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RFE: Root password #40

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RFE: Root password #40

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ba58e54
Make routes config explicit.
danbst Oct 10, 2019
f562ed2
generate random password for root as initial configuration
danbst Oct 10, 2019
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19 changes: 19 additions & 0 deletions nixos-infect
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Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,17 @@

set -e -o pipefail

ROOT_PASSWORD=

makeConf() {
# Skip everything if main config already present
[[ -e /etc/nixos/configuration.nix ]] && return 0
# NB <<"EOF" quotes / $ ` in heredocs, <<EOF does not
mkdir -p /etc/nixos
# generate some default password, to make login possible if network is down
set +o pipefail
ROOT_PASSWORD="$(cat /dev/urandom | tr -dc _A-Z-a-z-0-9 | head -c12)"
set -o pipefail
# Prevent grep for sending error code 1 (and halting execution) when no lines are selected : https://www.unix.com/man-page/posix/1P/grep
local IFS=$'\n'; keys=($(grep -vE '^[[:space:]]*(#|$)' /root/.ssh/authorized_keys || [[ $? == 1 ]]))
local network_import=""
Expand All @@ -29,6 +35,9 @@ makeConf() {
users.users.root.openssh.authorizedKeys.keys = [$(for key in "${keys[@]}"; do echo -n "
\"$key\""; done)
];
$([ -n "$ROOT_PASSWORD" ] && echo "
users.users.root.password = ''$ROOT_PASSWORD'';
")
}
EOF
# If you rerun this later, be sure to prune the filesSystems attr
Expand Down Expand Up @@ -105,6 +114,8 @@ EOF
ipv6.addresses = [$(for a in "${eth0_ip6s[@]}"; do echo -n "
$a"; done)
];
ipv4.routes = [ { address = "${gateway}"; prefixLength = 32; } ];
ipv6.routes = [ { address = "${gateway6}"; prefixLength = 32; } ];
};
$interfaces1
};
Expand Down Expand Up @@ -260,6 +271,14 @@ makeConf
infect
removeSwap


if [ -n "$ROOT_PASSWORD" ]; then
echo "-----"
echo "Root password set: $ROOT_PASSWORD"
echo "You can use it if instance is not reachable through SSH. Don't forget to change it after infection complete."
echo "-----"
fi

if [[ -z "$NO_REBOOT" ]]; then
reboot
fi