Initial commit

.circleci/config.yml

@@ -0,0 +1,66 @@
+defaults: &defaults
+  working_directory: /go/src/github.com/mstrzele/helm-edit
+  docker:
+    - image: circleci/golang:1.8
+
+version: 2
+jobs:
+  lint:
+    <<: *defaults
+    steps:
+      - run:
+          name: Installing Glide
+          command: curl https://glide.sh/get | sh
+      - checkout
+      - run: go install
+      - run:
+          name: Installing gometalinter
+          command: |
+            go get -u github.com/alecthomas/gometalinter
+            gometalinter --install
+      - run:
+          name: Running gometalinter
+          command: gometalinter --deadline=5m --errors $(glide novendor)
+  build:
+    <<: *defaults
+    steps:
+      - run:
+          name: Installing Gox
+          command: go get github.com/mitchellh/gox
+      - checkout
+      - run: gox -osarch "darwin/amd64 linux/amd64" -output "dist/{{.Dir}}_{{.OS}}_{{.Arch}}"
+
+      - persist_to_workspace:
+          root: dist
+          paths:
+            - helm-edit_darwin_amd64
+            - helm-edit_linux_amd64
+
+  deploy:
+    <<: *defaults
+    steps:
+      - run:
+          name: Installing ghr
+          command: go get -u github.com/tcnksm/ghr
+      - checkout
+
+      - attach_workspace:
+          at: dist
+
+      - deploy:
+          command: ghr -t $GITHUB_TOKEN -u $CIRCLE_PROJECT_USERNAME -r $CIRCLE_PROJECT_REPONAME --replace `git describe --tags` dist/
+
+workflows:
+  version: 2
+  lint-build-and-deploy:
+    jobs:
+      - lint
+      - build:
+          requires:
+            - lint
+      - deploy:
+          requires:
+            - build
+          filters:
+            tags:
+              only: /v[0-9]+(\.[0-9]+)*/

.gitignore

@@ -0,0 +1,21 @@
+
+# Created by https://www.gitignore.io/api/go
+
+### Go ###
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+
+# End of https://www.gitignore.io/api/go
+dist/

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Maciej Strzelecki
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,39 @@
+:warning: **Until [kubernetes/helm#2740](https://github.com/kubernetes/helm/pull/2740) won't be merged, opening an editor using this plugin will mess up your terminal. Use `reset` command after `helm edit`.**
+
+# Helm Edit
+
+[![standard-readme compliant](https://img.shields.io/badge/standard--readme-OK-green.svg?style=flat-square)](https://github.com/RichardLitt/standard-readme)
+[![CircleCI](https://img.shields.io/circleci/project/github/mstrzele/helm-edit.svg?style=flat-square)](https://circleci.com/gh/mstrzele/helm-edit)
+
+> Edit a Helm release
+
+This plugin adds `helm edit` command. It opens the editor defined by `HELM_EDITOR`, `KUBE_EDITOR` or `EDITOR` environment variable and allows to edit the values and upgrade a release.
+
+## Install
+
+```bash
+$ helm plugin install https://github.com/mstrzele/helm-edit
+```
+
+## Usage
+
+```bash
+$ helm edit smiling-penguin
+# Edits the smiling-penguin release
+```
+
+[![asciicast](https://asciinema.org/a/131663.png)](https://asciinema.org/a/131663)
+
+## Maintainers
+
+[@mstrzele](https://github.com/mstrzele)
+
+## Contribute
+
+PRs accepted.
+
+Small note: If editing the README, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
+
+## License
+
+[MIT](LICENSE) © 2017 Maciej Strzelecki

edit.go

@@ -0,0 +1,129 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"os/exec"
+
+	"github.com/spf13/cobra"
+
+	"k8s.io/helm/pkg/chartutil"
+	"k8s.io/helm/pkg/helm"
+	"k8s.io/helm/pkg/proto/hapi/release"
+)
+
+type editCmd struct {
+	release   string
+	out       io.Writer
+	client    helm.Interface
+	allValues bool
+	editor    string
+	timeout   int64
+	wait      bool
+}
+
+func newEditCmd(client helm.Interface, out io.Writer) *cobra.Command {
+
+	edit := &editCmd{
+		out:    out,
+		client: client,
+	}
+
+	cmd := &cobra.Command{
+		Use:     "edit [flags] RELEASE",
+		Short:   fmt.Sprintf("edit a release"),
+		PreRunE: setupConnection,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if len(args) != 1 {
+				return fmt.Errorf("This command neeeds 1 argument: release name")
+			}
+
+			edit.release = args[0]
+			edit.client = ensureHelmClient(edit.client)
+			edit.editor = os.ExpandEnv(edit.editor)
+
+			return edit.run()
+		},
+	}
+
+	f := cmd.Flags()
+	f.BoolVarP(&edit.allValues, "all", "a", false, "edit all (computed) vals")
+	f.Int64Var(&edit.timeout, "timeout", 300, "time in seconds to wait for any individual Kubernetes operation (like Jobs for hooks)")
+	f.BoolVar(&edit.wait, "wait", false, "if set, will wait until all Pods, PVCs, Services, and minimum number of Pods of a Deployment are in a ready state before marking the release as successful. It will wait for as long as --timeout")
+	f.StringVarP(&edit.editor, "editor", "e", "$EDITOR", "name of the editor")
+
+	return cmd
+}
+
+func (e *editCmd) vals(rel *release.Release) (string, error) {
+	if e.allValues {
+		cfg, err := chartutil.CoalesceValues(rel.Chart, rel.Config)
+		if err != nil {
+			return "", err
+		}
+
+		return cfg.YAML()
+	} else {
+		return rel.Config.Raw, nil
+	}
+}
+
+func (e *editCmd) run() error {
+	res, err := e.client.ReleaseContent(e.release)
+	if err != nil {
+		return err
+	}
+
+	tmpfile, err := ioutil.TempFile(os.TempDir(), fmt.Sprintf("helm-edit-%s", res.Release.Name))
+	if err != nil {
+		return err
+	}
+
+	defer os.Remove(tmpfile.Name())
+
+	vals, err := e.vals(res.Release)
+	if err != nil {
+		return err
+	}
+
+	tmpfile.WriteString(vals)
+
+	if err := tmpfile.Close(); err != nil {
+		return err
+	}
+
+	cmd := exec.Command(e.editor, tmpfile.Name())
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = e.out
+	cmd.Stderr = e.out
+	if err := cmd.Run(); err != nil {
+		return err
+	}
+
+	rawVals, err := ioutil.ReadFile(tmpfile.Name())
+	if err != nil {
+		return err
+	}
+
+	if vals != string(rawVals) {
+		_, err := e.client.UpdateReleaseFromChart(
+			res.Release.Name,
+			res.Release.Chart,
+			helm.UpdateValueOverrides(rawVals),
+			helm.UpgradeTimeout(e.timeout),
+			helm.UpgradeWait(e.wait))
+		if err != nil {
+			return err
+		}
+
+		// TODO: print release
+
+		fmt.Fprintf(e.out, "Release %q has been edited. Happy Helming!\n", e.release)
+
+		// TODO: print the status like status command does
+	}
+
+	return nil
+}

glide.yaml

@@ -0,0 +1,9 @@
+package: github.com/mstrzele/helm-edit
+import:
+- package: github.com/spf13/cobra
+- package: k8s.io/helm
+  version: ~2.5.1
+  subpackages:
+  - pkg/chartutil
+  - pkg/helm
+  - pkg/helm/environment

install.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+set -euf -o pipefail
+
+HELM_EDIT_VERSION=${HELM_EDIT_VERSION:-"0.1.0"}
+
+file="${HELM_PLUGIN_DIR:-"$(helm home)/plugins/helm-edit"}/helm-edit"
+os=$(uname -s | tr '[:upper:]' '[:lower:]')
+url="https://github.com/mstrzele/helm-edit/releases/download/v${HELM_EDIT_VERSION}/helm-edit_${os}_amd64"
+
+if command -v wget; then
+  wget -O "${file}"  "${url}"
+elif command -v curl; then
+  curl -o "${file}" "${url}"
+fi
+
+chmod +x "${file}"