#cloud-boothook
#!/bin/bash

# udev persistent net
cloud-init-per instance udev_persistent_net1 /etc/init.d/networking stop

ADMIN_MAC={{ common.admin_mac }}
ADMIN_IF=$(echo {{ common.udevrules }} | sed 's/[,=]/\n/g' | grep "$ADMIN_MAC" | cut -d_ -f2 | head -1)
# Check if we do not already have static config (or interface seems unconfigured)
if [ ! -d "/etc/network/interfaces.d" ]; then
    mkdir -p /etc/network/interfaces.d
    echo 'source /etc/network/interfaces.d/*' > /etc/network/interfaces
fi
if [ ! -e "/etc/network/interfaces.d/ifcfg-$ADMIN_IF" ]; then
    echo -e "auto $ADMIN_IF\niface $ADMIN_IF inet static\n\taddress {{ common.admin_ip }}\n\tnetmask {{ common.admin_mask }}\n\tgateway {{ common.gw }}" > /etc/network/interfaces.d/ifcfg-"$ADMIN_IF"
fi

cloud-init-per instance udev_persistent_net5 /etc/init.d/networking start

# end of udev

#FIXME(agordeev): if operator updates dns settings on masternode after the node had been provisioned,
#                 cloud-init will start to generate resolv.conf with non-actual data
cloud-init-per instance resolv_conf_mkdir mkdir -p /etc/resolvconf/resolv.conf.d
cloud-init-per instance resolv_conf_remove rm -f /etc/resolv.conf
cloud-init-per instance resolv_conf_head_remove rm -f /etc/resolvconf/resolv.conf.d/head
cloud-init-per instance resolv_conf_header /bin/sh -c 'echo "# re-generated by cloud-init boothook only at the first boot;" | tee /etc/resolv.conf'
cloud-init-per instance resolv_conf_search /bin/sh -c 'echo "search {{ common.search_domain|replace('"','') }}" | tee -a /etc/resolv.conf'
cloud-init-per instance resolv_conf_domain /bin/sh -c 'echo "domain {{ common.search_domain|replace('"','') }}" | tee -a /etc/resolv.conf'
cloud-init-per instance resolv_conf_head_header /bin/sh -c 'echo "# re-generated by cloud-init boothook only at the first boot;" | tee /etc/resolvconf/resolv.conf.d/head'
cloud-init-per instance resolv_conf_head_search /bin/sh -c 'echo "search {{ common.search_domain|replace('"','') }}" | tee -a /etc/resolvconf/resolv.conf.d/head'
cloud-init-per instance resolv_conf_head_domain /bin/sh -c 'echo "domain {{ common.search_domain|replace('"','') }}" | tee -a /etc/resolvconf/resolv.conf.d/head'
cloud-init-per instance resolv_conf_nameserver /bin/sh -c 'echo nameserver {{ common.master_ip|replace('"','') }} | tee -a /etc/resolv.conf'
cloud-init-per instance resolv_conf_head_nameserver /bin/sh -c 'echo nameserver {{ common.master_ip|replace('"','') }} | tee -a /etc/resolvconf/resolv.conf.d/head'

# configure black module lists
# virt-what should be installed
if [ ! -f /etc/modprobe.d/blacklist-i2c_piix4.conf ]; then
    ([[ $(virt-what) = "virtualbox" ]] && echo "blacklist i2c_piix4" >> /etc/modprobe.d/blacklist-i2c_piix4.conf || :) && update-initramfs -u -k all
    modprobe -r i2c_piix4
fi

cloud-init-per instance conntrack_ipv4 /bin/sh -c 'echo nf_conntrack_ipv4 | tee -a /etc/modules'
cloud-init-per instance conntrack_ipv6 /bin/sh -c 'echo nf_conntrack_ipv6 | tee -a /etc/modules'
cloud-init-per instance conntrack_proto_gre /bin/sh -c 'echo nf_conntrack_proto_gre | tee -a /etc/modules'
cloud-init-per instance conntrack_max /bin/sh -c 'echo "net.nf_conntrack_max=1048576" | tee -a /etc/sysctl.conf'
cloud-init-per instance kernel_panic /bin/sh -c 'echo "kernel.panic=60" | tee -a /etc/sysctl.conf'

cloud-init-per instance conntrack_ipv4_load modprobe nf_conntrack_ipv4
cloud-init-per instance conntrack_ipv6_load modprobe nf_conntrack_ipv6
cloud-init-per instance conntrack_proto_gre_load modprobe nf_conntrack_proto_gre
cloud-init-per instance conntrack_max_set sysctl -w "net.nf_conntrack_max=1048576"
cloud-init-per instance kernel_panic_set sysctl -w "kernel.panic=60"

cloud-init-per instance dhclient /bin/sh -c 'echo "supersede routers 0;" | tee /etc/dhcp/dhclient.conf'