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template version of this cloud-config: http://blog.mapstrata.com/coreos-install-to-a-vps/
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#cloud-config | |
hostname: HOSTNAME | |
write_files: | |
- path: /etc/iptables.rules | |
permissions: 0644 | |
content: | | |
*filter | |
:INPUT DROP [13:1170] | |
:FORWARD ACCEPT [0:0] | |
:OUTPUT ACCEPT [142:13212] | |
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT | |
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP | |
-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROP | |
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP | |
-A INPUT -i lo -j ACCEPT | |
-A INPUT -p icmp -j ACCEPT | |
-A INPUT -p tcp -m tcp --dport SSH -j ACCEPT | |
COMMIT | |
coreos: | |
etcd: | |
addr: $private_ipv4:4001 | |
peer-addr: $private_ipv4:7001 | |
units: | |
- name: etcd.service | |
command: start | |
- name: fleet.service | |
command: start | |
- name: static.network | |
content: | | |
[Match] | |
Name=DEVICE | |
[Network] | |
Address=ADDRESS | |
Gateway=GATEWAY | |
DNS=NS1 | |
DNS=NS2 | |
- name: iptables.service | |
command: start | |
content: | | |
[Unit] | |
Description=Packet Filtering Framework | |
DefaultDependencies=no | |
After=systemd-sysctl.service | |
Before=sysinit.target | |
[Service] | |
Type=oneshot | |
ExecStart=/usr/sbin/iptables-restore /etc/iptables.rules | |
ExecReload=/usr/sbin/iptables-restore /etc/iptables.rules | |
ExecStop=/usr/sbin/iptables --flush | |
RemainAfterExit=yes | |
[Install] | |
WantedBy=multi-user.target | |
users: | |
- name: core | |
ssh-authorized-keys: | |
- PUBKEY | |
- groups: | |
- sudo | |
- docker |
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