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VMware Exam 3V0-31.22 Topic 2 Question 1 Discussion
Topic #: 2
TASK 12
As the Cloud Administrator, you have been tasked to update the Atlas App cloud template in the Atlas project. Perform the following tasks:
1. Edit the existing cloud template Atlas App. such that it is a multi-tier application that meets the following requirements:
* 2 Web servers
* 1 Database server
* The Database server is always built before the Web servers
* 2 NSX Networks:
o The first network should use the NAT feature
* Resource Name: external
* Second network should be an existing network
* Resource Name: internal o All networks should be restricted to use only the Atlas project networks
o The internal network should be restricted to use only the nsx-atlas-existing NSX network
* Both the web and db VMs should be connected to the internal network
2. Add an NSX load balancer to provide access from the outside to the two Web servers:
* Resource Name: IbWeb
* Port: 443
* Protocol: HTTPS
3. Assign an existing Security Group to the Web servers:
* Resource Name: sgWeb
* Instances: Web Sewers
* Constraint Tag Key: sg
* Constraint Tag Value: atlasweb
To update the Atlas App cloud template to meet the specified requirements, you would perform the following steps in vRealize Automation:
Task 1: Edit the Cloud Template for Multi-tier Application
Access the vRealize Automation console and navigate to Design > Cloud Templates.
Open the existing cloud template named ''Atlas App''.
Modify the template to include:
2 Web Server Instances: Define two instances of the web server component.
1 Database Server Instance: Define a single instance of the database server component.
Build Order: Ensure the database server is set to be built before the web servers by adjusting the dependsOn property.
2 NSX Networks:
External Network (NAT): Create a network resource with the name external and configure it to use NAT.
Internal Network (Existing): Create a network resource with the name internal and link it to the existing nsx-atlas-existing network.
Restrict Networks: Apply constraints to ensure that only networks associated with the Atlas project are used.
Task 2: Add NSX Load Balancer
In the cloud template, add an NSX load balancer resource with the name lbWeb.
Configure the load balancer to distribute traffic to the web servers on port 443 using the HTTPS protocol.
Task 3: Assign Security Group to Web Servers
Define a security group resource with the name sgWeb.
Assign this security group to the web server instances.
Use constraint tags with the key sg and value atlasweb to ensure the security group is applied correctly.
Here is a simplified example of what the YAML configuration might look like:
resources:
dbServer:
type: Cloud.Machine
properties:
...
webServer1:
type: Cloud.Machine
properties:
dependsOn: dbServer
...
webServer2:
type: Cloud.Machine
properties:
dependsOn: dbServer
...
external:
type: Cloud.Network
properties:
networkType: nat
...
internal:
type: Cloud.Network
properties:
networkType: existing
constraints:
- tag: 'nsx-atlas-existing'
...
lbWeb:
type: Cloud.LoadBalancer
properties:
port: 443
protocol: HTTPS
...
sgWeb:
type: Cloud.SecurityGroup
properties:
instances: [webServer1, webServer2]
constraints:
- tag: 'sg:atlasweb'
...
Make sure to adjust the properties and configurations as needed to fit the specific details of your environment and the Atlas project. After updating the cloud template, validate the changes and ensure that the template meets all the requirements before saving.
Ashleigh
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