migrate to go modules from vndr

Signed-off-by: Tariq Ibrahim <tariq181290@gmail.com>
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# Azure SDK for Go
[![godoc](https://godoc.org/github.com/Azure/azure-sdk-for-go?status.svg)](https://godoc.org/github.com/Azure/azure-sdk-for-go)
[![Build Status](https://travis-ci.org/Azure/azure-sdk-for-go.svg?branch=master)](https://travis-ci.org/Azure/azure-sdk-for-go)
[![Go Report Card](https://goreportcard.com/badge/github.com/Azure/azure-sdk-for-go)](https://goreportcard.com/report/github.com/Azure/azure-sdk-for-go)
azure-sdk-for-go provides Go packages for managing and using Azure services. It has been
tested with Go 1.8, 1.9 and 1.10.
To be notified about updates and changes, subscribe to the [Azure update
feed](https://azure.microsoft.com/updates/).
Users of the SDK may prefer to jump right in to our samples repo at
[github.com/Azure-Samples/azure-sdk-for-go-samples][samples_repo].
### Build Details
Most packages in the SDK are generated from [Azure API specs][azure_rest_specs]
using [Azure/autorest.go][] and [Azure/autorest][]. These generated packages
depend on the HTTP client implemented at [Azure/go-autorest][].
[azure_rest_specs]: https://github.com/Azure/azure-rest-api-specs
[Azure/autorest]: https://github.com/Azure/autorest
[Azure/autorest.go]: https://github.com/Azure/autorest.go
[Azure/go-autorest]: https://github.com/Azure/go-autorest
The SDK codebase adheres to [semantic versioning](https://semver.org) and thus
avoids breaking changes other than at major (x.0.0) releases. However,
occasionally Azure API fixes require breaking updates within an individual
package; these exceptions are noted in release changelogs.
To more reliably manage dependencies like the Azure SDK in your applications we
recommend [golang/dep](https://github.com/golang/dep).
# Install and Use:
### Install
```sh
$ go get -u github.com/Azure/azure-sdk-for-go/...
```
or if you use dep, within your repo run:
```sh
$ dep ensure -add github.com/Azure/azure-sdk-for-go
```
If you need to install Go, follow [the official instructions](https://golang.org/dl/).
### Use
For complete examples of many scenarios see [Azure-Samples/azure-sdk-for-go-samples][samples_repo].
1. Import a package from the [services][services_dir] directory.
2. Create and authenticate a client with a `New*Client` func, e.g.
`c := compute.NewVirtualMachinesClient(...)`.
3. Invoke API methods using the client, e.g. `c.CreateOrUpdate(...)`.
4. Handle responses.
[services_dir]: https://github.com/Azure/azure-sdk-for-go/tree/master/services
For example, to create a new virtual network (substitute your own values for
strings in angle brackets):
Note: For more on authentication and the `Authorizer` interface see [the next
section](#authentication).
```go
package main
import (
"context"
"github.com/Azure/azure-sdk-for-go/services/network/mgmt/2017-09-01/network"
"github.com/Azure/go-autorest/autorest/azure/auth"
"github.com/Azure/go-autorest/autorest/to"
)
func main() {
vnetClient := network.NewVirtualNetworksClient("<subscriptionID>")
authorizer, err := auth.NewAuthorizerFromEnvironment()
if err == nil {
vnetClient.Authorizer = authorizer
}
vnetClient.CreateOrUpdate(context.Background(),
"<resourceGroupName>",
"<vnetName>",
network.VirtualNetwork{
Location: to.StringPtr("<azureRegion>"),
VirtualNetworkPropertiesFormat: &network.VirtualNetworkPropertiesFormat{
AddressSpace: &network.AddressSpace{
AddressPrefixes: &[]string{"10.0.0.0/8"},
},
Subnets: &[]network.Subnet{
{
Name: to.StringPtr("<subnet1Name>"),
SubnetPropertiesFormat: &network.SubnetPropertiesFormat{
AddressPrefix: to.StringPtr("10.0.0.0/16"),
},
},
{
Name: to.StringPtr("<subnet2Name>"),
SubnetPropertiesFormat: &network.SubnetPropertiesFormat{
AddressPrefix: to.StringPtr("10.1.0.0/16"),
},
},
},
},
})
}
```
### Authentication
Most SDK operations require an OAuth token for authentication and authorization. These are
made available in the Go SDK For Azure through types implementing the `Authorizer` interface.
You can get one from Azure Active Directory using the SDK's
[authentication](https://godoc.org/github.com/Azure/go-autorest/autorest/azure/auth) package. The `Authorizer` returned should
be set as the authorizer for the resource client, as shown in the [previous section](#use).
You can get an authorizer in the following ways:
1. From the **Environment**:
- Use `auth.auth.NewAuthorizerFromEnvironment()`. This call will try to get an authorizer based on the environment
variables with different types of credentials in the following order:
1. **Client Credentials**: Uses the AAD App Secret for auth.
- `AZURE_TENANT_ID`: Specifies the Tenant to which to authenticate.
- `AZURE_CLIENT_ID`: Specifies the app client ID to use.
- `AZURE_CLIENT_SECRET`: Specifies the app secret to use.
2. **Client Certificate**: Uses a certificate that was configured on the AAD Service Principal.
- `AZURE_TENANT_ID`: Specifies the Tenant to which to authenticate.
- `AZURE_CLIENT_ID`: Specifies the app client ID to use.
- `AZURE_CERTIFICATE_PATH`: Specifies the certificate Path to use.
- `AZURE_CERTIFICATE_PASSWORD`: Specifies the certificate password to use.
3. **Username Pasword**: Uses a username and a password for auth. This is not recommended. Use `Device Flow` Auth instead for user interactive acccess.
- `AZURE_TENANT_ID`: Specifies the Tenant to which to authenticate.
- `AZURE_CLIENT_ID`: Specifies the app client ID to use.
- `AZURE_USERNAME`: Specifies the username to use.
- `AZURE_PASSWORD`: Specifies the password to use.
4. **MSI**: Only available for apps running in Azure. No configuration needed as it leverages the fact that the app is running in Azure. See [Azure Managed Service Identity](https://docs.microsoft.com/en-us/azure/active-directory/msi-overview).
- Optionally, the following environment variables can be defined:
- `AZURE_ENVIRONMENT`: Specifies the Azure Environment to use. If not set, it defaults to `AzurePublicCloud`. (Not applicable to MSI based auth)
- `AZURE_AD_RESOURCE`: Specifies the AAD resource ID to use. If not set, it defaults to `ResourceManagerEndpoint`which allows management operations against Azure Resource Manager.
2. From an **Auth File**:
- Create a service principal and output the file content using `az ad sp create-for-rbac --sdk-auth` from the Azure CLI.For more details see [az ad sp](https://docs.microsoft.com/en-us/cli/azure/ad/sp).
- Set environment variable `AZURE_AUTH_LOCATION` for finding the file.
- Use `auth.NewAuthorizerFromFile()` for getting the `Authorizer` based on the auth file.
3. From **Device Flow** by configuring `auth.DeviceFlowConfig` and calling the `Authorizer()` method.
Note: To authenticate you first need to create a service principal in Azure. To create a new service principal, run
`az ad sp create-for-rbac -n "<app_name>"` in the
[azure-cli](https://github.com/Azure/azure-cli). See
[these docs](https://docs.microsoft.com/cli/azure/create-an-azure-service-principal-azure-cli?view=azure-cli-latest)
for more info. Copy the new principal's ID, secret, and tenant ID for use in your app.
Alternatively, if your apps are running in Azure, you can now leverage the [Managed Service Identity](https://docs.microsoft.com/en-us/azure/active-directory/msi-overview).
# Versioning
azure-sdk-for-go provides at least a basic Go binding for every Azure API. To
provide maximum flexibility to users, the SDK even includes previous versions of
Azure APIs which are still in use. This enables us to support users of the
most updated Azure datacenters, regional datacenters with earlier APIs, and
even on-premises installations of Azure Stack.
**SDK versions** apply globally and are tracked by git
[tags](https://github.com/Azure/azure-sdk-for-go/tags). These are in x.y.z form
and generally adhere to [semantic versioning](https://semver.org) specifications.
**Service API versions** are generally represented by a date string and are
tracked by offering separate packages for each version. For example, to choose the
latest API versions for Compute and Network, use the following imports:
```go
import (
"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2017-12-01/compute"
"github.com/Azure/azure-sdk-for-go/services/network/mgmt/2017-09-01/network"
)
```
Occasionally service-side changes require major changes to existing versions.
These cases are noted in the changelog.
All avilable services and versions are listed under the `services/` path in
this repo and in [GoDoc][services_godoc]. Run `find ./services -type d
-mindepth 3` to list all available service packages.
[services_godoc]: https://godoc.org/github.com/Azure/azure-sdk-for-go/services
### Profiles
Azure **API profiles** specify subsets of Azure APIs and versions. Profiles can provide:
* **stability** for your application by locking to specific API versions; and/or
* **compatibility** for your application with Azure Stack and regional Azure datacenters.
In the Go SDK, profiles are available under the `profiles/` path and their
component API versions are aliases to the true service package under
`services/`. You can use them as follows:
```go
import "github.com/Azure/azure-sdk-for-go/profiles/2017-03-09/compute/mgmt/compute"
import "github.com/Azure/azure-sdk-for-go/profiles/2017-03-09/network/mgmt/network"
import "github.com/Azure/azure-sdk-for-go/profiles/2017-03-09/storage/mgmt/storage"
```
The 2017-03-09 profile is the only one currently available and is for use in
hybrid Azure and Azure Stack environments. More profiles are under development.
In addition to versioned profiles, we also provide two special profiles
`latest` and `preview`. These *always* include the most recent respective stable or
preview API versions for each service, even when updating them to do so causes
breaking changes. That is, these do *not* adhere to semantic versioning rules.
The `latest` and `preview` profiles can help you stay up to date with API
updates as you build applications. Since they are by definition not stable,
however, they **should not** be used in production apps. Instead, choose the
latest specific API version (or an older one if necessary) from the `services/`
path.
As an example, to automatically use the most recent Compute APIs, use one of
the following imports:
```go
import "github.com/Azure/azure-sdk-for-go/profiles/latest/compute/mgmt/compute"
import "github.com/Azure/azure-sdk-for-go/profiles/preview/compute/mgmt/compute"
```
## Inspecting and Debugging
All clients implement some handy hooks to help inspect the underlying requests being made to Azure.
- `RequestInspector`: View and manipulate the go `http.Request` before it's sent
- `ResponseInspector`: View the `http.Response` received
Here is an example of how these can be used with `net/http/httputil` to see requests and responses.
```go
vnetClient := network.NewVirtualNetworksClient("<subscriptionID>")
vnetClient.RequestInspector = LogRequest()
vnetClient.ResponseInspector = LogResponse()
...
func LogRequest() autorest.PrepareDecorator {
return func(p autorest.Preparer) autorest.Preparer {
return autorest.PreparerFunc(func(r *http.Request) (*http.Request, error) {
r, err := p.Prepare(r)
if err != nil {
log.Println(err)
}
dump, _ := httputil.DumpRequestOut(r, true)
log.Println(string(dump))
return r, err
})
}
}
func LogResponse() autorest.RespondDecorator {
return func(p autorest.Responder) autorest.Responder {
return autorest.ResponderFunc(func(r *http.Response) error {
err := p.Respond(r)
if err != nil {
log.Println(err)
}
dump, _ := httputil.DumpResponse(r, true)
log.Println(string(dump))
return err
})
}
}
```
# Resources
- SDK docs are at [godoc.org](https://godoc.org/github.com/Azure/azure-sdk-for-go/).
- SDK samples are at [Azure-Samples/azure-sdk-for-go-samples](https://github.com/Azure-Samples/azure-sdk-for-go-samples).
- SDK notifications are published via the [Azure update feed](https://azure.microsoft.com/updates/).
- Azure API docs are at [docs.microsoft.com/rest/api](https://docs.microsoft.com/rest/api/).
- General Azure docs are at [docs.microsoft.com/azure](https://docs.microsoft.com/azure).
### Other Azure packages for Go
- [Azure Storage Blobs](https://azure.microsoft.com/services/storage/blobs) - [github.com/Azure/azure-storage-blob-go](https://github.com/Azure/azure-storage-blob-go)
- [Azure Applications Insights](https://azure.microsoft.com/en-us/services/application-insights/) - [github.com/Microsoft/ApplicationInsights-Go](https://github.com/Microsoft/ApplicationInsights-Go)
## License
Apache 2.0, see [LICENSE](./LICENSE).
## Contribute
See [CONTRIBUTING.md](./CONTRIBUTING.md).
[samples_repo]: https://github.com/Azure-Samples/azure-sdk-for-go-samples

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# go-autorest
[![GoDoc](https://godoc.org/github.com/Azure/go-autorest/autorest?status.png)](https://godoc.org/github.com/Azure/go-autorest/autorest)
[![Build Status](https://travis-ci.org/Azure/go-autorest.svg?branch=master)](https://travis-ci.org/Azure/go-autorest)
[![Go Report Card](https://goreportcard.com/badge/Azure/go-autorest)](https://goreportcard.com/report/Azure/go-autorest)
Package go-autorest provides an HTTP request client for use with [Autorest](https://github.com/Azure/autorest.go)-generated API client packages.
An authentication client tested with Azure Active Directory (AAD) is also
provided in this repo in the package
`github.com/Azure/go-autorest/autorest/adal`. Despite its name, this package
is maintained only as part of the Azure Go SDK and is not related to other
"ADAL" libraries in [github.com/AzureAD](https://github.com/AzureAD).
## Overview
Package go-autorest implements an HTTP request pipeline suitable for use across
multiple goroutines and provides the shared routines used by packages generated
by [Autorest](https://github.com/Azure/autorest.go).
The package breaks sending and responding to HTTP requests into three phases: Preparing, Sending,
and Responding. A typical pattern is:
```go
req, err := Prepare(&http.Request{},
token.WithAuthorization())
resp, err := Send(req,
WithLogging(logger),
DoErrorIfStatusCode(http.StatusInternalServerError),
DoCloseIfError(),
DoRetryForAttempts(5, time.Second))
err = Respond(resp,
ByDiscardingBody(),
ByClosing())
```
Each phase relies on decorators to modify and / or manage processing. Decorators may first modify
and then pass the data along, pass the data first and then modify the result, or wrap themselves
around passing the data (such as a logger might do). Decorators run in the order provided. For
example, the following:
```go
req, err := Prepare(&http.Request{},
WithBaseURL("https://microsoft.com/"),
WithPath("a"),
WithPath("b"),
WithPath("c"))
```
will set the URL to:
```
https://microsoft.com/a/b/c
```
Preparers and Responders may be shared and re-used (assuming the underlying decorators support
sharing and re-use). Performant use is obtained by creating one or more Preparers and Responders
shared among multiple go-routines, and a single Sender shared among multiple sending go-routines,
all bound together by means of input / output channels.
Decorators hold their passed state within a closure (such as the path components in the example
above). Be careful to share Preparers and Responders only in a context where such held state
applies. For example, it may not make sense to share a Preparer that applies a query string from a
fixed set of values. Similarly, sharing a Responder that reads the response body into a passed
struct (e.g., `ByUnmarshallingJson`) is likely incorrect.
Errors raised by autorest objects and methods will conform to the `autorest.Error` interface.
See the included examples for more detail. For details on the suggested use of this package by
generated clients, see the Client described below.
## Helpers
### Handling Swagger Dates
The Swagger specification (https://swagger.io) that drives AutoRest
(https://github.com/Azure/autorest/) precisely defines two date forms: date and date-time. The
github.com/Azure/go-autorest/autorest/date package provides time.Time derivations to ensure correct
parsing and formatting.
### Handling Empty Values
In JSON, missing values have different semantics than empty values. This is especially true for
services using the HTTP PATCH verb. The JSON submitted with a PATCH request generally contains
only those values to modify. Missing values are to be left unchanged. Developers, then, require a
means to both specify an empty value and to leave the value out of the submitted JSON.
The Go JSON package (`encoding/json`) supports the `omitempty` tag. When specified, it omits
empty values from the rendered JSON. Since Go defines default values for all base types (such as ""
for string and 0 for int) and provides no means to mark a value as actually empty, the JSON package
treats default values as meaning empty, omitting them from the rendered JSON. This means that, using
the Go base types encoded through the default JSON package, it is not possible to create JSON to
clear a value at the server.
The workaround within the Go community is to use pointers to base types in lieu of base types within
structures that map to JSON. For example, instead of a value of type `string`, the workaround uses
`*string`. While this enables distinguishing empty values from those to be unchanged, creating
pointers to a base type (notably constant, in-line values) requires additional variables. This, for
example,
```go
s := struct {
S *string
}{ S: &"foo" }
```
fails, while, this
```go
v := "foo"
s := struct {
S *string
}{ S: &v }
```
succeeds.
To ease using pointers, the subpackage `to` contains helpers that convert to and from pointers for
Go base types which have Swagger analogs. It also provides a helper that converts between
`map[string]string` and `map[string]*string`, enabling the JSON to specify that the value
associated with a key should be cleared. With the helpers, the previous example becomes
```go
s := struct {
S *string
}{ S: to.StringPtr("foo") }
```
## Install
```bash
go get github.com/Azure/go-autorest/autorest
go get github.com/Azure/go-autorest/autorest/azure
go get github.com/Azure/go-autorest/autorest/date
go get github.com/Azure/go-autorest/autorest/to
```
## License
See LICENSE file.
-----
This project has adopted the [Microsoft Open Source Code of
Conduct](https://opensource.microsoft.com/codeofconduct/). For more information
see the [Code of Conduct
FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact
[opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional
questions or comments.