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https://github.com/PyratLabs/ansible-role-k3s.git
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Updated state tasks to dynamic include rather thn static import
This is an initial attempt to address issue #22, I have also included a task to drain the node before deleting it.
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@ -1,33 +1,5 @@
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---
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- name: Ensure ansible_host is mapped to inventory_hostname
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lineinfile:
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path: /tmp/inventory.txt
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line: >-
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{{ item }}
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@@@
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{{ hostvars[item].ansible_host | default(hostvars[item].ansible_fqdn) }}
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@@@
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C_{{ hostvars[item].k3s_control_node }}
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@@@
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P_{{ hostvars[item].k3s_primary_control_node | default(False) }}
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create: true
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loop: "{{ play_hosts }}"
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- name: Lookup control node from file
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command: "grep '{{ 'P_True' if (k3s_controller_count | length > 1) else 'C_True' }}' /tmp/inventory.txt"
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changed_when: false
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register: k3s_control_delegate_raw
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- name: Ensure control node is delegated to for obtaining a token
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set_fact:
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k3s_control_delegate: "{{ k3s_control_delegate_raw.stdout.split(' @@@ ')[0] }}"
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- name: Ensure the control node address is registered in Ansible
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set_fact:
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k3s_control_node_address: "{{ hostvars[k3s_control_delegate].ansible_host | default(hostvars[k3s_control_delegate].ansible_fqdn) }}"
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when: k3s_control_node_address is not defined
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- name: Ensure NODE_TOKEN is captured from control node
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slurp:
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path: "/var/lib/rancher/k3s/server/node-token"
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@ -22,12 +22,43 @@
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- name: Ensure a count of control masters is generated
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set_fact:
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k3s_controller_count: "{{ k3s_controller_count + [ item ] }}"
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when: hostvars[item].k3s_control_node
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when: hostvars[item].k3s_control_node is defined
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and hostvars[item].k3s_control_node
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loop: "{{ play_hosts }}"
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- name: Ensure a primary k3s control node is defined if multiple are found in play_hosts
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set_fact:
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k3s_primary_control_node: true
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when: k3s_controller_count | length > 1
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when: k3s_controller_count is defined
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and k3s_controller_count | length > 1
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and inventory_hostname == k3s_controller_count[0]
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and k3s_build_cluster is defined and k3s_build_cluster
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- name: Ensure ansible_host is mapped to inventory_hostname
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lineinfile:
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path: /tmp/inventory.txt
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line: >-
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{{ item }}
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@@@
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{{ hostvars[item].ansible_host | default(hostvars[item].ansible_fqdn) }}
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@@@
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C_{{ hostvars[item].k3s_control_node }}
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@@@
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P_{{ hostvars[item].k3s_primary_control_node | default(False) }}
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create: true
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loop: "{{ play_hosts }}"
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when: hostvars[item].k3s_control_node is defined
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- name: Lookup control node from file
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command: "grep '{{ 'P_True' if (k3s_controller_count | length > 1) else 'C_True' }}' /tmp/inventory.txt"
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changed_when: false
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register: k3s_control_delegate_raw
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- name: Ensure control node is delegated to for obtaining a token
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set_fact:
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k3s_control_delegate: "{{ k3s_control_delegate_raw.stdout.split(' @@@ ')[0] }}"
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- name: Ensure the control node address is registered in Ansible
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set_fact:
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k3s_control_node_address: "{{ hostvars[k3s_control_delegate].ansible_host | default(hostvars[k3s_control_delegate].ansible_fqdn) }}"
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when: k3s_control_node_address is not defined
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@ -4,6 +4,8 @@
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- import_tasks: build/preconfigure-k3s.yml
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- import_tasks: teardown/drain-and-remove-nodes.yml
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- import_tasks: build/get-version.yml
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when: k3s_release_version is not defined or not k3s_release_version
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@ -1,5 +1,9 @@
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---
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- import_tasks: build/preconfigure-k3s.yml
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- import_tasks: teardown/drain-and-remove-nodes.yml
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- import_tasks: teardown/uninstall-k3s.yml
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- import_tasks: teardown/uninstall-docker.yml
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38
tasks/teardown/drain-and-remove-nodes.yml
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38
tasks/teardown/drain-and-remove-nodes.yml
Normal file
@ -0,0 +1,38 @@
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---
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- name: Check if kubectl exists
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stat:
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path: "{{ k3s_install_dir }}/kubectl"
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register: k3s_check_kubectl
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- name: Clean up nodes that are in an uninstalled state
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block:
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- name: Gather a list of nodes
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command: "{{ k3s_install_dir }}/kubectl get nodes"
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changed_when: false
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failed_when: false
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delegate_to: "{{ k3s_control_delegate }}"
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run_once: true
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register: kubectl_get_nodes_result
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- name: Ensure uninstalled nodes are drained
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command: "{{ k3s_install_dir }}/kubectl drain {{ item }} --ignore-daemonsets"
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delegate_to: "{{ k3s_control_delegate }}"
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run_once: true
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when: item in kubectl_get_nodes_result.stdout
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and hostvars[item].k3s_cluster_state is defined
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and hostvars[item].k3s_cluster_state == 'uninstalled'
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loop: "{{ play_hosts }}"
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- name: Ensure uninstalled nodes are removed
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command: "{{ k3s_install_dir }}/kubectl delete node {{ item }}"
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delegate_to: "{{ k3s_control_delegate }}"
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run_once: true
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when: item in kubectl_get_nodes_result.stdout
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and hostvars[item].k3s_cluster_state is defined
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and hostvars[item].k3s_cluster_state == 'uninstalled'
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loop: "{{ play_hosts }}"
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when: k3s_check_kubectl.stat.exists is defined
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and k3s_check_kubectl.stat.exists
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