MCP SysOperator

Instructions

Implementation Reference

• src/sysoperator/operations/aws.ts:646-748 (handler)

  The rdsOperations handler function that destructures input args, dynamically generates an Ansible playbook YAML for RDS actions (list, create, delete, start, stop) using amazon.aws.rds_instance module, and executes it via executeAwsPlaybook helper.
  export async function rdsOperations(args: RDSOptions): Promise<string> { await verifyAwsCredentials(); const { action, region, dbInstanceIdentifier, dbEngine, dbInstanceClass, allocatedStorage, masterUsername, masterPassword, vpcSecurityGroupIds, dbSubnetGroupName, tags, multiAZ, backupRetentionPeriod, skipFinalSnapshot } = args; let playbookContent = `--- - name: AWS RDS ${action} operation hosts: localhost connection: local gather_facts: no tasks:`; switch (action) { case 'list': playbookContent += ` - name: List RDS instances amazon.aws.rds_instance_info: region: "${region}" register: rds_info - name: Display RDS instances debug: var: rds_info.instances`; break; case 'create': playbookContent += ` - name: Create RDS instance amazon.aws.rds_instance: region: "${region}" db_instance_identifier: "${dbInstanceIdentifier}" engine: "${dbEngine}" db_instance_class: "${dbInstanceClass}" allocated_storage: ${allocatedStorage} master_username: "${masterUsername}" master_user_password: "${masterPassword}" state: present ${formatYamlParams({ vpc_security_group_ids: vpcSecurityGroupIds, db_subnet_group_name: dbSubnetGroupName, tags, multi_az: multiAZ, backup_retention_period: backupRetentionPeriod, // Add other relevant RDS params here if needed })} register: rds_result - name: Display RDS instance details debug: var: rds_result`; break; case 'delete': playbookContent += ` - name: Delete RDS instance amazon.aws.rds_instance: region: "${region}" db_instance_identifier: "${dbInstanceIdentifier}" state: absent skip_final_snapshot: ${skipFinalSnapshot ? 'yes' : 'no'} register: rds_delete - name: Display deletion result debug: var: rds_delete`; break; case 'start': playbookContent += ` - name: Start RDS instance amazon.aws.rds_instance: region: "${region}" db_instance_identifier: "${dbInstanceIdentifier}" state: started register: rds_start - name: Display start result debug: var: rds_start`; break; case 'stop': playbookContent += ` - name: Stop RDS instance amazon.aws.rds_instance: region: "${region}" db_instance_identifier: "${dbInstanceIdentifier}" state: stopped register: rds_stop - name: Display stop result debug: var: rds_stop`; break; default: throw new AnsibleError(`Unsupported RDS action: ${action}`); } // Execute the generated playbook return executeAwsPlaybook(`rds-${action}`, playbookContent); }
• src/sysoperator/common/types.ts:23-135 (schema)

  Zod schema definition for aws_rds tool inputs: RDSSchema validates action (enum: list/create/delete/start/stop), region (required), and optional RDS-specific params like dbInstanceIdentifier, engine, etc.
  export const RDSActionEnum = z.enum(['list', 'create', 'delete', 'start', 'stop']); export type RDSAction = z.infer<typeof RDSActionEnum>; export const Route53ActionEnum = z.enum(['list_zones', 'list_records', 'create_zone', 'create_record', 'delete_record', 'delete_zone']); export type Route53Action = z.infer<typeof Route53ActionEnum>; export const ELBActionEnum = z.enum(['list', 'create', 'delete']); export type ELBAction = z.infer<typeof ELBActionEnum>; export const LambdaActionEnum = z.enum(['list', 'create', 'update', 'delete', 'invoke']); export type LambdaAction = z.infer<typeof LambdaActionEnum>; // AWS EC2 Schema export const EC2InstanceSchema = z.object({ action: EC2InstanceActionEnum, region: z.string().min(1, 'AWS region is required'), instanceIds: z.array(z.string()).optional(), filters: z.record(z.any()).optional(), instanceType: z.string().optional(), imageId: z.string().optional(), keyName: z.string().optional(), securityGroups: z.array(z.string()).optional(), userData: z.string().optional(), count: z.number().optional(), tags: z.record(z.string()).optional(), waitForCompletion: z.boolean().optional().default(true), terminationProtection: z.boolean().optional() }); export type EC2InstanceOptions = z.infer<typeof EC2InstanceSchema>; // AWS S3 Schema export const S3Schema = z.object({ action: S3ActionEnum, region: z.string().min(1, 'AWS region is required'), bucket: z.string().optional(), objectKey: z.string().optional(), localPath: z.string().optional(), acl: z.string().optional(), tags: z.record(z.string()).optional(), metadata: z.record(z.string()).optional(), contentType: z.string().optional() }); export type S3Options = z.infer<typeof S3Schema>; // AWS VPC Schema export const VPCSchema = z.object({ action: VPCActionEnum, region: z.string().min(1, 'AWS region is required'), vpcId: z.string().optional(), cidrBlock: z.string().optional(), name: z.string().optional(), dnsSupport: z.boolean().optional(), dnsHostnames: z.boolean().optional(), tags: z.record(z.string()).optional(), subnets: z.array(z.object({ cidr: z.string(), az: z.string().optional(), tags: z.record(z.string()).optional() })).optional() }); export type VPCOptions = z.infer<typeof VPCSchema>; // AWS CloudFormation Schema export const CloudFormationSchema = z.object({ action: CloudFormationActionEnum, region: z.string().min(1, 'AWS region is required'), stackName: z.string().optional(), templateBody: z.string().optional(), templateUrl: z.string().optional(), parameters: z.record(z.any()).optional(), capabilities: z.array(z.string()).optional(), tags: z.record(z.string()).optional() }); export type CloudFormationOptions = z.infer<typeof CloudFormationSchema>; // AWS IAM Schema export const IAMSchema = z.object({ action: IAMActionEnum, region: z.string().min(1, 'AWS region is required'), name: z.string().optional(), roleName: z.string().optional(), policyName: z.string().optional(), policyDocument: z.any().optional(), assumeRolePolicyDocument: z.any().optional(), path: z.string().optional(), managedPolicies: z.array(z.string()).optional() }); export type IAMOptions = z.infer<typeof IAMSchema>; // AWS RDS Schema export const RDSSchema = z.object({ action: RDSActionEnum, region: z.string().min(1, 'AWS region is required'), dbInstanceIdentifier: z.string().optional(), dbEngine: z.string().optional(), dbInstanceClass: z.string().optional(), allocatedStorage: z.number().optional(), masterUsername: z.string().optional(), masterPassword: z.string().optional(), vpcSecurityGroupIds: z.array(z.string()).optional(), dbSubnetGroupName: z.string().optional(), tags: z.record(z.string()).optional(), multiAZ: z.boolean().optional(), backupRetentionPeriod: z.number().optional(), skipFinalSnapshot: z.boolean().optional() // Added based on usage in aws.ts }); export type RDSOptions = z.infer<typeof RDSSchema>;
• src/sysoperator/index.ts:116-120 (registration)

  Tool registration in toolDefinitions map: associates 'aws_rds' name with its description, input schema (aws.RDSSchema), and handler function (aws.rdsOperations).
  aws_rds: { description: 'Manage AWS RDS database instances', schema: aws.RDSSchema, handler: aws.rdsOperations, },
• src/sysoperator/operations/aws.ts:77-116 (helper)

  Shared helper function executeAwsPlaybook used by all AWS tools (including rdsOperations) to create temp dir, write playbook YAML to file, execute ansible-playbook, capture output, and cleanup.
  async function executeAwsPlaybook( operationName: string, playbookContent: string, extraParams: string = '', tempFiles: { filename: string, content: string }[] = [] // For additional files like templates, policies ): Promise<string> { let tempDir: string | undefined; try { // Create a unique temporary directory tempDir = await createTempDirectory(`ansible-aws-${operationName}`); // Write the main playbook file const playbookPath = await writeTempFile(tempDir, 'playbook.yml', playbookContent); // Write any additional temporary files for (const file of tempFiles) { await writeTempFile(tempDir, file.filename, file.content); } // Build the command const command = `ansible-playbook ${playbookPath} ${extraParams}`; console.error(`Executing: ${command}`); // Execute the playbook asynchronously const { stdout, stderr } = await execAsync(command); // Return stdout, or a success message if stdout is empty return stdout || `${operationName} completed successfully (no output).`; } catch (error: any) { // Handle execution errors const errorMessage = error.stderr || error.message || 'Unknown error'; throw new AnsibleExecutionError(`Ansible execution failed for ${operationName}: ${errorMessage}`, error.stderr); } finally { // Ensure cleanup happens even if errors occur if (tempDir) { await cleanupTempDirectory(tempDir); } } }