118 lines
5.2 KiB
Markdown
118 lines
5.2 KiB
Markdown
# Implementation Plan
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- [ ] 1. Create role directory structure and basic configuration
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- Create the fastpass-additional-control-plane role directory structure
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- Set up defaults/main.yml with required variables and firewall services
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- Create meta/main.yml with role metadata and dependencies
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- _Requirements: 2.1, 2.2, 2.4_
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- [ ] 2. Implement join token and certificate key retrieval
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- [ ] 2.1 Create tasks to generate new join tokens from first control plane
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- Write Ansible tasks to execute kubeadm token create on first control plane node
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- Implement token validation and expiration checking
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- Add error handling for token generation failures
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- _Requirements: 1.4, 5.4_
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- [ ] 2.2 Implement certificate key retrieval and management
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- Create tasks to upload and retrieve certificate keys from first control plane
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- Add certificate key expiration handling and rotation
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- Implement secure handling of certificate keys in variables
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- _Requirements: 1.4, 5.1_
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- [ ] 2.3 Create discovery token CA certificate hash retrieval
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- Write tasks to extract CA certificate hash from first control plane
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- Implement validation of certificate hash format
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- Add error handling for certificate retrieval failures
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- _Requirements: 1.4, 5.4_
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- [ ] 3. Implement DNS configuration and firewall setup
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- [ ] 3.1 Configure DNS records for additional control plane nodes
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- Integrate dns-manager role for consistent DNS record creation
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- Pass appropriate host_name variable to dns-manager
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- Add DNS propagation wait and validation
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- _Requirements: 3.1, 3.2, 3.4_
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- [ ] 3.2 Set up firewall rules for control plane services
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- Reuse kubernetes_services_control_plane from defaults
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- Implement UFW firewall rule creation for Debian/Ubuntu systems
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- Add conditional logic for different operating systems
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- _Requirements: 1.2, 2.4_
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- [ ] 4. Implement kubelet configuration and cluster join
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- [ ] 4.1 Create initial kubelet configuration
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- Write kubelet config.yaml with systemd cgroup driver
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- Set containerd socket endpoint configuration
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- Ensure proper file permissions and ownership
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- _Requirements: 1.3, 2.3_
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- [ ] 4.2 Execute kubeadm join for control plane
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- Implement kubeadm join command with control-plane flag
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- Use retrieved join token, certificate key, and CA cert hash
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- Add proper command argument construction and validation
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- Include idempotency checks to prevent duplicate joins
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- _Requirements: 1.1, 1.4, 5.1, 5.2_
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- [ ] 4.3 Ensure kubelet service management
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- Enable and start kubelet systemd service
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- Add service status validation and error handling
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- Implement service restart logic if needed
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- _Requirements: 1.3, 1.5_
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- [ ] 5. Implement kubeconfig management and validation
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- [ ] 5.1 Configure kubeconfig for additional control plane nodes
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- Integrate kubeconfig-manager role for consistent configuration
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- Pass cluster_name variable to kubeconfig-manager
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- Ensure proper kubeconfig merging with existing configurations
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- _Requirements: 4.1, 4.2, 4.3_
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- [ ] 5.2 Implement cluster join validation
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- Create tasks to verify node successfully joined as control plane
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- Add kubectl commands to check node status and roles
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- Implement cluster health validation checks
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- _Requirements: 1.5, 4.4_
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- [ ] 6. Add comprehensive error handling and idempotency
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- [ ] 6.1 Implement pre-flight validation checks
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- Check if node is already joined to cluster
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- Validate required variables are defined
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- Verify first control plane node accessibility
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- Add system resource and prerequisite checks
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- _Requirements: 5.1, 5.2, 5.4, 5.5_
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- [ ] 6.2 Add retry logic and failure recovery
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- Implement retry mechanisms for transient failures
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- Add exponential backoff for network-related operations
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- Create cleanup tasks for partial join failures
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- _Requirements: 5.3, 5.4_
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- [ ] 7. Integration with FastPass deployment workflow
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- [ ] 7.1 Ensure compatibility with deploy-fastpass-4step.yml
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- Verify role works with fastpass_control_plane[1:] host group
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- Test integration with existing playbook structure
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- Validate dependency on first control plane completion
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- _Requirements: 6.1, 6.2, 6.3, 6.4_
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- [ ] 7.2 Add proper task documentation and metadata
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- Include role header with author, version, and description
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- Add inline comments for complex task logic
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- Document required variables and their purposes
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- _Requirements: 2.2, 2.5_
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- [ ]* 8. Create comprehensive testing and validation
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- [ ]* 8.1 Write unit tests for individual tasks
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- Create test cases for token retrieval logic
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- Test kubeadm join command construction
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- Validate error handling scenarios
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- _Requirements: 1.1, 1.4, 5.1_
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- [ ]* 8.2 Implement integration tests
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- Test multi-node control plane deployment
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- Validate cluster health after additional nodes join
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- Test failover scenarios and cluster resilience
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- _Requirements: 1.5, 6.5_
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- [ ]* 8.3 Add validation scripts and health checks
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- Create scripts to verify cluster state after deployment
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- Implement automated health validation
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- Add performance and resource usage monitoring
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- _Requirements: 1.5, 4.4_ |