73 lines
2.1 KiB
YAML
73 lines
2.1 KiB
YAML
#cloud-config
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# Copyright 2020 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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write_files:
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- path: /etc/sysctl.conf
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permissions: "0644"
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owner: root
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content: |
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net.ipv4.ip_forward = 1
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net.ipv6.conf.all.forwarding = 1
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net.ipv4.conf.all.accept_redirects = 0
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net.ipv4.conf.all.send_redirects = 0
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# https://tldp.org/HOWTO/Adv-Routing-HOWTO/lartc.kernel.rpf.html
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net.ipv4.conf.all.rp_filter = 2
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net.ipv4.conf.ens4.rp_filter = 2
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net.ipv4.conf.ens5.rp_filter = 2
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- path: /etc/netplan/99-nic2-routing.yaml
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permissions: "0644"
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owner: root
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content: |
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network:
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ethernets:
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ens5:
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dhcp4: true
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routes:
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- to: 0.0.0.0/0
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via: ${gw_right}
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table: 102
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routing-policy:
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- from: ${ip_cidr_right}
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to: 35.191.0.0/16
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table: 102
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- from: ${ip_cidr_right}
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to: 130.211.0.0/22
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table: 102
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version: 2
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- path: /root/start.sh
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permissions: "0755"
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owner: root
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content: |
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#!/bin/bash
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iptables -D INPUT -s 35.191.0.0/16 -j REJECT
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iptables -D INPUT -s 130.211.0.0/22 -j REJECT
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- path: /root/stop.sh
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permissions: "0755"
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owner: root
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content: |
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#!/bin/bash
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iptables -I INPUT -s 35.191.0.0/16 -j REJECT
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iptables -I INPUT -s 130.211.0.0/22 -j REJECT
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package_update: true
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package_upgrade: true
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package_reboot_if_required: true
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packages:
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- iftop
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- tcpdump
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runcmd:
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- sysctl -p
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- netplan apply
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