added support for docker-compose on aarch64

roles/docker_host/tasks/ubuntu.yml

@@ -45,9 +45,13 @@
 
 #install compose:
 
-- name: download compose
-#  shell: curl -L https://github.com/docker/compose/releases/download/{{ compose_ver }}/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
+- name: download compose for x86_64
   shell: curl -s https://api.github.com/repos/docker/compose/releases/latest | grep browser_download_url | grep docker-compose-linux-x86_64 | grep -v sha256 | cut -d '"' -f 4 | wget -O /usr/local/bin/docker-compose -qi -
+  when: ansible_architecture == 'x86_64'
+
+- name: download compose for aarch64
+  shell: curl -s https://api.github.com/repos/docker/compose/releases/latest | grep browser_download_url | grep docker-compose-linux-aarch64 | grep -v sha256 | cut -d '"' -f 4 | wget -O /usr/local/bin/docker-compose -qi -
+  when: ansible_architecture == 'aarch64'
 
 - name: make compose executable
-  shell: chmod +x /usr/local/bin/docker-compose
+  shell: chmod +x /usr/local/bin/docker-compose