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rdalbuquerque/master-playbook.yml

Last active June 8, 2021 13:27
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Ansible playbook for Kubernetes node setup
Raw
master-playbook.yml
---
- hosts: all
remote_user: admin
become: true
tasks:
- name: Install packages that allow apt to be used over HTTPS
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- apt-transport-https
- ca-certificates
- curl
- gnupg-agent
- software-properties-common
# Installing docker and its dependencies
- name: Add an apt signing key for Docker
apt_key:
url: https://download.docker.com/linux/debian/gpg
state: present
- name: Add apt repository for stable version
apt_repository:
repo: deb [arch=amd64] https://download.docker.com/linux/debian buster stable
state: present
- name: Install docker and its dependecies
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- docker-ce
- docker-ce-cli
- containerd.io
notify:
- docker status
- name: Creating /etc/docker/daemon.json file with optimal configs
copy:
dest: "/etc/docker/daemon.json"
content: |
{
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m"
},
"storage-driver": "overlay2"
}
- name: Restart docker
service:
name: docker
daemon_reload: yes
state: restarted
- name: Add aws default user to docker group
user:
name: admin
group: docker
# Disabling swap for kubelet to work
- name: Remove swapfile from /etc/fstab
mount:
name: "{{ item }}"
fstype: swap
state: absent
with_items:
- swap
- none
- name: Disable swap
command: swapoff -a
when: ansible_swaptotal_mb > 0
- name: Add an apt signing key for Kubernetes
apt_key:
url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
state: present
# Installing kubelet, kubeadm and kubectl
- name: Adding apt repository for Kubernetes
apt_repository:
repo: deb https://apt.kubernetes.io/ kubernetes-xenial main
state: present
filename: kubernetes.list
- name: Install Kubernetes binaries
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- kubelet
- kubeadm
- kubectl
- name: Restart kubelet
service:
name: kubelet
daemon_reload: yes
state: restarted
# Initialize the cluster with kubeadm
- name: Initialize the Kubernetes cluster using kubeadm
command: "{{ item }}"
with_items:
- systemctl stop kubelet
- kubeadm init --apiserver-advertise-address {{ private_ip }} --apiserver-cert-extra-sans {{ public_ip }} --node-name {{ hostname }} --pod-network-cidr=10.244.0.0/16 --ignore-preflight-errors="NumCPU,Mem"
# Setup kubeconfig file for admin
- name: Setup kubeconfig for admin user
command: "{{ item }}"
with_items:
- mkdir -p /home/admin/.kube
- cp -i /etc/kubernetes/admin.conf /home/admin/.kube/config
- chown admin:admin /home/admin/.kube/config
# Setup networking provider and network policy engine
- name: Install flannel pod network
become: false
command: kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
# Generate join-command to add new nodes -- will be skipped for now
- name: Generate join command
command: kubeadm token create --print-join-command
register: join_command
- name: Copy join command to local file
local_action: copy content="{{ join_command.stdout_lines[0] }}" dest="./join-command"
# Setup handler for checking Docker daemon
handlers:
- name: docker status
service: name=docker state=started
Raw
node-playbook.yml
---
- hosts: all
remote_user: admin
become: true
tasks:
- name: Install packages that allow apt to be used over HTTPS
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- apt-transport-https
- ca-certificates
- curl
- gnupg-agent
- software-properties-common
# Installing docker and its dependencies
- name: Add an apt signing key for Docker
apt_key:
url: https://download.docker.com/linux/debian/gpg
state: present
- name: Add apt repository for stable version
apt_repository:
repo: deb [arch=amd64] https://download.docker.com/linux/debian buster stable
state: present
- name: Install docker and its dependecies
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- docker-ce
- docker-ce-cli
- containerd.io
notify:
- docker status
- name: Creating /etc/docker/daemon.json file with optimal configs
copy:
dest: "/etc/docker/daemon.json"
content: |
{
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m"
},
"storage-driver": "overlay2"
}
- name: Restart docker
service:
name: docker
daemon_reload: yes
state: restarted
- name: Add aws default user to docker group
user:
name: admin
group: docker
# Disabling swap for kubelet to work
- name: Remove swapfile from /etc/fstab
mount:
name: "{{ item }}"
fstype: swap
state: absent
with_items:
- swap
- none
- name: Disable swap
command: swapoff -a
when: ansible_swaptotal_mb > 0
- name: Add an apt signing key for Kubernetes
apt_key:
url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
state: present
# Installing kubelet, kubeadm and kubectl
- name: Adding apt repository for Kubernetes
apt_repository:
repo: deb https://apt.kubernetes.io/ kubernetes-xenial main
state: present
filename: kubernetes.list
- name: Install Kubernetes binaries
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- kubelet
- kubeadm
- kubectl
- name: Restart kubelet
service:
name: kubelet
daemon_reload: yes
state: restarted
# Join the cluster with join command
- name: Copy the join command to server location
copy: src=join-command dest=/tmp/join-command.sh mode=0777
- name: Join the node to cluster
command: sh /tmp/join-command.sh
# Setup handler for checking Docker daemon
handlers:
- name: docker status
service: name=docker state=started
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