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Run CMD on ttyS0 after login and exit the VM after CMD is finished #5

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Run CMD on ttyS0 after login and exit the VM after CMD is finished #5

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b7a23c4
Encode xml before writing
rmohr Jun 2, 2016
696c1c1
Run CMD on ttyS0 terminal trough .bashrc
rmohr Jun 3, 2016
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2 changes: 1 addition & 1 deletion examples/Dockerfile.simple
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Original file line number Diff line number Diff line change
Expand Up @@ -7,4 +7,4 @@ RUN echo Hello > /marker

EXPOSE 1234

CMD echo World >> /marker
CMD echo World >> /marker && echo "Ciao!"
11 changes: 8 additions & 3 deletions vocker
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Original file line number Diff line number Diff line change
Expand Up @@ -145,13 +145,16 @@ class CmdOperation(Operation):
log.warn("Not supporting CMD […], copying it anyway")

env = ["export %s" % e for e in self.env if "=" in e]
cmd = "#!/bin/bash\n\n%s\n\n%s" % ("\n".join(env), self.args)
cmd = "#!/bin/bash\n\n%s\n\n%s\n" % ("\n".join(env), self.args)
ttyS0 = "#!/bin/bash\n\nif [ `tty | sed -e \"s#^.\+/##\"` == ttyS0 ]; then /etc/vocker.sh; shutdown -h now; fi\n"
log.debug("rc.local: %s" % cmd)

fish(layer.filename,
"write", "/etc/rc.d/rc.local", cmd,
"write", "/etc/vocker.sh", cmd,
":",
"sh", "chmod a+x /etc/rc.d/rc.local",
"write", "/root/.bashrc", ttyS0,
":",
"sh", "chmod a+x /etc/vocker.sh",
":",
"sh", "sed -i '/^ExecStart=/ s/$/ --autologin root/' /usr/lib/systemd/system/getty@.service /usr/lib/systemd/system/serial-getty@.service",
":",
Expand Down Expand Up @@ -345,6 +348,8 @@ if __name__ == "__main__":


with tempfile.NamedTemporaryFile("wb") as spec:
if type(xml) == str:
xml = xml.encode()
spec.write(xml)
spec.flush()
sh.virsh("define", spec.name)
Expand Down