Stack vs sample proposal and outer loop proposal #492

elsony · 2021-06-11T18:33:24Z

What does this PR do?

Move design doc from gdoc (https://docs.google.com/document/d/1tbzZK9aWtpw5AtoZmUl1Jy8x8w9N5hhjXu3c26VYiYY/edit?usp=sharing and https://docs.google.com/document/d/1SL3ZJyAy8lp973EzQpY36VjTJHoyGXl2zUXokPiXwK8/edit?usp=sharing) to design doc in repo for public access.

What issues does this PR fix or reference?

Design doc for #279 and #51

Is your PR tested? Consider putting some instruction how to test your changes

Design doc changes only

Docs PR

Design doc changes only

Note: I accidentally closed the original PR #474 so this new one replaces it with all the review comments addressed.

Signed-off-by: eyuen <eyuen@redhat.com>

amisevsk

I'm concerned we're providing too many options at once and overloading our definitions. It looks like the image component type has a lot of fields that have specific use cases, which may be hard to use/document.

From what I can tell, the full spec for image components is the below

image:
  imageName: {{myimage}}
  # Exclusive of s2i type
  dockerfile:
    # Common fields
    args: [ "arg1", "arg2", "arg3" ]
    envFrom:
    - secretRef:
        name: my-secret

    # Option 1
    buildContext: ${PROJECTS_ROOT}/build
    location: Dockerfile
    rootRequired: false

    # Option 2
    id: mycompany/my-node-stack-dockerfile/v2.2.2

    # Option 3
    git:
      remotes:
        origin: "https://github.com/odo-devfiles/nodejs-ex.git"
      location: Dockerfile
    
  # Exclusive of dockerfile type
  s2i:
    builderImageNamespace: mynamespace
    builderImageStreamTag: mytag
    scriptLocation:
      remotes:
        origin: "https://github.com/odo-devfiles/nodejs-ex.git"

We would need a very complicated set of validations here, e.g. it's either dockerfile or s2i, then if it's dockerfile, it's either {buildContext, location, rootRequired}, {id}, or {git, location}

amisevsk · 2021-06-16T18:49:46Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+    - Input\
+    The build may use different technologies for building, e.g. dockerfile, buildpacks
+    - Output:\
+    A container image that contains the microservice and ready to be deployed to Kubernetes


I think this is more readable on single lines

- **Input**: The build may use different technologies for building, e.g. dockerfile, buildpacks - **Output**: A container image that contains the microservice and ready to be deployed to Kubernetes

Also, - Input is missing a colon.

I find using it more readable using separate lines so I keep the separate lines. I've added the missing colon.

amisevsk · 2021-06-16T18:50:35Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+
+We will cover two main stages:
+1. Build the image
+2. Deployment of the image. Deploy the image to a cluster


Suggested change

2. Deployment of the image. Deploy the image to a cluster

2. Deploy the image to a cluster

amisevsk · 2021-06-16T18:53:37Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+### Example using `apply` command on an image component:
+    commands:
+      - id: deploybuild
+        apply:
+          component: mydockerfileimage


I'm not sure I understand the purpose of the apply command here.

See the note section. It is used for controlling the image startup.

amisevsk · 2021-06-16T18:54:49Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+          dockerfile:
+            id: mycompany/my-node-stack-dockerfile/v2.2.2
+            args: [ ]


I don't understand what this refers to. What is this an id into?

It's for referring to a resource within the registry.

amisevsk · 2021-06-16T18:57:04Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+            git:
+              remotes:
+                origin: "https://github.com/odo-devfiles/nodejs-ex.git"
+            location: Dockerfile
+            args: [ ]


We're really overloading .image.dockerfile with multiple disjoint sets of fields. This might be hard to use/understand.

This PR is supposed to convert the existing design proposal spec so that everyone has access. If there are suggestions on spec changes, please open a separate item to discuss.

amisevsk · 2021-06-16T18:58:07Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+The git definition will be the same as the one in `starterProjects` definition that supports `checkoutFrom`
+
+`location`: the location of the dockerfile within the repo. If `checkoutFrom` is being used, the location will be relative to the root of the resources after cloning the resources using the `checkoutFrom` setting.


If we're using a lot of logic from projects, why don't we just use projects for this? If you have the section above as a project in your devfile, you should just be able to use the first case (dockerfile + buildContext, etc.)

We are only reusing the location definition, e.g. git and zip, of a project. Project has special meaning for defining and it is incorrect to retry to replace the dockerfile component with the project component.

amisevsk · 2021-06-16T19:00:34Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+1. Operators
+1. Helm
+
+The initial design will focus on the first two items for discussion. Other ways of building the image will be covered later.


These items may need to be reordered -- it looks like the proposal below covers deployment manifest and helm.

Reordered the example to match.

amisevsk · 2021-06-16T19:01:57Z

docs/proposals/registry/sample-vs-stack.md

+
+## Overview
+
+The existing devfile registry focuses on the stack support to provide generic language/framework/runtime, e.g. Node, Java maven, Quarkus, etc.,  support to build and run user applications. These devfiles are called ***stack devfiles***.  There is another kind of devfile in a devfile registry that is tailored for a building and running a specific application. These devfiles are referred to as ___*sample devfiles*___ (example: https://github.com/redhat-developer/devfile-sample).


For consistency, we should use either ***text*** or ___*text*___ for bold-italics.

amisevsk · 2021-06-16T19:05:17Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+    variables:
+      myimage: myimagename
+    components:
+      - name: mydockerfileimage
+        image:
+          imageName: {{myimage}}
+          dockerfile:
+            buildContext: ${PROJECTS_ROOT}/build
+            location: Dockerfile
+            args: [ "arg1", "arg2", "arg3" ]
+            rootRequired: false


Use regular code blocks to get syntax highlighting.

Suggested change

variables:

myimage: myimagename

components:

- name: mydockerfileimage

image:

imageName: {{myimage}}

dockerfile:

buildContext: ${PROJECTS_ROOT}/build

location: Dockerfile

args: [ "arg1", "arg2", "arg3" ]

rootRequired: false

```yaml

variables:

myimage: myimagename

components:

- name: mydockerfileimage

image:

imageName: {{myimage}}

dockerfile:

buildContext: ${PROJECTS_ROOT}/build

location: Dockerfile

args: [ "arg1", "arg2", "arg3" ]

rootRequired: false

amisevsk · 2021-06-16T19:06:36Z

docs/proposals/devfile/outer-loop-build-and-deploy.md

+    variables:
+      myimage: myimagename
+    components:
+      - name: mydockerfileimage
+        image:
+          imageName: {{myimage}}
+          dockerfile:
+            buildContext: ${PROJECTS_ROOT}/build
+            location: https://github.com/redhat-developer/devfile-sample/blob/master/src/Dockerfile
+            args: [ "arg1", "arg2", "arg3" ]
+            rootRequired: false
+            envFrom:
+            - secretRef:
+                name: my-secret


Enclose in ```yaml (....) ```

Applies to other code blocks in this document as well.

Signed-off-by: eyuen <eyuen@redhat.com>

elsony · 2021-06-17T19:33:50Z

I'm concerned we're providing too many options at once and overloading our definitions. It looks like the image component type has a lot of fields that have specific use cases, which may be hard to use/document.

@amisevsk This PR is supposed to just put the existing design proposal spec in the repo so that everyone has access. The specification has been gone through a couple of rounds of discussions in the cabal call. Therefore, I am only addressing formatting issues in this PR. If there are suggestions on spec changes, please open a separate item to discuss and bring it up to the cabal call for spec change discussion.

openshift-ci · 2021-06-17T21:25:04Z

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: amisevsk, elsony, GeekArthur

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elsony added 3 commits June 3, 2021 17:03

Stack vs sample proposal

0aaec0c

Signed-off-by: eyuen <eyuen@redhat.com>

Add outer-loop build and deploy proposal

a2218d8

Signed-off-by: eyuen <eyuen@redhat.com>

Fix code indentation, remove backup section

4a7f016

Signed-off-by: eyuen <eyuen@redhat.com>

elsony requested review from amisevsk, davidfestal and sleshchenko as code owners June 11, 2021 18:33

elsony requested a review from GeekArthur June 11, 2021 18:35

GeekArthur approved these changes Jun 14, 2021

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openshift-ci bot assigned GeekArthur Jun 14, 2021

openshift-ci bot added the lgtm label Jun 14, 2021

amisevsk reviewed Jun 16, 2021

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Merge remote-tracking branch 'origin/main' into main

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openshift-ci bot removed the lgtm label Jun 17, 2021

Improved doc formating

8aafa2c

Signed-off-by: eyuen <eyuen@redhat.com>

amisevsk approved these changes Jun 17, 2021

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openshift-ci bot assigned amisevsk Jun 17, 2021

openshift-ci bot added the lgtm label Jun 17, 2021

elsony merged commit eb2947e into devfile:main Jun 17, 2021

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Stack vs sample proposal and outer loop proposal #492

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	2. Deployment of the image. Deploy the image to a cluster
	2. Deploy the image to a cluster

		The git definition will be the same as the one in `starterProjects` definition that supports `checkoutFrom`

		`location`: the location of the dockerfile within the repo. If `checkoutFrom` is being used, the location will be relative to the root of the resources after cloning the resources using the `checkoutFrom` setting.


		## Overview

		The existing devfile registry focuses on the stack support to provide generic language/framework/runtime, e.g. Node, Java maven, Quarkus, etc., support to build and run user applications. These devfiles are called *stack devfiles. There is another kind of devfile in a devfile registry that is tailored for a building and running a specific application. These devfiles are referred to as ___sample devfiles*___ (example: https://github.com/redhat-developer/devfile-sample).

Stack vs sample proposal and outer loop proposal #492

Stack vs sample proposal and outer loop proposal #492

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elsony commented Jun 11, 2021 • edited Loading

What does this PR do?

What issues does this PR fix or reference?

Is your PR tested? Consider putting some instruction how to test your changes

Docs PR

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