Merge pull request #99 from fluxcd/export-install-manifests

Add export option to tk install
fluxcd · Jul 16, 2020 · 6cb7897 · 6cb7897
2 parents b04abe9 + 499ba15
commit 6cb7897
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Showing 2 changed files with 20 additions and 1 deletion.
diff --git a/cmd/tk/install.go b/cmd/tk/install.go
@@ -24,6 +24,7 @@ import (
 	"path"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/api/filesys"
@@ -43,18 +44,24 @@ If a previous version is installed, then an in-place upgrade will be performed.`
 
   # Dry-run install with manifests preview 
   tk install --dry-run --verbose
+
+  # Write install manifests to file 
+  tk install --export > gitops-system.yaml
 `,
 	RunE: installCmdRun,
 }
 
 var (
+	installExport        bool
 	installDryRun        bool
 	installManifestsPath string
 	installVersion       string
 	installComponents    []string
 )
 
 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", defaultVersion,
@@ -84,7 +91,9 @@ func installCmdRun(cmd *cobra.Command, args []string) error {
 	}
 	defer os.RemoveAll(tmpDir)
 
-	logger.Generatef("generating manifests")
+	if !installExport {
+		logger.Generatef("generating manifests")
+	}
 	if kustomizePath == "" {
 		err = genInstallManifests(installVersion, namespace, installComponents, tmpDir)
 		if err != nil {
@@ -104,6 +113,12 @@ func installCmdRun(cmd *cobra.Command, args []string) error {
 	} else {
 		if verbose {
 			fmt.Print(yaml)
+		} else if installExport {
+			fmt.Println("---")
+			fmt.Println("# GitOps Toolkit revision", installVersion, time.Now().Format(time.RFC3339))
+			fmt.Print(yaml)
+			fmt.Println("---")
+			return nil
 		}
 	}
 	logger.Successf("manifests build completed")

diff --git a/docs/cmd/tk_install.md b/docs/cmd/tk_install.md
@@ -23,13 +23,17 @@ tk install [flags]
   # Dry-run install with manifests preview 
   tk install --dry-run --verbose
 
+  # Write install manifests to file 
+  tk install --export > gitops-system.yaml
+
 ```
 
 ### Options
 
 ```
       --components strings   list of components, accepts comma-separated values (default [source-controller,kustomize-controller,helm-controller,notification-controller])
       --dry-run              only print the object that would be applied
+      --export               write the install manifests to stdout and exit
   -h, --help                 help for install
       --manifests string     path to the manifest directory, dev only
   -v, --version string       toolkit tag or branch (default "master")