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Complete remote driver

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This patch completes the work started in creating a remote driver:

- Renames the env driver to the remote driver (an alternative suggestion
  that should be more user-friendly)
- Adds support for TLS to encrypt connections with buildkitd
- Fixes outstanding review comments
- Reworks the buildx create command endpoint construction to be clearer
  and include better support for this new driver.

Signed-off-by: Justin Chadwell <me@jedevc.com>
This commit is contained in:
Justin Chadwell
2022-04-25 11:28:40 +01:00
parent 3dc83e5dd8
commit d7e4affe98
12 changed files with 246 additions and 126 deletions
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77
commands/create.go
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@ -60,16 +60,26 @@ func runCreate(dockerCli command.Cli, in createOptions, args []string) error {
}
}
buildkitHost := os.Getenv("BUILDKIT_HOST")
driverName := in.driver
if driverName == "" {
f, err := driver.GetDefaultFactory(ctx, dockerCli.Client(), true)
if err != nil {
return err
if len(args) == 0 && buildkitHost != "" {
driverName = "remote"
} else {
var arg string
if len(args) > 0 {
arg = args[0]
}
f, err := driver.GetDefaultFactory(ctx, arg, dockerCli.Client(), true)
if err != nil {
return err
}
if f == nil {
return errors.Errorf("no valid drivers found")
}
driverName = f.Name()
}
if f == nil {
return errors.Errorf("no valid drivers found")
}
driverName = f.Name()
}
if driver.GetFactory(driverName, true) == nil {
@ -129,44 +139,59 @@ func runCreate(dockerCli command.Cli, in createOptions, args []string) error {
}
var ep string
var setEp bool
if in.actionLeave {
if err := ng.Leave(in.nodeName); err != nil {
return err
}
} else {
if len(args) > 0 {
ep, err = validateEndpoint(dockerCli, args[0])
if err != nil {
return err
}
} else {
if dockerCli.CurrentContext() == "default" && dockerCli.DockerEndpoint().TLSData != nil {
return errors.Errorf("could not create a builder instance with TLS data loaded from environment. Please use `docker context create <context-name>` to create a context for current environment and then create a builder instance with `docker buildx create <context-name>`")
}
ep, err = storeutil.GetCurrentEndpoint(dockerCli)
if err != nil {
return err
}
}
if in.driver == "kubernetes" {
switch {
case driverName == "kubernetes":
// naming endpoint to make --append works
ep = (&url.URL{
Scheme: in.driver,
Scheme: driverName,
Path: "/" + in.name,
RawQuery: (&url.Values{
"deployment": {in.nodeName},
"kubeconfig": {os.Getenv("KUBECONFIG")},
}).Encode(),
}).String()
setEp = false
case driverName == "remote":
if len(args) > 0 {
ep = args[0]
} else if buildkitHost != "" {
ep = buildkitHost
} else {
return errors.Errorf("no remote endpoint provided")
}
ep, err = validateBuildkitEndpoint(ep)
if err != nil {
return err
}
setEp = true
case len(args) > 0:
ep, err = validateEndpoint(dockerCli, args[0])
if err != nil {
return err
}
setEp = true
default:
if dockerCli.CurrentContext() == "default" && dockerCli.DockerEndpoint().TLSData != nil {
return errors.Errorf("could not create a builder instance with TLS data loaded from environment. Please use `docker context create <context-name>` to create a context for current environment and then create a builder instance with `docker buildx create <context-name>`")
}
ep, err = storeutil.GetCurrentEndpoint(dockerCli)
if err != nil {
return err
}
setEp = false
}
m, err := csvToMap(in.driverOpts)
if err != nil {
return err
}
if err := ng.Update(in.nodeName, ep, in.platform, len(args) > 0, in.actionAppend, flags, in.configFile, m); err != nil {
if err := ng.Update(in.nodeName, ep, in.platform, setEp, in.actionAppend, flags, in.configFile, m); err != nil {
return err
}
}