5a15608c89
This abstracts away the manifest instantiation. The idea is that we define one of these image kind types to represent a group of image types that are sufficiently similar. Each image kind will have a struct with with all the properties that can be customised for the image and a function to turn that into an actual manifest. This is similar to how distro/fedora/manifest.go and cmd/osbuild-playground works today, and aspires to move these closer together and to eventually make the distro definitions simpler. For now cmd/osbuild-playground is moved over to using the new abstraction.
64 lines
1.9 KiB
Go
64 lines
1.9 KiB
Go
package main
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import (
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"math/rand"
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"github.com/osbuild/osbuild-composer/internal/artifact"
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"github.com/osbuild/osbuild-composer/internal/manifest"
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"github.com/osbuild/osbuild-composer/internal/platform"
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"github.com/osbuild/osbuild-composer/internal/rpmmd"
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"github.com/osbuild/osbuild-composer/internal/runner"
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)
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// MyContainer contains the arguments passed in as a JSON blob.
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// You can replace them with whatever you want to use to
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// configure your image. In the current example they are
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// unused.
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type MyContainer struct {
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MyOption string `json:"my_option"`
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}
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// Name returns the name of the image type, used to select what kind
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// of image to build.
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func (img *MyContainer) Name() string {
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return "my-container"
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}
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// init registeres this image type
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func init() {
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AddImageType(&MyContainer{})
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}
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// Build your manifest by attaching pipelines to it
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//
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// @m is the manifest you are constructing
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// @options are what was passed in on the commandline
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// @repos are the default repositories for the host OS/arch
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// @runner is needed by any build pipelines
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//
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// Return nil when you are done, or an error if something
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// went wrong. Your manifest will be streamed to osbuild
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// for building.
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func (img *MyContainer) InstantiateManifest(m *manifest.Manifest,
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repos []rpmmd.RepoConfig,
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runner runner.Runner,
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rng *rand.Rand) (*artifact.Artifact, error) {
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// Let's create a simple OCI container!
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// configure a build pipeline
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build := manifest.NewBuild(m, runner, repos)
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build.Checkpoint()
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// create a minimal non-bootable OS tree
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os := manifest.NewOS(m, build, &platform.X86{}, repos)
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os.ExtraBasePackages = []string{"@core"}
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os.OSCustomizations.Language = "en_US.UTF-8"
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os.OSCustomizations.Hostname = "my-host"
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os.OSCustomizations.Timezone = "UTC"
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// create an OCI container containing the OS tree created above
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container := manifest.NewOCIContainer(m, build, os)
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artifact := container.Export()
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return artifact, nil
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}
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