Creating and Managing Subnets Administrative Tasks

 

Creating a Subnet

To create a subnet using the OCI Console:

1. Go to the OCI Console.

2. Click Networking > Virtual Cloud Networks.

3. Click the name of the VCN in which you want to create the subnet.

4. Click Subnets.

5. Click Create Subnet.

6. Enter the required information, such as the subnet name, CIDR block, and route table.

7. Click Create Subnet.

To create a subnet using the OCI CLI:

1. Run the following command:

oci subnet create --name <subnet_name> --cidr-block <cidr_block> --vcn-id <vcn_id> --route-table-id <route_table_id>

Managing Subnets

Once you have created a subnet, you can manage it using the OCI Console or the OCI CLI.

Using the OCI Console:

1. Go to the OCI Console.

2. Click Networking > Virtual Cloud Networks.

3. Click the name of the VCN in which the subnet is located.

4. Click Subnets.

5. Click the name of the subnet that you want to manage.

6. Click Edit.

7. Make the desired changes to the subnet, such as the subnet name, CIDR block, or route table.

8. Click Save Changes.

Using the OCI CLI:

To manage a subnet using the OCI CLI, you can use the following commands:

Get subnet information:

oci subnet get --id <subnet_id>

Update subnet information:

oci subnet update --id <subnet_id> --name <subnet_name> --cidr-block <cidr_block> --route-table-id <route_table_id>

Delete subnet:

oci subnet delete --id <subnet_id>

OCI CLI Examples

Here are some examples of using the OCI CLI to create and manage subnets:

# Create a subnet

oci subnet create --name my-subnet --cidr-block 10.0.0.0/24 --vcn-id ocid1.vcn.oc1.iad.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

# Get subnet information

oci subnet get --id ocid1.subnet.oc1.iad.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

# Update subnet information

oci subnet update --id ocid1.subnet.oc1.iad.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa --name new-subnet --cidr-block 10.0.1.0/24

# Delete subnet

oci subnet delete --id ocid1.subnet.oc1.iad.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Creating and managing subnets is an important part of administering a VCN in OCI. You can use the OCI Console or the OCI CLI to create and manage subnets.

Tenancy Administrative Tasks with OCI Console, and OCI CLI

Creating a Tenancy

To create a tenancy using the OCI Console:

1. Go to the OCI Console.

2. Click Identify > Tenancies.

3. Click Create Tenancy.

4. Enter the required information and click Create Tenancy.

To create a tenancy using the OCI CLI:

1. Install the OCI CLI.

2. Run the following command:

oci tenancy create --name <tenancy_name> --compartment-ocid <compartment_ocid>

Creating a User

To create a user using the OCI Console:

1. Go to the OCI Console.

2. Click Identify > Users.

3. Click Create User.

4. Enter the required information and click Create User.

To create a user using the OCI CLI:

1. Run the following command:

oci user create --name <user_name> --email <user_email> --password <user_password>

Assigning Permissions to a User

To assign permissions to a user using the OCI Console:

1. Go to the OCI Console.

2. Click Identify > Users.

3. Click the user's name.

4. Click Assign Permissions.

5. Select the permissions you want to assign to the user.

6. Click Assign.

To assign permissions to a user using the OCI CLI:

1. Run the following command:

oci user policy assign --user-ocid <user_ocid> --policy-name <policy_name>

Creating a Compartment

To create a compartment using the OCI Console:

1. Go to the OCI Console.

2. Click Govern > Compartments.

3. Click Create Compartment.

4. Enter the required information and click Create Compartment.

To create a compartment using the OCI CLI:

1. Run the following command:

oci compartment create --name <compartment_name> --description <compartment_description> --compartment-id-in-parent <parent_compartment_ocid>

Creating a Resource

To create a resource using the OCI Console:

1. Go to the OCI Console.

2. Click the type of resource you want to create.

3. Enter the required information and click Create.

To create a resource using the OCI CLI:

1. Run the appropriate command for the type of resource you want to create. For example, to create a compute instance, you would run the following command:

oci compute instance create --name <instance_name> --shape <shape_name> --image-id <image_id> --compartment-id <compartment_ocid>

Monitoring Your Tenancy

To monitor your tenancy using the OCI Console:

1. Go to the OCI Console.

2. Click Monitoring.

3. Select the metrics you want to monitor.

To monitor your tenancy using the OCI CLI:

1. Run the following command to get a list of all the metrics that are available:

oci monitoring metric list

2. Once you have a list of metrics, you can run the following command to get the value of a specific metric:

oci monitoring metric get --metric-name <metric_name> --resource-id <resource_ocid>

Troubleshooting Tenancy Issues

To troubleshoot tenancy issues using the OCI Console:

1. Go to the OCI Console.

2. Click Troubleshooting.

3. Select the area of the tenancy that you are having problems with.

4. Follow the instructions to troubleshoot the problem.

To troubleshoot tenancy issues using the OCI CLI:

1. Run the following command to get a list of all the troubleshooting logs that are available:

oci troubleshooting log list

2. Once you have a list of logs, you can run the following command to get the content of a specific log:

oci troubleshooting log get --log-name <log_name>

By following these steps, you can perform a variety of tenancy administrative tasks using the OCI Console and the OCI CLI. You can also use these tools to troubleshoot tenancy issues. 

Tenancy Administration

As a tenancy administrator, you are responsible for managing and securing your tenancy. This includes tasks such as:

1. Creating and managing users and groups
2. Assigning permissions to users and groups
3. Creating and managing compartments
4. Creating and managing resources
5. Monitoring and managing costs
6. Troubleshooting and resolving issue

Tenancy Troubleshooting

Some of the most common tenancy troubleshooting issues include:

Connectivity issues: This can be caused by a variety of factors, such as network misconfiguration, firewall issues, or routing problems.

Performance issues: This can be caused by a variety of factors, such as overloaded resources, inefficient applications, or network congestion.

Security issues: This can be caused by a variety of factors, such as misconfigured permissions, vulnerabilities in applications, or malware infections.

To troubleshoot tenancy issues, you can use a variety of tools and resources, such as the OCI Console, the OCI CLI, and the OCI SDK. You can also contact Oracle support for assistance.

Here are some additional tips for tenancy administration and troubleshooting:

Use compartments to organize your resources: Compartments allow you to organize your resources into logical groups. This can make it easier to manage and troubleshoot your environment.

Implement least privilege access: Only grant users the permissions they need to perform their job duties. This can help to reduce the risk of unauthorised access to your resources.

Monitor your tenancy: Use the OCI Console, the OCI CLI, or the OCI SDK to monitor your tenancy for performance issues and security threats.

Have a plan for disaster recovery: Create a plan for how you will recover your tenancy in the event of a disaster. This plan should include steps for backing up your data and restoring your resources.

By following these tips, you can help to ensure that your tenancy is secure, performant, and reliable.

Oracle Cloud Infrastructure (OCI) - Tenancy

 

A Tenancy is a unique customer account in Oracle Cloud Infrastructure (OCI). A tenancy is a logical container for all of your OCI resources, such as compute instances, storage, and networking. You can create multiple tenancies in OCI, but each tenancy is isolated from other tenancies. This means that you can control who has access to your resources and how they are used.

Here are some multiple scenario based examples of how tenancies can be used:

Scenario 1:  You are a company with multiple departments, such as sales, marketing, and engineering. Each department has its own set of requirements, so you create a separate tenancy for each department. This allows you to isolate the resources for each department and to control who has access to them.

Scenario 2: You are a developer who is working on a new application. You want to create a separate tenancy for the application so that you can test it and deploy it to production without affecting your other applications.

Scenario 3: You are a consultant who is working with multiple clients. You want to create a separate tenancy for each client so that you can isolate their resources and to control who has access to them.

Scenario 4: You are a company that is expanding into new markets. You want to create a separate tenancy for each market so that you can comply with local regulations and to improve performance.

Tenancies can also be used to create complex multi-tenancy environments. 

For example, 

    You can use tenancies to create a separate tenancy for each customer or partner. This allows you to isolate their resources and to provide them with a customised experience.

Here are some additional benefits of using tenancies:

Security: Tenancies can help to protect your resources from unauthorised access.

Compliance: Tenancies can help you to comply with local regulations.

Performance: Tenancies can improve performance by isolating your resources from other tenancies.

Scalability: Tenancies are scalable and can grow with your business.

Cost Optimisation: Tenancies can help you to optimise your costs by isolating your resources and by using different pricing models for different tenancies.

If you are planning to deploy applications to OCI, you should consider using tenancies. Tenancies can help you to create a secure, compliant, performant, scalable, and cost-effective environment for your applications.