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first attempt to export from API Gateway.
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// Copyright 2023 Google LLC. All Rights Reserved. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package apigateway | ||
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import ( | ||
"github.com/apigee/registry-experimental/cmd/registry-connect/discover/apigateway/gateways" | ||
"github.com/spf13/cobra" | ||
) | ||
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func Command() *cobra.Command { | ||
var cmd = &cobra.Command{ | ||
Use: "apigateway", | ||
Short: "Registry commands relating to API Gateway", | ||
} | ||
cmd.AddCommand(gateways.Command()) | ||
return cmd | ||
} |
268 changes: 268 additions & 0 deletions
268
cmd/registry-connect/discover/apigateway/gateways/gateways.go
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// Copyright 2023 Google LLC. All Rights Reserved. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package gateways | ||
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import ( | ||
"bytes" | ||
"encoding/base64" | ||
"encoding/json" | ||
"fmt" | ||
"os" | ||
"os/exec" | ||
"path/filepath" | ||
"strings" | ||
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"github.com/apigee/registry/pkg/encoding" | ||
"github.com/spf13/cobra" | ||
) | ||
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const weNeedToReadAPIs = false | ||
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func Command() *cobra.Command { | ||
var output string | ||
var cmd = &cobra.Command{ | ||
Use: "gateways", | ||
Short: "Export API Gateway Gateways", | ||
Args: cobra.NoArgs, | ||
RunE: func(cmd *cobra.Command, args []string) (err error) { | ||
project, err := getProject() | ||
if err != nil { | ||
return err | ||
} | ||
if weNeedToReadAPIs { | ||
apis, err := fetchApis() | ||
if err != nil { | ||
return err | ||
} | ||
for i, api := range apis { | ||
fmt.Printf("%d %+v\n", i, api) | ||
} | ||
} | ||
gateways, err := fetchGateways() | ||
if err != nil { | ||
return err | ||
} | ||
for _, gateway := range gateways { | ||
fmt.Printf("exporting %s\n", gateway.Name) | ||
config, err := fetchConfig(gateway.ApiConfig) | ||
if err != nil { | ||
return err | ||
} | ||
err = writeRegistryYAML(output, project, &gateway, config) | ||
if err != nil { | ||
return err | ||
} | ||
} | ||
return nil | ||
}, | ||
} | ||
cmd.Flags().StringVar(&output, "output", "gateway-export", "output directory") | ||
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return cmd | ||
} | ||
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func getProject() (string, error) { | ||
buf := &bytes.Buffer{} | ||
command := "gcloud config get project" | ||
cmdargs := strings.Split(command, " ") | ||
c := exec.Command(cmdargs[0], cmdargs[1:]...) | ||
c.Stdout = buf | ||
if err := c.Run(); err != nil { | ||
return "", err | ||
} | ||
return strings.TrimSpace(buf.String()), nil | ||
} | ||
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func fetchApis() ([]GatewayApi, error) { | ||
buf := &bytes.Buffer{} | ||
command := "gcloud api-gateway apis list --format json" | ||
cmdargs := strings.Split(command, " ") | ||
c := exec.Command(cmdargs[0], cmdargs[1:]...) | ||
c.Stdout = buf | ||
if err := c.Run(); err != nil { | ||
return nil, err | ||
} | ||
var apis []GatewayApi | ||
json.Unmarshal(buf.Bytes(), &apis) | ||
return apis, nil | ||
} | ||
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func fetchGateways() ([]Gateway, error) { | ||
buf := &bytes.Buffer{} | ||
command := "gcloud api-gateway gateways list --format json" | ||
cmdargs := strings.Split(command, " ") | ||
c := exec.Command(cmdargs[0], cmdargs[1:]...) | ||
c.Stdout = buf | ||
if err := c.Run(); err != nil { | ||
return nil, err | ||
} | ||
var gateways []Gateway | ||
json.Unmarshal(buf.Bytes(), &gateways) | ||
return gateways, nil | ||
} | ||
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func fetchConfig(name string) (*GatewayConfig, error) { | ||
buf := &bytes.Buffer{} | ||
command := "gcloud api-gateway api-configs describe --view FULL --format json " + name | ||
cmdargs := strings.Split(command, " ") | ||
c := exec.Command(cmdargs[0], cmdargs[1:]...) | ||
c.Stdout = buf | ||
if err := c.Run(); err != nil { | ||
return nil, err | ||
} | ||
var config GatewayConfig | ||
json.Unmarshal(buf.Bytes(), &config) | ||
return &config, nil | ||
} | ||
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type GatewayApi struct { | ||
CreateTime string `json:"createTime"` | ||
DisplayName string `json:"displayName"` | ||
ManagedService string `json:"managedService"` | ||
Name string `json:"name"` | ||
State string `json:"state"` | ||
UpdateTime string `json:"updateTime"` | ||
} | ||
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type Gateway struct { | ||
ApiConfig string `json:"apiConfig"` | ||
CreateTime string `json:"createTime"` | ||
DefaultHostname string `json:"defaultHostname"` | ||
DisplayName string `json:"displayName"` | ||
Name string `json:"name"` | ||
State string `json:"state"` | ||
UpdateTime string `json:"updateTime"` | ||
} | ||
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type GatewayConfig struct { | ||
CreateTime string `json:"createTime"` | ||
DisplayName string `json:"displayName"` | ||
GatewayServiceAccount string `json:"gatewayServiceAccount"` | ||
GrpcServices []map[string][]GatewayFile `json:"grpcServices"` | ||
ManagedServiceConfigs []*GatewayFile `json:"managedServiceConfigs"` | ||
OpenAPIDocuments []map[string]GatewayFile `json:"openapiDocuments"` | ||
Name string `json:"name"` | ||
ServiceConfigId string `json:"serviceConfigId"` | ||
State string `json:"state"` | ||
UpdateTime string `json:"updateTime"` | ||
} | ||
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type GatewayFile struct { | ||
Contents string `json:"contents"` | ||
Path string `json:"path"` | ||
} | ||
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func writeRegistryYAML(output, project string, gateway *Gateway, config *GatewayConfig) error { | ||
apiId := filepath.Base(gateway.Name) | ||
err := os.MkdirAll(filepath.Join(output, project+"-"+apiId), 0777) | ||
if err != nil { | ||
return err | ||
} | ||
description := "Exported from API Gateway" | ||
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specname := "openapi" | ||
filename := "openapi.yaml" | ||
mimetype := "application/x.openapi+gzip;version=2.0" | ||
if config.GrpcServices != nil { | ||
specname = "protos" | ||
filename = "protos.zip" | ||
mimetype = "application/x.proto+zip" | ||
} | ||
a := &encoding.Api{ | ||
Header: encoding.Header{ | ||
ApiVersion: "apigeeregistry/v1", | ||
Kind: "API", | ||
Metadata: encoding.Metadata{ | ||
Name: project + "-" + apiId, | ||
Labels: map[string]string{ | ||
"provider": strings.ReplaceAll(project, ".", "-"), | ||
}, | ||
}, | ||
}, | ||
Data: encoding.ApiData{ | ||
DisplayName: project + " gateway " + apiId, | ||
Description: description, | ||
ApiVersions: []*encoding.ApiVersion{ | ||
{ | ||
Header: encoding.Header{ | ||
Metadata: encoding.Metadata{ | ||
Name: "v1", | ||
}, | ||
}, | ||
Data: encoding.ApiVersionData{ | ||
DisplayName: "v1", | ||
ApiSpecs: []*encoding.ApiSpec{ | ||
{ | ||
Header: encoding.Header{ | ||
Metadata: encoding.Metadata{ | ||
Name: specname, | ||
}, | ||
}, | ||
Data: encoding.ApiSpecData{ | ||
FileName: filename, | ||
MimeType: mimetype, | ||
}, | ||
}, | ||
}, | ||
}, | ||
}, | ||
}, | ||
ApiDeployments: []*encoding.ApiDeployment{ | ||
{ | ||
Header: encoding.Header{ | ||
Metadata: encoding.Metadata{ | ||
Name: "gateway", | ||
}, | ||
}, | ||
Data: encoding.ApiDeploymentData{ | ||
DisplayName: "gateway", | ||
EndpointURI: "https://" + gateway.DefaultHostname, | ||
}, | ||
}, | ||
}, | ||
}, | ||
} | ||
b, err := encoding.EncodeYAML(a) | ||
if err != nil { | ||
panic(err) | ||
} | ||
os.WriteFile(filepath.Join(output, project+"-"+apiId, "info.yaml"), b, 0666) | ||
for _, openapi := range config.OpenAPIDocuments { | ||
f := openapi["document"] | ||
contents, err := base64.StdEncoding.DecodeString(f.Contents) | ||
if err != nil { | ||
return err | ||
} | ||
os.WriteFile(filepath.Join(output, project+"-"+apiId, f.Path), contents, 0666) | ||
} | ||
for _, grpcService := range config.GrpcServices { | ||
files := grpcService["source"] | ||
for _, f := range files { | ||
contents, err := base64.StdEncoding.DecodeString(f.Contents) | ||
if err != nil { | ||
return err | ||
} | ||
os.WriteFile(filepath.Join(output, project+"-"+apiId, f.Path), contents, 0666) | ||
} | ||
} | ||
for _, f := range config.ManagedServiceConfigs { | ||
contents, err := base64.StdEncoding.DecodeString(f.Contents) | ||
if err != nil { | ||
return err | ||
} | ||
os.WriteFile(filepath.Join(output, project+"-"+apiId, f.Path), contents, 0666) | ||
} | ||
return nil | ||
} |
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