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dagger/pkg/alpha.dagger.io/os/container.cue
Andrea Luzzardi 282759c0e5 cue modules: move stdlib to pkg/alpha.dagger.io
In preparation for Europa, we will vendor multiple CUE modules:

- `pkg/alpha.dagger.io`: legacy non-europa packages
- `pkg/dagger.io`: core Europa packages
- `pkg/universe.dagger.io`: Europa universe

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
2022-01-11 13:16:37 -08:00

134 lines
2.9 KiB
CUE

package os
import (
"alpha.dagger.io/dagger"
"alpha.dagger.io/dagger/op"
"alpha.dagger.io/alpine"
)
// Default image for basic use cases
// FIXME: should just be 'alpine.#Image'.
// referring to '#.up' is a workaround to a dagger engine bug.
// see https://github.com/dagger/dagger/issues/304
#DefaultImage: alpine.#Image.#up
// Built-in container implementation, using buildkit
#Container: {
// Container image
image: dagger.#Artifact | *#DefaultImage
// {
// // Optionally fetch a remote image
// // eg. "index.docker.io/alpine"
// from: string
// image: #up: [op.#FetchContainer & { "ref": from }]
// } | {}
// Independently cacheable setup commands
setup: [...string]
// Command to execute
command: string | *""
// Environment variables shared by all commands
env: [string]: string
// Directory in which the command is executed
dir: string | *"/"
// If true, the command is never cached.
// (false by default).
always: true | *false
// Copy contents from other artifacts
copy: [string]: from: dagger.#Artifact
// Mount contents from other artifacts.
// Mount is active when executing `command`, but not `setup`.
mount: [string]: {
from: dagger.#Artifact
// FIXME: support source path
}
// Safely mount secrets (in cleartext) as non-persistent files
secret: [string]: dagger.#Secret
// Mount unix socket or windows npipes to the corresponding path
socket: [string]: dagger.#Stream
// Write file in the container
files: [string]: {
content: string
mode: int | *0o644
}
// Mount persistent cache directories
cache: [string]: true
// Mount temporary directories
tmpfs: [string]: true
// Configure the shell which executes all commands.
shell: {
// Path of the shell to execute
path: string | *"/bin/sh"
// Arguments to pass to the shell prior to the command
args: [...string] | *["-c"]
}
#up: [
op.#Load & {from: image},
// Copy volumes with type=copy
for dest, o in copy {
op.#Copy & {
"dest": dest
from: o.from
// FIXME: support source path
}
},
// Execute setup commands, without volumes
for cmd in setup {
op.#Exec & {
args: [shell.path] + shell.args + [cmd]
"env": env
"dir": dir
}
},
for dest, file in files {
op.#WriteFile & {
content: file.content
mode: file.mode
"dest": dest
}
},
// Execute main command with volumes
if command != "" {
op.#Exec & {
args: [shell.path] + shell.args + [command]
"env": env
"dir": dir
"always": always
"mount": {
for dest, o in mount {
"\(dest)": o
// FIXME: support source path
}
for dest, s in secret {
"\(dest)": secret: s
}
for dest, _ in cache {
"\(dest)": "cache"
}
for dest, _ in tmpfs {
"\(dest)": "tmpfs"
}
for dest, s in socket {
"\(dest)": stream: s
}
}
}
},
]
}