusterID)
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req, err := svc.client.NewRequest(ctx, http.MethodDelete, path, nil)
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if err != nil {
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return nil, err
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}
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resp, err := svc.client.Do(ctx, req, nil)
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if err != nil {
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return resp, err
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}
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return resp, nil
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}
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// List returns a list of the Kubernetes clusters visible with the caller's API token.
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func (svc *KubernetesServiceOp) List(ctx context.Context, opts *ListOptions) ([]*KubernetesCluster, *Response, error) {
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path := kubernetesClustersPath
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path, err := addOptions(path, opts)
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if err != nil {
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return nil, nil, err
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}
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req, err := svc.client.NewRequest(ctx, http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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root := new(kubernetesClustersRoot)
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resp, err := svc.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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return root.Clusters, resp, nil
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}
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// KubernetesClusterConfig is the content of a Kubernetes config file, which can be
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// used to interact with your Kubernetes cluster using `kubectl`.
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// See: https://kubernetes.io/docs/tasks/tools/install-kubectl/
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type KubernetesClusterConfig struct {
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KubeconfigYAML []byte
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}
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// GetKubeConfig returns a Kubernetes config file for the specified cluster.
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func (svc *KubernetesServiceOp) GetKubeConfig(ctx context.Context, clusterID string) (*KubernetesClusterConfig, *Response, error) {
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path := fmt.Sprintf("%s/%s/kubeconfig", kubernetesClustersPath, clusterID)
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req, err := svc.client.NewRequest(ctx, http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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configBytes := bytes.NewBuffer(nil)
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resp, err := svc.client.Do(ctx, req, configBytes)
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if err != nil {
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return nil, resp, err
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}
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res := &KubernetesClusterConfig{
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KubeconfigYAML: configBytes.Bytes(),
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}
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return res, resp, nil
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}
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// Update updates a Kubernetes cluster's properties.
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func (svc *KubernetesServiceOp) Update(ctx context.Context, clusterID string, update *KubernetesClusterUpdateRequest) (*KubernetesCluster, *Response, error) {
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path := fmt.Sprintf("%s/%s", kubernetesClustersPath, clusterID)
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req, err := svc.client.NewRequest(ctx, http.MethodPut, path, update)
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if err != nil {
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return nil, nil, err
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}
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root := new(kubernetesClusterRoot)
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resp, err := svc.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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return root.Cluster, resp, nil
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}
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// CreateNodePool creates a new node pool in an existing Kubernetes cluster.
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func (svc *KubernetesServiceOp) CreateNodePool(ctx context.Context, clusterID string, create *KubernetesNodePoolCreateRequest) (*KubernetesNodePool, *Response, error) {
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path := fmt.Sprintf("%s/%s/node_pools", kubernetesClustersPath, clusterID)
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req, err := svc.client.NewRequest(ctx, http.MethodPost, path, create)
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if err != nil {
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return nil, nil, err
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}
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root := new(kubernetesNodePoolRoot)
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resp, err := svc.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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return root.NodePool, resp, nil
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}
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// GetNodePool retrieves an existing node pool in a Kubernetes cluster.
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func (svc *KubernetesServiceOp) GetNodePool(ctx context.Context, clusterID, poolID string) (*KubernetesNodePool, *Response, error) {
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path := fmt.Sprintf("%s/%s/node_pools/%s", kubernetesClustersPath, clusterID, poolID)
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req, err := svc.client.NewRequest(ctx, http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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root := new(kubernetesNodePoolRoot)
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resp, err := svc.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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return root.NodePool, resp, nil
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}
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// ListNodePools lists all the node pools found in a Kubernetes cluster.
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func (svc *KubernetesServiceOp) ListNodePools(ctx context.Context, clusterID string, opts *ListOptions) ([]*KubernetesNodePool, *Response, error) {
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path := fmt.Sprintf("%s/%s/node_pools", kubernetesClustersPath, clusterID)
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path, err := addOptions(path, opts)
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if err != nil {
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return nil, nil, err
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}
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req, err := svc.client.NewRequest(ctx, http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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||
|
|
root := new(kubernetesNodePoolsRoot)
|
||
|
|
resp, err := svc.client.Do(ctx, req, root)
|
||
|
|
if err != nil {
|
||
|
|
return nil, resp, err
|
||
|
|
}
|
||
|
|
return root.NodePools, resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// UpdateNodePool updates the details of an existing node pool.
|
||
|
|
func (svc *KubernetesServiceOp) UpdateNodePool(ctx context.Context, clusterID, poolID string, update *KubernetesNodePoolUpdateRequest) (*KubernetesNodePool, *Response, error) {
|
||
|
|
path := fmt.Sprintf("%s/%s/node_pools/%s", kubernetesClustersPath, clusterID, poolID)
|
||
|
|
req, err := svc.client.NewRequest(ctx, http.MethodPut, path, update)
|
||
|
|
if err != nil {
|
||
|
|
return nil, nil, err
|
||
|
|
}
|
||
|
|
root := new(kubernetesNodePoolRoot)
|
||
|
|
resp, err := svc.client.Do(ctx, req, root)
|
||
|
|
if err != nil {
|
||
|
|
return nil, resp, err
|
||
|
|
}
|
||
|
|
return root.NodePool, resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// RecycleNodePoolNodes schedules nodes in a node pool for recycling.
|
||
|
|
func (svc *KubernetesServiceOp) RecycleNodePoolNodes(ctx context.Context, clusterID, poolID string, recycle *KubernetesNodePoolRecycleNodesRequest) (*Response, error) {
|
||
|
|
path := fmt.Sprintf("%s/%s/node_pools/%s/recycle", kubernetesClustersPath, clusterID, poolID)
|
||
|
|
req, err := svc.client.NewRequest(ctx, http.MethodPost, path, recycle)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
resp, err := svc.client.Do(ctx, req, nil)
|
||
|
|
if err != nil {
|
||
|
|
return resp, err
|
||
|
|
}
|
||
|
|
return resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// DeleteNodePool deletes a node pool, and subsequently all the nodes in that pool.
|
||
|
|
func (svc *KubernetesServiceOp) DeleteNodePool(ctx context.Context, clusterID, poolID string) (*Response, error) {
|
||
|
|
path := fmt.Sprintf("%s/%s/node_pools/%s", kubernetesClustersPath, clusterID, poolID)
|
||
|
|
req, err := svc.client.NewRequest(ctx, http.MethodDelete, path, nil)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
resp, err := svc.client.Do(ctx, req, nil)
|
||
|
|
if err != nil {
|
||
|
|
return resp, err
|
||
|
|
}
|
||
|
|
return resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
type kubernetesOptionsRoot struct {
|
||
|
|
Options *KubernetesOptions `json:"options,omitempty"`
|
||
|
|
Links *Links `json:"links,omitempty"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetOptions returns options about the Kubernetes service, such as the versions available for
|
||
|
|
// cluster creation.
|
||
|
|
func (svc *KubernetesServiceOp) GetOptions(ctx context.Context) (*KubernetesOptions, *Response, error) {
|
||
|
|
path := kubernetesOptionsPath
|
||
|
|
req, err := svc.client.NewRequest(ctx, http.MethodGet, path, nil)
|
||
|
|
if err != nil {
|
||
|
|
return nil, nil, err
|
||
|
|
}
|
||
|
|
root := new(kubernetesOptionsRoot)
|
||
|
|
resp, err := svc.client.Do(ctx, req, root)
|
||
|
|
if err != nil {
|
||
|
|
return nil, resp, err
|
||
|
|
}
|
||
|
|
return root.Options, resp, nil
|
||
|
|
}
|