Add support for tagging EBS volumes (#199)

.gitignore

@@ -8,6 +8,7 @@
 *.dll
 *.so
 *.dylib
+awstaghelper
 
 # Test binary, built with `go test -c`
 *.test

README.MD

@@ -28,6 +28,8 @@ Tags are critical to managing AWS resources at scale. Awstaghelper provides a co
   * [Iam Role](#iam-role)
   * [Elastic Beanstalk](#elastic-beanstalk)
   * [ECR](#ecr)
+  * [AutoScaling groups](#autoscaling-groups)
+  * [EBS Volumes](#ebs-volumes)
 * [Global parameters](#global-parameters)
 * [Contributing](#contributing)
 * [License](#license)
@@ -322,6 +324,22 @@ Read csv and tag ASGs - `awstaghelper asg tag-asg`
 Example:
 `awstaghelper asg tag-asg --filename asgTags.csv --profile main`
 
+### EBS Volumes
+
+#### Get EBS volume tags
+
+Get list of EBS volumes with required tags - `awstaghelper ebs get-ebs-tags`
+
+Example:
+`awstaghelper ebs get-ebs-tags --filename ebsTags.csv --tags Name,Owner --profile main`
+
+#### Tag EBS volumes
+
+Read csv and tag EBS volumes - `awstaghelper ebs tag-ebs`
+
+Example:
+`awstaghelper ebs tag-ebs --filename ebsTags.csv --profile main`
+
 ## Global parameters
 
 `filename` - path where to write or read data. Supported by every option. Default `awsTags.csv`  

cmd/ebs.go

@@ -0,0 +1,69 @@
+/*
+Copyright © 2023 Cristian Magherusan-Stanciu [email protected]
+Copyright © 2020 Maksym Postument [email protected]
+
+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.
+*/
+
+// Package cmd is the package for the CLI of awstaghelper
+package cmd
+
+import (
+	"github.com/aws/aws-sdk-go/service/ec2"
+	"github.com/mpostument/awstaghelper/pkg"
+
+	"github.com/spf13/cobra"
+)
+
+// ebsCmd represents the ebs command
+var ebsCmd = &cobra.Command{
+	Use:   "ebs",
+	Short: "Root command for interaction with AWS EBS volumes",
+	Long:  `Root command for interaction with AWS EBS volumes,`,
+}
+
+var getEBSVolumeCmd = &cobra.Command{
+	Use:   "get-ebs-tags",
+	Short: "Write EBS volume IDs and required tags to CSV",
+	Long:  `Write to csv data with EBS volume IDs and required tags to CSV. This CSV can be used with tag-ebs command to tag AWS environment. Specify list of tags which should be read using tags flag: --tags Name,Env,Project. Csv filename can be specified with flag filename.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		tags, _ := cmd.Flags().GetString("tags")
+		filename, _ := cmd.Flags().GetString("filename")
+		profile, _ := cmd.Flags().GetString("profile")
+		region, _ := cmd.Flags().GetString("region")
+		sess := pkg.GetSession(region, profile)
+		client := ec2.New(sess)
+		pkg.WriteCsv(pkg.ParseEBSVolumeTags(tags, client), filename)
+	},
+}
+
+var tagEBSVolumeCmd = &cobra.Command{
+	Use:   "tag-ebs",
+	Short: "Read CSV and tag EBS volumes with CSV data",
+	Long:  `Read CSV generated with get-ebs-tags command and tag EBS volumes with tags from CSV.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		filename, _ := cmd.Flags().GetString("filename")
+		profile, _ := cmd.Flags().GetString("profile")
+		region, _ := cmd.Flags().GetString("region")
+		sess := pkg.GetSession(region, profile)
+		csvData := pkg.ReadCsv(filename)
+		client := ec2.New(sess)
+		pkg.TagEBSVolumes(csvData, client)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(ebsCmd)
+	ebsCmd.AddCommand(getEBSVolumeCmd)
+	ebsCmd.AddCommand(tagEBSVolumeCmd)
+}

pkg/ebs.go

@@ -0,0 +1,82 @@
+/*
+Copyright © 2023 Cristian Magherusan-Stanciu [email protected]
+Copyright © 2020 Maksym Postument [email protected]
+
+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.
+*/
+
+package pkg
+
+import (
+	"log"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/ec2"
+	"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
+)
+
+// getEBSVolumes returns all EBS volumes from specified region
+func getEBSVolumes(client ec2iface.EC2API) []*ec2.Volume {
+	input := &ec2.DescribeVolumesInput{}
+
+	var result []*ec2.Volume
+
+	err := client.DescribeVolumesPages(input,
+		func(page *ec2.DescribeVolumesOutput, lastPage bool) bool {
+			result = append(result, page.Volumes...)
+			return !lastPage
+		})
+	if err != nil {
+		log.Fatal("Not able to get EBS volumes ", err)
+	}
+	return result
+}
+
+// ParseEBSVolumeTags parse output from getEBSVolumes and return volume ID and specified tags.
+func ParseEBSVolumeTags(tagsToRead string, client ec2iface.EC2API) [][]string {
+	volumesOutput := getEBSVolumes(client)
+	rows := addHeadersToCsv(tagsToRead, "VolumeId")
+	for _, volume := range volumesOutput {
+		tags := map[string]string{}
+		for _, tag := range volume.Tags {
+			tags[*tag.Key] = *tag.Value
+		}
+		rows = addTagsToCsv(tagsToRead, tags, rows, *volume.VolumeId)
+	}
+	return rows
+}
+
+// TagEBSVolumes tag EBS volumes. Take as input data from csv file. Where first column is volume ID.
+func TagEBSVolumes(csvData [][]string, client ec2iface.EC2API) {
+	for r := 1; r < len(csvData); r++ {
+		var tags []*ec2.Tag
+		for c := 1; c < len(csvData[0]); c++ {
+			tags = append(tags, &ec2.Tag{
+				Key:   &csvData[0][c],
+				Value: &csvData[r][c],
+			})
+		}
+
+		input := &ec2.CreateTagsInput{
+			Resources: []*string{
+				aws.String(csvData[r][0]),
+			},
+			Tags: tags,
+		}
+
+		_, err := client.CreateTags(input)
+		if awsErrorHandle(err) {
+			return
+		}
+	}
+}

pkg/ebs_test.go

@@ -0,0 +1,108 @@
+/*
+Copyright © 2023 Cristian Magherusan-Stanciu [email protected]
+Copyright © 2020 Maksym Postument [email protected]
+
+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.
+*/
+
+package pkg
+
+import (
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/ec2"
+	"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
+	"github.com/stretchr/testify/assert"
+)
+
+type mockedEBS struct {
+	ec2iface.EC2API
+	respDescribeVolumes ec2.DescribeVolumesOutput
+}
+
+// AWS Mocks
+func (m *mockedEBS) DescribeVolumesPages(input *ec2.DescribeVolumesInput,
+	pageFunc func(*ec2.DescribeVolumesOutput, bool) bool) error {
+	pageFunc(&m.respDescribeVolumes, true)
+	return nil
+}
+
+var ParseEBSVolumeTagsResponse = ec2.DescribeVolumesOutput{
+	Volumes: []*ec2.Volume{
+		{
+			VolumeId: aws.String("vol-1"),
+			Tags: []*ec2.Tag{
+				{
+					Key:   aws.String("Name"),
+					Value: aws.String("Volume1"),
+				},
+				{
+					Key:   aws.String("Environment"),
+					Value: aws.String("Test"),
+				},
+			},
+		},
+		{
+			VolumeId: aws.String("vol-2"),
+			Tags: []*ec2.Tag{
+				{
+					Key:   aws.String("Name"),
+					Value: aws.String("Volume2"),
+				},
+				{
+					Key:   aws.String("Environment"),
+					Value: aws.String("Dev"),
+				},
+			},
+		},
+	},
+}
+
+func Test_getEBSVolumes(t *testing.T) {
+	cases := []*mockedEBS{
+		{
+			respDescribeVolumes: ParseEBSVolumeTagsResponse,
+		},
+	}
+
+	expectedResult := ParseEBSVolumeTagsResponse.Volumes
+	for _, c := range cases {
+		t.Run("getEBSVolumes", func(t *testing.T) {
+			result := getEBSVolumes(c)
+			assertions := assert.New(t)
+			assertions.EqualValues(expectedResult, result)
+		})
+
+	}
+}
+
+func TestParseEBSVolumeTags(t *testing.T) {
+	cases := []*mockedEBS{
+		{
+			respDescribeVolumes: ParseEBSVolumeTagsResponse,
+		},
+	}
+	expectedResult := [][]string{
+		{"VolumeId", "Name", "Environment"},
+		{"vol-1", "Volume1", "Test"},
+		{"vol-2", "Volume2", "Dev"},
+	}
+	for _, c := range cases {
+		t.Run("ParseEBSVolumeTags", func(t *testing.T) {
+			result := ParseEBSVolumeTags("Name,Environment", c)
+			assertions := assert.New(t)
+			assertions.EqualValues(expectedResult, result)
+		})
+	}
+}