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59 lines
1.6 KiB
59 lines
1.6 KiB
// +build !windows
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/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"os"
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"os/user"
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"path/filepath"
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)
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func checkPerms() {
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// This function MUST NOT FAIL, as it is just a check for a common permissions problem.
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// If for some reason the function hits a stopping condition, it may panic. But only if
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// we can be sure that it is panicking because Helm cannot proceed.
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kc := settings.KubeConfig
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if kc == "" {
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kc = os.Getenv("KUBECONFIG")
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}
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if kc == "" {
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u, err := user.Current()
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if err != nil {
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// No idea where to find KubeConfig, so return silently. Many helm commands
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// can proceed happily without a KUBECONFIG, so this is not a fatal error.
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return
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}
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kc = filepath.Join(u.HomeDir, ".kube", "config")
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}
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fi, err := os.Stat(kc)
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if err != nil {
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// DO NOT error if no KubeConfig is found. Not all commands require one.
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return
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}
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perm := fi.Mode().Perm()
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if perm&0040 > 0 {
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warning("Kubernetes configuration file is group-readable. This is insecure. Location: %s", kc)
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}
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if perm&0004 > 0 {
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warning("Kubernetes configuration file is world-readable. This is insecure. Location: %s", kc)
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}
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}
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