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forked from k-space/kube
kube/ansible-kubernetes.yml

83 lines
2.5 KiB
YAML

---
- name: Reconfigure graceful shutdown for kubelet
hosts: kubernetes
tasks:
- name: Reconfigure shutdownGracePeriod
ansible.builtin.lineinfile:
path: /var/lib/kubelet/config.yaml
regexp: '^shutdownGracePeriod:'
line: 'shutdownGracePeriod: 5m'
- name: Reconfigure shutdownGracePeriodCriticalPods
ansible.builtin.lineinfile:
path: /var/lib/kubelet/config.yaml
regexp: '^shutdownGracePeriodCriticalPods:'
line: 'shutdownGracePeriodCriticalPods: 5m'
- name: Work around unattended-upgrades
ansible.builtin.lineinfile:
path: /lib/systemd/logind.conf.d/unattended-upgrades-logind-maxdelay.conf
regexp: '^InhibitDelayMaxSec='
line: 'InhibitDelayMaxSec=5m0s'
- name: Pin kube components
hosts: kubernetes
tasks:
- name: Pin packages
loop:
- kubeadm
- kubectl
- kubelet
ansible.builtin.copy:
dest: "/etc/apt/preferences.d/{{ item }}"
content: |
Package: {{ item }}
Pin: version 1.26.*
Pin-Priority: 1001
- name: Reset /etc/containers/registries.conf
hosts: kubernetes
tasks:
- name: Copy /etc/containers/registries.conf
ansible.builtin.copy:
content: "unqualified-search-registries = [\"docker.io\"]\n"
dest: /etc/containers/registries.conf
register: registries
- name: Restart CRI-O
service:
name: cri-o
state: restarted
when: registries.changed
- name: Reset /etc/modules
hosts: kubernetes
tasks:
- name: Copy /etc/modules
ansible.builtin.copy:
content: |
overlay
br_netfilter
dest: /etc/modules
register: kernel_modules
- name: Load kernel modules
ansible.builtin.shell: "cat /etc/modules | xargs -L 1 -t modprobe"
when: kernel_modules.changed
- name: Reset /etc/sysctl.d/99-k8s.conf
hosts: kubernetes
tasks:
- name: Copy /etc/sysctl.d/99-k8s.conf
ansible.builtin.copy:
content: |
cat > /etc/sysctl.d/99-k8s.conf << EOF
net.ipv4.conf.all.accept_redirects = 0
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
vm.max_map_count = 524288
fs.inotify.max_user_instances = 1280
fs.inotify.max_user_watches = 655360
dest: /etc/sysctl.d/99-k8s.conf
register: sysctl
- name: Reload sysctl config
ansible.builtin.shell: "sysctl --system"
when: sysctl.changed