From 30d748775b335b7463b609599cb1206415e356bb Mon Sep 17 00:00:00 2001
From: Thedro Neely <thedroneely@gmail.com>
Date: Mon, 23 Dec 2019 23:20:57 -0500
Subject: roles/k8s/main.yml: Deploy metrics server

---
 roles/k8s/main.yml | 67 ++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 42 insertions(+), 25 deletions(-)

(limited to 'roles/k8s/main.yml')

diff --git a/roles/k8s/main.yml b/roles/k8s/main.yml
index b6a1a06..cd3c881 100644
--- a/roles/k8s/main.yml
+++ b/roles/k8s/main.yml
@@ -1,7 +1,7 @@
 ---
 # Target: centos8
 - hosts: k8s
-  vars: 
+  vars:
     username: k8s
     home_directory: "/home/{{ username }}"
     k8s_version: 1.17.0
@@ -31,6 +31,7 @@
         - containerd.io-1.2.0-3.el7
         - sudo
         - tc
+        - git
   - name: Creating docker directory
     file:
       path: /etc/docker
@@ -86,7 +87,7 @@
         - kubeadm-{{ k8s_version }}-0
 
 - hosts: k8s_master
-  vars: 
+  vars:
     username: k8s
     home_directory: "/home/{{ username }}"
     k8s_version: 1.17.0
@@ -102,21 +103,24 @@
         dest: /etc/sysconfig/kubelet
         mode: '0644'
     - name: Initialize Kubernetes cluster
-      shell: > 
-        kubeadm init --ignore-preflight-errors all --v=5 > k8s_cluster_initialization.log && 
+      shell: >
+        kubeadm init --ignore-preflight-errors all --v=5 > k8s_cluster_initialization.log &&
         touch .k8s_cluster_initialized
-      args: 
+      args:
         chdir: "{{ home_directory }}"
         creates: .k8s_cluster_initialized
       register: output
     - debug: var=output
     - name: Creating kube folder
       file:
-        path: "{{ home_directory }}/.kube"
+        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
@@ -141,40 +145,53 @@
         mode: '0644'
     - block:
       - name: Bringing up pod network
-        shell: > 
+        shell: >
           kubectl apply -f
           "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')" &&
-          touch .kube/.k8s_network_installed
-        args: 
+          touch .kube/.check/.k8s_network_installed
+        args:
           chdir: "{{ home_directory }}"
-          creates: .kube/.k8s_network_installed
+          creates: .kube/.check/.k8s_network_installed
       - name: Installing Kubernetes Dashboard
-        shell: > 
+        shell: >
           kubectl apply -f
           https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0-beta8/aio/deploy/recommended.yaml &&
-          touch .kube/.k8s_dashboard_installed
-        args: 
+          touch .kube/.check/.k8s_dashboard_installed
+        args:
           chdir: "{{ home_directory }}"
-          creates: .kube/.k8s_dashboard_installed
+          creates: .kube/.check/.k8s_dashboard_installed
       - name: Creating Kubernetes Dashboard administrator
-        shell: > 
+        shell: >
           kubectl apply -f
-          .kube/k8s-dashboard-admin.yaml && 
-          touch .kube/.k8s_dashboard_admin_installed
-        args: 
+          .kube/k8s-dashboard-admin.yaml &&
+          touch .kube/.check/.k8s_dashboard_admin_installed
+        args:
           chdir: "{{ home_directory }}"
-          creates: .kube/.k8s_dashboard_admin_installed
+          creates: .kube/.check/.k8s_dashboard_admin_installed
       - name: Creating Kubernetes Dashboard cluster binding
-        shell: > 
+        shell: >
           kubectl apply -f
           .kube/k8s-dashboard-binding.yaml &&
-          touch .kube/.k8s_dashboard_binding_installed
-        args: 
+          touch .kube/.check/.k8s_dashboard_binding_installed
+        args:
           chdir: "{{ home_directory }}"
-          creates: .kube/.k8s_dashboard_binding_installed
+          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 
+        shell: >
+          kubectl -n kubernetes-dashboard describe secret
           $(kubectl -n kubernetes-dashboard get secret | grep admin-user | awk '{print $1}')
         register: token
       - debug: var=token
-- 
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