package metadata import ( "context" "fmt" "net" "strconv" "github.com/edgelesssys/constellation/internal/constants" "github.com/edgelesssys/constellation/internal/role" ) // InstanceMetadata describes metadata of a peer. type InstanceMetadata struct { Name string ProviderID string Role role.Role // VPCIP is the primary IP address of the instance in the VPC. VPCIP string // PublicIP is the primary public IP of the instance, if available, empty string otherwise. PublicIP string AliasIPRanges []string // SSHKeys maps usernames to ssh public keys. SSHKeys map[string][]string } type InstanceSelfer interface { // Self retrieves the current instance. Self(ctx context.Context) (InstanceMetadata, error) } type InstanceLister interface { // List retrieves all instances belonging to the current constellation. List(ctx context.Context) ([]InstanceMetadata, error) } // JoinServiceEndpoints returns the list of endpoints for the join service, which are running on the control plane nodes. func JoinServiceEndpoints(ctx context.Context, lister InstanceLister) ([]string, error) { instances, err := lister.List(ctx) if err != nil { return nil, fmt.Errorf("retrieving instances list from cloud provider: %w", err) } joinEndpoints := []string{} for _, instance := range instances { if instance.Role == role.ControlPlane { if instance.VPCIP != "" { joinEndpoints = append(joinEndpoints, net.JoinHostPort(instance.VPCIP, strconv.Itoa(constants.JoinServiceNodePort))) } } } return joinEndpoints, nil }