Kubernetes Cluster Reset Role Add

README.md

@@ -12,7 +12,7 @@
 	: 각 서버 IP
 
 - cmoa_install.yaml
-	: 이미 kubernetes가깔려있다면 "- role: cmoa_os_setting" 주석 처리
+	: 이미 kubernetes가깔려있다면 `- role: cmoa_os_setting` 주석 처리
 
 - roles/cmoa_install/defaults/main.yml
 	: cmoa_version: relx.x.x
@@ -22,3 +22,17 @@
 	: ansible-playbook cmoa_install.yaml
 	or
 	: ansible-playbook cmoa_install.yaml -i <inventory file>
+
+4. Kubernetes Cluster 리셋 방법
+- cmoa_install.yaml
+```
+---
+- hosts: cluster
+  become: true
+  gather_facts: true
+  environment:
+    KUBECONFIG: /root/.kube/ansible_config
+  roles:
+    - role: cmoa_reset
+```
+위와 같이 `- role: cmoa_reset` 만 활성화 후 3번 실행

cmoa_install.yaml

@@ -5,5 +5,7 @@
   environment:
     KUBECONFIG: /root/.kube/ansible_config
   roles:
-    - role: cmoa_install
-      delegate_to: 127.0.0.1
+    #- role: cmoa_reset
+    #- role: cmoa_os_setting
+    #- role: cmoa_install
+      #delegate_to: 127.0.0.1

inventory

@@ -1,11 +1,11 @@
 [master]
-10.10.43.200
+10.10.43.227
 
 [worker1]
-10.10.43.201
+10.10.43.228
 
 [worker2]
-10.10.43.202
+10.10.43.229
 
 [cluster:children]
 master
@@ -15,7 +15,7 @@ worker2
 
 [master:vars]
 kubernetes_role="master"
-runtime="containerd"
+runtime="docker"
 
 [worker1:vars]
 kubernetes_role="node"
@@ -23,4 +23,4 @@ runtime="containerd"
 
 [worker2:vars]
 kubernetes_role="node"
-runtime="containerd"
+runtime="crio"

roles/cmoa_install/tasks/worker-directory.yml

@@ -19,6 +19,7 @@
     - /media/data/redis/redis-data-1
     - /media/data/rabbitmq
   when: inventory_hostname in groups["worker1"]
+  delegate_to: "{{ inventory_hostname }}"
   
 - name: make worker2 directory
   ansible.builtin.file:
@@ -41,3 +42,4 @@
     - /media/data/redis/redis-data-1
     - /media/data/redis/redis-data-2
   when: inventory_hostname in groups["worker2"]
+  delegate_to: "{{ inventory_hostname }}"

roles/cmoa_os_setting/tasks/00-centos-os-main.yml

@@ -6,7 +6,7 @@
 
 - name: Install yum packages
   yum:
-    name: ['cloud-utils', 'ca-certificates', 'socat', 'conntrack', 'gnupg', 'bash-completion', 'net-tools']
+    name: ['yum-utils', 'ca-certificates', 'socat', 'conntrack', 'gnupg', 'bash-completion', 'net-tools']
     state: present
 
 - name: Disable firewalld
@@ -74,4 +74,4 @@
 
 - name: Disable SELinux
   ansible.posix.selinux:
-    state: disabled
+    state: disabled

roles/cmoa_reset/README.md

@@ -0,0 +1,38 @@
+Role Name
+=========
+
+A brief description of the role goes here.
+
+Requirements
+------------
+
+Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
+
+Role Variables
+--------------
+
+A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
+
+Dependencies
+------------
+
+A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
+
+Example Playbook
+----------------
+
+Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
+
+    - hosts: servers
+      roles:
+         - { role: username.rolename, x: 42 }
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+An optional section for the role authors to include contact information, or a website (HTML is not allowed).

roles/cmoa_reset/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+# defaults file for cmoa_reset

roles/cmoa_reset/handlers/main.yml

@@ -0,0 +1,2 @@
+---
+# handlers file for cmoa_reset

roles/cmoa_reset/meta/main.yml

@@ -0,0 +1,52 @@
+galaxy_info:
+  author: your name
+  description: your role description
+  company: your company (optional)
+
+  # If the issue tracker for your role is not on github, uncomment the
+  # next line and provide a value
+  # issue_tracker_url: http://example.com/issue/tracker
+
+  # Choose a valid license ID from https://spdx.org - some suggested licenses:
+  # - BSD-3-Clause (default)
+  # - MIT
+  # - GPL-2.0-or-later
+  # - GPL-3.0-only
+  # - Apache-2.0
+  # - CC-BY-4.0
+  license: license (GPL-2.0-or-later, MIT, etc)
+
+  min_ansible_version: 2.1
+
+  # If this a Container Enabled role, provide the minimum Ansible Container version.
+  # min_ansible_container_version:
+
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  # platforms:
+  # - name: Fedora
+  #   versions:
+  #   - all
+  #   - 25
+  # - name: SomePlatform
+  #   versions:
+  #   - all
+  #   - 1.0
+  #   - 7
+  #   - 99.99
+
+  galaxy_tags: []
+    # List tags for your role here, one per line. A tag is a keyword that describes
+    # and categorizes the role. Users find roles by searching for tags. Be sure to
+    # remove the '[]' above, if you add tags to this list.
+    #
+    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
+    #       Maximum 20 tags per role.
+
+dependencies: []
+  # List your role dependencies here, one per line. Be sure to remove the '[]' above,
+  # if you add dependencies to this list.

roles/cmoa_reset/tasks/main.yml

@@ -0,0 +1,51 @@
+---
+- name: Reset Kubernetes Cluster
+  command: kubeadm reset -f
+  ignore_errors: yes
+
+- name: Remove Kubernetes configuration files
+  file:
+    path: "{{ item }}"
+    state: absent
+  loop:
+    - /etc/kubernetes
+    - /var/lib/etcd
+    - /var/lib/kubelet
+    - /var/lib/dockershim
+    - /var/run/kubernetes
+    - /var/run/dockershim
+    - /media/data
+    - /media/cloudmoa
+
+- name: Remove kubectl package
+  package:
+    name: kubectl
+    state: absent
+
+- name: Remove kubeadm package
+  package:
+    name: kubeadm
+    state: absent
+
+- name: Remove kubelet package
+  package:
+    name: kubelet
+    state: absent
+
+- name: Remove docker
+  package:
+    name: docker*
+    state: absent
+  when: runtime == "docker"
+
+- name: Remove containerd
+  package:
+    name: containerd
+    state: absent
+  when: runtime == "containerd"
+
+- name: Remove crio
+  package:
+    name: crio
+    state: absent
+  when: runtime == "crio"

roles/cmoa_reset/tests/inventory

@@ -0,0 +1,2 @@
+localhost
+

roles/cmoa_reset/tests/test.yml

@@ -0,0 +1,5 @@
+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - cmoa_reset

roles/cmoa_reset/vars/main.yml

@@ -0,0 +1,2 @@
+---
+# vars file for cmoa_reset