Add blobserve router under ide-proxy

[iQQBot]

Description

This PR is 1st part of move blobserve behind ide proxy #7986

This PR contain follow things

1. remove blobserve read only mode see comment for detail move blobserve behind ide proxy #7986 (comment), simple not execute, didn't remove logic, in case we need add this back
2. change blobserve owner to team IDE
3. add cache policy, if header is not contain X-BlobServe-InlineVars and HTTP method is not GET, set cache max-age to 31536000, otherwise is no-cache
4. add HEAD method for warm-up cache

Related Issue(s)

Relate #7986

How to test

You can simple test this PR #10514, it contains the effect of the change in this PR

1. open a workspace, see workspace can open, this does not affect what was there before
2. check the following URL, it should be work, and check the response header, Cache-Control should be set public, max-age=31536000

https://ide.pd-move-blob.preview.gitpod-dev.com/blobserve/eu.gcr.io/gitpod-core-dev/build/ide/code:commit-80d9b1ebfd826fd0db25320ba94d762b51887ada/__files__/index.html

https://ide.pd-move-blob.preview.gitpod-dev.com/blobserve/eu.gcr.io/gitpod-core-dev/build/ide/code:commit-80d9b1ebfd826fd0db25320ba94d762b51887ada/index.html

https://ide.pd-move-blob.preview.gitpod-dev.com/blobserve/eu.gcr.io/gitpod-core-dev/build/ide/code:commit-80d9b1ebfd826fd0db25320ba94d762b51887ada

3. check X-BlobServe-InlineVars works, diff response body with remove X-BlobServe-InlineVars header, the difference should like https://www.diffchecker.com/iBzZcjRj ,this is because

   gitpod/install/installer/pkg/components/blobserve/configmap.go

   Lines 74 to 89 in 86b2b9e

   	InlineStatic: []blobserve.InlineReplacement{{
   	Search: "${window.location.origin}",
   	Replacement: ".",
   	}, {
   	Search: "value.startsWith(window.location.origin)",
   	Replacement: "value.startsWith(window.location.origin) || value.startsWith('${ide}')",
   	}, {
   	Search: "./out",
   	Replacement: "${ide}/out",
   	}, {
   	Search: "./node_modules",
   	Replacement: "${ide}/node_modules",
   	}, {
   	Search: "/_supervisor/frontend",
   	Replacement: "${supervisor}",
   	}},

# using the following command test  and check the response header, `Cache-Control` should be set `no-cache` 
curl -v "https://ide.pd-move-blob-2.preview.gitpod-dev.com/blobserve/eu.gcr.io/gitpod-core-dev/build/ide/code:commit-80d9b1ebfd826fd0db25320ba94d762b51887ada/index.html" \
     -H 'X-BlobServe-InlineVars: {"ide": "_____IDE__URL____STRING___", "supervisor": "____SUPERVISOR____URL"}'

4. try curl -v --head "https://ide.pd-move-blob-2.preview.gitpod-dev.com/blobserve/eu.gcr.io/gitpod-core-dev/build/ide/code:commit-80d9b1ebfd826fd0db25320ba94d762b51887ada/index.html", it should not response body, only HTTP status

Release Notes

NONE

Documentation

[mustard-mh]

check the following URL, it should be work, and check the response header, Cache-Control should be set public, max-age=31536000

Why we should (can only) test those three URLs below?

[mustard-mh]

2. check the following URL, it should be work, and check the response header, Cache-Control should be set public, max-age=31536000

We should filter Network with blobserve

Replace ones URL from blobserve.ws.xxx/eu.gcr.io/xxx to ide.xxx/blobserve/eu.gcr.io/xxx

To check if new blobserve alias (const in the future) works

Image

[iQQBot]

Why we should (can only) test those three URLs below?

These are just an example, in fact I'm just giving the format here, just make sure the various formats above are compatible

PS: You can simple test this PR #10514, This contains the effect of the change

[iQQBot]

2. check the following URL, it should be work, and check the response header, Cache-Control should be set public, max-age=31536000

We should filter Network with blobserve

Replace ones URL from blobserve.ws.xxx/eu.gcr.io/xxx to ide.xxx/blobserve/eu.gcr.io/xxx

To check if new blobserve alias (const in the future) works

Image

Thank you for your clarification 🙏

[mustard-mh]

Code LGTM

ide. alias works

before	with alias

Diff while checking X-BlobServe-InlineVars as expected

Img

https://ide.pd-move-blob-2.preview.gitpod-dev.com/blobserve/eu.gcr.io/gitpod-core-dev/build/ide/code:commit-80d9b1ebfd826fd0db25320ba94d762b51887ada/index.html only respond header