Ansible - Make conversion host record creation idempotent

ansible/oVirt.v2v-conversion-host/tasks/install-manageiq-conversion-host.yml

@@ -1,56 +1,61 @@
 ---
 - include_tasks: "install-manageiq-build-conversion-host-resource-{{ v2v_host_type }}.yml"
 
-- uri:
-    url: "{{ manageiq_url }}/api/conversion_hosts"
-    user: "{{ manageiq_username }}"
-    password: "{{ manageiq_password }}"
-    method: "POST"
-    validate_certs: "{{ manageiq_validate_certs | default(true) }}"
-    body_format: "json"
-    body:
-      action: "create"
-      resource: "{{ manageiq_post_conversion_host_resource }}"
-  when:
-    - "manageiq_post_conversion_host_resource is defined"
-
 - block:
-    - set_fact:
-        manageiq_conversion_host_resource_tags:
-          - category: "v2v_transformation_host"
-            name: "true"
-
-    - set_fact:
-        manageiq_tag_vddk_transport:
-          - category: "v2v_transformation_method"
-            name: "vddk"
-
-    - set_fact:
-        manageiq_tag_ssh_transport:
-          - category: "v2v_transformation_method"
-            name: "ssh"
-
-    - set_fact:
-        manageiq_conversion_host_resource_tags: "{{ manageiq_conversion_host_resource_tags }} + {{ manageiq_tag_vddk_transport }}"
-        when:
-          - "'vddk' in v2v_transport_methods"
-
-    - set_fact:
-        manageiq_conversion_host_resource_tags: "{{ manageiq_conversion_host_resource_tags }} + {{ manageiq_tag_ssh_transport }}"
-        when:
-          - "'ssh' in v2v_transport_methods"
-
-    - name: Tag as conversion host
+    - include_tasks: "install-manageiq-remove-existing-conversion-host.yml"
+
+    - name: Create the conversion host record
       uri:
-        url: "{{ manageiq_post_conversion_host_resource_href }}/tags"
+        url: "{{ manageiq_url }}/api/conversion_hosts"
         user: "{{ manageiq_username }}"
         password: "{{ manageiq_password }}"
         method: "POST"
         validate_certs: "{{ manageiq_validate_certs | default(true) }}"
         body_format: "json"
         body:
-          action: "assign"
-          resources: "{{ manageiq_conversion_host_resource_tags }}"
+          action: "create"
+          resource: "{{ manageiq_post_conversion_host_resource }}"
+
+    - block:
+        - set_fact:
+            manageiq_conversion_host_resource_tags:
+              - category: "v2v_transformation_host"
+                name: "true"
+
+        - set_fact:
+            manageiq_tag_vddk_transport:
+              - category: "v2v_transformation_method"
+                name: "vddk"
+
+        - set_fact:
+            manageiq_tag_ssh_transport:
+              - category: "v2v_transformation_method"
+                name: "ssh"
+
+        - set_fact:
+            manageiq_conversion_host_resource_tags: "{{ manageiq_conversion_host_resource_tags }} + {{ manageiq_tag_vddk_transport }}"
+            when:
+              - "'vddk' in v2v_transport_methods"
+
+        - set_fact:
+            manageiq_conversion_host_resource_tags: "{{ manageiq_conversion_host_resource_tags }} + {{ manageiq_tag_ssh_transport }}"
+            when:
+              - "'ssh' in v2v_transport_methods"
+
+        - name: Tag as conversion host
+          uri:
+            url: "{{ manageiq_post_conversion_host_resource_href }}/tags"
+            user: "{{ manageiq_username }}"
+            password: "{{ manageiq_password }}"
+            method: "POST"
+            validate_certs: "{{ manageiq_validate_certs | default(true) }}"
+            body_format: "json"
+            body:
+              action: "assign"
+              resources: "{{ manageiq_conversion_host_resource_tags }}"
+
+      when:
+        - "manageiq_post_conversion_host_resource_href is defined"
 
   when:
-    - "manageiq_post_conversion_host_resource_href is defined"
+    - "manageiq_post_conversion_host_resource is defined"

ansible/oVirt.v2v-conversion-host/tasks/install-manageiq-remove-existing-conversion-host.yml

@@ -0,0 +1,26 @@
+---
+- name: Identify conversion hosts with same name
+  uri:
+    url: "{{ manageiq_url }}/api/conversion_hosts?expand=resources&attributes=resource&filter[]=name={{ manageiq_post_conversion_host_resource.name }}"
+    user: "{{ manageiq_username }}"
+    password: "{{ manageiq_password }}"
+    method: "GET"
+    validate_certs: "{{ manageiq_validate_certs | default(true) }}"
+  register: manageiq_conversion_hosts_json
+
+- block:
+    - name: Isolate the relevant conversion host
+      set_fact:
+        manageiq_existing_conversion_host: "{{ manageiq_conversion_hosts_json.json | json_query('resources[*]') | first }}"
+
+    - name: Delete the existing conversion host record
+      uri:
+        url: "{{ manageiq_existing_conversion_host.href }}"
+        user: "{{ manageiq_username }}"
+        password: "{{ manageiq_password }}"
+        method: "DELETE"
+        validate_certs: "{{ manageiq_validate_certs | default(true) }}"
+        status_code: 204
+
+  when:
+    - "manageiq_conversion_hosts_json.json.subcount != 0"