kjuulh/terraform-hcloud-kube-hetzner
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userdata tweaks

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This commit is contained in:
Karim Naufal 2022-03-04 15:46:15 +01:00
parent c14d85300e
commit fecd312cdd
1 changed files with 17 additions and 22 deletions
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39
modules/host/templates/userdata.yaml.tpl
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@ -18,6 +18,11 @@ write_files:
AuthorizedKeysFile .ssh/authorized_keys
path: /etc/ssh/sshd_config.d/kube-hetzner.conf
# Set reboot method as "kured"
- content: |
REBOOT_METHOD=kured
path: /etc/transactional-update.conf
# Add ssh authorized keys
ssh_authorized_keys:
%{ for key in sshAuthorizedKeys ~}
@ -31,33 +36,23 @@ growpart:
# Make sure the hostname is set correctly
hostname: ${hostname}
preserve_hostname: true
manage_etc_hosts: "localhost"
runcmd:
# As above, make sure the hostname is not reset
- [ sed, -i, 's#preserve_hostname: false#preserve_hostname: true#g', /etc/cloud/cloud.cfg]
- [ sed, -i, 's#NETCONFIG_NIS_SETDOMAINNAME="yes"#NETCONFIG_NIS_SETDOMAINNAME="no"#g', /etc/sysconfig/network/config]
- [ sed, -i, 's#DHCLIENT_SET_HOSTNAME="yes"#DHCLIENT_SET_HOSTNAME="no"#g', /etc/sysconfig/network/dhcp]
- [sed, -i, 's#NETCONFIG_NIS_SETDOMAINNAME="yes"#NETCONFIG_NIS_SETDOMAINNAME="no"#g', /etc/sysconfig/network/config]
- [sed, -i, 's#DHCLIENT_SET_HOSTNAME="yes"#DHCLIENT_SET_HOSTNAME="no"#g', /etc/sysconfig/network/dhcp]
# We set Google DNS servers
- [ sed, -i, 's#NETCONFIG_DNS_STATIC_SERVERS=""#NETCONFIG_DNS_STATIC_SERVERS="1.1.1.1 1.0.0.1 8.8.8.8 8.8.4.4"#g', /etc/sysconfig/network/config]
# We set Cloudflare DNS servers, followed by Google as a backup
- [sed, -i, 's#NETCONFIG_DNS_STATIC_SERVERS=""#NETCONFIG_DNS_STATIC_SERVERS="1.1.1.1 1.0.0.1 8.8.8.8"#g', /etc/sysconfig/network/config]
# Bound the amount of logs that can survive on the system
- [ sed, -i, 's/#SystemMaxUse=/SystemMaxUse=3G/g', /etc/systemd/journald.conf]
- [ sed, -i, 's/#MaxRetentionSec=/MaxRetentionSec=1week/g', /etc/systemd/journald.conf]
# Bounds the amount of logs that can survive on the system
- [sed, -i, 's/#SystemMaxUse=/SystemMaxUse=3G/g', /etc/systemd/journald.conf]
- [sed, -i, 's/#MaxRetentionSec=/MaxRetentionSec=1week/g', /etc/systemd/journald.conf]
# Activate the private network
- systemctl reload network
# Disables unneeded services
- [systemctl, disable, '--now', 'rebootmgr.service']
# Activate ssh configuration
- systemctl reload sshd
# Finishing automatic reboot via Kured setup
- echo 'REBOOT_METHOD=kured' > /etc/transactional-update.conf
- rebootmgrctl set-strategy off
# Reduce the default number of snapshots from 2-10 number limit, to 4
# And from 4-10 number limit important, to 2
- snapper -c root set-config "NUMBER_LIMIT=4"
- snapper -c root set-config "NUMBER_LIMIT_IMPORTANT=2"
# Reduces the default number of snapshots from 2-10 number limit, to 4 and from 4-10 number limit important, to 2
- [snapper, -c, root, 'set-config', 'NUMBER_LIMIT=4']
- [snapper, -c, root, 'set-config', 'NUMBER_LIMIT_IMPORTANT=2']