@gorizond/mcp-rancher-multi/dist/rancher-client.js

MCP server for multiple Rancher Manager backends with Fleet GitOps support

import { resolveToken } from './utils.js';
// Minimal Rancher client (v3 + k8s proxy)
export class RancherClient {
    baseUrl;
    token;
    insecure;
    caCertPemBase64;
    constructor(cfg) {
        this.baseUrl = cfg.baseUrl.replace(/\/$/, "");
        this.token = resolveToken(cfg.token);
        this.insecure = !!cfg.insecureSkipTlsVerify;
        this.caCertPemBase64 = cfg.caCertPemBase64;
    }
    headers(extra) {
        const h = {
            "Authorization": `Bearer ${this.token}`,
            "Accept": "application/json",
            ...extra,
        };
        return h;
    }
    async requestJSON(url, init) {
        const res = await fetch(url, {
            ...init,
            headers: this.headers(init?.headers),
        });
        if (!res.ok) {
            const text = await res.text().catch(() => "");
            throw new Error(`HTTP ${res.status} ${res.statusText} — ${url}
${text}`);
        }
        return (await res.json());
    }
    async listClusters() {
        const url = `${this.baseUrl}/v3/clusters`;
        const res = await this.requestJSON(url);
        return res.data;
    }
    async listNodes(clusterId) {
        const p = clusterId ? `?clusterId=${encodeURIComponent(clusterId)}` : "";
        const url = `${this.baseUrl}/v3/nodes${p}`;
        const res = await this.requestJSON(url);
        return res.data;
    }
    async listProjects(clusterId) {
        const url = `${this.baseUrl}/v3/projects?clusterId=${encodeURIComponent(clusterId)}`;
        const res = await this.requestJSON(url);
        return res.data;
    }
    async generateKubeconfig(clusterId) {
        const url = `${this.baseUrl}/v3/clusters/${encodeURIComponent(clusterId)}?action=generateKubeconfig`;
        const res = await this.requestJSON(url, { method: "POST", headers: { "content-type": "application/json" } });
        return res.config;
    }
    async k8s(clusterId, k8sPath, init) {
        const pathClean = k8sPath.startsWith("/") ? k8sPath : `/${k8sPath}`;
        const url = `${this.baseUrl}/k8s/clusters/${encodeURIComponent(clusterId)}${pathClean}`;
        const res = await fetch(url, {
            ...init,
            headers: this.headers({ "Accept": "application/json", ...init?.headers }),
        });
        if (!res.ok) {
            const text = await res.text().catch(() => "");
            throw new Error(`K8s proxy HTTP ${res.status} ${res.statusText} — ${url}
${text}`);
        }
        const ct = res.headers.get("content-type") || "";
        if (ct.includes("application/json"))
            return res.json();
        return res.text();
    }
    async listNamespaces(clusterId) {
        const out = await this.k8s(clusterId, "/api/v1/namespaces");
        return out?.items ?? out;
    }
}