164 lines
4.2 KiB
Bash
Executable File
164 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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# postinst script for #PACKAGE#
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#
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# see: dh_installdeb(1)
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set -e
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# summary of how this script can be called:
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# * <postinst> `configure' <most-recently-configured-version>
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# * <old-postinst> `abort-upgrade' <new version>
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# * <conflictor's-postinst> `abort-remove' `in-favour' <package>
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# <new-version>
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# * <postinst> `abort-remove'
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# * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
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# <failed-install-package> <version> `removing'
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# <conflicting-package> <version>
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# for details, see https://www.debian.org/doc/debian-policy/ or
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# the debian-policy package
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case "$1" in
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configure)
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### START gather all the info from the box and generate the variabels
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export LOOPBACKv4=$(dig a +short ${HOSTNAME})
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export LOOPBACKv6=$(dig aaaa +short ${HOSTNAME})
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NODEASN=$(dig txt +short asn.${HOSTNAME})
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NODEASN="${NODEASN%\"}"
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NODEASN="${NODEASN#\"}"
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export NODEASN
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if [ -z $LOOPBACKv4 ] || [ -z $LOOPBACKv6 ] || [ -z $NODEASN ]; then
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echo "unable to find my LOOPBACK IP and/or ASN: $LOOPBACKv4/$LOOPBACKv6/$NODEASN"
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exit 2
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fi
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declare -A MACS
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for if in mgmt feth1 feth2 feth3 fet4 up1 up2 up3 up4 ibgp1 ibgp2 ibgp3 ibgp4
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do
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MACS["$if"]=$(dig txt +short mac.$if.$HOSTNAME) ## careful mac will be wrapped in quotes, but we don't care since we'll need it again wrapped in quotes (so far)
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done
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## END variables
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## START writing config files
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# disable password logins on ssh
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sed -i -e '/#*\s*PasswordAuthentication /d' /etc/ssh/sshd_config
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echo "PasswordAuthentication no" >>/etc/ssh/sshd_config
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# set network interface configurations
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cat <<-EOF >/etc/network/interfaces
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source-directory /etc/network/interfaces.d
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EOF
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cat <<-EOF >/etc/network/interfaces.d/lo
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auto lo
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iface lo inet loopback
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iface lo inet static
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address ${LOOPBACKv4}/32
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iface lo inet6 static
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address ${LOOPBACKv6}/128
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EOF
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cat <<-"EOF" >/etc/network/interfaces.d/mgmt1
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auto mgmt1
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iface mgmt1 inet dhcp
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pre-up /bin/ip link add mgmt type vrf table mgmt
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pre-up /bin/ip link set up dev mgmt
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pre-up /bin/ip link set master mgmt dev mgmt1
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post-down /bin/ip link del dev mgmt
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iface mgmt1 inet6 auto
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EOF
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cat <<-"EOF" >/etc/network/interfaces.d/feth
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auto feth1
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iface feth1 inet manual
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mtu 9000
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auto feth2
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iface feth2 inet manual
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mtu 9000
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EOF
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# set frr config
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sed -i -e "s/FRRROUTERID/${LOOPBACKv4}/" -e "s/NODEASN/${NODEASN}/" /etc/frr/frr.conf.wit
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chown frr.frr /etc/frr/frr.conf.wit /etc/frr/daemons.wit
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# set ipsec config
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sed -i -e "s/FQHOSTNAME/${HOSTNAME}/" /etc/ipsec.conf.wit
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echo ": RSA ${HOSTNAME}.key" >/etc/ipsec.secrets
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# write udev rules for device names
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for if in ${!MACS[@]}
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do
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ifmac=${MACS[$if]}
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[ "$if" == "mgmt" ] && if=mgmt1
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[ -z "$ifmac" ] || echo 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=='$ifmac', ATTR{type}=="1", NAME="'${if}'"'
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done >/etc/udev/rules.d/70-persistent-net.rules
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# wite grub rules for serial terminal
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sed -i -e '/GRUB_CMDLINE_LINUX_DEFAULT=/d' -e '/GRUB_CMDLINE_LINUX=/d' -e '/GRUB_SERIAL_COMMAND=/d' -e '/GRUB_TERMINAL=/d' /etc/default/grub
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cat <<-EOF >>/etc/default/grub
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GRUB_CMDLINE_LINUX_DEFAULT=""
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GRUB_CMDLINE_LINUX="console=tty0 console=ttyS1,115200n8"
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GRUB_TERMINAL=serial
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GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=1 --word=8 --parity=no --stop=1"
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EOF
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## END config file section
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## START configuring services as we need it
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systemctl enable firewall
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systemctl restart systemd-timesyncd
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systemctl restart ssh
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update-grub
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sysctl -p /etc/sysctl.d/10-frr.conf
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## END services section
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;;
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abort-upgrade|abort-remove|abort-deconfigure)
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;;
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*)
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echo "postinst called with unknown argument \`$1'" >&2
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exit 1
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;;
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esac
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# dh_installdeb will replace this with shell code automatically
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# generated by other debhelper scripts.
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#DEBHELPER#
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exit 0
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