Merge pull request #4 from andreygubarev/feature-remote-images

feature remote images
andreygubarev · May 26, 2023 · adf9c8f · adf9c8f
2 parents f135b58 + 10bc99b
commit adf9c8f
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diff --git a/README.md b/README.md
@@ -8,12 +8,24 @@ Molecule QEMU driver for testing Ansible roles.
 pip install molecule-qemu
 ```
 
-## Dependencies
+Install QEMU and CDRTools on macOS:
 
 ```bash
 brew install qemu cdrtools
 ```
 
+Supported platforms:
+* MacOS 13.x (aaarch64)
+
+Support guest OS:
+* Ubuntu 20.04 LTS (aarch64)
+* Ubuntu 20.04 LTS (x86_64)
+* Debian 11 (x86_64)
+
+Support of other platforms and guest OS is possible, but not tested.
+
+# Examples
+
 ## Example scenario
 ```bash
 molecule init scenario scenario_name -d molecule-qemu
@@ -28,17 +40,17 @@ driver:
   name: molecule-qemu
 platforms:
   - name: ubuntu-1
-    image: ~/Downloads/focal-server-cloudimg-arm64.img
+    image: file:///Users/andrey/Downloads/focal-server-cloudimg-arm64.img
     image_arch: aarch64
     ssh_port: 10022
     ssh_user: ubuntu
   - name: ubuntu-2
-    image: ~/Downloads/focal-server-cloudimg-amd64.img
+    image: file:///Users/andrey/Downloads/focal-server-cloudimg-amd64.img
     image_arch: x86_64  # default
     ssh_port: 10023
     ssh_user: ubuntu
   - name: debian-1
-    image: ~/Downloads/debian-11-generic-amd64.qcow2
+    image: file:///Users/andrey/Downloads/debian-11-generic-amd64.qcow2
     image_arch: x86_64  # default
     ssh_port: 10024
     ssh_user: debian

diff --git a/molecule_qemu/playbooks/create.yml b/molecule_qemu/playbooks/create.yml
@@ -12,7 +12,7 @@
     qemu_vm_image_arch: "x86_64"
     qemu_vm_image_format: "qcow2"
     qemu_vm_memory: "1024"
-    qemu_vm_cpus: "1"
+    qemu_vm_cpus: "2"
 
   tasks:
     ### configuration #########################################################
@@ -98,6 +98,35 @@
         mode: "0644"
       when: "'aarch64' in molecule_instances | map(attribute='image_arch') | list | unique"
 
+    ### images ###############################################################
+    - name: Create images directory
+      ansible.builtin.file:
+        path: "{{ molecule_ephemeral_directory }}/run/images/"
+        state: directory
+        mode: "0755"
+
+    - name: Fetch images
+      ansible.builtin.get_url:
+        url: "{{ item }}"
+        dest: "{{ molecule_ephemeral_directory }}/run/images/{{ item | basename }}"
+        mode: "0644"
+      loop: "{{ molecule_instances | map(attribute='image') | list | unique }}"
+      loop_control:
+        label: "{{ item | basename }}"
+      register: images
+
+    - name: Get images
+      ansible.builtin.set_fact:
+        images: "{{ images.results | map(attribute='item') | list | zip(images.results | map(attribute='dest') | list) }}"
+        images_cache: {}
+
+    - name: Set images cache
+      ansible.builtin.set_fact:
+        images_cache: "{{ images_cache | combine({item[0]: item[1]}) }}"
+      loop: "{{ images }}"
+      loop_control:
+        label: "{{ item[0] | basename }}"
+
     ### cloud-init ############################################################
     - name: Create cloud-init folders
       ansible.builtin.file:
@@ -145,7 +174,7 @@
       ansible.builtin.command: >
         qemu-img create
         -f qcow2
-        -o backing_file={{ item.image }},backing_fmt={{ item.image_format }}
+        -o backing_file={{ images_cache[item.image] }},backing_fmt={{ item.image_format }}
         {{ item.path_disk }}
       args:
         creates: "{{ item.path_disk }}"