1e7f272a67
`MCS` will authenticate against `Mkube`using bearer tokens via HTTP `Authorization` header. The user will provide this token once in the login form, MCS will validate it against Mkube (list tenants) and if valid will generate and return a new MCS sessions with encrypted claims (the user Service account token will be inside the JWT in the data field) Kubernetes The provided `JWT token` corresponds to the `Kubernetes service account` that `Mkube` will use to run tasks on behalf of the user, ie: list, create, edit, delete tenants, storage class, etc. Development If you are running mcs in your local environment and wish to make request to `Mkube` you can set `MCS_M3_HOSTNAME`, if the environment variable is not present by default `MCS` will use `"http://m3:8787"`, additionally you will need to set the `MCS_MKUBE_ADMIN_ONLY=on` variable to make MCS display the Mkube UI Extract the Service account token and use it with MCS For local development you can use the jwt associated to the `m3-sa` service account, you can get the token running the following command in your terminal: ``` kubectl get secret $(kubectl get serviceaccount m3-sa -o jsonpath="{.secrets[0].name}") -o jsonpath="{.data.token}" | base64 --decode ``` Then run the mcs server ``` MCS_M3_HOSTNAME=http://localhost:8787 MCS_MKUBE_ADMIN_ONLY=on ./mcs server ``` Self-signed certificates and Custom certificate authority for Mkube If Mkube uses TLS with a self-signed certificate, or a certificate issued by a custom certificate authority you can add those certificates usinng the `MCS_M3_SERVER_TLS_CA_CERTIFICATE` env variable ```` MCS_M3_SERVER_TLS_CA_CERTIFICATE=cert1.pem,cert2.pem,cert3.pem ./mcs server ````
91 lines
2.8 KiB
Go
91 lines
2.8 KiB
Go
// This file is part of MinIO Console Server
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// Copyright (c) 2020 MinIO, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package restapi
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import (
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"bufio"
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"bytes"
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"errors"
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"fmt"
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"log"
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"net/http"
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"strings"
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apiErrors "github.com/go-openapi/errors"
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"github.com/minio/mcs/pkg/auth"
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"github.com/minio/mcs/pkg/auth/mkube"
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)
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// serverMkube handles calls for mkube
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func serverMkube(client *http.Client, w http.ResponseWriter, req *http.Request) {
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// extract the service account token inside the jwt encrypted claims
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claims, err := auth.GetClaimsFromTokenInRequest(req)
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if err != nil {
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apiErrors.ServeError(w, req, err)
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return
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}
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m3SAToken := claims.SessionToken
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if m3SAToken == "" {
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apiErrors.ServeError(w, req, errors.New("service M3 is not available"))
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return
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}
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// destination of the request, the mkube server
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req.URL.Path = strings.Replace(req.URL.Path, "/mkube", "", 1)
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targetURL := fmt.Sprintf("%s%s", mkube.GetMkubeEndpoint(), req.URL.String())
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body := new(bytes.Buffer)
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_, err = body.ReadFrom(req.Body)
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if err != nil {
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apiErrors.ServeError(w, req, err)
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return
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}
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// set the HTTP method, url, and m3Req body
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m3Req, err := http.NewRequest(req.Method, targetURL, body)
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if err != nil {
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apiErrors.ServeError(w, req, err)
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log.Println("error creating m3 request:", err)
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return
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}
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// Set the m3Req authorization headers
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// Authorization Header needs to be like "Authorization Bearer <jwt_token>"
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token := fmt.Sprintf("Bearer %s", m3SAToken)
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m3Req.Header.Add("Authorization", token)
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m3Req.Header.Add("Content-type", "application/json; charset=utf-8")
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resp, err := client.Do(m3Req)
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if err != nil {
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log.Println("error on m3 request:", err)
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if strings.Contains(err.Error(), "connection refused") {
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apiErrors.ServeError(w, req, errors.New("service M3 is not available"))
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return
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}
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apiErrors.ServeError(w, req, err)
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return
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}
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defer resp.Body.Close()
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w.Header().Add("Content-Type", resp.Header.Get("Content-Type"))
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// Write the m3 response to the response writer
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scanner := bufio.NewScanner(resp.Body)
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for scanner.Scan() {
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w.Write(scanner.Bytes())
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}
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if err := scanner.Err(); err != nil {
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log.Println("error scanning m3 response:", err)
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apiErrors.ServeError(w, req, err)
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}
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}
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