From fe490b4d63871f91c17ad72afef38a3227c8b4d3 Mon Sep 17 00:00:00 2001 From: jikui Date: Fri, 5 Nov 2021 12:06:11 +0800 Subject: [PATCH] kata-runtime: truncate the log.json file before kata-runtime subcommand executed Signed-off-by: jikui --- src/runtime/cli/main.go | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/runtime/cli/main.go b/src/runtime/cli/main.go index 27757c0..7c77764 100644 --- a/src/runtime/cli/main.go +++ b/src/runtime/cli/main.go @@ -252,6 +252,14 @@ func beforeSubcommands(c *cli.Context) error { ignoreConfigLogs = true } else { if path := c.GlobalString("log"); path != "" { + // since we have redirect the kata-runtime log to /var/log/messages, and avoid the + // path of log.json file to be large in the tmpfs, so we truncate the log.json file + // every time before subcommand is executed. + if path != "/dev/null" && katautils.FileExists(path) { + if err := os.Truncate(path, 0); err != nil { + return err + } + } f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND|os.O_SYNC, 0640) if err != nil { return err -- 2.25.1