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resolver.go
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resolver.go
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package imgsrc
import (
"context"
"errors"
"fmt"
"github.com/superfly/flyctl/iostreams"
"github.com/superfly/flyctl/api"
"github.com/superfly/flyctl/terminal"
)
type ImageOptions struct {
AppName string
WorkingDir string
DockerfilePath string
ImageRef string
BuildArgs map[string]string
ExtraBuildArgs map[string]string
BuildSecrets map[string]string
ImageLabel string
Publish bool
Tag string
Target string
NoCache bool
BuiltIn string
BuiltInSettings map[string]interface{}
Builder string
Buildpacks []string
}
type RefOptions struct {
AppName string
WorkingDir string
ImageRef string
ImageLabel string
Publish bool
Tag string
}
type DeploymentImage struct {
ID string
Tag string
Size int64
}
type Resolver struct {
dockerFactory *dockerClientFactory
apiClient *api.Client
}
// ResolveReference returns an Image give an reference using either the local docker daemon or remote registry
func (r *Resolver) ResolveReference(ctx context.Context, streams *iostreams.IOStreams, opts RefOptions) (img *DeploymentImage, err error) {
strategies := []imageResolver{
&localImageResolver{},
&remoteImageResolver{flyApi: r.apiClient},
}
for _, s := range strategies {
terminal.Debugf("Trying '%s' strategy\n", s.Name())
img, err = s.Run(ctx, r.dockerFactory, streams, opts)
terminal.Debugf("result image:%+v error:%v\n", img, err)
if err != nil {
return nil, err
}
if img != nil {
return img, nil
}
}
return nil, fmt.Errorf("could not find image \"%s\"", opts.ImageRef)
}
// BuildImage converts source code to an image using a Dockerfile, buildpacks, or builtins.
func (r *Resolver) BuildImage(ctx context.Context, streams *iostreams.IOStreams, opts ImageOptions) (img *DeploymentImage, err error) {
if !r.dockerFactory.mode.IsAvailable() {
return nil, errors.New("docker is unavailable to build the deployment image")
}
if opts.Tag == "" {
opts.Tag = NewDeploymentTag(opts.AppName, opts.ImageLabel)
}
strategies := []imageBuilder{
&buildpacksBuilder{},
&dockerfileBuilder{},
&builtinBuilder{},
}
for _, s := range strategies {
terminal.Debugf("Trying '%s' strategy\n", s.Name())
img, err = s.Run(ctx, r.dockerFactory, streams, opts)
terminal.Debugf("result image:%+v error:%v\n", img, err)
if err != nil {
return nil, err
}
if img != nil {
return img, nil
}
}
return nil, errors.New("app does not have a Dockerfile or buildpacks configured. See https://fly.io/docs/reference/configuration/#the-build-section")
}
func NewResolver(daemonType DockerDaemonType, apiClient *api.Client, appName string, iostreams *iostreams.IOStreams) *Resolver {
return &Resolver{
dockerFactory: newDockerClientFactory(daemonType, apiClient, appName, iostreams),
apiClient: apiClient,
}
}
type imageBuilder interface {
Name() string
Run(ctx context.Context, dockerFactory *dockerClientFactory, streams *iostreams.IOStreams, opts ImageOptions) (*DeploymentImage, error)
}
type imageResolver interface {
Name() string
Run(ctx context.Context, dockerFactory *dockerClientFactory, streams *iostreams.IOStreams, opts RefOptions) (*DeploymentImage, error)
}