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lxd_cluster.go
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lxd_cluster.go
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package lxd
import (
"fmt"
"github.com/canonical/lxd/shared/api"
)
// GetCluster returns information about a cluster
//
// If this client is not trusted, the password must be supplied.
func (r *ProtocolLXD) GetCluster() (*api.Cluster, string, error) {
err := r.CheckExtension("clustering")
if err != nil {
return nil, "", err
}
cluster := &api.Cluster{}
etag, err := r.queryStruct("GET", "/cluster", nil, "", &cluster)
if err != nil {
return nil, "", err
}
return cluster, etag, nil
}
// UpdateCluster requests to bootstrap a new cluster or join an existing one.
func (r *ProtocolLXD) UpdateCluster(cluster api.ClusterPut, ETag string) (Operation, error) {
err := r.CheckExtension("clustering")
if err != nil {
return nil, err
}
if cluster.ServerAddress != "" || cluster.ClusterPassword != "" || len(cluster.MemberConfig) > 0 {
err := r.CheckExtension("clustering_join")
if err != nil {
return nil, err
}
}
op, _, err := r.queryOperation("PUT", "/cluster", cluster, "", true)
if err != nil {
return nil, err
}
return op, nil
}
// DeleteClusterMember makes the given member leave the cluster (gracefully or not,
// depending on the force flag).
func (r *ProtocolLXD) DeleteClusterMember(name string, force bool) error {
err := r.CheckExtension("clustering")
if err != nil {
return err
}
params := ""
if force {
params += "?force=1"
}
_, _, err = r.query("DELETE", fmt.Sprintf("/cluster/members/%s%s", name, params), nil, "")
if err != nil {
return err
}
return nil
}
// GetClusterMemberNames returns the URLs of the current members in the cluster.
func (r *ProtocolLXD) GetClusterMemberNames() ([]string, error) {
err := r.CheckExtension("clustering")
if err != nil {
return nil, err
}
// Fetch the raw URL values.
urls := []string{}
baseURL := "/cluster/members"
_, err = r.queryStruct("GET", baseURL, nil, "", &urls)
if err != nil {
return nil, err
}
// Parse it.
return urlsToResourceNames(baseURL, urls...)
}
// GetClusterMembers returns the current members of the cluster.
func (r *ProtocolLXD) GetClusterMembers() ([]api.ClusterMember, error) {
err := r.CheckExtension("clustering")
if err != nil {
return nil, err
}
members := []api.ClusterMember{}
_, err = r.queryStruct("GET", "/cluster/members?recursion=1", nil, "", &members)
if err != nil {
return nil, err
}
return members, nil
}
// GetClusterMember returns information about the given member.
func (r *ProtocolLXD) GetClusterMember(name string) (*api.ClusterMember, string, error) {
err := r.CheckExtension("clustering")
if err != nil {
return nil, "", err
}
member := api.ClusterMember{}
etag, err := r.queryStruct("GET", fmt.Sprintf("/cluster/members/%s", name), nil, "", &member)
if err != nil {
return nil, "", err
}
return &member, etag, nil
}
// UpdateClusterMember updates information about the given member.
func (r *ProtocolLXD) UpdateClusterMember(name string, member api.ClusterMemberPut, ETag string) error {
err := r.CheckExtension("clustering_edit_roles")
if err != nil {
return err
}
if member.FailureDomain != "" {
err := r.CheckExtension("clustering_failure_domains")
if err != nil {
return err
}
}
// Send the request
_, _, err = r.query("PUT", fmt.Sprintf("/cluster/members/%s", name), member, ETag)
if err != nil {
return err
}
return nil
}
// RenameClusterMember changes the name of an existing member.
func (r *ProtocolLXD) RenameClusterMember(name string, member api.ClusterMemberPost) error {
err := r.CheckExtension("clustering")
if err != nil {
return err
}
_, _, err = r.query("POST", fmt.Sprintf("/cluster/members/%s", name), member, "")
if err != nil {
return err
}
return nil
}
// CreateClusterMember generates a join token to add a cluster member.
func (r *ProtocolLXD) CreateClusterMember(member api.ClusterMembersPost) (Operation, error) {
err := r.CheckExtension("clustering_join_token")
if err != nil {
return nil, err
}
op, _, err := r.queryOperation("POST", "/cluster/members", member, "", true)
if err != nil {
return nil, err
}
return op, nil
}
// UpdateClusterCertificate updates the cluster certificate for every node in the cluster.
func (r *ProtocolLXD) UpdateClusterCertificate(certs api.ClusterCertificatePut, ETag string) error {
err := r.CheckExtension("clustering_update_cert")
if err != nil {
return err
}
_, _, err = r.query("PUT", "/cluster/certificate", certs, ETag)
if err != nil {
return err
}
return nil
}
// GetClusterMemberState gets state information about a cluster member.
func (r *ProtocolLXD) GetClusterMemberState(name string) (*api.ClusterMemberState, string, error) {
err := r.CheckExtension("cluster_member_state")
if err != nil {
return nil, "", err
}
state := api.ClusterMemberState{}
u := api.NewURL().Path("cluster", "members", name, "state")
etag, err := r.queryStruct("GET", u.String(), nil, "", &state)
if err != nil {
return nil, "", err
}
return &state, etag, err
}
// UpdateClusterMemberState evacuates or restores a cluster member.
func (r *ProtocolLXD) UpdateClusterMemberState(name string, state api.ClusterMemberStatePost) (Operation, error) {
err := r.CheckExtension("clustering_evacuation")
if err != nil {
return nil, err
}
op, _, err := r.queryOperation("POST", fmt.Sprintf("/cluster/members/%s/state", name), state, "", true)
if err != nil {
return nil, err
}
return op, nil
}
// GetClusterGroups returns the cluster groups.
func (r *ProtocolLXD) GetClusterGroups() ([]api.ClusterGroup, error) {
err := r.CheckExtension("clustering_groups")
if err != nil {
return nil, err
}
groups := []api.ClusterGroup{}
_, err = r.queryStruct("GET", "/cluster/groups?recursion=1", nil, "", &groups)
if err != nil {
return nil, err
}
return groups, nil
}
// GetClusterGroupNames returns the cluster group names.
func (r *ProtocolLXD) GetClusterGroupNames() ([]string, error) {
err := r.CheckExtension("clustering_groups")
if err != nil {
return nil, err
}
urls := []string{}
_, err = r.queryStruct("GET", "/cluster/groups", nil, "", &urls)
if err != nil {
return nil, err
}
// Parse it.
return urlsToResourceNames("/1.0/cluster/groups", urls...)
}
// RenameClusterGroup changes the name of an existing cluster group.
func (r *ProtocolLXD) RenameClusterGroup(name string, group api.ClusterGroupPost) error {
err := r.CheckExtension("clustering_groups")
if err != nil {
return err
}
_, _, err = r.query("POST", fmt.Sprintf("/cluster/groups/%s", name), group, "")
if err != nil {
return err
}
return nil
}
// CreateClusterGroup creates a new cluster group.
func (r *ProtocolLXD) CreateClusterGroup(group api.ClusterGroupsPost) error {
err := r.CheckExtension("clustering_groups")
if err != nil {
return err
}
_, _, err = r.query("POST", "/cluster/groups", group, "")
if err != nil {
return err
}
return nil
}
// DeleteClusterGroup deletes an existing cluster group.
func (r *ProtocolLXD) DeleteClusterGroup(name string) error {
err := r.CheckExtension("clustering_groups")
if err != nil {
return err
}
_, _, err = r.query("DELETE", fmt.Sprintf("/cluster/groups/%s", name), nil, "")
if err != nil {
return err
}
return nil
}
// UpdateClusterGroup updates information about the given cluster group.
func (r *ProtocolLXD) UpdateClusterGroup(name string, group api.ClusterGroupPut, ETag string) error {
err := r.CheckExtension("clustering_groups")
if err != nil {
return err
}
// Send the request
_, _, err = r.query("PUT", fmt.Sprintf("/cluster/groups/%s", name), group, ETag)
if err != nil {
return err
}
return nil
}
// GetClusterGroup returns information about the given cluster group.
func (r *ProtocolLXD) GetClusterGroup(name string) (*api.ClusterGroup, string, error) {
err := r.CheckExtension("clustering_groups")
if err != nil {
return nil, "", err
}
group := api.ClusterGroup{}
etag, err := r.queryStruct("GET", fmt.Sprintf("/cluster/groups/%s", name), nil, "", &group)
if err != nil {
return nil, "", err
}
return &group, etag, nil
}