49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package libcontainer
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import (
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"encoding/json"
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"os"
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"path/filepath"
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)
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// State represents a running container's state
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type State struct {
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// InitPid is the init process id in the parent namespace
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InitPid int `json:"init_pid,omitempty"`
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// InitStartTime is the init process start time
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InitStartTime string `json:"init_start_time,omitempty"`
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}
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// SaveState writes the container's runtime state to a state.json file
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// in the specified path
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func SaveState(basePath string, state *State) error {
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f, err := os.Create(filepath.Join(basePath, "state.json"))
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if err != nil {
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return err
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}
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defer f.Close()
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return json.NewEncoder(f).Encode(state)
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}
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// GetState reads the state.json file for a running container
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func GetState(basePath string) (*State, error) {
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f, err := os.Open(filepath.Join(basePath, "state.json"))
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if err != nil {
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return nil, err
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}
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defer f.Close()
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var state *State
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if err := json.NewDecoder(f).Decode(&state); err != nil {
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return nil, err
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}
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return state, nil
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}
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// DeleteState deletes the state.json file
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func DeleteState(basePath string) error {
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return os.Remove(filepath.Join(basePath, "state.json"))
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}
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