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main.go
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main.go
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package main
import (
"context"
"fmt"
"os"
"github.com/google/uuid"
"github.com/werf/werf/pkg/util"
"github.com/werf/werf/pkg/buildah"
"github.com/werf/werf/pkg/docker"
"github.com/werf/werf/pkg/werf"
)
func do(ctx context.Context) error {
if err := werf.Init("", ""); err != nil {
return err
}
if err := docker.Init(ctx, "", false, false, ""); err != nil {
return err
}
b, err := buildah.NewBuildah(buildah.ModeDockerWithFuse, buildah.BuildahOpts{})
if err != nil {
return err
}
if len(os.Args) != 3 {
return fmt.Errorf("usage: %s DOCKERFILE_PATH CONTEXT_DIR", os.Args[0])
}
dockerfilePath := os.Args[1]
if dockerfilePath == "" {
return fmt.Errorf("usage: %s DOCKERFILE_PATH CONTEXT_DIR", os.Args[0])
}
contextDir := os.Args[2]
if contextDir == "" {
return fmt.Errorf("usage: %s DOCKERFILE_PATH CONTEXT_DIR", os.Args[0])
}
dockerfileData, err := os.ReadFile(dockerfilePath)
if err != nil {
return fmt.Errorf("error reading %q: %s", dockerfilePath, err)
}
contextTar := util.ReadDirAsTar(contextDir)
imageID, err := b.BuildFromDockerfile(ctx, dockerfileData, buildah.BuildFromDockerfileOpts{
CommonOpts: buildah.CommonOpts{LogWriter: os.Stdout},
ContextTar: contextTar,
})
if err != nil {
return err
}
fmt.Printf("BUILT NEW IMAGE %q\n", imageID)
containerName := uuid.New().String()
if err := b.FromCommand(ctx, containerName, imageID, buildah.FromCommandOpts{CommonOpts: buildah.CommonOpts{LogWriter: os.Stdout}}); err != nil {
return err
}
if err := b.RunCommand(ctx, containerName, []string{"ls"}, buildah.RunCommandOpts{CommonOpts: buildah.CommonOpts{LogWriter: os.Stdout}}); err != nil {
return err
}
return nil
}
func main() {
if err := do(context.Background()); err != nil {
fmt.Fprintf(os.Stderr, "ERROR: %s\n", err)
os.Exit(1)
}
}