mirror of https://github.com/easzlab/kubeasz.git
86 lines
2.4 KiB
YAML
86 lines
2.4 KiB
YAML
# 禁用系统swap
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- name: 禁用系统 swap
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shell: "source /etc/profile; swapoff -a && sysctl -w vm.swappiness=0"
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ignore_errors: true
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- name: 删除fstab swap 相关配置
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lineinfile:
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path: /etc/fstab
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regexp: 'swap'
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state: absent
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backup: 'yes'
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- name: 加载内核模块
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modprobe: name={{ item }} state=present
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with_items:
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- br_netfilter
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- ip_vs
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- ip_vs_rr
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- ip_vs_wrr
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- ip_vs_sh
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- nf_conntrack
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ignore_errors: true
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- name: 尝试加载nf_conntrack_ipv4
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shell: 'modprobe nf_conntrack_ipv4 || echo "NoFound"'
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register: NF_CONNTRACK_IPV4
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- name: 启用systemd自动加载模块服务
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service: name=systemd-modules-load enabled=yes
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- name: 增加内核模块开机加载配置
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template: src=10-k8s-modules.conf.j2 dest=/etc/modules-load.d/10-k8s-modules.conf
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# 设置系统参数for k8s
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# 消除docker info 警告WARNING: bridge-nf-call-ip[6]tables is disabled
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# https://success.docker.com/article/ipvs-connection-timeout-issue 缩短keepalive_time超时时间为600s
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- name: 设置系统参数
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template: src=95-k8s-sysctl.conf.j2 dest=/etc/sysctl.d/95-k8s-sysctl.conf
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- name: 查看是否需要设置 fs.may_detach_mounts
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stat:
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path: /proc/sys/fs/may_detach_mounts
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get_attributes: no
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get_checksum: no
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get_mime: no
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register: fs_may_detach_mounts
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ignore_errors: true
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- name: 当需要时，设置 fs.may_detach_mounts 为 1
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sysctl:
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sysctl_file: "/etc/sysctl.d/95-k8s-sysctl.conf"
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name: fs.may_detach_mounts
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value: 1
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state: present
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reload: yes
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when: fs_may_detach_mounts.stat.exists|bool
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- name: 查看是否需要设置 net.ipv4.tcp_tw_recycle
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stat:
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path: /proc/sys/net/ipv4/tcp_tw_recycle
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register: tcp_tw_recycle
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ignore_errors: true
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- name: 设置tcp_tw_recycle
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sysctl:
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sysctl_file: "/etc/sysctl.d/95-k8s-sysctl.conf"
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name: net.ipv4.tcp_tw_recycle
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value: 0
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state: present
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reload: yes
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when: tcp_tw_recycle.stat.exists|bool
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- name: 生效系统参数
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shell: "source /etc/profile; sysctl -p /etc/sysctl.d/95-k8s-sysctl.conf"
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ignore_errors: true
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# 设置系统 ulimits
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- name: 创建 systemd 配置目录
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file: name=/etc/systemd/system.conf.d state=directory
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- name: 设置系统 ulimits
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template: src=30-k8s-ulimits.conf.j2 dest=/etc/systemd/system.conf.d/30-k8s-ulimits.conf
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- name: 把SCTP列入内核模块黑名单
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copy: src=sctp.conf dest=/etc/modprobe.d/sctp.conf
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