/
inletsoperator_app.go
451 lines (374 loc) · 12.7 KB
/
inletsoperator_app.go
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// Copyright (c) arkade author(s) 2022. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
package apps
import (
"bytes"
"encoding/json"
"fmt"
"io"
"log"
"os"
"path"
"strconv"
"strings"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/alexellis/arkade/pkg"
"github.com/alexellis/arkade/pkg/config"
"github.com/alexellis/arkade/pkg/env"
"github.com/alexellis/arkade/pkg/helm"
"github.com/alexellis/arkade/pkg/k8s"
)
func MakeInstallInletsOperator() *cobra.Command {
var inletsOperator = &cobra.Command{
Use: "inlets-operator",
Short: "Install inlets-operator",
Long: `Install inlets-operator to get public IPs for your services and
IngressController`,
Example: ` arkade install inlets-operator \
--license-file ~/.inlets/license
--token-file ~/api-token`,
SilenceUsage: true,
}
inletsOperator.Flags().StringP("namespace", "n", "default", "The namespace used for installation")
inletsOperator.Flags().StringP("license", "l", "", "The license key for inlets PRO")
inletsOperator.Flags().StringP("license-file", "f", "$HOME/.inlets/LICENSE", "Path to license JWT file for inlets PRO")
inletsOperator.Flags().StringP("provider", "p", "digitalocean", "Your infrastructure provider - 'equinix-metal', 'digitalocean', 'scaleway', 'linode', 'civo', 'gce', 'ec2', 'azure', 'hetzner'")
inletsOperator.Flags().StringP("zone", "z", "us-central1-a", "The zone to provision the exit node (GCE)")
inletsOperator.Flags().String("project-id", "", "Project ID to be used (for GCE and Equinix Metal)")
inletsOperator.Flags().StringP("region", "r", "lon1", "The default region to provision the exit node (DigitalOcean, Equinix Metal and Scaleway)")
inletsOperator.Flags().String("organization-id", "", "The organization id (Scaleway)")
inletsOperator.Flags().String("subscription-id", "", "The subscription id (Azure)")
inletsOperator.Flags().StringP("token-file", "t", "", "Text file containing token or a service account JSON file")
inletsOperator.Flags().StringP("token", "k", "", "The API access token")
inletsOperator.Flags().StringP("secret-key-file", "s", "", "Text file containing secret key, used for providers like ec2")
inletsOperator.Flags().Bool("update-repo", true, "Update the helm repo")
inletsOperator.Flags().String("client-image", "", "Container image for tunnel clients")
inletsOperator.Flags().String("inlets-release", "", "Specific version of inlets to use for tunnel servers")
inletsOperator.Flags().StringArray("set", []string{}, "Use custom flags or override existing flags \n(example --set image=org/repo:tag)")
inletsOperator.PreRunE = func(command *cobra.Command, args []string) error {
tokenString, err := command.Flags().GetString("token")
if err != nil {
return err
}
tokenFileName, err := command.Flags().GetString("token-file")
if err != nil {
return err
}
secretKeyFile, err := command.Flags().GetString("secret-key-file")
if err != nil {
return err
}
return validatePreRun(tokenString, tokenFileName, secretKeyFile)
}
inletsOperator.RunE = func(command *cobra.Command, args []string) error {
kubeConfigPath, _ := command.Flags().GetString("kubeconfig")
if err := config.SetKubeconfig(kubeConfigPath); err != nil {
return err
}
wait, _ := command.Flags().GetBool("wait")
namespace, _ := command.Flags().GetString("namespace")
arch := k8s.GetNodeArchitecture()
fmt.Printf("Node architecture: %q\n", arch)
userPath, err := config.InitUserDir()
if err != nil {
return err
}
clientArch, clientOS := env.GetClientArch()
fmt.Printf("Client: %q, %q\n", clientArch, clientOS)
log.Printf("User dir established as: %s\n", userPath)
os.Setenv("HELM_HOME", path.Join(userPath, ".helm"))
_, err = helm.TryDownloadHelm(userPath, clientArch, clientOS)
if err != nil {
return err
}
updateRepo, _ := inletsOperator.Flags().GetBool("update-repo")
err = helm.AddHelmRepo("inlets", "https://inlets.github.io/inlets-operator/", updateRepo)
if err != nil {
return err
}
err = helm.FetchChart("inlets/inlets-operator", defaultVersion)
if err != nil {
return err
}
overrides, err := getInletsOperatorOverrides(command)
if err != nil {
return err
}
tokenFileName, _ := command.Flags().GetString("token-file")
tokenString, _ := command.Flags().GetString("token")
s := Secret{
Namespace: namespace,
Name: "inlets-access-key",
}
if len(tokenFileName) > 0 {
s.Literals = append(s.Literals, SecretLiteral{
Name: "inlets-access-key",
FromFile: tokenFileName,
})
} else {
s.Literals = append(s.Literals, SecretLiteral{
Name: "inlets-access-key",
FromValue: tokenString,
})
}
err = applySecret(s)
if err != nil {
return err
}
secretKeyFile, _ := command.Flags().GetString("secret-key-file")
if len(secretKeyFile) > 0 {
s := Secret{
Namespace: namespace,
Name: "inlets-secret-key",
}
s.Literals = append(s.Literals, SecretLiteral{
Name: "inlets-secret-key",
FromFile: secretKeyFile,
})
err = applySecret(s)
if err != nil {
return err
}
}
customFlags, _ := command.Flags().GetStringArray("set")
if err := config.MergeFlags(overrides, customFlags); err != nil {
return err
}
region, _ := command.Flags().GetString("region")
overrides["region"] = region
license, _ := command.Flags().GetString("license")
licenseFile, _ := command.Flags().GetString("license-file")
fileFlagChanged := command.Flags().Changed("license-file")
noLicenseErr := fmt.Errorf("--license or --license-file is required for inlets PRO")
if len(license) == 0 {
if len(licenseFile) > 0 {
licenseFile = os.ExpandEnv(licenseFile)
res, err := os.ReadFile(licenseFile)
if err != nil {
if !fileFlagChanged {
return noLicenseErr
}
return fmt.Errorf("unable to open license file: %s", err.Error())
}
license = strings.TrimSpace(string(res))
}
}
if len(license) == 0 {
return noLicenseErr
}
licenseSecret := Secret{
Namespace: namespace,
Name: "inlets-license",
}
licenseSecret.Literals = append(licenseSecret.Literals, SecretLiteral{
Name: "license",
FromValue: license,
})
if err := applySecret(licenseSecret); err != nil {
return err
}
overrides["inletsProLicense"] = license
if val, _ := command.Flags().GetString("client-image"); len(val) > 0 {
overrides["inletsClientImage"] = val
}
if val, _ := command.Flags().GetString("inlets-release"); len(val) > 0 {
overrides["inletsRelease"] = val
}
err = helm.Helm3Upgrade("inlets/inlets-operator",
namespace, "values.yaml", "", overrides, wait)
if err != nil {
return err
}
fmt.Println(inletsOperatorPostInstallMsg)
return nil
}
return inletsOperator
}
func getInletsOperatorOverrides(command *cobra.Command) (map[string]string, error) {
overrides := map[string]string{}
provider, _ := command.Flags().GetString("provider")
overrides["provider"] = strings.ToLower(provider)
secretKeyFile, _ := command.Flags().GetString("secret-key-file")
if len(secretKeyFile) > 0 {
overrides["secretKeyFile"] = "/var/secrets/inlets/secret/inlets-secret-key"
}
providers := []string{
"digitalocean", "equinix-metal", "ec2", "scaleway",
"civo", "gce", "linode", "azure", "hetzner",
}
found := false
for _, p := range providers {
if p == provider {
found = true
}
}
if !found {
return overrides, fmt.Errorf("provider: %s not supported at this time", provider)
}
if provider == "gce" {
gceProjectID, err := command.Flags().GetString("project-id")
if err != nil {
return overrides, err
}
overrides["projectID"] = gceProjectID
zone, err := command.Flags().GetString("zone")
if err != nil {
return overrides, err
}
overrides["zone"] = strings.ToLower(zone)
if len(zone) == 0 {
return overrides, fmt.Errorf("zone is required for provider %s", provider)
}
if len(gceProjectID) == 0 {
return overrides, fmt.Errorf("project-id is required for provider %s", provider)
}
} else if provider == "equinix-metal" {
equinixMetalProjectID, err := command.Flags().GetString("project-id")
if err != nil {
return overrides, err
}
overrides["projectID"] = equinixMetalProjectID
if len(equinixMetalProjectID) == 0 {
return overrides, fmt.Errorf("project-id is required for provider %s", provider)
}
} else if provider == "scaleway" {
orgID, err := command.Flags().GetString("organization-id")
if err != nil {
return overrides, err
}
overrides["organizationID"] = orgID
if len(secretKeyFile) == 0 {
return overrides, fmt.Errorf("secret-key-file is required for provider %s", provider)
}
if len(orgID) == 0 {
return overrides, fmt.Errorf("organization-id is required for provider %s", provider)
}
} else if provider == "azure" {
subscriptionID, err := command.Flags().GetString("subscription-id")
if err != nil {
return overrides, err
}
if len(subscriptionID) == 0 {
return overrides, fmt.Errorf("subscription-id is required for provider %s", provider)
}
overrides["subscriptionID"] = subscriptionID
} else if provider == "ec2" {
if len(secretKeyFile) == 0 {
return overrides, fmt.Errorf("secret-key-file is required for provider %s", provider)
}
} else if provider == "hetzner" {
hetznerRegion, err := command.Flags().GetString("region")
userInputRegion := strings.ToLower(hetznerRegion)
if err != nil {
return overrides, err
}
if len(hetznerRegion) == 0 {
return overrides, fmt.Errorf("region is required for provider %s", provider)
}
validHetznerRegions := []string{"fsn1", "nbg1", "hel1"}
foundRegion := false
for _, validRegion := range validHetznerRegions {
if validRegion == userInputRegion {
foundRegion = true
overrides["region"] = userInputRegion
break
}
}
if !foundRegion {
return overrides, fmt.Errorf("invalid region set for provider %s. Valid regions are: %s", provider, strings.Join(validHetznerRegions, ", "))
}
}
return overrides, nil
}
const InletsOperatorInfoMsg = `# Check the logs
kubectl logs deploy/inlets-operator -f
# Check for tunnels
kubectl get tunnels -A -o wide
# Find out more at:
# https://github.com/inlets/inlets-operator`
const inletsOperatorPostInstallMsg = `=======================================================================
= inlets-operator has been installed. =
=======================================================================` +
"\n\n" + InletsOperatorInfoMsg + "\n\n" + pkg.SupportMessageShort
type Secret struct {
Namespace string
Name string
Stdin io.Reader
Literals []SecretLiteral
}
type SecretLiteral struct {
Name string
FromFile string
FromValue string
}
type K8sVer struct {
ClientVersion struct {
Major string `json:"major"`
Minor string `json:"minor"`
} `json:"clientVersion"`
}
func getKubectlVersion() (int, int, error) {
res, err := k8s.KubectlTask("version", "--client", "-o=json")
if err != nil {
return 0, 0, err
}
if err != nil {
return 0, 0, err
}
v := K8sVer{}
if err := json.Unmarshal([]byte(res.Stdout), &v); err != nil {
return 0, 0, err
}
major, _ := strconv.Atoi(v.ClientVersion.Major)
minor, _ := strconv.Atoi(v.ClientVersion.Minor)
return major, minor, nil
}
func applySecret(s Secret) error {
_, minor, err := getKubectlVersion()
if err != nil {
return err
}
dryRunSuffix := ""
if minor >= 19 {
dryRunSuffix = "=client"
}
parts := []string{"create", "secret", "generic", s.Name, "--dry-run" + dryRunSuffix, "-o=yaml"}
for _, l := range s.Literals {
if len(l.FromFile) > 0 {
parts = append(parts, "--from-file", l.Name+"="+l.FromFile)
} else {
parts = append(parts, "--from-literal", l.Name+"="+l.FromValue)
}
}
res, err := k8s.KubectlTask(parts...)
if err != nil {
return err
} else if len(res.Stderr) > 0 && !strings.Contains(res.Stderr, "Warning") {
return fmt.Errorf("error from kubectl\n%q", res.Stderr)
}
manifest := bytes.NewReader([]byte(res.Stdout))
res, err = k8s.KubectlTaskStdin(manifest, "apply", "-f", "-")
if err != nil {
return err
} else if len(res.Stderr) > 0 && !strings.Contains(res.Stderr, "Warning") {
return fmt.Errorf("error from kubectl\n%q", res.Stderr)
}
return nil
}
func validatePreRun(tokenString, tokenFileName, secretKeyFileName string) error {
if len(tokenFileName) == 0 && len(tokenString) == 0 {
return fmt.Errorf(`--token-file or --token is a required field for your cloud API token or service account JSON`)
}
if len(tokenFileName) > 0 {
if _, err := os.Stat(tokenFileName); err != nil {
return errors.Wrapf(err, "failed to check the token file %s", tokenFileName)
}
}
if len(secretKeyFileName) > 0 {
if _, err := os.Stat(secretKeyFileName); err != nil {
return errors.Wrapf(err, "failed to check the secret file %s", secretKeyFileName)
}
}
return nil
}