32ef58435d
This change replaces the usage of the clientcmd's PathOptions with a simpler filepath approach. The handling of the kube config file associated with airshipctl is now entirely managed by airshipctl. This also introduces the environment variable AIRSHIP_KUBECONFIG, which can be used to override the default location for airship's kube config. It can in turn be overridden by the command line argument. Prior to this change, the kube config object was created by creating a kubernetes client, then stripping off that client's config object. As a side effect, this change removes the middleman, and creates the kube config object directly from file. Change-Id: I99ba88d50a0f45c40597a58fe4b3fdfeb7d1467d
144 lines
4.6 KiB
Go
144 lines
4.6 KiB
Go
/*
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Copyright 2014 The Kubernetes 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 environment
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"github.com/spf13/cobra"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"opendev.org/airship/airshipctl/pkg/config"
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)
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func TestInitFlags(t *testing.T) {
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// Get the Environment
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settings := &AirshipCTLSettings{}
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testCmd := &cobra.Command{}
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settings.InitFlags(testCmd)
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assert.True(t, testCmd.HasPersistentFlags())
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}
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func TestInitConfig(t *testing.T) {
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t.Run("DefaultToHomeDirectory", func(subTest *testing.T) {
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// Set up a fake $HOME directory
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testDir := makeTestDir(t)
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defer deleteTestDir(t, testDir)
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defer setHome(testDir)()
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var testSettings AirshipCTLSettings
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expectedAirshipConfig := filepath.Join(testDir, config.AirshipConfigDir, config.AirshipConfig)
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expectedKubeConfig := filepath.Join(testDir, config.AirshipConfigDir, config.AirshipKubeConfig)
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testSettings.InitConfig()
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assert.Equal(t, expectedAirshipConfig, testSettings.AirshipConfigPath())
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assert.Equal(t, expectedKubeConfig, testSettings.KubeConfigPath())
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})
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t.Run("PreferEnvToDefault", func(subTest *testing.T) {
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// Set up a fake $HOME directory
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testDir := makeTestDir(t)
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defer deleteTestDir(t, testDir)
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defer setHome(testDir)()
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var testSettings AirshipCTLSettings
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expectedAirshipConfig := filepath.Join(testDir, "airshipEnv")
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expectedKubeConfig := filepath.Join(testDir, "kubeEnv")
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os.Setenv(config.AirshipConfigEnv, expectedAirshipConfig)
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os.Setenv(config.AirshipKubeConfigEnv, expectedKubeConfig)
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defer os.Unsetenv(config.AirshipConfigEnv)
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defer os.Unsetenv(config.AirshipKubeConfigEnv)
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testSettings.InitConfig()
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assert.Equal(t, expectedAirshipConfig, testSettings.AirshipConfigPath())
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assert.Equal(t, expectedKubeConfig, testSettings.KubeConfigPath())
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})
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t.Run("PreferCmdLineArgToDefault", func(subTest *testing.T) {
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// Set up a fake $HOME directory
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testDir := makeTestDir(t)
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defer deleteTestDir(t, testDir)
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defer setHome(testDir)()
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var testSettings AirshipCTLSettings
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expectedAirshipConfig := filepath.Join(testDir, "airshipCmdLine")
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expectedKubeConfig := filepath.Join(testDir, "kubeCmdLine")
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testSettings.SetAirshipConfigPath(expectedAirshipConfig)
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testSettings.SetKubeConfigPath(expectedKubeConfig)
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// InitConfig should not change any values
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testSettings.InitConfig()
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assert.Equal(t, expectedAirshipConfig, testSettings.AirshipConfigPath())
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assert.Equal(t, expectedKubeConfig, testSettings.KubeConfigPath())
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})
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t.Run("PreferCmdLineArgToEnv", func(subTest *testing.T) {
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// Set up a fake $HOME directory
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testDir := makeTestDir(t)
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defer deleteTestDir(t, testDir)
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defer setHome(testDir)()
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var testSettings AirshipCTLSettings
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expectedAirshipConfig := filepath.Join(testDir, "airshipCmdLine")
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expectedKubeConfig := filepath.Join(testDir, "kubeCmdLine")
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// set up "decoy" environment variables. These should be
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// ignored, since we're simulating passing in command line
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// arguments
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wrongAirshipConfig := filepath.Join(testDir, "wrongAirshipConfig")
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wrongKubeConfig := filepath.Join(testDir, "wrongKubeConfig")
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os.Setenv(config.AirshipConfigEnv, wrongAirshipConfig)
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os.Setenv(config.AirshipKubeConfigEnv, wrongKubeConfig)
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defer os.Unsetenv(config.AirshipConfigEnv)
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defer os.Unsetenv(config.AirshipKubeConfigEnv)
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testSettings.SetAirshipConfigPath(expectedAirshipConfig)
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testSettings.SetKubeConfigPath(expectedKubeConfig)
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testSettings.InitConfig()
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assert.Equal(t, expectedAirshipConfig, testSettings.AirshipConfigPath())
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assert.Equal(t, expectedKubeConfig, testSettings.KubeConfigPath())
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})
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}
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func makeTestDir(t *testing.T) string {
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testDir, err := ioutil.TempDir("", "airship-test")
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require.NoError(t, err)
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return testDir
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}
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func deleteTestDir(t *testing.T, path string) {
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err := os.Remove(path)
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require.NoError(t, err)
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}
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// setHome sets the HOME environment variable to `path`, and returns a function
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// that can be used to reset HOME to its original value
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func setHome(path string) (resetHome func()) {
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oldHome := os.Getenv("HOME")
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os.Setenv("HOME", path)
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return func() {
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os.Setenv("HOME", oldHome)
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}
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}
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