Housekeeping (#8)

* Rename the provider to dockerbuild.
* Add Makefile targets required by CI.
* Add per-language test targets compatible with CI.
* Fix broken example yaml.
* Add gitignore exclusions to fix SDK generation in CI.
* Fix lint errors.
* Vendor pulumi CLI via `tools.go` instead of `.pulumi`.
* Consolidate `go.mod`s into one file, with a minimal `go.mod` for the
Go SDK.
* Add codecov.

sdk/go/dockerbuild/random.go

@@ -0,0 +1,110 @@
+// Code generated by pulumi-language-go DO NOT EDIT.
+// *** WARNING: Do not edit by hand unless you're certain you know what you are doing! ***
+
+package dockerbuild
+
+import (
+	"context"
+	"reflect"
+
+	"errors"
+	"github.com/pulumi/pulumi-dockerbuild/sdk/go/dockerbuild/internal"
+	"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
+	"github.com/pulumi/pulumi/sdk/v3/go/pulumix"
+)
+
+type Random struct {
+	pulumi.CustomResourceState
+
+	Length pulumix.Output[int]    `pulumi:"length"`
+	Result pulumix.Output[string] `pulumi:"result"`
+}
+
+// NewRandom registers a new resource with the given unique name, arguments, and options.
+func NewRandom(ctx *pulumi.Context,
+	name string, args *RandomArgs, opts ...pulumi.ResourceOption) (*Random, error) {
+	if args == nil {
+		return nil, errors.New("missing one or more required arguments")
+	}
+
+	if args.Length == nil {
+		return nil, errors.New("invalid value for required argument 'Length'")
+	}
+	opts = internal.PkgResourceDefaultOpts(opts)
+	var resource Random
+	err := ctx.RegisterResource("dockerbuild:index:Random", name, args, &resource, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return &resource, nil
+}
+
+// GetRandom gets an existing Random resource's state with the given name, ID, and optional
+// state properties that are used to uniquely qualify the lookup (nil if not required).
+func GetRandom(ctx *pulumi.Context,
+	name string, id pulumi.IDInput, state *RandomState, opts ...pulumi.ResourceOption) (*Random, error) {
+	var resource Random
+	err := ctx.ReadResource("dockerbuild:index:Random", name, id, state, &resource, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return &resource, nil
+}
+
+// Input properties used for looking up and filtering Random resources.
+type randomState struct {
+}
+
+type RandomState struct {
+}
+
+func (RandomState) ElementType() reflect.Type {
+	return reflect.TypeOf((*randomState)(nil)).Elem()
+}
+
+type randomArgs struct {
+	Length int `pulumi:"length"`
+}
+
+// The set of arguments for constructing a Random resource.
+type RandomArgs struct {
+	Length pulumix.Input[int]
+}
+
+func (RandomArgs) ElementType() reflect.Type {
+	return reflect.TypeOf((*randomArgs)(nil)).Elem()
+}
+
+type RandomOutput struct{ *pulumi.OutputState }
+
+func (RandomOutput) ElementType() reflect.Type {
+	return reflect.TypeOf((*Random)(nil)).Elem()
+}
+
+func (o RandomOutput) ToRandomOutput() RandomOutput {
+	return o
+}
+
+func (o RandomOutput) ToRandomOutputWithContext(ctx context.Context) RandomOutput {
+	return o
+}
+
+func (o RandomOutput) ToOutput(ctx context.Context) pulumix.Output[Random] {
+	return pulumix.Output[Random]{
+		OutputState: o.OutputState,
+	}
+}
+
+func (o RandomOutput) Length() pulumix.Output[int] {
+	value := pulumix.Apply[Random](o, func(v Random) pulumix.Output[int] { return v.Length })
+	return pulumix.Flatten[int, pulumix.Output[int]](value)
+}
+
+func (o RandomOutput) Result() pulumix.Output[string] {
+	value := pulumix.Apply[Random](o, func(v Random) pulumix.Output[string] { return v.Result })
+	return pulumix.Flatten[string, pulumix.Output[string]](value)
+}
+
+func init() {
+	pulumi.RegisterOutputType(RandomOutput{})
+}