kops toolbox template does not work in isolated environment.

[guydog28]

/kind bug

We have a completely offline (no internet) environment where I am trying to generate a cluster yaml from a kops go template. It will not work because it wants to download the channels from the internet. Am I missing something? Is there a way to specifiy to ignore channels or use a local copy or other intranet hosted copy?

1. What kops version are you running? The command kops version, will display
this information.

1.20.2

2. What Kubernetes version are you running? kubectl version will print the
version if a cluster is running or provide the Kubernetes version specified as
a kops flag.

N/A

3. What cloud provider are you using?

N/A

4. What commands did you run? What is the simplest way to reproduce this issue?

kops toolbox template --values values.yaml --template templates_folder --output output.yaml --fail-on-missing=false

5. What happened after the commands executed?

failed because it could not contact internet to download the channels file

6. What did you expect to happen?

it to work offline as expected and generate my cluster yaml.

7. Please provide your cluster manifest. Execute
kops get --name my.example.com -o yaml to display your cluster manifest.
You may want to remove your cluster name and other sensitive information.

N/A

8. Please run the commands with most verbose logging by adding the -v 10 flag.
Paste the logs into this report, or in a gist and provide the gist link here.

N/A

9. Anything else do we need to know?

We can't upgrade to 1.21.0 if it happens to be fixed in that version due to #12184

[olemarkus]

You can point to a local channel file using --channel file://...

[guydog28]

I tried that first. It seemed like it ignored it.

[guydog28]

Looks like it is in fact ignored in 1.20. default is loaded without checking options in release-1.20 branch, and fixed in master/v1.22.0-alpha.2 and v1.23.0-alpha.1 with commit 69b0117. So I guess this is fixed but not anywhere I can use it.

1.20:

kops/cmd/kops/toolbox_template.go

Line 168 in 49ceac1

channelLocation = kopsapi.DefaultChannel

master:

kops/cmd/kops/toolbox_template.go

Line 178 in 37ac7d3

channel, err := kopsapi.LoadChannel(options.channel)

[johngmyers]

There is also the channel none

[guydog28]

@johngmyers which would be great if it was reading the value! lol

[olemarkus]

Most likely 1.22 will be the next release so the fastest way to get the bugfix is to wait for that release.

[hakman]

I think #12464 should be a quick fix at least for 1.21.
There will be another 1.21 release but not sure about 1.20.
@guydog28 Any special reason you are using such old version of kOps?

[guydog28]

@hakman im stuck on 1.20 due to #12184

[hakman]

https://github.com/kubernetes/kops/releases/tag/v1.20.3 :)

[guydog28]

Fantastic, thanks @hakman!