[EDGEPOD-186] Add Ansible playbook for Aether Edge

Change-Id: I71d73a5a4fdf7e5ccf12df924597af6ab90a68b4
diff --git a/aether-playbook/roles/k8s/tasks/docker.yml b/aether-playbook/roles/k8s/tasks/docker.yml
new file mode 100644
index 0000000..7d90bbb
--- /dev/null
+++ b/aether-playbook/roles/k8s/tasks/docker.yml
@@ -0,0 +1,70 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+---
+
+- name: Install dependencies for Docker
+  apt:
+    name:
+      - apt-transport-https
+      - ca-certificates
+      - curl
+      - software-properties-common
+    state: present
+  tags: docker
+
+- name: Add Docker GPG key
+  shell: |
+    curl -sSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+  args:
+    warn: false
+  tags: docker
+
+- name: Add Docker repository
+  shell: |
+    add-apt-repository \
+     "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
+     $(lsb_release -cs) \
+     stable"
+  args:
+    warn: false
+  tags: docker
+
+- name: Install Docker CE
+  apt:
+    name: docker-ce={{ docker_version }}
+    state: present
+    update_cache: yes
+  tags: docker
+
+- name: Add current user to "docker" group
+  user:
+    name: "{{ ansible_user }}"
+    groups: docker
+    append: true
+  tags: docker
+
+- name: Configure Docker daemon options
+  copy:
+    dest: /etc/docker/daemon.json
+    content: "{{ docker_daemon_options | to_json }}"
+  register: docker_register_options
+  notify: restart docker
+  tags: docker
+
+- name: Reload systemd daemon
+  systemd:
+    daemon_reload: true
+  when: docker_register_options is changed
+  tags: docker
diff --git a/aether-playbook/roles/k8s/tasks/k8s.yml b/aether-playbook/roles/k8s/tasks/k8s.yml
new file mode 100644
index 0000000..1561d1a
--- /dev/null
+++ b/aether-playbook/roles/k8s/tasks/k8s.yml
@@ -0,0 +1,48 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+---
+- name: Initialize k8s role
+  set_fact:
+    k8s_roles: ""
+  tags: k8s
+
+- name: Add k8s master role
+  set_fact:
+    k8s_roles: "{{ k8s_roles }} --etcd --controlplane"
+  when: "'kube-master' in group_names"
+  tags: k8s
+
+- name: Add k8s worker role
+  set_fact:
+    k8s_roles: "{{ k8s_roles }} --worker"
+  when: "'kube-worker' in group_names"
+  tags: k8s
+
+- name: Print k8s roles
+  debug:
+    msg: k8s_roles {{ k8s_roles }}
+  tags: k8s
+
+- name: Install k8s
+  command: >-
+    docker run -d --privileged --restart=unless-stopped --net=host
+    --volume /etc/kubernetes:/etc/kubernetes
+    --volume /var/run:/var/run
+    rancher/rancher-agent:v2.3.3
+    --server https://rancher.central.aetherproject.net
+    --token {{ rancher_cluster_token }}
+    --ca-checksum {{ rancher_ca_checksum }}
+    {{ k8s_roles }}
+  tags: k8s
diff --git a/aether-playbook/roles/k8s/tasks/main.yml b/aether-playbook/roles/k8s/tasks/main.yml
new file mode 100644
index 0000000..0a357a6
--- /dev/null
+++ b/aether-playbook/roles/k8s/tasks/main.yml
@@ -0,0 +1,26 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+---
+- include_tasks: pre-install.yml
+  tags:
+    - etc-hosts
+    - ntp
+    - swapoff
+
+- include_tasks: docker.yml
+  tags: docker
+
+- include_tasks: k8s.yml
+  tags: k8s
diff --git a/aether-playbook/roles/k8s/tasks/pre-install.yml b/aether-playbook/roles/k8s/tasks/pre-install.yml
new file mode 100644
index 0000000..b0b2bfa
--- /dev/null
+++ b/aether-playbook/roles/k8s/tasks/pre-install.yml
@@ -0,0 +1,70 @@
+# Copyright 2020-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+---
+- name: Run "apt update"
+  apt:
+    update_cache: yes
+
+- name: Install ntp
+  apt: name=ntp state=present
+  when: ntp_enabled | bool
+  tags: ntp
+
+- name: Configure ntp file
+  template: src=etc/ntp.conf.j2 dest=/etc/ntp.conf
+  when: ntp_enabled | bool
+  notify: restart ntp
+  tags: ntp
+
+- name: Start the ntp service
+  service: name=ntp state=started enabled=yes
+  when: ntp_enabled | bool
+  tags: ntp
+
+- name: Set timezone to {{ ntp_timezone }}
+  timezone:
+    name: "{{ ntp_timezone }}"
+  when: ntp_enabled | bool
+  tags: ntp
+
+- name: Remove swapfile from /etc/fstab
+  mount:
+    name: "{{ item }}"
+    fstype: swap
+    state: absent
+  with_items:
+    - swap
+    - none
+  tags: swapoff
+
+- name: Check if swap is enabled
+  command: /sbin/swapon -s
+  register: swapon
+  changed_when: no
+  tags: swapoff
+
+- name: Disable swap
+  command: /sbin/swapoff -a
+  when: swapon.stdout
+  tags: swapoff
+
+- name: Add internal service domains to /etc/hosts
+  become: yes
+  lineinfile:
+    path: /etc/hosts
+    line: "{{ item['ip'] }}\t\t{{ item['name'] }}"
+    state: present
+  with_items: "{{ etc_hosts_entries }}"
+  tags: etc-hosts