container_logs
Retrieve Docker container logs to monitor application output and debug issues by specifying container ID and optional line count.
Instructions
Get container logs
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| container | Yes | Container ID or name | |
| tail | No | Number of lines to show from the end |
Implementation Reference
- src/services/docker.service.ts:57-59 (handler)Core handler function that implements the 'container_logs' tool logic by executing the 'docker logs' command with optional --tail parameter.
async getContainerLogs(id: string, tail?: number): Promise<string> { return this.executeCommand(`logs ${tail ? `--tail ${tail}` : ''} ${id}`); } - src/servers/mcp.server.ts:177-194 (registration)Tool registration in the MCP server's listTools handler, defining name, description, and input schema for 'container_logs'.
{ name: 'container_logs', description: 'Get container logs', inputSchema: { type: 'object', properties: { container: { type: 'string', description: 'Container ID or name', }, tail: { type: 'number', description: 'Number of lines to show from the end', }, }, required: ['container'], }, }, - src/servers/mcp.server.ts:276-285 (handler)Dispatch handler in MCP server's callToolRequestSchema that parses arguments and invokes the DockerService handler for 'container_logs'.
case 'container_logs': { const { container, tail } = request.params.arguments as { container: string; tail?: number; }; const output = await this.dockerService.getContainerLogs(container, tail); return { content: [{ type: 'text', text: output }], }; } - src/servers/mcp.server.ts:180-193 (schema)Input schema definition for the 'container_logs' tool, specifying required 'container' and optional 'tail' parameters.
inputSchema: { type: 'object', properties: { container: { type: 'string', description: 'Container ID or name', }, tail: { type: 'number', description: 'Number of lines to show from the end', }, }, required: ['container'], }, - src/services/docker.service.ts:8-18 (helper)Helper method used by getContainerLogs to execute Docker CLI commands asynchronously.
async executeCommand(command: string): Promise<string> { try { const { stdout } = await execAsync(`docker ${command}`); return stdout; } catch (error: any) { throw new McpError( ErrorCode.InternalError, `Docker command failed: ${error.message}` ); } }