45 lines
969 B
Markdown
45 lines
969 B
Markdown
# Freeleaps Cluster Maintain Ansible
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> This folder used to Freeleaps Kubernetes Cluster maintaining.
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## Pre-settings for each node
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### Enable HugePage on node's kernel
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```bash
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# Check nodes HugePage params if not 1024
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sudo grep HugePages /proc/meminfo
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# Add HugePage params into kernel settings
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echo 1024 | sudo tee /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
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echo vm.nr_hugepages = 1024 | sudo tee -a /etc/sysctl.conf
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```
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### Change Kernel Params
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You need ensure kernel params (`/etc/sysctl.conf`) like belows:
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```text
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net.ipv4.ip_forward=1
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kernel.keys.root_maxbytes=25000000
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kernel.keys.root_maxkeys=1000000
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kernel.panic=10
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kernel.panic_on_oops=1
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vm.overcommit_memory=1
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vm.panic_on_oom=0
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net.ipv4.ip_local_reserved_ports=30000-32767
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net.bridge.bridge-nf-call-iptables=1
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net.bridge.bridge-nf-call-arptables=1
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net.bridge.bridge-nf-call-ip6tables=1
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vm.nr_hugepages = 1024
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```
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Using `sysctl -p` to make kernel params effect.
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## How to use ?
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TODO |