Rename gotk binary to flux

Signed-off-by: Hidde Beydals <hello@hidde.co>

cmd/flux/install.go

@@ -0,0 +1,181 @@
+/*
+Copyright 2020 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/spf13/cobra"
+
+	"github.com/fluxcd/toolkit/internal/flags"
+	"github.com/fluxcd/toolkit/internal/utils"
+	"github.com/fluxcd/toolkit/pkg/manifestgen/install"
+)
+
+var installCmd = &cobra.Command{
+	Use:   "install",
+	Short: "Install the toolkit components",
+	Long: `The install command deploys the toolkit components in the specified namespace.
+If a previous version is installed, then an in-place upgrade will be performed.`,
+	Example: `  # Install the latest version in the flux-system namespace
+  flux install --version=latest --namespace=flux-system
+
+  # Dry-run install for a specific version and a series of components
+  flux install --dry-run --version=v0.0.7 --components="source-controller,kustomize-controller"
+
+  # Dry-run install with manifests preview
+  flux install --dry-run --verbose
+
+  # Write install manifests to file
+  flux install --export > flux-system.yaml
+`,
+	RunE: installCmdRun,
+}
+
+var (
+	installExport             bool
+	installDryRun             bool
+	installManifestsPath      string
+	installVersion            string
+	installComponents         []string
+	installRegistry           string
+	installImagePullSecret    string
+	installWatchAllNamespaces bool
+	installNetworkPolicy      bool
+	installArch               = flags.Arch(defaults.Arch)
+	installLogLevel           = flags.LogLevel(defaults.LogLevel)
+)
+
+func init() {
+	installCmd.Flags().BoolVar(&installExport, "export", false,
+		"write the install manifests to stdout and exit")
+	installCmd.Flags().BoolVarP(&installDryRun, "dry-run", "", false,
+		"only print the object that would be applied")
+	installCmd.Flags().StringVarP(&installVersion, "version", "v", defaults.Version,
+		"toolkit version")
+	installCmd.Flags().StringSliceVar(&installComponents, "components", defaults.Components,
+		"list of components, accepts comma-separated values")
+	installCmd.Flags().StringVar(&installManifestsPath, "manifests", "", "path to the manifest directory")
+	installCmd.Flags().MarkHidden("manifests")
+	installCmd.Flags().StringVar(&installRegistry, "registry", defaults.Registry,
+		"container registry where the toolkit images are published")
+	installCmd.Flags().StringVar(&installImagePullSecret, "image-pull-secret", "",
+		"Kubernetes secret name used for pulling the toolkit images from a private registry")
+	installCmd.Flags().Var(&installArch, "arch", installArch.Description())
+	installCmd.Flags().BoolVar(&installWatchAllNamespaces, "watch-all-namespaces", defaults.WatchAllNamespaces,
+		"watch for custom resources in all namespaces, if set to false it will only watch the namespace where the toolkit is installed")
+	installCmd.Flags().Var(&installLogLevel, "log-level", installLogLevel.Description())
+	installCmd.Flags().BoolVar(&installNetworkPolicy, "network-policy", defaults.NetworkPolicy,
+		"deny ingress access to the toolkit controllers from other namespaces using network policies")
+	rootCmd.AddCommand(installCmd)
+}
+
+func installCmdRun(cmd *cobra.Command, args []string) error {
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	tmpDir, err := ioutil.TempDir("", namespace)
+	if err != nil {
+		return err
+	}
+	defer os.RemoveAll(tmpDir)
+
+	if !installExport {
+		logger.Generatef("generating manifests")
+	}
+
+	opts := install.Options{
+		BaseURL:                installManifestsPath,
+		Version:                installVersion,
+		Namespace:              namespace,
+		Components:             installComponents,
+		Registry:               installRegistry,
+		ImagePullSecret:        installImagePullSecret,
+		Arch:                   installArch.String(),
+		WatchAllNamespaces:     installWatchAllNamespaces,
+		NetworkPolicy:          installNetworkPolicy,
+		LogLevel:               installLogLevel.String(),
+		NotificationController: defaults.NotificationController,
+		ManifestFile:           fmt.Sprintf("%s.yaml", namespace),
+		Timeout:                timeout,
+	}
+
+	if installManifestsPath == "" {
+		opts.BaseURL = install.MakeDefaultOptions().BaseURL
+	}
+
+	manifest, err := install.Generate(opts)
+	if err != nil {
+		return fmt.Errorf("install failed: %w", err)
+	}
+
+	if _, err := manifest.WriteFile(tmpDir); err != nil {
+		return fmt.Errorf("install failed: %w", err)
+	}
+
+	if verbose {
+		fmt.Print(manifest.Content)
+	} else if installExport {
+		fmt.Println("---")
+		fmt.Println("# GitOps Toolkit revision", installVersion)
+		fmt.Println("# Components:", strings.Join(installComponents, ","))
+		fmt.Print(manifest.Content)
+		fmt.Println("---")
+		return nil
+	}
+
+	logger.Successf("manifests build completed")
+	logger.Actionf("installing components in %s namespace", namespace)
+	applyOutput := utils.ModeStderrOS
+	if verbose {
+		applyOutput = utils.ModeOS
+	}
+
+	kubectlArgs := []string{"apply", "-f", filepath.Join(tmpDir, manifest.Path)}
+	if installDryRun {
+		args = append(args, "--dry-run=client")
+		applyOutput = utils.ModeOS
+	}
+	if _, err := utils.ExecKubectlCommand(ctx, applyOutput, kubectlArgs...); err != nil {
+		return fmt.Errorf("install failed")
+	}
+
+	if installDryRun {
+		logger.Successf("install dry-run finished")
+		return nil
+	} else {
+		logger.Successf("install completed")
+	}
+
+	logger.Waitingf("verifying installation")
+	for _, deployment := range installComponents {
+		kubectlArgs = []string{"-n", namespace, "rollout", "status", "deployment", deployment, "--timeout", timeout.String()}
+		if _, err := utils.ExecKubectlCommand(ctx, applyOutput, kubectlArgs...); err != nil {
+			return fmt.Errorf("install failed")
+		} else {
+			logger.Successf("%s ready", deployment)
+		}
+	}
+
+	logger.Successf("install finished")
+	return nil
+}