jrad88
4 weeks ago
parent
c18fd02c8e
commit
6bcaec8003
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---
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title: Ceph
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description: Ceph Widget Configuration
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---
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Learn more about [Ceph API](https://docs.ceph.com/en/latest/api/).
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The username and password are the same as used to login to the web interface.
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Allowed fields: `["status", "alerts", "freespace", "usedspace", "free", "used", "read", "write", "recovering"]`.
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```yaml
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widget:
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type: ceph
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url: http://ceph.host.or.ip:port
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username: user1
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password: password1
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fields: ["status", "alerts", "used"]
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```
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@ -0,0 +1,68 @@
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import { useTranslation } from "next-i18next";
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import Container from "components/services/widget/container";
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import Block from "components/services/widget/block";
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import useWidgetAPI from "utils/proxy/use-widget-api";
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export default function Component({ service }) {
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const { t } = useTranslation();
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const { widget } = service;
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const { data: infoData, error: infoError } = useWidgetAPI(widget, "ceph/proxy-hosts");
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if (infoError) {
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return <Container service={service} error={infoError} />;
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}
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// Provide a default if not set in the config
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if (!widget.fields) {
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widget.fields = ["status", "alerts", "used"];
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}
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// Limit to a maximum of 4 at a time
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if (widget.fields.length > 4) {
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widget.fields = widget.fields.slice(0, 4);
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}
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/*
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"status": "Status",
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"alerts": "Alerts",
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"freespace": "Free Space",
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"usedspace": "Used Space",
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"free": "Free",
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"used": "Used",
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"read": "Read",
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"write": "Write",
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"recovering": "Recovering"
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*/
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if (!infoData) {
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return (
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<Container service={service}>
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<Block label="ceph.status" />
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<Block label="ceph.alerts" />
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<Block label="ceph.freespace" />
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<Block label="ceph.usedspace" />
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<Block label="ceph.free" />
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<Block label="ceph.used" />
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<Block label="ceph.read" />
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<Block label="ceph.write" />
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<Block label="ceph.recovering" />
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</Container>
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);
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}
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return (
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<Container service={service}>
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<Block label="ceph.status" value={infoData.health.status} />
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<Block label="ceph.alerts" value={infoData.health.checks?.length} />
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<Block label="ceph.freespace" value={t("common.bbytes", { value: infoData.df.stats.total_avail_bytes, maximumFractionDigits: 1 })} />
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<Block label="ceph.usedspace" value={t("common.bbytes", { value: infoData.df.stats.total_used_bytes, maximumFractionDigits: 1 })} />
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<Block label="ceph.free" value={t("common.percent", { value: (infoData.df.stats.total_avail_bytes / infoData.df.stats.total_bytes) * 100, maximumFractionDigits: 1 })} />
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<Block label="ceph.used" value={t("common.percent", { value: (infoData.df.stats.total_used_bytes / infoData.df.stats.total_bytes) * 100, maximumFractionDigits: 1 })} />
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<Block label="ceph.read" value={t("common.byterate", { value: infoData.client_perf.read_bytes_sec, maximumFractionDigits: 1 })} />
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<Block label="ceph.write" value={t("common.byterate", { value: infoData.client_perf.write_bytes_sec, maximumFractionDigits: 1 })} />
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<Block label="ceph.recovering" value={t("common.byterate", { value: infoData.client_perf.recovering_bytes_per_sec, maximumFractionDigits: 1 })} />
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</Container>
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);
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}
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@ -0,0 +1,90 @@
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import cache from "memory-cache";
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import { httpProxy } from "utils/proxy/http";
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import { formatApiCall } from "utils/proxy/api-helpers";
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import getServiceWidget from "utils/config/service-helpers";
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import createLogger from "utils/logger";
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const proxyName = "cephProxyHandler";
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const sessionTokenCacheKey = `${proxyName}__sessionToken`;
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const logger = createLogger(proxyName);
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async function login(widget) {
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const loginUrl = new URL(formatApiCall("{url}/api/auth", widget));
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const [status, , data] = await httpProxy(loginUrl, {
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method: "POST",
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body: JSON.stringify({ username: widget.username, password: widget.password }),
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headers: {
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"accept": "application/vnd.ceph.api.v1.0+json",
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"Content-Type": "application/json",
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},
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});
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// try to avoid parsing errors that are not from ceph
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if (status >= 500)
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{
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logger.error("Failed to connect to %s, status: %d, detail: %s", loginUrl, status, data?.error?.message ?? "-- Unable to read error message from request");
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return [status, false ];
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}
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const dataParsed = JSON.parse(data);
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if (!(status === 201) || !dataParsed.token) {
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logger.error("Failed to login to Ceph, status: %d, detail: %s", status, dataParsed?.detail);
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return [status, false ];
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}
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return [ status, dataParsed.token ];
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}
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export default async function cephProxyHandler(req, res) {
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const { group, service } = req.query;
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if (!group || !service) {
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logger.debug("Invalid or missing service '%s' or group '%s'", service, group);
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return res.status(400).json({ error: "Invalid proxy service type" });
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}
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const widget = await getServiceWidget(group, service);
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if (!widget) {
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logger.debug("Invalid or missing widget for service '%s' in group '%s'", service, group);
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return res.status(400).json({ error: "Invalid proxy service type" });
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}
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if (!widget.url) {
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return res.status(500).json({ error: { message: "Service widget url not configured" } });
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}
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let token = cache.get(`${sessionTokenCacheKey}.${service}`);
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const url = new URL(formatApiCall("{url}/api/health/full", widget));
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const params = {
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method: "GET",
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headers: {
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"accept": "application/vnd.ceph.api.v1.0+json",
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"Authorization": `Bearer ${token}`
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}
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};
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let [status, , data] = await httpProxy(url, params);
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if (status === 401) {
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[status, token] = await login(widget);
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if (status !== 201) {
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logger.error("HTTP %d logging in to ceph", status);
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return res.status(status).end(data);
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}
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cache.put(`${sessionTokenCacheKey}.${service}`, token);
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params.headers.Authorization = `Bearer ${token}`;
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[status, , data] = await httpProxy(url, params);
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}
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if (status !== 200) {
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logger.error("HTTP %d getting data from ceph. Data: %s", status, data);
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}
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return res.status(status).send(data);
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}
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@ -0,0 +1,7 @@
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import cephProxyHandler from "./proxy";
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const widget = {
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proxyHandler: cephProxyHandler,
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};
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export default widget;
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