From 666f555aa52b9f82da9d6ca64cf11e4f5e1e78e8 Mon Sep 17 00:00:00 2001 From: Paul Holzinger Date: Tue, 15 Jun 2021 11:05:00 +0200 Subject: Fix resize race with podman exec -it When starting a process with `podman exec -it` the terminal is resized after the process is started. To fix this allow exec start to accept the terminal height and width as parameter and let it resize right before the process is started. Fixes #10560 Signed-off-by: Paul Holzinger --- pkg/bindings/containers/attach.go | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) (limited to 'pkg/bindings') diff --git a/pkg/bindings/containers/attach.go b/pkg/bindings/containers/attach.go index adef1e7c8..cc12c8ab7 100644 --- a/pkg/bindings/containers/attach.go +++ b/pkg/bindings/containers/attach.go @@ -343,7 +343,7 @@ func attachHandleResize(ctx, winCtx context.Context, winChange chan os.Signal, i resizeErr = ResizeContainerTTY(ctx, id, new(ResizeTTYOptions).WithHeight(h).WithWidth(w)) } if resizeErr != nil { - logrus.Warnf("failed to resize TTY: %v", resizeErr) + logrus.Infof("failed to resize TTY: %v", resizeErr) } } @@ -408,6 +408,17 @@ func ExecStartAndAttach(ctx context.Context, sessionID string, options *ExecStar // If we are in TTY mode, we need to set raw mode for the terminal. // TODO: Share all of this with Attach() for containers. needTTY := terminalFile != nil && terminal.IsTerminal(int(terminalFile.Fd())) && isTerm + + body := struct { + Detach bool `json:"Detach"` + TTY bool `json:"Tty"` + Height uint16 `json:"h"` + Width uint16 `json:"w"` + }{ + Detach: false, + TTY: needTTY, + } + if needTTY { state, err := setRawTerminal(terminalFile) if err != nil { @@ -419,13 +430,14 @@ func ExecStartAndAttach(ctx context.Context, sessionID string, options *ExecStar } logrus.SetFormatter(&logrus.TextFormatter{}) }() + w, h, err := terminal.GetSize(int(terminalFile.Fd())) + if err != nil { + logrus.Warnf("failed to obtain TTY size: %v", err) + } + body.Width = uint16(w) + body.Height = uint16(h) } - body := struct { - Detach bool `json:"Detach"` - }{ - Detach: false, - } bodyJSON, err := json.Marshal(body) if err != nil { return err -- cgit v1.2.3-54-g00ecf