mirror of https://github.com/easzlab/kubeasz.git
77 lines
3.0 KiB
YAML
77 lines
3.0 KiB
YAML
# WARNNING: this playbook will clean the etcd {{ ETCD_TO_DEL }}
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# USAGE: easzctl del-etcd 1.1.1.1
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- hosts: localhost
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vars_prompt:
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- name: "ETCD_TO_DEL"
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prompt: "which etcd node is about to be deleted?(e.g 192.168.1.1)"
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private: no
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confirm: yes
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tasks:
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# step0: run prechecks
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- fail: msg="{{ ETCD_TO_DEL }} is NOT a member of etcd cluster!"
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when: "ETCD_TO_DEL not in groups['etcd']"
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- fail: msg="you CAN NOT delete the last member of etcd cluster!"
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when: "groups['etcd']|length < 2"
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- block:
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# step1: find a healthy member in the etcd cluster
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- name: set NODE_IPS of the etcd cluster
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set_fact: NODE_IPS="{% for host in groups['etcd'] %}{{ host }} {% endfor %}"
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- name: get etcd cluster status
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shell: 'for ip in {{ NODE_IPS }};do \
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ETCDCTL_API=3 {{ base_dir }}/bin/etcdctl \
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--endpoints=https://"$ip":2379 \
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--cacert={{ base_dir }}/.cluster/ssl/ca.pem \
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--cert={{ base_dir }}/.cluster/ssl/admin.pem \
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--key={{ base_dir }}/.cluster/ssl/admin-key.pem \
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endpoint health; \
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done'
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register: ETCD_CLUSTER_STATUS
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ignore_errors: true
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- debug: var="ETCD_CLUSTER_STATUS.stdout"
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- name: get a running ectd node
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shell: 'echo -e "{{ ETCD_CLUSTER_STATUS.stdout }}"|grep "is healthy"|sed -n "1p"|cut -d: -f2|cut -d/ -f3'
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register: RUNNING_NODE
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- debug: var="RUNNING_NODE.stdout"
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# step2: remove jobs run on the healthy member if needed
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- name: get ID of etcd node to delete
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shell: "ETCDCTL_API=3 {{ bin_dir }}/etcdctl member list|grep {{ ETCD_TO_DEL }}:2380|cut -d',' -f1"
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register: ETCD_ID
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delegate_to: "{{ RUNNING_NODE.stdout }}"
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- name: get NAME of etcd node to delete
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shell: "ETCDCTL_API=3 {{ bin_dir }}/etcdctl member list|grep {{ ETCD_TO_DEL }}:2380|cut -d' ' -f3|cut -d',' -f1"
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register: ETCD_NAME
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delegate_to: "{{ RUNNING_NODE.stdout }}"
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- name: delete a etcd member
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shell: "ETCDCTL_API=3 {{ bin_dir }}/etcdctl member remove {{ ETCD_ID.stdout }}"
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delegate_to: "{{ RUNNING_NODE.stdout }}"
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when: "ETCD_ID.stdout != ''"
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- name: clean etcd {{ ETCD_TO_DEL }} if possible
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shell: "ansible-playbook {{ base_dir }}/roles/clean/clean_node.yml \
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-e NODE_TO_CLEAN={{ ETCD_TO_DEL }} \
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-e DEL_ETCD=yes >> /tmp/ansible-`date +'%Y%m%d%H%M%S'`.log 2>&1 \
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|| echo 'data not cleaned on {{ ETCD_TO_DEL }}'"
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register: CLEAN_STATUS
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- debug: var="CLEAN_STATUS.stdout"
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# lineinfile is inadequate to delete lines between some specific line range
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- name: remove the etcd's node entry in hosts
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shell: 'sed -i "/^\[etcd/,/^\[kube-master/ {/^{{ ETCD_TO_DEL }}[^0-9]/d}" {{ base_dir }}/hosts'
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args:
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warn: false
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- name: reconfig and restart the etcd cluster
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shell: "ansible-playbook {{ base_dir }}/02.etcd.yml >> /tmp/ansible-`date +'%Y%m%d%H%M%S'`.log 2>&1"
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when: "groups['etcd']|length > 1 and ETCD_TO_DEL in groups['etcd']"
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