mirror of https://github.com/easzlab/kubeasz.git
228 lines
7.2 KiB
YAML
228 lines
7.2 KiB
YAML
# 警告：此脚本将清理单个node节点，使用请详细参阅 docs/op/clean_one_node.md
|
||
# 请三思后运行此脚本，特别的：如果有pod使用了本地存储类型，请自行判断重要性
|
||
# 使用：
|
||
# 1. 执行 ansible-playbook /etc/ansible/tools/clean_one_node.yml
|
||
# 2. 按照提示输入待删除节点
|
||
|
||
- hosts: deploy
|
||
vars_prompt:
|
||
- name: "NODE_TO_DEL"
|
||
prompt: "which node is about to be deleted?(e.g 192.168.1.1)"
|
||
private: no
|
||
confirm: yes
|
||
tasks:
|
||
- name: fail info1
|
||
fail: msg="you CAN NOT delete the last member of etcd cluster!"
|
||
when: "groups['etcd']|length < 2 and NODE_TO_DEL in groups['etcd']"
|
||
|
||
- name: fail info2
|
||
fail: msg="you CAN NOT delete the last member of kube-master!"
|
||
when: "groups['kube-master']|length < 2 and NODE_TO_DEL in groups['kube-master']"
|
||
|
||
- name: 执行kubectl drain(节点可能是kube-node节点)
|
||
shell: "{{ bin_dir }}/kubectl drain {{ NODE_TO_DEL }} --ignore-daemonsets --delete-local-data"
|
||
ignore_errors: true
|
||
|
||
- block:
|
||
# 清理 kube-node 相关服务
|
||
- name: stop and disable kube-node service
|
||
service: name={{ item }} state=stopped enabled=no
|
||
with_items:
|
||
- kubelet
|
||
- kube-proxy
|
||
ignore_errors: true
|
||
|
||
- name: umount kubelet 挂载的目录
|
||
shell: "mount | grep '/var/lib/kubelet'| awk '{print $3}'|xargs umount"
|
||
args:
|
||
warn: false
|
||
ignore_errors: true
|
||
|
||
- name: 清理目录和文件
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/var/lib/kubelet/"
|
||
- "/var/lib/kube-proxy/"
|
||
- "/etc/systemd/system/kubelet.service"
|
||
- "/etc/systemd/system/kube-proxy.service"
|
||
- "/opt/kube/kube-system/"
|
||
|
||
# 清理 kube-master 相关
|
||
- name: stop and disable kube-master service
|
||
service: name={{ item }} state=stopped enabled=no
|
||
with_items:
|
||
- kube-apiserver
|
||
- kube-controller-manager
|
||
- kube-scheduler
|
||
ignore_errors: true
|
||
|
||
- name: 清理目录和文件
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/var/run/kubernetes"
|
||
- "/etc/systemd/system/kube-apiserver.service"
|
||
- "/etc/systemd/system/kube-controller-manager.service"
|
||
- "/etc/systemd/system/kube-scheduler.service"
|
||
|
||
# 清理集群docker服务、网络相关
|
||
- name: 清理kube-router相关
|
||
shell: "{{ bin_dir }}/docker run --privileged --net=host cloudnativelabs/kube-router --cleanup-config"
|
||
ignore_errors: true
|
||
when: "CLUSTER_NETWORK == 'kube-router'"
|
||
|
||
- name: 获取是否运行名为'kubeasz'的容器
|
||
shell: 'docker ps|grep kubeasz || echo "NOT FOUND"'
|
||
register: install_info
|
||
|
||
- name: stop and disable docker service
|
||
service:
|
||
name: docker
|
||
state: stopped
|
||
enabled: no
|
||
ignore_errors: true
|
||
when: "'kubeasz' not in install_info.stdout"
|
||
|
||
- name: unmount docker filesystem-1
|
||
mount: path=/var/run/docker/netns/default state=unmounted
|
||
when: "'kubeasz' not in install_info.stdout"
|
||
|
||
- name: unmount docker filesystem-2
|
||
mount: path=/var/lib/docker/overlay state=unmounted
|
||
when: "'kubeasz' not in install_info.stdout"
|
||
|
||
- name: remove files and dirs
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/var/lib/docker/"
|
||
- "/var/run/docker/"
|
||
- "/etc/systemd/system/docker.service"
|
||
- "/etc/systemd/system/docker.service.requires/"
|
||
- "/etc/systemd/system/docker.service.d/"
|
||
- "/etc/bash_completion.d/docker"
|
||
- "/usr/bin/docker"
|
||
when: "'kubeasz' not in install_info.stdout"
|
||
|
||
- name: remove files and dirs2
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/etc/cni/"
|
||
- "/run/flannel/"
|
||
- "/etc/calico/"
|
||
- "/var/run/calico/"
|
||
- "/var/lib/calico/"
|
||
- "/var/log/calico/"
|
||
- "/etc/cilium/"
|
||
- "/var/run/cilium/"
|
||
- "/sys/fs/bpf/tc/"
|
||
- "/var/lib/cni/"
|
||
- "/var/lib/kube-router/"
|
||
- "/opt/kube/kube-system/"
|
||
|
||
- name: cleanup iptables
|
||
shell: "iptables -F && iptables -X \
|
||
&& iptables -F -t nat && iptables -X -t nat \
|
||
&& iptables -F -t raw && iptables -X -t raw \
|
||
&& iptables -F -t mangle && iptables -X -t mangle"
|
||
when: "'kubeasz' not in install_info.stdout"
|
||
|
||
- name: cleanup networks1
|
||
shell: "ip link del tunl0; \
|
||
ip link del flannel.1; \
|
||
ip link del cni0; \
|
||
ip link del mynet0; \
|
||
ip link del kube-bridge; \
|
||
ip link del dummy0; \
|
||
ip link del kube-ipvs0; \
|
||
ip link del cilium_net; \
|
||
ip link del cilium_vxlan"
|
||
ignore_errors: true
|
||
|
||
- name: cleanup networks2
|
||
shell: "ip link del docker0; \
|
||
systemctl restart networking; \
|
||
systemctl restart network"
|
||
ignore_errors: true
|
||
when: "'kubeasz' not in install_info.stdout"
|
||
|
||
- name: cleanup 'calico' routes
|
||
shell: "for rt in `ip route|grep bird|sed 's/blackhole//'|awk '{print $1}'`;do ip route del $rt;done;"
|
||
when: "CLUSTER_NETWORK == 'calico'"
|
||
ignore_errors: true
|
||
|
||
# 清理etcd 集群相关
|
||
- name: stop and disable etcd service
|
||
service:
|
||
name: etcd
|
||
state: stopped
|
||
enabled: no
|
||
ignore_errors: true
|
||
|
||
- name: 清理目录和文件
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/var/lib/etcd"
|
||
- "/etc/etcd/"
|
||
- "/backup/k8s"
|
||
- "/etc/systemd/system/etcd.service"
|
||
|
||
# 清理负载均衡相关
|
||
- name: stop keepalived service
|
||
shell: systemctl disable keepalived && systemctl stop keepalived
|
||
ignore_errors: true
|
||
|
||
- name: stop haproxy service
|
||
shell: systemctl disable haproxy && systemctl stop haproxy
|
||
ignore_errors: true
|
||
|
||
- name: 清理LB 配置文件目录
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/etc/haproxy"
|
||
- "/etc/keepalived"
|
||
|
||
# 清理其他
|
||
- name: stop and disable chrony in Ubuntu
|
||
service: name=chrony state=stopped enabled=no
|
||
ignore_errors: true
|
||
tags: rm_ntp
|
||
when: ansible_distribution == "Ubuntu" or ansible_distribution == "Debian"
|
||
|
||
- name: stop and disable chronyd in CentOS/RedHat
|
||
service: name=chronyd state=stopped enabled=no
|
||
ignore_errors: true
|
||
tags: rm_ntp
|
||
when: ansible_distribution == "CentOS" or ansible_distribution == "RedHat"
|
||
|
||
- name: 清理证书目录和文件
|
||
file: name={{ item }} state=absent
|
||
with_items:
|
||
- "/etc/kubernetes/"
|
||
- "{{ ca_dir }}"
|
||
- "/root/.kube/"
|
||
- "/etc/docker/"
|
||
|
||
- name: 清理自动生成的PATH
|
||
lineinfile:
|
||
dest: ~/.bashrc
|
||
state: absent
|
||
regexp: '{{ item }}'
|
||
with_items:
|
||
- 'kubeasz'
|
||
- 'helm'
|
||
- 'kubectl completion'
|
||
delegate_to: "{{ NODE_TO_DEL }}"
|
||
run_once: true
|
||
|
||
# 执行kubectl delete(节点可能是kube-node节点)
|
||
- name: 执行kubectl delete(节点可能是kube-node节点)
|
||
shell: "{{ bin_dir }}/kubectl delete node {{ NODE_TO_DEL }}"
|
||
ignore_errors: true
|
||
|
||
# 删除 ansible hosts 中节点配置
|
||
- name: rm {{ NODE_TO_DEL }} in ansible hosts
|
||
lineinfile:
|
||
dest: "{{ base_dir }}/hosts"
|
||
state: absent
|
||
regexp: '{{ NODE_TO_DEL }}'
|
||
connection: local
|