mirror of
https://github.com/Control-D-Inc/ctrld.git
synced 2026-10-12 01:58:46 +02:00
Anthony Wong
8934e09428
ctrld keeps a second log file, ctrld-journal.log, next to ctrld.log. The journal holds all warnings and errors and each event with the field journal=true. It stays on disk after a start of the service and after a self-upgrade. Each log file starts with a Log header line. Each log send upload starts with the same line, made at send time, and has a limit of about 16 MB.
46 lines
1.7 KiB
Go
46 lines
1.7 KiB
Go
package cli
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import (
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"github.com/Control-D-Inc/ctrld"
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)
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// journalLogFileName is the journal file next to the debug log in the ctrld
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// home directory.
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const journalLogFileName = "ctrld-journal.log"
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// logBudgets splits the disk space by platform. A router keeps the 10 MB total
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// that QA measured on an EdgeRouter-X, because its flash is small. A desktop
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// holds more, so a log covers more days.
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func logBudgets(isRouter bool) (debug, journal logBudget) {
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if isRouter {
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return logBudget{maxSize: 5 << 20, backups: 1}, logBudget{maxSize: 1 << 20, backups: 1}
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}
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return logBudget{maxSize: 10 << 20, backups: 4}, logBudget{maxSize: 2 << 20, backups: 2}
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}
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const (
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// logMaxSizeMBLimit and logMaxBackupsLimit bound the two keys. The log
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// file opens before ctrld validates its configuration, so a key outside
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// these bounds reaches this code: a size near the largest integer never
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// rotates, and a count of one million backups renames one million files.
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// The validation rules are the first line of defense, and these bounds
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// are the second.
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logMaxSizeMBLimit = 1024
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logMaxBackupsLimit = 64
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)
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// debugLogBudget starts from the platform default, so a router keeps its small
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// total until an operator asks for more. The two keys size the debug stream
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// only. The journal budget stays fixed. A key outside its bounds keeps the
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// default.
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func debugLogBudget(svc *ctrld.ServiceConfig, isRouter bool) logBudget {
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budget, _ := logBudgets(isRouter)
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if mb := svc.LogMaxSizeMB; mb >= 1 && mb <= logMaxSizeMBLimit {
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budget.maxSize = int64(mb) << 20
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}
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if count := svc.LogMaxBackups; count != nil && *count >= 0 && *count <= logMaxBackupsLimit {
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budget.backups = *count
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}
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return budget
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}
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