roles/k8s/main: Wait for docker

Install kubelet environment file on nodes and master

1 files changed, 47 insertions, 7 deletions

diff --git a/roles/k8s/main.yml b/roles/k8s/main.yml
index 0bd4e7e..ca002ca 100644
--- a/roles/k8s/main.yml
+++ b/roles/k8s/main.yml
@@ -1,15 +1,20 @@
 ---
 # Target: centos8
-- hosts: k8s
+- name: Install Kubernetes Cluster
+  hosts: k8s_master, k8s_node
+
   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
@@ -17,10 +22,12 @@
       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
@@ -32,11 +39,13 @@
         - sudo
         - tc
         - git
+
   - name: Creating docker directory
     file:
       path: /etc/docker
       state: directory
       mode: '0755'
+
   - name: Copying Docker daemon configuration
     copy:
       src: daemon.json
@@ -45,11 +54,13 @@
       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
@@ -57,19 +68,28 @@
       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: Wait for Docker
+    wait_for:
+      path: /var/run/docker.pid
+      state: present
+
   - name: Restarting Docker due to daemon config change
     systemd:
       name: docker
       state: restarted
     when: dockerDaemonConfig.changed
+
   - name: Adding Kubernetes repository
     yum_repository:
       name: kubernetes
@@ -78,6 +98,7 @@
       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
@@ -85,27 +106,33 @@
       name:
         - kubelet-{{ k8s_version }}-0
         - kubeadm-{{ k8s_version }}-0
+
+  - name: Copying kubelet environment file
+    copy:
+      src: kubelet
+      dest: /etc/sysconfig/kubelet
+      mode: '0644'
+
   - name: Enabling kubelet service
     systemd:
       name: kubelet
       enabled: yes
 
 - 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 &&
@@ -115,6 +142,7 @@
         creates: .k8s_cluster_initialized
       register: output
     - debug: var=output
+
     - name: Creating kube folder
       file:
         path: "{{ item }}"
@@ -125,6 +153,7 @@
       with_items:
         - "{{ home_directory }}/.kube"
         - "{{ home_directory }}/.kube/.check"
+
     - name: Copying Kubernetes config file to home folder
       copy:
         src: /etc/kubernetes/admin.conf
@@ -133,6 +162,7 @@
         group: "{{ username }}"
         mode: '0644'
         remote_src: yes
+
     - name: Copying Kubernetes dashboard user config
       copy:
         src: k8s-dashboard-admin.yaml
@@ -140,6 +170,7 @@
         owner: "{{ username }}"
         group: "{{ username }}"
         mode: '0644'
+
     - name: Copying Kubernetes dashboard bind config
       copy:
         src: k8s-dashboard-binding.yaml
@@ -147,7 +178,9 @@
         owner: "{{ username }}"
         group: "{{ username }}"
         mode: '0644'
+
     - block:
+
       - name: Bringing up pod network
         shell: >
           kubectl apply -f
@@ -156,6 +189,7 @@
         args:
           chdir: "{{ home_directory }}"
           creates: .kube/.check/.k8s_network_installed
+
       - name: Installing Kubernetes Dashboard
         shell: >
           kubectl apply -f
@@ -164,6 +198,7 @@
         args:
           chdir: "{{ home_directory }}"
           creates: .kube/.check/.k8s_dashboard_installed
+
       - name: Creating Kubernetes Dashboard administrator
         shell: >
           kubectl apply -f
@@ -172,6 +207,7 @@
         args:
           chdir: "{{ home_directory }}"
           creates: .kube/.check/.k8s_dashboard_admin_installed
+
       - name: Creating Kubernetes Dashboard cluster binding
         shell: >
           kubectl apply -f
@@ -180,11 +216,13 @@
         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
@@ -193,11 +231,13 @@
         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 }}"
\ No newline at end of file
+      become_user: "{{ username }}"