Convert all syndesis bash scripts into single go-lang binary

[phantomjinx]

Advantages

• Detecting compile-time errors;
• Single connection interface to kubernetes platform, using client-go, rather than being concerned with either oc or kubectl;
• Architectural elements like structs for inter-functional communication;
• Proper function return typing rather than resorting to eval, global variables or other workarounds;
• Wait functions built-in and typed return objects from kubernetes-related function calls, eg. kube get secret returns a secret typed object;
• Sync up with other projects such as camel-k.
• ...

Disadvantages

• Compilation requires a binary release;
• Some command-line actions may not be so readily available inside the go-lang environment (helpful to list them as we go along);
• Code maintenance will require a knowledge of go (seems to be a requirement anyway going forward)
• ....

[blaggacao]

@phantomjinx you might be able to apply extream leverage to this item by exploring https://skaffold.dev - unless this is not about repo / dev / ops tooling.

[phantomjinx]

So thinking a little bit more about this. The scripts can be broken down into categories:

• Installation
  • crc
  • minikube
  • minishift
  • install: installing to existing cluster regardless
• Building & Compilation
  • build
• Development Environment
  • completion: changes the completion of local CLI (does anyone use this?)
  • kube: convenience functions wrapping kubectl
  • ui: convenience functions for only bringing up the UI
  • kamel: convenience functions for interacting with camel-k
  • dev: set of miscellaneous development functions, eg. port-forwarding, flushing pvs, updating versions
• Testing & Deployment
  • system-test
  • integration-test
  • release

To me, this looks like 2 distinct groups, ie. user installation & development.

1. User installation:

• Requires download of binaries, configuration of resources, multiple calls to the same commands with different user-requested parameters. Could these scripts be pushed into the syndesis-operator binary, which then becomes the single point of installation?

2. Development:

• Wraps common processes, interacts with different binaries, produces artifacts, uploads changes, triggers testing environments. Could these scripts be superceded by some existing managed environment, such as skaffold.dev?

[phantomjinx]

Related to #6997

[blaggacao]

It looks like skaffold.dev could also provide installation procedures. See how it can act aproriately upon certain context heuristics (local or remote):

• https://skaffold.dev/docs/environment/local-cluster/
• also: https://skaffold.dev/docs/environment/templating/

To absolutely nail dev experience, I can strongly recommend a shell.nix file which could provide appropriate (pinned) versions of minikube / minishift , kamel & kubectl upon running nix-shell.

I could help with that since I'm currently setting up repo tooling at our place this way.