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nixos-infect
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optional eth1, works on OVH VPS

This commit is contained in:
Henri Bourcereau 2017-04-10 17:50:09 +02:00
parent 49f9184636
commit 3926cea21a
2 changed files with 36 additions and 22 deletions
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2
README.md
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@ -7,6 +7,8 @@ These are the only supported Digital Ocean images:
- Ubuntu 16.04 x64
- Debian 8.5 x64
It has also been successfully tested on OVH Virtual Private Servers (with debian)
YMMV with any other hoster + image combination.
nixos-infect is so named because of the high likelihood of rendering a system

56
nixos-infect
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@ -21,7 +21,7 @@ makeConf() {
networking.hostName = "$(hostname)";
networking.firewall.allowPing = true;
services.openssh.enable = true;
users.users.root.openssh.authorizedKeys.keys = [$(for key in ${keys[@]}; do echo -n "
users.root.openssh.authorizedKeys.keys = [$(for key in ${keys[@]}; do echo -n "
\"$key\""; done)
];
}
@ -35,19 +35,36 @@ EOF
fileSystems."/" = { device = "/dev/${disk}1"; fsType = "ext4"; };
}
EOF
# XXX It'd be better if we used procfs for all this...
local IFS=$'\n'
eth0_name=$(ip address show | grep ^2: | awk -F': ' '{print $2}')
eth1_name=$(ip address show | grep ^3: | awk -F': ' '{print $2}')
eth0_ip4s=($(ip address show dev $eth0_name | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
eth0_ip6s=($(ip address show dev $eth0_name | grep 'inet6 .*global' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|' || true))
eth1_ip4s=($(ip address show dev $eth1_name | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|' || true))
eth1_ip6s=($(ip address show dev $eth1_name | grep 'inet6 .*global' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|' || true))
eth0_name=$(ip address show | grep '^2:' | awk -F': ' '{print $2}')
eth0_ip4s=($(ip address show dev $eth0_name | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
eth0_ip6s=($(ip address show dev $eth0_name | grep 'inet6 ' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|' || ''))
gateway=($(ip route show dev $eth0_name | grep default | sed -r 's|default via ([0-9.]+).*|\1|'))
gateway6=($(ip -6 route show dev $eth0_name | grep default | sed -r 's|default via ([0-9a-f:]+).*|\1|' || true))
ether0=($(ip address show dev $eth0_name | grep link/ether | sed -r 's|.*link/ether ([0-9a-f:]+) .*|\1|'))
ether1=($(ip address show dev $eth1_name | grep link/ether | sed -r 's|.*link/ether ([0-9a-f:]+) .*|\1|'))
eth1_name=$(ip address show | grep '^3:' | awk -F': ' '{print $2}')||true
if [ -n "$eth1_name" ];then
eth1_ip4s=($(ip address show dev $eth1_name | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|'))
eth1_ip6s=($(ip address show dev $eth1_name | grep 'inet6 ' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|' || ''))
ether1=($(ip address show dev $eth1_name | grep link/ether | sed -r 's|.*link/ether ([0-9a-f:]+) .*|\1|'))
gateway6=($(ip -6 route show dev $eth1_name | grep default | sed -r 's|default via ([0-9a-f:]+).*|\1|' || true))
interfaces1=<< EOF
$eth1_name = {
ip4 = [$(for a in ${eth1_ip4s[@]}; do echo -n "
$a"; done)
];
ip6 = [$(for a in ${eth1_ip6s[@]}; do echo -n "
$a"; done)
];
EOF
extraRules1="ATTR{address}==\"${ether1}\", NAME=\"eth0\""
else
interfaces1=""
extraRules1=""
fi
nameservers=($(grep ^nameserver /etc/resolv.conf | cut -f2 -d' '))
cat > /etc/nixos/networking.nix << EOF
@ -61,27 +78,20 @@ EOF
defaultGateway = "${gateway}";
defaultGateway6 = "${gateway6}";
interfaces = {
eth0 = {
$eth0_name = {
ip4 = [$(for a in ${eth0_ip4s[@]}; do echo -n "
$a"; done)
];
ip6 = [$(for a in ${eth1_ip6s[@]}; do echo -n "
$a"; done)
];
};
eth1 = {
ip4 = [$(for a in ${eth1_ip4s[@]}; do echo -n "
$a"; done)
];
ip6 = [$(for a in ${eth1_ip6s[@]}; do echo -n "
ip6 = [$(for a in ${eth0_ip6s[@]}; do echo -n "
$a"; done)
];
};
$interfaces1
};
};
services.udev.extraRules = ''
ATTR{address}=="${ether0}", NAME="eth0"
ATTR{address}=="${ether1}", NAME="eth1"
$extraRules1
'';
}
EOF
@ -163,7 +173,9 @@ req() {
checkEnv() {
# Perform some easy fixups before checking
which dnf && dnf install -y perl-Digest-SHA # Fedora 24
which bzcat || (which yum && yum install -y bzip2) # CentOS
which bzcat || (which yum && yum install -y bzip2) \
|| (which apt-get && apt-get install bzip2) \
|| true
[[ "$(whoami)" == "root" ]] || { echo "ERROR: Must run as root"; return 1; }