Fix supervisor panic when tkns and publicapi Service is nil

[mustard-mh]

Description

Review only commit e081051

Test also

package main

import (
	"fmt"
)

var t TestInterface
var t2 TestInterface

func main() {
	t = NewImplement()
	t.Echo("hello")

	t2 = NewImplement2()
	t2.Echo("hello")
}

type TestInterface interface {
	Echo(something string)
}

type Implement struct {
	hello *string
}

func NewImplement() *Implement {
	return nil
}

func NewImplement2() TestInterface {
	return nil
}

var _ TestInterface = (*Implement)(nil)

// Echo implements TestInterface
func (s *Implement) Echo(something string) {
	if s == nil {
		fmt.Println("s is nil")
		return
	}
	fmt.Println(*s.hello, something)
}

Related Issue(s)

Fixes #

How to test

• Open workspace with repo that will buildimage i.e. https://github.com/gitpod-io/openvscode-server
• Image build should success
• Workpsaces open should works

Release Notes

NONE

Documentation

Werft options:

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh

[werft-gitpod-dev-com]

started the job as gitpod-build-hw-supervisor.3 because the annotations in the pull request description changed
(with .werft/ from main)

[mustard-mh]

Tested

ImageBuild	WorkspaceStart

[akosyakov]

@mustard-mh it is a internal secret of supervisor which is a subject to change, why don't pass it as an argument?

[akosyakov]

LGTM

[easyCZ]

approving to unblock, see comments for style/improvements

[easyCZ]

there's duplication in the config that could be reduced.