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ssh exit with non-zero status on disabled user #472

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Merged
OddBloke merged 4 commits into from
Jul 15, 2020
Merged

ssh exit with non-zero status on disabled user #472

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ab2d185
ssh exit with non-zero status on disabled user
otubo Jul 2, 2020
15d3b33
Using a different return value to make life easier when grepping
otubo Jul 7, 2020
1048219
isolating the value in a separate variable for even better grepping
otubo Jul 8, 2020
226013e
Merge branch 'master' into exit-nonzer-on-disabled-user
OddBloke Jul 15, 2020
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4 changes: 3 additions & 1 deletion cloudinit/ssh_util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,11 +40,13 @@
"ssh-rsa-cert-v01@openssh.com",
)

_DISABLE_USER_SSH_EXIT = 142

DISABLE_USER_OPTS = (
"no-port-forwarding,no-agent-forwarding,"
"no-X11-forwarding,command=\"echo \'Please login as the user \\\"$USER\\\""
" rather than the user \\\"$DISABLE_USER\\\".\';echo;sleep 10\"")
" rather than the user \\\"$DISABLE_USER\\\".\';echo;sleep 10;"
"exit " + str(_DISABLE_USER_SSH_EXIT) + "\"")


class AuthKeyLine(object):
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2 changes: 1 addition & 1 deletion doc/examples/cloud-config.txt
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Expand Up @@ -236,7 +236,7 @@ disable_root: false
# The string '$USER' will be replaced with the username of the default user.
# The string '$DISABLE_USER' will be replaced with the username to disable.
#
# disable_root_opts: no-port-forwarding,no-agent-forwarding,no-X11-forwarding,command="echo 'Please login as the user \"$USER\" rather than the user \"$DISABLE_USER\".';echo;sleep 10"
# disable_root_opts: no-port-forwarding,no-agent-forwarding,no-X11-forwarding,command="echo 'Please login as the user \"$USER\" rather than the user \"$DISABLE_USER\".';echo;sleep 10;exit 142"

# disable ssh access for non-root-users
# To disable ssh access for non-root users, ssh_redirect_user: true can be
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