c12s-kubespray/roles/reset/tasks/main.yml

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---
- name: reset | stop services
service:
name: "{{ item }}"
state: stopped
with_items:
- kubelet
- vault
- etcd
- etcd-events
failed_when: false
tags:
- services
- name: reset | remove services
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file:
path: "/etc/systemd/system/{{ item }}.service"
state: absent
with_items:
- kubelet
- etcd
- etcd-events
- vault
- calico-node
register: services_removed
tags:
- services
- name: reset | remove docker dropins
file:
path: "/etc/systemd/system/docker.service.d/{{ item }}"
state: absent
with_items:
- docker-dns.conf
- docker-options.conf
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- http-proxy.conf
register: docker_dropins_removed
tags:
- docker
- name: reset | systemctl daemon-reload
command: systemctl daemon-reload
when: services_removed.changed or docker_dropins_removed.changed
- name: reset | remove all containers
shell: "{{ docker_bin_dir }}/docker ps -aq | xargs -r docker rm -fv"
register: remove_all_containers
retries: 4
until: remove_all_containers.rc == 0
delay: 5
tags:
- docker
- name: reset | restart docker if needed
service:
name: docker
state: restarted
when: docker_dropins_removed.changed
tags:
- docker
- name: reset | gather mounted kubelet dirs
shell: mount | grep /var/lib/kubelet/ | awk '{print $3}' | tac
check_mode: no
register: mounted_dirs
tags:
- mounts
- name: reset | unmount kubelet dirs
command: umount {{item}}
with_items: '{{ mounted_dirs.stdout_lines }}'
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register: umount_dir
retries: 4
until: umount_dir.rc == 0
delay: 5
tags:
- mounts
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- name: flush iptables
iptables:
table: "{{ item }}"
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flush: yes
with_items:
- filter
- nat
when: flush_iptables|bool
tags:
- iptables
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- name: reset | delete some files and directories
file:
path: "{{ item }}"
state: absent
with_items:
- "{{kube_config_dir}}"
- /var/lib/kubelet
- /root/.kube
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- /root/.helm
- "{{ etcd_data_dir }}"
- /var/lib/etcd-events
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- /etc/ssl/etcd
- /var/log/calico
- /etc/cni
- /etc/nginx
- /etc/dnsmasq.d
- /etc/dnsmasq.conf
- /etc/dnsmasq.d-available
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- /etc/etcd.env
- /etc/calico
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- /etc/weave.env
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- /opt/cni
- /etc/dhcp/dhclient.d/zdnsupdate.sh
- /etc/dhcp/dhclient-exit-hooks.d/zdnsupdate
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- /run/flannel
- /etc/flannel
- /run/kubernetes
- /usr/local/share/ca-certificates/etcd-ca.crt
- /usr/local/share/ca-certificates/kube-ca.crt
- /usr/local/share/ca-certificates/vault-ca.crt
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- /etc/ssl/certs/etcd-ca.pem
- /etc/ssl/certs/kube-ca.pem
- /etc/ssl/certs/vault-ca.crt
- /etc/pki/ca-trust/source/anchors/etcd-ca.crt
- /etc/pki/ca-trust/source/anchors/kube-ca.crt
- /etc/pki/ca-trust/source/anchors/vault-ca.crt
- /etc/vault
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- /var/log/pods/
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- "{{ bin_dir }}/kubelet"
- "{{ bin_dir }}/etcd-scripts"
- "{{ bin_dir }}/etcd"
- "{{ bin_dir }}/etcd-events"
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- "{{ bin_dir }}/etcdctl"
- "{{ bin_dir }}/kubernetes-scripts"
- "{{ bin_dir }}/kubectl"
- "{{ bin_dir }}/kubeadm"
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- "{{ bin_dir }}/helm"
- "{{ bin_dir }}/calicoctl"
- "{{ bin_dir }}/weave"
- /var/lib/rkt
- /etc/vault
ignore_errors: yes
tags:
- files
- name: reset | remove dns settings from dhclient.conf
blockinfile:
dest: "{{ item }}"
state: absent
follow: yes
marker: "# Ansible entries {mark}"
failed_when: false
with_items:
- /etc/dhclient.conf
- /etc/dhcp/dhclient.conf
tags:
- files
- dns
- name: reset | remove host entries from /etc/hosts
blockinfile:
dest: "/etc/hosts"
state: absent
follow: yes
marker: "# Ansible inventory hosts {mark}"
tags:
- files
- dns
- name: reset | include file with reset tasks specific to the network_plugin if exists
include_tasks: "{{ (role_path + '/../network_plugin/' + kube_network_plugin + '/tasks/reset.yml') | realpath }}"
when:
- kube_network_plugin in ['flannel', 'cilium']
tags:
- network
- name: reset | Restart network
service:
name: >-
{% if ansible_os_family == "RedHat" -%}
network
{%- elif ansible_os_family == "Debian" -%}
networking
{%- endif %}
state: restarted
when: ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"] and reset_restart_network
tags:
- services
- network