talos/internal/integration/base/cli.go
Andrey Smirnov 47608fb874 refactor: make pkg/config not rely on machined/../internal/runtime
This makes `pkg/config` directly importable from other projects.

There should be no functional changes.

Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
2020-07-29 12:40:12 -07:00

124 lines
3.6 KiB
Go

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// +build integration_cli
package base
import (
"fmt"
"io/ioutil"
"math/rand"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
"time"
"github.com/stretchr/testify/suite"
"github.com/talos-systems/talos/internal/pkg/cluster"
"github.com/talos-systems/talos/pkg/cmd"
"github.com/talos-systems/talos/pkg/config/types/v1alpha1/machine"
"github.com/talos-systems/talos/pkg/retry"
)
// CLISuite is a base suite for CLI tests.
type CLISuite struct {
suite.Suite
TalosSuite
}
// DiscoverNodes provides list of Talos nodes in the cluster.
//
// As there's no way to provide this functionality via Talos CLI, it relies on cluster info.
func (cliSuite *CLISuite) DiscoverNodes() cluster.Info {
discoveredNodes := cliSuite.TalosSuite.DiscoverNodes()
if discoveredNodes != nil {
return discoveredNodes
}
discoveredNodes = cliSuite.discoverKubectl()
if discoveredNodes != nil {
return discoveredNodes
}
// still no nodes, skip the test
cliSuite.T().Skip("no nodes were discovered")
return nil
}
// RandomNode returns a random node of the specified type (or any type if no types are specified).
func (cliSuite *CLISuite) RandomDiscoveredNode(types ...machine.Type) string {
nodeInfo := cliSuite.DiscoverNodes()
var nodes []string
if len(types) == 0 {
nodes = nodeInfo.Nodes()
} else {
for _, t := range types {
nodes = append(nodes, nodeInfo.NodesByType(t)...)
}
}
cliSuite.Require().NotEmpty(nodes)
return nodes[rand.Intn(len(nodes))]
}
func (cliSuite *CLISuite) discoverKubectl() cluster.Info {
// pull down kubeconfig into temporary directory
tempDir, err := ioutil.TempDir("", "talos")
cliSuite.Require().NoError(err)
defer os.RemoveAll(tempDir) //nolint: errcheck
// rely on `nodes:` being set in talosconfig
cliSuite.RunCLI([]string{"kubeconfig", tempDir}, StdoutEmpty())
masterNodes, err := cmd.Run(cliSuite.KubectlPath, "--kubeconfig", filepath.Join(tempDir, "kubeconfig"), "get", "nodes",
"-o", "jsonpath={.items[*].status.addresses[?(@.type==\"InternalIP\")].address}", "--selector=node-role.kubernetes.io/master")
cliSuite.Require().NoError(err)
workerNodes, err := cmd.Run(cliSuite.KubectlPath, "--kubeconfig", filepath.Join(tempDir, "kubeconfig"), "get", "nodes",
"-o", "jsonpath={.items[*].status.addresses[?(@.type==\"InternalIP\")].address}", "--selector=!node-role.kubernetes.io/master")
cliSuite.Require().NoError(err)
return &infoWrapper{
masterNodes: strings.Fields(strings.TrimSpace(masterNodes)),
workerNodes: strings.Fields(strings.TrimSpace(workerNodes)),
}
}
func (cliSuite *CLISuite) buildCLICmd(args []string) *exec.Cmd {
// TODO: add support for calling `talosctl config endpoint` before running talosctl
args = append([]string{"--talosconfig", cliSuite.TalosConfig}, args...)
return exec.Command(cliSuite.TalosctlPath, args...)
}
// RunCLI runs talosctl binary with the options provided.
func (cliSuite *CLISuite) RunCLI(args []string, options ...RunOption) {
Run(&cliSuite.Suite, cliSuite.buildCLICmd(args), options...)
}
func (cliSuite *CLISuite) RunAndWaitForMatch(args []string, regex *regexp.Regexp, duration time.Duration, options ...retry.Option) {
cliSuite.Assert().NoError(retry.Constant(duration, options...).Retry(func() error {
stdout, _, err := RunAndWait(&cliSuite.Suite, cliSuite.buildCLICmd(args))
if err != nil {
return retry.UnexpectedError(err)
}
if !regex.MatchString(stdout.String()) {
return retry.ExpectedError(fmt.Errorf("stdout doesn't match: %q", stdout))
}
return nil
}))
}