bacongobbler/helm-whatup

A Helm plugin to help users determine if there's an update available for their installed charts.

Helm Whatup

This is a Helm plugin to help users determine if there's an update available for their installed charts. It works by reading your locally cached index files from the chart repositories (via helm repo update) and checking the version against the latest deployed version of your charts in the Kubernetes cluster.

Usage

$ helm repo update
$ helm whatup

Install

$ helm plugin install https://github.com/bacongobbler/helm-whatup

The above will fetch the latest binary release of helm whatup and install it.

Developer (From Source) Install

If you would like to handle the build yourself, instead of fetching a binary, this is how recommend doing it.

First, set up your environment:

• You need to have Go installed. Make sure to set $GOPATH
• If you don't have Glide installed, this will install it into $GOPATH/bin for you.

Clone this repo into your $GOPATH using git.

cd $GOPATH/src/github.com/bacongobbler
git clone https://github.com/bacongobbler/helm-whatup

Then run the following to get running.

$ cd helm-whatup
$ make bootstrap build
$ SKIP_BIN_INSTALL=1 helm plugin install $GOPATH/src/github.com/bacongobbler/helm-whatup

That last command will skip fetching the binary install and use the one you built.

helm-whatup's Issues

Helm 3 compatibility

Hi there! What is a fantastic plugin, but it unfortunately doesn't install under helm 3.

Here's the output of helm plugin install https://github.com/bacongobbler/helm-whatup under helm3 :

Downloading https://github.com/bacongobbler/helm-whatup/releases/download/v0.2.1/helm-whatup-0.2.1-darwin-amd64.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   627    0   627    0     0   1551      0 --:--:-- --:--:-- --:--:--  1555
100 7616k  100 7616k    0     0  1893k      0  0:00:04  0:00:04 --:--:-- 2368k
Preparing to install into /plugins/helm-whatup
cp: /plugins/helm-whatup: No such file or directory
cp: /tmp/helm-whatup/bin: unable to copy extended attributes to /plugins/helm-whatup: No such file or directory
cp: /plugins/helm-whatup/helm-whatup: No such file or directory
Failed to install helm-whatup
\tFor support, go to https://github.com/bacongobbler/helm-whatup.
Error: plugin install hook for "whatup" exited with error

Thanks for the fantastic plugin!

install-binary.sh doesn't cleanup after itself

This can result in similar problems to this.

Helm's cleanup code

Support tls flag

When helm is setup with tls the whatup plugin no longer works as it doesn't support the --tls flag.

$ helm whatup
Error: rpc error: code = Unavailable desc = transport is closing

$ helm --tls whatup
Error: unknown flag: --tls

MacOS specific install errors

I was a bit too quick to celebrate after closing #2 It turns out there are still some MacOS specific install errors.

$ helm whatup
Error: fork/exec /Users/diederik/.helm/plugins/helm-whatup/bin/helm-whatup: no such file or directory

diederik@ttys006 ~ $ tree /Users/diederik/.helm/plugins/helm-whatup/
/Users/diederik/.helm/plugins/helm-whatup/
├── Gopkg.lock
├── Gopkg.toml
├── LICENSE
├── Makefile
├── README.md
├── install-binary.sh
├── main.go
└── plugin.yaml

0 directories, 8 files

diederik@ttys006 ~ $ sh -e /Users/diederik/.helm/plugins/helm-whatup/install-binary.sh 
Downloading 
curl: (3) <url> malformed
Failed to install helm-whatup
	For support, go to https://github.com/bacongobbler/helm-whatup.

Running sh -x /Users/diederik/.helm/plugins/helm-whatup/install-binary.sh reveals it's looking for:

curl -s https://api.github.com/repos/bacongobbler/helm-whatup/releases/latest | grep macos

but the release page names the binary "darwin"

When I patch the shell script for that, I run into a second error:

$  /Users/diederik/.helm/plugins/helm-whatup/install-binary.sh 
Downloading https://github.com/bacongobbler/helm-whatup/releases/download/v0.1.0/helm-whatup-0.1.0-darwin-amd64.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   627    0   627    0     0    200      0 --:--:--  0:00:03 --:--:--   200
100 4220k  100 4220k    0     0   623k      0  0:00:06  0:00:06 --:--:-- 1574k
Preparing to install into /Users/diederik/.helm/plugins/helm-whatup
cp: /tmp/helm-whatup/tpl: No such file or directory
Failed to install helm-whatup
\tFor support, go to https://github.com/bacongobbler/helm-whatup.

but fortunately, this seemed to work:

cp -r /tmp/helm-whatup/bin ~/.helm/plugins/helm-whatup/

helm whatup gives multiple entries/results

helm plugin list
NAME  	VERSION	DESCRIPTION
whatup	0.2.1  	Checks if installed charts are out of date against the Helm repositories

helm whatup

There is an update available for release prom (prometheus-operator)!
Installed version: 5.16.0
Available version: 6.3.1
There is an update available for release rc (rocketchat)!
Installed version: 1.1.5
Available version: 1.1.6
There is an update available for release rs (redis)!
Installed version: 8.1.0
Available version: 9.0.1
There is an update available for release rs (redis)!
Installed version: 8.1.0
Available version: 9.0.1
There is an update available for release rs (redis)!
Installed version: 8.1.0
Available version: 8.1.5
There is an update available for release zpg (postgresql)!
Installed version: 5.3.12
Available version: 6.2.0
There is an update available for release zpg (postgresql)!
Installed version: 5.3.12
Available version: 6.2.0
There is an update available for release zpg (postgresql)!
Installed version: 5.3.12
Available version: 6.0.0

Same chart has multiple entries

Added a simple web front-end to display the data

Thanks for creating a very useful tool.

Just in case anyone finds it useful, we're using this to power a very simple dashboard

The app. itself is open source (MIT License) here

Core Helm Feature

Is there a reason why this isn't a core Helm feature?

helm-whatup installer.sh ignores versioning

install-binary.sh ignores the version flag of helm plugin install.

https://github.com/bacongobbler/helm-whatup/blob/master/install-binary.sh#L56

Gives error when no chart version found

helm whatup fails when only snapshot dependencies exist.

Error: No chart version found for example-
Usage:
whatup [flags]

Flags:
-h, --help help for whatup

Error: plugin "whatup" exited with error

helm list : example-1.0.0-8a2bf8f

Install script fails for Mac using versioning

To a naive user (or API!) the latest version is 0.1.0, so helm installs using a deprecated install-binary.sh which causes problems for Macs as seen in #3 (releases are searched for a non-existent helm-whatup-0.1.0-macos-amd64.tar.gz). The master branch doesn't have this problem with install-binary.sh, correctly looking for helm-whatup-0.1.0-darwin-amd64.tar.gz.

Please make a new tag for the latest master.

New release

Would be nice to have a new release including the json formatting.

Installation error

Even though the cache folder is empty:

$ rm -Rf ~/.helm/cache/
$ tree ~/.helm/
/Users/diederik/.helm/
├── ca.pem
├── cert.pem
├── key.pem
├── plugins
├── repository
│   ├── cache
│   │   ├── incubator-index.yaml
│   │   ├── local-index.yaml -> /Users/diederik/.helm/repository/local/index.yaml
│   │   └── stable-index.yaml
│   ├── local
│   │   └── index.yaml
│   └── repositories.yaml
└── starters

I get this error:

$ helm plugin install https://github.com/bacongobbler/helm-whatup
Error: Unable to update checked out version

And some other attemps also failed:

$ ~/.helm/cache/plugins/https-github.com-bacongobbler-helm-whatup/install-binary.sh 
Downloading 
curl: (3) <url> malformed
Failed to install helm-whatup
\tFor support, go to https://github.com/kubernetes/helm.

What's happening here?

Work without local repo

Is it possible to check for updates without the need for local repos?
We are using Flux's Helm Operator, so we don't need local repos.

It would be awesome if this plugin would check remotely for updates.

Installation error

❯ helm plugin install https://github.com/bacongobbler/helm-whatup
Installed plugin: whatup

~
❯ helm whatup
Error: fork/exec /Users/frederic/.helm/plugins/helm-whatup/whatup.sh: no such file or directory

Installation doesn't work by default on blank Alpine image

Hi, love the plugin, but I tried to run it inside a docker container and it wouldn't install correctly. So for anyone trying to install this binary on an alpine image, you have to apk add libc6-compat package (it needs an interpreter that is not present by default). Otherwise you get errors like:
Error: fork/exec /root/.helm/plugins/helm-whatup/bin/helm-whatup: no such file or directory when you pass environment variables along to the script.

Fork and Update

We have Forked this Repo (https://github.com/fabmation-gmbh/helm-whatup) and we will enhance this Plugin.

Running `helm repo update` before `helm whatup`?

The output of helm whatup can be a bit deceiving when the repo's are not updated:

$ helm whatup
Release appin (nginx-ingress) is up to date (0.9.2).
Release caching (redis) is up to date (1.1.11).
Release dashboard (kubernetes-dashboard) is up to date (0.5.1).
Release kubewatch (kubewatch) is up to date (0.2.1).
Release letsencrypt (kube-lego) is up to date (0.4.0).
Done.

$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Skip local chart repository
...Successfully got an update from the "incubator" chart repository
...Successfully got an update from the "stable" chart repository
Update Complete. ⎈ Happy Helming!⎈ 

$ helm whatup
There is an update available for release appin (nginx-ingress)!
Installed version: 0.9.2
Available version: 0.9.3
There is an update available for release caching (redis)!
Installed version: 1.1.11
Available version: 1.1.12
There is an update available for release dashboard (kubernetes-dashboard)!
Installed version: 0.5.1
Available version: 0.5.3
Release kubewatch (kubewatch) is up to date (0.2.1).
Release letsencrypt (kube-lego) is up to date (0.4.0).
Done.

Perhaps mention this in the readme, or always run helm repo update automatically from whatup?