2022-02-23 19:36:03 +01:00
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#cloud-config
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2022-03-03 01:28:51 +01:00
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write_files:
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# Configure the private network interface
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- content: |
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BOOTPROTO='dhcp'
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STARTMODE='auto'
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path: /etc/sysconfig/network/ifcfg-eth1
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# Disable ssh password authentication
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- content: |
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PasswordAuthentication no
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X11Forwarding no
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MaxAuthTries 2
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AllowTcpForwarding no
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AllowAgentForwarding no
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AuthorizedKeysFile .ssh/authorized_keys
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path: /etc/ssh/sshd_config.d/kube-hetzner.conf
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2022-03-04 13:53:45 +01:00
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# Setting the right reboot mode
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- content: |
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REBOOT_METHOD=kured
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path: /etc/transactional-update.conf
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append: true
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2022-03-03 01:28:51 +01:00
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# Add ssh authorized keys
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ssh_authorized_keys:
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%{ for key in sshAuthorizedKeys ~}
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- ${key}
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%{ endfor ~}
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2022-03-02 14:30:19 +01:00
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# Resize /var, not /, as that's the last partition in MicroOS image.
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growpart:
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devices: ["/var"]
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2022-03-02 22:23:36 +01:00
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# Make sure the hostname is set correctly
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2022-03-02 22:19:58 +01:00
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hostname: ${hostname}
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2022-03-03 01:28:51 +01:00
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preserve_hostname: true
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manage_etc_hosts: "localhost"
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2022-02-23 19:36:03 +01:00
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runcmd:
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2022-03-03 01:28:51 +01:00
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# As above, make sure the hostname is not reset
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- [ sed, -i, 's#preserve_hostname: false#preserve_hostname: true#g', /etc/cloud/cloud.cfg]
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- [ sed, -i, 's#NETCONFIG_NIS_SETDOMAINNAME="yes"#NETCONFIG_NIS_SETDOMAINNAME="no"#g', /etc/sysconfig/network/config]
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- [ sed, -i, 's#DHCLIENT_SET_HOSTNAME="yes"#DHCLIENT_SET_HOSTNAME="no"#g', /etc/sysconfig/network/dhcp]
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# We set Google DNS servers
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- [ sed, -i, 's#NETCONFIG_DNS_STATIC_SERVERS=""#NETCONFIG_DNS_STATIC_SERVERS="8.8.8.8 8.8.4.4"#g', /etc/sysconfig/network/config]
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2022-03-03 19:25:58 +01:00
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# Bound the amount of logs that can survive on the system
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- [ sed, -i, 's/#SystemMaxUse=/SystemMaxUse=3G/g', /etc/systemd/journald.conf]
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- [ sed, -i, 's/#MaxRetentionSec=/MaxRetentionSec=1week/g', /etc/systemd/journald.conf]
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2022-03-03 01:28:51 +01:00
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# Activate the private network
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- systemctl reload network
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# Activate ssh configuration
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- systemctl reload sshd
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# Finishing automatic reboot via Kured setup
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- rebootmgrctl set-strategy off
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# Reduce the default number of snapshots from 2-10 number limit, to 4
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# And from 4-10 number limit important, to 2
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- snapper -c root set-config "NUMBER_LIMIT=4"
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- snapper -c root set-config "NUMBER_LIMIT_IMPORTANT=2"
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