From 2c54629cac6c04e60e49c7560f721a7d1210d3c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torma=20Krist=C3=B3f?= <tormakristof@tormakristof.eu>
Date: Thu, 2 Apr 2020 01:43:50 +0200
Subject: [PATCH] add kubernetes playbook

---
 master-playbook.yml | 114 ++++++++++++++++++++++++++++++++++++++++++++
 node-playbook.yml   | 100 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 214 insertions(+)
 create mode 100644 master-playbook.yml
 create mode 100644 node-playbook.yml

diff --git a/master-playbook.yml b/master-playbook.yml
new file mode 100644
index 0000000..9868df2
--- /dev/null
+++ b/master-playbook.yml
@@ -0,0 +1,114 @@
+---
+- hosts: all
+  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
+
+  - name: Add an apt signing key for Docker
+    apt_key:
+      url: https://download.docker.com/linux/ubuntu/gpg
+      state: present
+
+  - name: Add apt repository for stable version
+    apt_repository:
+      repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic 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: Add user to docker group
+    user:
+      name: torma
+      group: docker
+  - 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
+
+  - 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: Configure node ip
+    lineinfile:
+      path: /etc/default/kubelet
+      line: KUBELET_EXTRA_ARGS=--node-ip={{ node_ip }}
+
+  - name: Restart kubelet
+    service:
+      name: kubelet
+      daemon_reload: yes
+      state: restarted
+
+  - name: Initialize the Kubernetes cluster using kubeadm
+    command: kubeadm init --apiserver-advertise-address="192.168.50.10" --apiserver-cert-extra-sans="192.168.50.10"  --node-name k8s-master --pod-network-cidr=192.168.0.0/16
+
+  - name: Setup kubeconfig for vagrant user
+    command: "{{ item }}"
+    with_items:
+     - mkdir -p /home/vagrant/.kube
+     - cp -i /etc/kubernetes/admin.conf /home/vagrant/.kube/config
+     - chown vagrant:vagrant /home/vagrant/.kube/config
+
+  - name: Install calico pod network
+    become: false
+    command: kubectl create -f https://docs.projectcalico.org/v3.4/getting-started/kubernetes/installation/hosted/calico.yaml
+
+  - 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"
+
+  handlers:
+    - name: docker status
+      service: name=docker state=started
diff --git a/node-playbook.yml b/node-playbook.yml
new file mode 100644
index 0000000..213b55a
--- /dev/null
+++ b/node-playbook.yml
@@ -0,0 +1,100 @@
+---
+- hosts: all
+  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
+
+  - name: Add an apt signing key for Docker
+    apt_key:
+      url: https://download.docker.com/linux/ubuntu/gpg
+      state: present
+
+  - name: Add apt repository for stable version
+    apt_repository:
+      repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial 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: Add vagrant user to docker group
+    user:
+      name: torma
+      group: docker
+
+  - 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
+
+  - 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: Configure node ip
+    lineinfile:
+      path: /etc/default/kubelet
+      line: KUBELET_EXTRA_ARGS=--node-ip={{ node_ip }}
+
+  - name: Restart kubelet
+    service:
+      name: kubelet
+      daemon_reload: yes
+      state: restarted
+
+  - 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
+
+  handlers:
+    - name: docker status
+      service: name=docker state=started