sap_vm_provision: Azure compatibility update and fixes

roles/sap_vm_provision/PLATFORM_GUIDANCE.md

@@ -243,6 +243,51 @@ az role assignment create --assignee "$AZ_SERVICE_PRINCIPAL_ID" \
 az ad sp credential reset --name $AZ_CLIENT_ID
 ```
 
+It is recommended to create new Azure custom role with detailed actions to improve security.
+```json
+{
+    "properties": {
+        "roleName": "ansible-sap-automation",
+        "description": "Custom role for SAP LinuxLab ansible automation.",
+        "permissions": [
+            {
+                "actions": [
+                    "Microsoft.Authorization/roleAssignments/read",
+                    "Microsoft.Authorization/roleAssignments/write",
+                    "Microsoft.Authorization/roleDefinitions/read",
+                    "Microsoft.Authorization/roleDefinitions/write",
+                    "Microsoft.Compute/disks/read",
+                    "Microsoft.Compute/disks/write",
+                    "Microsoft.Compute/sshPublicKeys/read",
+                    "Microsoft.Compute/sshPublicKeys/write",
+                    "Microsoft.Compute/virtualMachines/instanceView/read",
+                    "Microsoft.Compute/virtualMachines/read",
+                    "Microsoft.Compute/virtualMachines/write",
+                    "Microsoft.Network/loadBalancers/backendAddressPools/join/action",
+                    "Microsoft.Network/loadBalancers/read",
+                    "Microsoft.Network/loadBalancers/write",
+                    "Microsoft.Network/networkInterfaces/join/action",
+                    "Microsoft.Network/networkInterfaces/read",
+                    "Microsoft.Network/networkInterfaces/write",
+                    "Microsoft.Network/networkSecurityGroups/read",
+                    "Microsoft.Network/privateDnsZones/A/read",
+                    "Microsoft.Network/privateDnsZones/A/write",
+                    "Microsoft.Network/privateDnsZones/read",
+                    "Microsoft.Network/privateDnsZones/virtualNetworkLinks/read",
+                    "Microsoft.Network/virtualNetworks/privateDnsZoneLinks/read",
+                    "Microsoft.Network/virtualNetworks/subnets/join/action",
+                    "Microsoft.Network/virtualNetworks/subnets/read",
+                    "Microsoft.Resources/subscriptions/resourceGroups/read",
+                ],
+                "notActions": [],
+                "dataActions": [],
+                "notDataActions": []
+            }
+        ]
+    }
+}
+```
+
 Note: MS Azure VMs provisioned will contain Hyper-V Hypervisor virtual interfaces using eth* on the OS, and when Accelerated Networking (AccelNet) is enabled for the MS Azure VM then the Mellanox SmartNIC/DPU SR-IOV Virtual Function (VF) may use enP* on the OS. For further information, see [MS Azure - How Accelerated Networking works](https://learn.microsoft.com/en-us/azure/virtual-network/accelerated-networking-how-it-works). During High Availability executions, failures may occur and may require additional variable 'sap_ha_pacemaker_cluster_vip_client_interface' to be defined.
 
 </details>

roles/sap_vm_provision/tasks/platform_ansible/aws_ec2_vs/execute_provision.yml

@@ -171,8 +171,8 @@
       ansible.builtin.replace:
         path: /root/.ssh/authorized_keys
         backup: true
-        regexp: '(^.*ssh-rsa)'
-        replace: 'ssh-rsa'
+        regexp: '(^.*ssh-)'  # Added support for ssh-ed25519
+        replace: 'ssh-'
 
     - name: Permit root login
       register: __sap_vm_provision_task_os_sshd_config

roles/sap_vm_provision/tasks/platform_ansible/msazure_vm/execute_main.yml

@@ -178,6 +178,10 @@
       ansible.builtin.include_tasks:
         file: common/set_ansible_vars_storage.yml
 
+    - name: Register Package Repositories for OS Images with Bring-Your-Own-Subscription (BYOS)
+      ansible.builtin.include_tasks:
+        file: common/register_os.yml
+
 
 - name: Ansible Task block to execute on target inventory hosts - High Availability
   delegate_to: "{{ inventory_hostname }}"

roles/sap_vm_provision/tasks/platform_ansible/msazure_vm/execute_provision.yml

@@ -134,6 +134,9 @@
   vars:
     ansible_ssh_private_key_file: "{{ delegate_sap_vm_provision_ssh_host_private_key_file_path }}"
     ansible_ssh_common_args: -o ConnectTimeout=180 -o ControlMaster=auto -o ControlPersist=3600s -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ForwardX11=no -o ProxyCommand='ssh -W %h:%p {{ delegate_sap_vm_provision_bastion_user }}@{{ delegate_sap_vm_provision_bastion_public_ip }} -p {{ delegate_sap_vm_provision_bastion_ssh_port }} -i {{ delegate_sap_vm_provision_ssh_bastion_private_key_file_path }} -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null'
+  # Ensure that VM has enough time to start before connecting
+  retries: 60
+  delay: 10
 
 #- name: Output disks
 #  ansible.builtin.debug:
@@ -270,8 +273,8 @@
       ansible.builtin.replace:
         path: /root/.ssh/authorized_keys
         backup: true
-        regexp: '(^.*ssh-rsa)'
-        replace: 'ssh-rsa'
+        regexp: '(^.*ssh-)'  # Added support for ssh-ed25519
+        replace: 'ssh-'
 
     - name: Permit root login
       register: __sap_vm_provision_task_os_sshd_config

roles/sap_vm_provision/tasks/platform_ansible/msazure_vm/execute_setup_ha.yml

@@ -251,6 +251,39 @@
     tenant: "{{ sap_vm_provision_msazure_tenant_id }}"
     client_id: "{{ sap_vm_provision_msazure_app_client_id }}"
     secret: "{{ sap_vm_provision_msazure_app_client_secret }}"
+    state: present
+  # Custom Role can exist within different Subscriptions under same tenant
+  # Described in: https://github.com/Azure/azure-powershell/issues/4365#issuecomment-351171763
+  # Error is ignored and validated in next step
+  ignore_errors: true
+
+  # Second attempt to create Role with last segment of Subscription ID
+- name: MS Azure IAM Role - Definition Subscription specific
+  when:
+    - __sap_vm_provision_task_msazure_iam_role_fencing is defined
+    - __sap_vm_provision_task_msazure_iam_role_fencing.failed
+  no_log: "{{ __sap_vm_provision_no_log }}"
+  register: __sap_vm_provision_task_msazure_iam_role_fencing_sub
+  azure.azcollection.azure_rm_roledefinition:
+    name: "Linux Fence Agent Role {{ sap_vm_provision_msazure_subscription_id.split('-')[-1] }}"
+    description: "Allows to power-off and start virtual machines {{ sap_vm_provision_msazure_subscription_id.split('-')[-1] }}"
+    assignable_scopes:
+      - "/subscriptions/{{ sap_vm_provision_msazure_subscription_id }}"
+    permissions:
+      - actions:
+          - "Microsoft.Compute/*/read"
+          - "Microsoft.Compute/virtualMachines/powerOff/action"
+          - "Microsoft.Compute/virtualMachines/start/action"
+      # - data_actions:
+      # - not_actions:
+      # - not_data_actions:
+    # Azure credentials
+    subscription_id: "{{ sap_vm_provision_msazure_subscription_id }}"
+    tenant: "{{ sap_vm_provision_msazure_tenant_id }}"
+    client_id: "{{ sap_vm_provision_msazure_app_client_id }}"
+    secret: "{{ sap_vm_provision_msazure_app_client_secret }}"
+    state: present
+
 
 - name: MS Azure - GenericRestClient call to Virtual Machine API to identify Managed Service Identity (MSI)
   no_log: "{{ __sap_vm_provision_no_log }}"
@@ -275,7 +308,8 @@
   azure.azcollection.azure_rm_roleassignment:
     #auth_source: msi
     role_definition_id:
-      "{{ __sap_vm_provision_task_msazure_iam_role_fencing.id }}"
+      "{{ __sap_vm_provision_task_msazure_iam_role_fencing.id if __sap_vm_provision_task_msazure_iam_role_fencing.id is defined
+        else __sap_vm_provision_task_msazure_iam_role_fencing_sub.id }}"
     scope: "/subscriptions/{{ sap_vm_provision_msazure_subscription_id }}"
     assignee_object_id: "{{ host_node.response[0].identity.principalId | default(none) }}"
     # Azure credentials
@@ -439,7 +473,7 @@
         __probe_element:
           name: "{{ sap_vm_provision_ha_load_balancer_name_nwas + '-probe-hc-vip' + (sapinstance_index_nr | string) }}"
           protocol: Tcp
-          port: "{{ ('5555' + (sapinstance_index_nr + 1)) | string | int }}" # "{{ ('626' + sapinstance_item | string) | int }}"
+          port: "{{ ('5555' + (sapinstance_index_nr + 1) | string) | int }}" # "{{ ('626' + sapinstance_item | string) | int }}"
           interval: 5
           fail_count: 2
       when:

roles/sap_vm_provision/tasks/platform_ansible/msazure_vm/post_deployment_execute.yml

@@ -123,7 +123,7 @@
         lb_probes1: "{{ lb_probes1 | default([]) + [__probe_element] }}"
       vars:
         __probe_element:
-          name: "{{ sap_vm_provision_ha_load_balancer_name_hana + '-probe-hc-vip' + (sapinstance_index_nr | string) }}"
+          name: "{{ sap_vm_provision_ha_load_balancer_name_hana + '-probe-hc-vip' + (healthcheck_index_nr | string) }}"
           protocol: Tcp
           port: "{{ healthcheck_item }}"
           interval: 5
@@ -155,7 +155,7 @@
         lb_probes2: "{{ lb_probes2 | default([]) + [__probe_element] }}"
       vars:
         __probe_element:
-          name: "{{ sap_vm_provision_ha_load_balancer_name_nwas + '-probe-hc-vip' + (sapinstance_index_nr | string) }}"
+          name: "{{ sap_vm_provision_ha_load_balancer_name_nwas + '-probe-hc-vip' + (healthcheck_index_nr | string) }}"
           protocol: Tcp
           port: "{{ healthcheck_item }}"
           interval: 5