sync

.kiro/specs/fastpass-additional-control-plane/requirements.md

@@ -0,0 +1,77 @@
+# Requirements Document
+
+## Introduction
+
+This feature involves creating an Ansible role called `fastpass-additional-control-plane` that will deploy additional control plane nodes to an existing FastPass Kubernetes cluster. The role will follow the same pattern as the existing `fastpass-first-control-plane` role but will focus on joining nodes to an already initialized cluster rather than initializing a new cluster. This ensures high availability for the Kubernetes control plane by adding redundant master nodes.
+
+## Requirements
+
+### Requirement 1
+
+**User Story:** As a DevOps engineer, I want to deploy additional control plane nodes to my FastPass Kubernetes cluster, so that I can achieve high availability and fault tolerance for the cluster control plane.
+
+#### Acceptance Criteria
+
+1. WHEN the role is executed on a node THEN the system SHALL join the node to the existing Kubernetes cluster as a control plane node
+2. WHEN the role runs THEN the system SHALL configure the necessary firewall rules for control plane services
+3. WHEN the role executes THEN the system SHALL ensure the kubelet service is properly configured and running
+4. WHEN joining the cluster THEN the system SHALL use the correct join token and certificate key from the first control plane node
+5. WHEN the role completes THEN the system SHALL verify the node has successfully joined as a control plane node
+
+### Requirement 2
+
+**User Story:** As a system administrator, I want the additional control plane role to follow the same patterns as the first control plane role, so that the codebase remains consistent and maintainable.
+
+#### Acceptance Criteria
+
+1. WHEN the role is created THEN the system SHALL follow the same directory structure as fastpass-first-control-plane
+2. WHEN the role is implemented THEN the system SHALL use similar variable naming conventions and task organization
+3. WHEN the role runs THEN the system SHALL include proper error handling and idempotency checks
+4. WHEN the role executes THEN the system SHALL use the same firewall service definitions as the first control plane role
+5. WHEN the role is documented THEN the system SHALL include proper metadata headers with author, version, and description
+
+### Requirement 3
+
+**User Story:** As a cluster operator, I want the additional control plane nodes to have proper DNS configuration, so that they can be reached by their cluster names and participate in load balancing.
+
+#### Acceptance Criteria
+
+1. WHEN the role runs THEN the system SHALL configure DNS records for the additional control plane nodes
+2. WHEN DNS is configured THEN the system SHALL use the dns-manager role for consistency
+3. WHEN the role executes THEN the system SHALL ensure the node can resolve the cluster endpoint
+4. WHEN DNS setup completes THEN the system SHALL verify connectivity to the cluster API endpoint
+
+### Requirement 4
+
+**User Story:** As a DevOps engineer, I want the role to handle kubeconfig management for additional control plane nodes, so that I can manage the cluster from any control plane node.
+
+#### Acceptance Criteria
+
+1. WHEN the role completes THEN the system SHALL configure kubeconfig for the new control plane node
+2. WHEN kubeconfig is set up THEN the system SHALL use the kubeconfig-manager role for consistency
+3. WHEN the role runs THEN the system SHALL ensure proper permissions are set on kubeconfig files
+4. WHEN kubeconfig is configured THEN the system SHALL verify kubectl access works from the new node
+
+### Requirement 5
+
+**User Story:** As a system administrator, I want the role to be idempotent and handle edge cases, so that I can run it multiple times safely without causing issues.
+
+#### Acceptance Criteria
+
+1. WHEN the role is run multiple times THEN the system SHALL not attempt to rejoin an already joined node
+2. WHEN a node is already part of the cluster THEN the system SHALL skip the join process gracefully
+3. WHEN the role encounters errors THEN the system SHALL provide clear error messages and fail gracefully
+4. WHEN prerequisites are missing THEN the system SHALL report what needs to be configured first
+5. WHEN the role runs THEN the system SHALL validate that required variables are defined
+
+### Requirement 6
+
+**User Story:** As a cluster administrator, I want the role to integrate seamlessly with the existing FastPass deployment workflow, so that it can be used in the 4-step deployment process.
+
+#### Acceptance Criteria
+
+1. WHEN the role is created THEN the system SHALL be compatible with the deploy-fastpass-4step.yml playbook
+2. WHEN the role runs THEN the system SHALL work with the fastpass_control_plane[1:] host group
+3. WHEN integrated THEN the system SHALL not interfere with the first control plane initialization
+4. WHEN the role executes THEN the system SHALL depend on the first control plane node being ready
+5. WHEN deployment completes THEN the system SHALL allow worker nodes to join the cluster successfully