Created scp.go image_scp_test.go and podman-image-scp.1.md

added functionality for image secure copying from local to remote.
Also moved system connection add code around a bit so functions within that file
can be used by scp.

Signed-off-by: cdoern <cdoern@redhat.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/cmd/podman/system/connection/shared.go b/cmd/podman/system/connection/shared.go
new file mode 100644
index 000000000..3fd7c59fb
--- /dev/null
+++ b/cmd/podman/system/connection/shared.go
@@ -0,0 +1,28 @@
+package connection
+
+import (
+	"bytes"
+
+	"github.com/pkg/errors"
+	"golang.org/x/crypto/ssh"
+)
+
+// ExecRemoteCommand takes a ssh client connection and a command to run and executes the
+// command on the specified client. The function returns the Stdout from the client or the Stderr
+func ExecRemoteCommand(dial *ssh.Client, run string) (string, error) {
+	sess, err := dial.NewSession() // new ssh client session
+	if err != nil {
+		return "", err
+	}
+	defer sess.Close()
+
+	var buffer bytes.Buffer
+	var bufferErr bytes.Buffer
+	sess.Stdout = &buffer                 // output from client funneled into buffer
+	sess.Stderr = &bufferErr              // err form client funneled into buffer
+	if err := sess.Run(run); err != nil { // run the command on the ssh client
+		return "", errors.Wrapf(err, bufferErr.String())
+	}
+	out := buffer.String() // output from command
+	return out, nil
+}