From 560c18ccfd71a2008bec54b33bc26ecce765bdb1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torma=20Krist=C3=B3f?= <tormakristof@tormakristof.eu>
Date: Sat, 3 Oct 2020 00:59:13 +0200
Subject: [PATCH] init

---
 README.md                      |  3 ++
 hosts                          |  8 ++++
 roles/common/handlers/main.yml | 12 ++++++
 roles/common/tasks/main.yml    | 77 ++++++++++++++++++++++++++++++++++
 roles/master/tasks/main.yml    | 32 ++++++++++++++
 roles/worker/tasks/main.yml    |  4 ++
 update.yml                     | 21 ++++++++++
 7 files changed, 157 insertions(+)
 create mode 100644 README.md
 create mode 100644 hosts
 create mode 100644 roles/common/handlers/main.yml
 create mode 100644 roles/common/tasks/main.yml
 create mode 100644 roles/master/tasks/main.yml
 create mode 100644 roles/worker/tasks/main.yml
 create mode 100644 update.yml

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..dc90c75
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# EasyUpdater
+
+Update HyperCluster Linux virtual machines easily
\ No newline at end of file
diff --git a/hosts b/hosts
new file mode 100644
index 0000000..8d7b683
--- /dev/null
+++ b/hosts
@@ -0,0 +1,8 @@
+[opensuse]
+192.168.42.90
+
+[debian]
+192.168.42.42
+
+[centos]
+192.168.42.69
\ No newline at end of file
diff --git a/roles/common/handlers/main.yml b/roles/common/handlers/main.yml
new file mode 100644
index 0000000..d70f481
--- /dev/null
+++ b/roles/common/handlers/main.yml
@@ -0,0 +1,12 @@
+- name: docker status
+  service:
+    name: docker
+    state: started 
+    enabled: true
+
+- name: restart kubelet
+  service:
+    name: kubelet
+    daemon_reload: yes
+    state: restarted
+    enabled: true
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
new file mode 100644
index 0000000..ed943ee
--- /dev/null
+++ b/roles/common/tasks/main.yml
@@ -0,0 +1,77 @@
+- name: Install packages that allow apt to be used over HTTPS
+  apt:
+    name: "{{ packages }}"
+    state: present
+    update_cache: yes
+  vars:
+    packages:
+    - aptitude
+    - 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: "{{ ansible_user_id }}"
+    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
+  notify:
+    - restart kubelet
diff --git a/roles/master/tasks/main.yml b/roles/master/tasks/main.yml
new file mode 100644
index 0000000..c4ef3f2
--- /dev/null
+++ b/roles/master/tasks/main.yml
@@ -0,0 +1,32 @@
+- name: Initialize the Kubernetes cluster using kubeadm
+  command: kubeadm init --apiserver-advertise-address="{{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }}"
+
+- name: Creates .kube directory
+  file:
+    path: /home/{{ ansible_user_id }}/.kube
+    state: directory
+
+- name: Copy files needed for kubectl
+  copy:
+    remote_src: yes
+    src: /etc/kubernetes/admin.conf
+    dest: /home/{{ ansible_user_id }}/.kube/config
+    owner: "{{ ansible_user_id }}"
+    group: users
+
+- name: Set up weave network
+  shell: export KUBECONFIG=/etc/kubernetes/admin.conf && export kubever=$(kubectl version | base64 | tr -d '\n') && kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$kubever"
+  register: weavenet_out
+
+- name: Generate join command
+  command: kubeadm token create --print-join-command
+  register: kubernetes_join_command_result
+  
+- name: Set the kubeadm join command globally.
+  set_fact:
+    kubernetes_join_command: >
+      {{ kubernetes_join_command_result.stdout }}
+  when: kubernetes_join_command_result.stdout is defined
+  delegate_to: "{{ item }}"
+  delegate_facts: true
+  with_items: "{{ groups['all'] }}"
diff --git a/roles/worker/tasks/main.yml b/roles/worker/tasks/main.yml
new file mode 100644
index 0000000..d6b9467
--- /dev/null
+++ b/roles/worker/tasks/main.yml
@@ -0,0 +1,4 @@
+- name: Join node to Kubernetes master
+  shell: >
+    {{ kubernetes_join_command }}
+    creates=/etc/kubernetes/kubelet.conf
diff --git a/update.yml b/update.yml
new file mode 100644
index 0000000..6438781
--- /dev/null
+++ b/update.yml
@@ -0,0 +1,21 @@
+---
+- name: Apply common configuration to all nodes
+  hosts: all
+  become: true
+
+  roles:
+    - common
+
+- name: Configure and deploy Kubernetes master
+  hosts: master
+  become: true
+
+  roles:
+    - master
+
+- name: Join workers to Kubernetes cluster
+  hosts: worker
+  become: true
+
+  roles:
+    - worker