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netcup VPS: Inventory-Eintrag + sysctl-Override (BBR/fq, ohne VM-Werte)

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- [vps]-Gruppe mit netcup (194.13.80.132) ins Inventory, in [all:children]
- sysctl-Rolle: Loop auf Variable sysctl_params umgestellt (defaults/main.yml)
- group_vars/vps: VPS-Override (fq ergaenzt, swappiness/dirty_ratio weggelassen)
- .gitignore: id_ed25519 (privater Key!) + iso-builder/output ergaenzt

Entspricht dem live gesetzten /etc/sysctl.d/99-net-tuning.conf (15.06.2026).
Dry-run gegen netcup: changed=0 (idempotent), andere Hosts unveraendert.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Sascha 2026-06-15 21:23:29 +02:00 • committed by sascha
parent e8a521da09
commit d857b72cf8
5 changed files with 91 additions and 49 deletions
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23
roles/sysctl/tasks/main.yml
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@ -17,25 +17,4 @@
sysctl_file: /etc/sysctl.d/99-net-tuning.conf
reload: true
state: present
loop:
- { key: net.core.rmem_default, value: "262144" }
- { key: net.core.wmem_default, value: "262144" }
- { key: net.core.rmem_max, value: "67108864" }
- { key: net.core.wmem_max, value: "67108864" }
- { key: net.ipv4.tcp_rmem, value: "4096 87380 67108864" }
- { key: net.ipv4.tcp_wmem, value: "4096 65536 67108864" }
- { key: net.ipv4.tcp_window_scaling, value: "1" }
- { key: net.ipv4.tcp_congestion_control, value: "bbr" }
- { key: net.ipv4.tcp_slow_start_after_idle, value: "0" }
- { key: net.ipv4.tcp_fastopen, value: "3" }
- { key: net.core.netdev_max_backlog, value: "16384" }
- { key: net.core.somaxconn, value: "4096" }
- { key: net.ipv4.tcp_notsent_lowat, value: "16384" }
- { key: net.ipv4.tcp_fin_timeout, value: "15" }
- { key: net.ipv4.tcp_tw_reuse, value: "1" }
- { key: vm.swappiness, value: "1" }
- { key: vm.dirty_ratio, value: "15" }
- { key: vm.dirty_background_ratio, value: "5" }
- { key: net.ipv4.tcp_mtu_probing, value: "1" }
- { key: net.ipv4.ip_forward, value: "1" }
- { key: net.ipv6.conf.all.forwarding, value: "1" }
loop: "{{ sysctl_params }}"