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|
---
# Target: centos8
- hosts: k8s
vars:
username: k8s
home_directory: "/home/{{ username }}"
k8s_version: 1.17.0
tasks:
- name: Ensuring group exists
group:
name: "{{ username }}"
state: present
- name: Creating user and making home directory
user:
system: yes
state: present
name: "{{ username }}"
groups: "{{ username }}"
home: "{{ home_directory }}"
- name: Adding Docker repository
get_url:
url: https://download.docker.com/linux/centos/docker-ce.repo
dest: /etc/yum.repos.d/
- name: Installing Docker
yum:
state: present
update_cache: yes
name:
- docker-ce-3:18.09.1-3.el7
- docker-ce-cli-1:18.09.1-3.el7
- containerd.io-1.2.0-3.el7
- sudo
- tc
- git
- name: Creating docker directory
file:
path: /etc/docker
state: directory
mode: '0755'
- name: Copying Docker daemon configuration
copy:
src: daemon.json
dest: /etc/docker/daemon.json
owner: root
group: root
mode: '0644'
register: dockerDaemonConfig
- name: Creating containerd override directory
file:
path: /etc/systemd/system/containerd.service.d/
state: directory
mode: '0755'
- name: Copying containerd override configuration
copy:
src: containerd-override.conf
dest: /etc/systemd/system/containerd.service.d/override.conf
owner: root
group: root
mode: '0644'
- name: Reloading systemd daemon
systemd:
daemon_reload: yes
- name: Ensuring Docker is enabled and started
systemd:
name: docker
state: started
enabled: yes
- name: Restarting Docker due to daemon config change
systemd:
name: docker
state: restarted
when: dockerDaemonConfig.changed
- name: Adding Kubernetes repository
yum_repository:
name: kubernetes
file: kubernetes
description: Kubernetes Repo
baseurl: https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
gpgkey: https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
gpgcheck: yes
- name: Installing kubelet and kubeadm on worker nodes
yum:
state: present
update_cache: yes
name:
- kubelet-{{ k8s_version }}-0
- kubeadm-{{ k8s_version }}-0
- hosts: k8s_master
vars:
username: k8s
home_directory: "/home/{{ username }}"
k8s_version: 1.17.0
tasks:
- name: Installing kubectl on master node
yum:
state: present
name:
- kubectl-{{ k8s_version }}-0
- name: Copying kubelet environment file
copy:
src: kubelet
dest: /etc/sysconfig/kubelet
mode: '0644'
- name: Initialize Kubernetes cluster
shell: >
kubeadm init --ignore-preflight-errors all --v=5 > k8s_cluster_initialization.log &&
touch .k8s_cluster_initialized
args:
chdir: "{{ home_directory }}"
creates: .k8s_cluster_initialized
register: output
- debug: var=output
- name: Creating kube folder
file:
path: "{{ item }}"
state: directory
owner: "{{ username }}"
group: "{{ username }}"
mode: '0755'
with_items:
- "{{ home_directory }}/.kube"
- "{{ home_directory }}/.kube/.check"
- name: Copying Kubernetes config file to home folder
copy:
src: /etc/kubernetes/admin.conf
dest: "{{ home_directory }}/.kube/config"
owner: "{{ username }}"
group: "{{ username }}"
mode: '0644'
remote_src: yes
- name: Copying Kubernetes dashboard user config
copy:
src: k8s-dashboard-admin.yaml
dest: "{{ home_directory }}/.kube"
owner: "{{ username }}"
group: "{{ username }}"
mode: '0644'
- name: Copying Kubernetes dashboard bind config
copy:
src: k8s-dashboard-binding.yaml
dest: "{{ home_directory }}/.kube"
owner: "{{ username }}"
group: "{{ username }}"
mode: '0644'
- block:
- name: Bringing up pod network
shell: >
kubectl apply -f
"https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')" &&
touch .kube/.check/.k8s_network_installed
args:
chdir: "{{ home_directory }}"
creates: .kube/.check/.k8s_network_installed
- name: Installing Kubernetes Dashboard
shell: >
kubectl apply -f
https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-beta8/aio/deploy/recommended.yaml &&
touch .kube/.check/.k8s_dashboard_installed
args:
chdir: "{{ home_directory }}"
creates: .kube/.check/.k8s_dashboard_installed
- name: Creating Kubernetes Dashboard administrator
shell: >
kubectl apply -f
.kube/k8s-dashboard-admin.yaml &&
touch .kube/.check/.k8s_dashboard_admin_installed
args:
chdir: "{{ home_directory }}"
creates: .kube/.check/.k8s_dashboard_admin_installed
- name: Creating Kubernetes Dashboard cluster binding
shell: >
kubectl apply -f
.kube/k8s-dashboard-binding.yaml &&
touch .kube/.check/.k8s_dashboard_binding_installed
args:
chdir: "{{ home_directory }}"
creates: .kube/.check/.k8s_dashboard_binding_installed
- name: Cloning Kubernetes metrics server
git:
repo: https://github.com/kubernetes-sigs/metrics-server
dest: "{{ home_directory }}/.kube/metrics-server"
version: 4f6ef77ce0cb128663c86708566b3e43cdc47ac4
- name: Deploying the metrics server
shell: >
kubectl create -f
.kube/metrics-server/deploy/1.8+ &&
touch .kube/.check/.k8s_metrics_server_installed
args:
chdir: "{{ home_directory }}"
creates: .kube/.check/.k8s_metrics_server_installed
- name: Printing Kubernetes Dashboard token
shell: >
kubectl -n kubernetes-dashboard describe secret
$(kubectl -n kubernetes-dashboard get secret | grep admin-user | awk '{print $1}')
register: token
- debug: var=token
become: true
become_user: "{{ username }}"
|
