feat(lang): Set PATH in envd

[gaocegege]

Description

Ref #1103

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[gaocegege]

Ref https://github.com/moby/buildkit/blob/2a6fcaeda9e8eeb3ea70cd68306f6b74861d96e9/frontend/dockerfile/shell/lex.go#L391-L399

Ref moby/buildkit#1772

[gaocegege]

Ref moby/buildkit#2415

[VoVAllen]

Currently in envd, environment variable is set by passing arguments to docker client.

envd/pkg/builder/util.go

Line 44 in 8776a25

Config: v1.ImageConfig{

This means PATH=$PATH:/usr/bin won't work.

[gaocegege]

Yep. It does not work. We need to implement the substitution in envd by ourselves, like buildkit docker frontend does.

[gaocegege]

It is not in high priority I think.

We have a workaround

def build():
    shell("zsh")
    install_golang_1_18_4()

def install_golang_1_18_4():
    run(
        [
            "wget https://go.dev/dl/go1.18.4.linux-amd64.tar.gz && tar -C /usr/local -xzf go1.18.4.linux-amd64.tar.gz",
        ]
    )
    # Make PATH substitution in another run enable wget cache.
    run([
            'echo "export PATH=$PATH:/usr/local/go/bin" >> /home/envd/.bashrc',
            'echo "export PATH=$PATH:/usr/local/go/bin" >> /home/envd/.zshrc',
    ])