package nodestate import ( "fmt" "github.com/edgelesssys/constellation/internal/file" "github.com/edgelesssys/constellation/internal/role" ) const nodeStatePath = "/run/state/constellation/node_state.json" // NodeState is the state of a constellation node that is required to recover from a reboot. // Can be persisted to disk and reloaded later. type NodeState struct { Role role.Role MeasurementSalt []byte } // FromFile reads a NodeState from disk. func FromFile(fileHandler file.Handler) (*NodeState, error) { nodeState := &NodeState{} if err := fileHandler.ReadJSON(nodeStatePath, nodeState); err != nil { return nil, fmt.Errorf("loading node state: %w", err) } return nodeState, nil } // ToFile writes a NodeState to disk. func (nodeState *NodeState) ToFile(fileHandler file.Handler) error { return fileHandler.WriteJSON(nodeStatePath, nodeState, file.OptMkdirAll) }