8000 Feature: Consume piped content when `--interactive` · Issue #558 · weaveworks/ignite · GitHub
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Feature: Consume piped content when --interactive #558

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taqtiqa-mark opened this issue Mar 10, 2020 · 2 comments · Fixed by #572
Closed

Feature: Consume piped content when --interactive #558

taqtiqa-mark opened this issue Mar 10, 2020 · 2 comments · Fixed by #572

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@taqtiqa-mark
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taqtiqa-mark commented Mar 10, 2020 •
edited
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Perhaps I've missed some Ignite-fu:

When using containers its common to find variations on this pattern in use:

echo piped content | docker run -i ubuntu:18.04 cat -

In Ignite (with autologin configured):

$ echo param here | sudo ignite start podman --interactive
INFO[0001] Networking is handled by "cni"               
INFO[0001] Started Firecracker VM "66b3b12ddabee624" in a container with ID "ignite-66b3b12ddabee624" 
66b3b12ddabee624
panic: provided file is not a console

goroutine 1 [running]:
github.com/containerd/console.Current(...)
        /go/src/github.com/weaveworks/ignite/vendor/github.com/containerd/console/console.go:67
github.com/weaveworks/ignite/pkg/runtime/containerd.(*ctdClient).AttachContainer(0xc0001e3bc0, 0xc000039480, 0x17, 0x0, 0x0)
        /go/src/github.com/weaveworks/ignite/pkg/runtime/containerd/client.go:318 +0xa01
github.com/weaveworks/ignite/cmd/ignite/run.Attach(0xc000081be0, 0xc0004b9c00, 0x0)
        /go/src/github.com/weaveworks/ignite/cmd/ignite/run/attach.go:34 +0x1c0
github.com/weaveworks/ignite/cmd/ignite/run.Start(0xc0000407f0, 0x7ffd1d8f3808, 0x6)
        /go/src/github.com/weaveworks/ignite/cmd/ignite/run/start.go:64 +0x2a1
github.com/weaveworks/ignite/cmd/ignite/cmd/vmcmd.NewCmdStart.func1.1(0xc0001e3260, 0xc0001e3540, 0x1, 0x2, 0x0, 0x0)
        /go/src/github.com/weaveworks/ignite/cmd/ignite/cmd/vmcmd/start.go:33 +0x80
github.com/weaveworks/ignite/cmd/ignite/cmd/vmcmd.NewCmdStart.func1(0xc00033cc80, 0xc0001e3540, 0x1, 0x2)
        /go/src/github.com/weaveworks/ignite/cmd/ignite/cmd/vmcmd/start.go:34 +0x48
github.com/spf13/cobra.(*Command).execute(0xc00033cc80, 0xc0001e34e0, 0x2, 0x2, 0xc00033cc80, 0xc0001e34e0)
        /go/src/github.com/weaveworks/ignite/vendor/github.com/spf13/cobra/command.go:830 +0x2ae
github.com/spf13/cobra.(*Command).ExecuteC(0xc0002c9b80, 0xc000096000, 0x12a5420, 0xc000096008)
        /go/src/github.com/weaveworks/ignite/vendor/github.com/spf13/cobra/command.go:914 +0x2fc
github.com/spf13/cobra.(*Command).Execute(...)
        /go/src/github.com/weaveworks/ignite/vendor/github.com/spf13/cobra/command.go:864
main.Run(0xc0004b9f88, 0xc00007e058)
        /go/src/github.com/weaveworks/ignite/cmd/ignite/ignite.go:24 +0xb5
main.main()
        /go/src/github.com/weaveworks/ignite/cmd/ignite/ignite.go:13 +0x22

Note in the above example /root/.profile contains:

if [ "$(tty)" == "/dev/ttyS0" ]; then
  echo 'Execute when login via ttyS0'
  cat -
fi
@taqtiqa-mark
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taqtiqa-mark commented Mar 11, 2020 •
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Just a note that the exec workaround requires SSH be installed and configured:

$ echo param here | sudo ignite exec podman cat -
[sudo] password for <user>: 
FATA[0000] no private key found for VM "66b3b12ddabee624"

@stealthybox
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@darkowlzz will take a look at this soon.
He made some previous attempts before and knows the code better now.

@darkowlzz darkowlzz mentioned this issue Apr 5, 2020
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Add interactive vm exec support darkowlzz/ignite
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