65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
package offsite
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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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"time"
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)
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// DefaultStatusFile is where `felis offsite sync` records its last run; the
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// watchdog and `felis offsite status` read it.
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const DefaultStatusFile = "/var/lib/felis/offsite/status.json"
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// StaleAfter is how long the sync may go without a clean run before the
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// watchdog mails the owners. The timer runs hourly, so this rides out a
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// provider's bad morning, and still leaves a day's database bundle uncopied
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// for at most half a day.
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const StaleAfter = 12 * time.Hour
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// Status is the record of the last run.
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type Status struct {
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LastAttempt time.Time `json:"last_attempt"`
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// LastSuccess is the last run in which every step succeeded.
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LastSuccess time.Time `json:"last_success,omitzero"`
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LastError string `json:"last_error,omitempty"`
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Endpoint string `json:"endpoint"`
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Bucket string `json:"bucket"`
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Prefix string `json:"prefix,omitempty"`
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KeyID string `json:"key_id"`
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Result Result `json:"result"`
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}
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// ReadStatus reads the status file. A missing file is (nil, nil): no sync has
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// run yet.
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func ReadStatus(p string) (*Status, error) {
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raw, err := os.ReadFile(p)
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if os.IsNotExist(err) {
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return nil, nil
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}
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if err != nil {
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return nil, err
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}
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var st Status
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if err := json.Unmarshal(raw, &st); err != nil {
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return nil, err
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}
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return &st, nil
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}
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// WriteStatus replaces the status file atomically.
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func WriteStatus(p string, st Status) error {
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if err := os.MkdirAll(filepath.Dir(p), 0o700); err != nil {
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return err
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}
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raw, err := json.MarshalIndent(st, "", " ")
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if err != nil {
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return err
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}
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tmp := p + ".tmp"
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if err := os.WriteFile(tmp, append(raw, '\n'), 0o600); err != nil {
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return err
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}
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return os.Rename(tmp, p)
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}
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