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golang-saas-starter-kit/example-project/tools/truss/cmd/devops/service_deploy.go
Lee Brown 5c477b4dc9 checkpoint
2019-07-08 12:21:22 -08:00

1016 lines
32 KiB
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package devops
import (
"encoding/json"
"fmt"
"geeks-accelerator/oss/saas-starter-kit/example-project/internal/platform/tests"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/ecr"
"github.com/aws/aws-sdk-go/service/ecs"
"github.com/aws/aws-sdk-go/service/iam"
"github.com/aws/aws-sdk-go/service/secretsmanager"
"github.com/iancoleman/strcase"
"github.com/pkg/errors"
"log"
"os"
"os/exec"
"path/filepath"
"regexp"
"strconv"
"strings"
)
type ServiceDeployFlags struct {
ServiceName string
ServiceDir string
Env string
GoModFile string
GoModName string
ProjectRoot string
ProjectName string
DockerFile string
EcsExecutionRoleArn string
EcsTaskRoleArn string
VPC bool
ELB bool
SD bool
ReleaseImage string
BuildTags []string
NoBuild bool
NoDeploy bool
NoCache bool
NoPush bool
Debug bool
}
func (f *ServiceDeployFlags) ProjectNameCamel() string {
s := strings.Replace(f.ProjectName, "_", " ", -1)
s = strings.Replace(s, "-", " ", -1)
s = strcase.ToCamel(s)
return s
}
/*
secretsmanager:GetSecretValue
ecr:GetAuthorizationToken
ecr:ListImages
ecr:DescribeRepositories
ecr:CreateRepository
ecs:CreateCluster
ecs:DescribeClusters
esc:RegisterTaskDefinition
cloudwatchlogs:DescribeLogGroups
cloudwatchlogs:CreateLogGroup
iam:CreateServiceLinkedRole
iam:PutRolePolicy
*/
// requiredCmdsBuild proves a list of required executables for completing build.
var requiredCmdsDeploy = [][]string{
[]string{"docker", "version", "-f", "{{.Client.Version}}"},
}
// Run is the main entrypoint for deploying a service for a given target env.
func ServiceDeploy(log *log.Logger, flags *ServiceDeployFlags) error {
log.SetPrefix(log.Prefix() + " deploy : ")
//
log.Println("Verify required commands are installed.")
for _, cmdVals := range requiredCmdsDeploy {
cmd := exec.Command(cmdVals[0], cmdVals[1:]...)
cmd.Env = os.Environ()
out, err := cmd.CombinedOutput()
if err != nil {
return errors.WithMessagef(err, "failed to execute %s - %s\n%s", strings.Join(cmdVals, " "), string(out))
}
log.Printf("\t%s\t%s - %s", tests.Success, cmdVals[0], string(out))
}
log.Println("Verify flags.")
var (
awsCreds *AwsCredentials
err error
)
{
// When project root directory is empty or set to current working path, then search for the project root by locating
// the go.mod file.
if flags.ProjectRoot == "" || flags.ProjectRoot == "." {
log.Println("\tAttempting to location project root directory from current working directory.")
var err error
flags.GoModFile, err = findProjectGoModFile()
if err != nil {
return err
}
flags.ProjectRoot = filepath.Dir(flags.GoModFile)
} else {
log.Println("\t\tUsing supplied project root directory.")
flags.GoModFile = filepath.Join(flags.ProjectRoot, "go.mod")
}
log.Printf("\t\t\tproject root: %s", flags.ProjectRoot)
log.Printf("\t\t\tgo.mod: %s", flags.GoModFile )
log.Printf("\t%s\tFound project root directory.", tests.Success)
log.Println("\tExtracting go module name from go.mod.")
flags.GoModName, err = loadGoModName(flags.GoModFile )
if err != nil {
return err
}
log.Printf("\t\t\tmodule name: %s", flags.GoModName)
log.Printf("\t%s\tgo module name.", tests.Success)
log.Println("\tDetermining the project name.")
flags.ProjectName = getTargetEnv(flags.Env, "PROJECT_NAME")
if flags.ProjectName != "" {
log.Printf("\t\t\tproject name: %s", flags.ProjectName)
log.Printf("\t%s\tFound env variable.", tests.Success)
} else {
flags.ProjectName = filepath.Base(flags.GoModName)
log.Printf("\t\t\tproject name: %s", flags.ProjectName)
log.Printf("\t%s\tSet from go module.", tests.Success)
}
log.Println("\tAttempting to locate service directory from project root directory.")
flags.DockerFile, err = findServiceDockerFile(flags.ProjectRoot, flags.ServiceName)
if err != nil {
return err
}
flags.ServiceDir = filepath.Dir(flags.DockerFile)
log.Printf("\t\t\tservice directory: %s", flags.ServiceDir)
log.Printf("\t\t\tdockerfile: %s", flags.DockerFile)
log.Printf("\t%s\tFound service directory.", tests.Success)
log.Println("\tVerify AWS credentials.")
{
awsCreds, err = GetAwsCredentials(flags.Env)
if err != nil {
return err
}
log.Printf("\t\t\tAccessKeyID: %s", awsCreds.AccessKeyID)
log.Printf("\t\t\tRegion: %s", awsCreds.Region)
log.Printf("\t\t\tRepository Name: %s", awsCreds.EcrRepositoryName)
log.Printf("\t%s\tAWS credentials valid.", tests.Success)
}
log.Println("\tSet defaults not defined in env vars.")
{
// Set default AWS Registry Name if needed.
if awsCreds.EcrRepositoryName == "" {
awsCreds.EcrRepositoryName = flags.ProjectName
log.Printf("\t\t\tSet ECR Repository Name to '%s'.", awsCreds.EcrRepositoryName )
}
// Set default AWS Registry Name if needed.
if awsCreds.EcsClusterName == "" {
awsCreds.EcsClusterName = flags.ProjectName + "-" + flags.Env
log.Printf("\t\t\tSet ECS Cluster Name to '%s'.", awsCreds.EcsClusterName )
}
// Set default AWS Registry Name if needed.
if awsCreds.EcsServiceName == "" {
awsCreds.EcsServiceName = flags.ServiceName + "-" + flags.Env
log.Printf("\t\t\tSet ECS Service Name to '%s'.", awsCreds.EcsServiceName )
}
// Set default AWS Registry Name if needed.
if awsCreds.CloudWatchLogGroupName == "" {
awsCreds.CloudWatchLogGroupName = fmt.Sprintf("logs/env_%s/aws/ecs/cluster_%s/service_%s", flags.Env, awsCreds.EcsClusterName, flags.ServiceName)
log.Printf("\t\t\tSet CloudWatch Log Group Name to '%s'.", awsCreds.CloudWatchLogGroupName )
}
log.Printf("\t%s\tDefaults set.", tests.Success)
}
}
// Pull the current env variables to be passed in for command execution.
envVars := EnvVars(os.Environ())
// Load the ECR repository.
log.Println("ECR - Get or create repository.")
var awsRepo *ecr.Repository
{
svc := ecr.New(awsCreds.Session())
descRes, err := svc.DescribeRepositories(&ecr.DescribeRepositoriesInput{
RepositoryNames: []*string{aws.String(awsCreds.EcrRepositoryName)},
})
if err != nil {
if aerr, ok := err.(awserr.Error); !ok || aerr.Code() != ecr.ErrCodeRepositoryNotFoundException {
return errors.Wrapf(err, "failed to describe repository '%s'", awsCreds.EcrRepositoryName)
}
} else if len(descRes.Repositories) > 0 {
awsRepo = descRes.Repositories[0]
log.Printf("\t\tFound: %s.", *awsRepo.RepositoryArn)
log.Println("\t\tChecking old ECR images.")
delIds, err := EcrPurgeImages(awsCreds)
if err != nil {
return err
}
// If there are image IDs to delete, delete them.
if len(delIds) > 0 {
log.Printf("\t\tDeleted %d images that exceeded limit of %d", len(delIds), awsCreds.EcrRepositoryMaxImages)
for _, imgId := range delIds {
log.Printf("\t\t\t%s", *imgId.ImageTag)
}
}
} else {
// If no repository was found, create one.
createRes, err := svc.CreateRepository(&ecr.CreateRepositoryInput{
RepositoryName: aws.String(awsCreds.EcrRepositoryName),
Tags: []*ecr.Tag{
&ecr.Tag{Key: aws.String(awsTagNameProject), Value: aws.String(flags.ProjectName)},
&ecr.Tag{Key: aws.String(awsTagNameEnv), Value: aws.String(flags.Env)},
},
})
if err != nil {
return errors.Wrapf(err, "failed to create repository '%s'", awsCreds.EcrRepositoryName)
}
awsRepo = createRes.Repository
log.Printf("\t\tCreated: %s.", *awsRepo.RepositoryArn)
}
if len(flags.BuildTags) > 0 {
if flags.ReleaseImage == "" {
flags.ReleaseImage = *awsRepo.RepositoryUri + ":" + flags.BuildTags[0]
}
} else if flags.ReleaseImage == "" {
tag1 := flags.Env + "-" + flags.ServiceName
flags.BuildTags = append(flags.BuildTags, tag1)
if v := os.Getenv("CI_COMMIT_REF_NAME"); v != "" {
tag2 := tag1 + "-" + v
flags.BuildTags = append(flags.BuildTags, tag2)
flags.ReleaseImage = *awsRepo.RepositoryUri+":"+tag2
} else {
flags.ReleaseImage = *awsRepo.RepositoryUri+":"+tag1
}
}
log.Printf("\t\trelease image: %s", flags.ReleaseImage)
log.Printf("\t\ttags: %s", strings.Join(flags.BuildTags, " "))
log.Printf("\t%s\tRelease image valid.", tests.Success)
log.Println("ECR - Retrieve authorization token used for docker login.")
dockerLogin, err := GetEcrLogin(awsCreds)
if err != nil {
return err
}
log.Println("\t\texecute docker login")
_, err = execCmds(flags.ProjectRoot, &envVars, dockerLogin)
if err != nil {
return err
}
log.Printf("\t%s\tDocker login complete.", tests.Success)
}
// Do the docker build.
if flags.NoBuild == false {
cmdVals := []string{
"docker",
"build",
"--file=" + flags.DockerFile,
"--build-arg", "service=" + flags.ServiceName,
"--build-arg", "env=" + flags.Env,
"-t", releaseImage,
}
// Append the build tags.
for _, t := range buildTags {
cmdVals = append(cmdVals, "-t")
cmdVals = append(cmdVals, releaseImage+":"+t)
}
if flags.NoCache == true {
cmdVals = append(cmdVals, "--no-cache")
}
cmdVals = append(cmdVals, ".")
log.Printf("starting docker build: \n\t\t%s", strings.Join(cmdVals, " "))
out, err := execCmds(flags.ProjectRoot, &envVars, cmdVals)
if err != nil {
return err
}
// Push the newly built docker container to the registry.
if flags.NoPush == false {
log.Printf("\t\tpush release image %s", releaseImage)
_, err = execCmds(flags.ProjectRoot, &envVars, []string{"docker", "push", releaseImage})
if err != nil {
return err
}
// Push all the build tags.
for _, t := range buildTags {
log.Printf("\t\tpush tag %s", t)
_, err = execCmds(flags.ProjectRoot, &envVars, []string{"docker", "push", releaseImage + ":" + t})
if err != nil {
return err
}
}
}
log.Printf("\t%s\tbuild complete.\n", tests.Success)
if flags.Debug {
log.Println(string(out[0]))
}
}
// Exit and don't continue if skip deploy.
if flags.NoDeploy == true {
return nil
}
log.Println("Datadog - Get API Key")
var datadogApiKey string
{
// Load Datadog API Key which can be either stored in an env var or in AWS Secrets Manager.
// 1. Check env vars for [DEV|STAGE|PROD]_DD_API_KEY and DD_API_KEY
datadogApiKey = getTargetEnv(flags.Env, "DD_API_KEY")
// 2. Check AWS Secrets Manager for datadog entry prefixed with target env.
if datadogApiKey == "" {
prefixedSecretId := strings.ToUpper(flags.Env) + "/DATADOG"
var err error
datadogApiKey, err = GetAwsSecretValue(awsCreds, prefixedSecretId)
if err != nil {
if aerr, ok := errors.Cause(err).(awserr.Error); !ok || aerr.Code() != secretsmanager.ErrCodeResourceNotFoundException {
return err
}
}
}
// 3. Check AWS Secrets Manager for datadog entry.
if datadogApiKey == "" {
secretId := "DATADOG"
datadogApiKey, err = GetAwsSecretValue(awsCreds, secretId)
if err != nil {
if aerr, ok := errors.Cause(err).(awserr.Error); !ok || aerr.Code() != secretsmanager.ErrCodeResourceNotFoundException {
return err
}
}
}
if datadogApiKey != "" {
log.Printf("\t%s\tAPI Key set.\n", tests.Success)
} else {
log.Printf("\t%s\tAPI Key NOT set.\n", tests.Failed)
}
}
log.Println("CloudWatch Logs - Get or Create Log Group")
{
logGroupCreated, err := CloudWatchLogsGetOrCreateLogGroup(awsCreds, flags.ProjectName, flags.Env, awsCreds.CloudWatchLogGroupName)
if err != nil {
return err
}
if logGroupCreated {
log.Printf("\t\tCreated: %s.", awsCreds.CloudWatchLogGroupName)
} else {
log.Printf("\t\tFound: %s.", awsCreds.CloudWatchLogGroupName)
}
log.Printf("\t%s\tUsing Log Group '%s'.\n", tests.Success, awsCreds.CloudWatchLogGroupName)
}
log.Println("ECS - Get or Create Cluster")
var ecsCluster *ecs.Cluster
{
var clusterCreated bool
ecsCluster, clusterCreated, err = EscGetOrCreateCluster(awsCreds, flags.ProjectName, flags.Env, awsCreds.EcsClusterName)
if err != nil {
return err
}
if clusterCreated {
log.Printf("\t\tCreated: %s.", *ecsCluster.ClusterArn)
} else {
log.Printf("\t\tFound: %s.", *ecsCluster.ClusterArn)
// The number of services that are running on the cluster in an ACTIVE state.
// You can view these services with ListServices.
log.Printf("\t\t\tActiveServicesCount: %d.", *ecsCluster.ActiveServicesCount)
// The number of tasks in the cluster that are in the PENDING state.
log.Printf("\t\t\tPendingTasksCount: %d.", *ecsCluster.PendingTasksCount)
// The number of container instances registered into the cluster. This includes
// container instances in both ACTIVE and DRAINING status.
log.Printf("\t\t\tRegisteredContainerInstancesCount: %d.", *ecsCluster.RegisteredContainerInstancesCount)
// The number of tasks in the cluster that are in the RUNNING state.
log.Printf("\t\t\tRunningTasksCount: %d.", *ecsCluster.RunningTasksCount)
}
// The status of the cluster. The valid values are ACTIVE or INACTIVE. ACTIVE
// indicates that you can register container instances with the cluster and
// the associated instances can accept tasks.
log.Printf("\t\t\tStatus: %s.", *ecsCluster.Status)
log.Printf("\t%s\tUsing ECS Cluster '%s'.\n", tests.Success, *ecsCluster.ClusterName)
}
log.Println("ECS - Register task definition")
var taskDef *ecs.TaskDefinition
{
// List of placeholders that can be used in task definition and replaced on deployment.
placeholders := map[string]string{
"{SERVICE}": flags.ServiceName,
"{ECS_CLUSTER}": awsCreds.EcsClusterName,
"{ECS_SERVICE}": awsCreds.EcsServiceName,
"{AWSLOGS_GROUP}": awsCreds.CloudWatchLogGroupName,
"{ENV}": flags.Env,
"{DATADOG_APIKEY}": datadogApiKey,
}
// Loop through all the placeholders and create a list of keys to search json.
var pks []string
for k, _ := range placeholders {
pks = append(pks, k)
}
// Generate new regular expression for finding placeholders.
expr := "(" + strings.Join(pks, "|") + ")"
r, err := regexp.Compile(expr)
if err != nil {
return err
}
// Read the defined json task definition.
dat, err := EcsReadTaskDefinition(flags.ServiceDir, flags.Env)
if err != nil {
return err
}
// Replace placeholders used in the JSON task definition.
{
jsonStr := string(dat)
matches := r.FindAllString(jsonStr, -1)
if len(matches) > 0 {
log.Println("\t\tUpdating placeholders.")
replaced := make(map[string]bool)
for _, m := range matches {
if replaced[m] {
continue
}
replaced[m] = true
newVal := placeholders[m]
log.Printf("\t\t\t%s -> %s", m, newVal)
jsonStr = strings.Replace(jsonStr, m, newVal, -1)
}
}
dat = []byte(jsonStr)
}
//if flags.Debug {
// log.Println(string(dat))
//}
log.Println("\t\tParse JSON to task definition.")
taskDefInput, err := parseTaskDefinitionInput(dat)
if err != nil {
return err
}
if taskDefInput.Family == nil || *taskDefInput.Family == "" {
taskDefInput.Family = &flags.ServiceName
}
if len(taskDefInput.ContainerDefinitions) > 0 {
if taskDefInput.ContainerDefinitions[0].Name == nil || *taskDefInput.ContainerDefinitions[0].Name == "" {
taskDefInput.ContainerDefinitions[0].Name = &awsCreds.EcsServiceName
}
if taskDefInput.ContainerDefinitions[0].Image == nil || *taskDefInput.ContainerDefinitions[0].Image == "" {
taskDefInput.ContainerDefinitions[0].Image = &awsCreds.EcsServiceName
}
}
//if flags.Debug {
// d, _ := json.Marshal(taskDef)
// log.Println(string(d))
//}
log.Printf("\t\t\tFamily: %s", *taskDefInput.Family)
log.Printf("\t\t\tExecutionRoleArn: %s", *taskDefInput.ExecutionRoleArn)
if taskDefInput.TaskRoleArn != nil {
log.Printf("\t\t\tTaskRoleArn: %s", *taskDefInput.TaskRoleArn)
}
if taskDefInput.NetworkMode != nil {
log.Printf("\t\t\tNetworkMode: %s", *taskDefInput.NetworkMode)
}
log.Printf("\t\t\tTaskDefinitions: %d", len(taskDefInput.ContainerDefinitions))
// If memory or cpu for the task is not set, need to compute from container definitions.
if (taskDefInput.Cpu == nil || *taskDefInput.Cpu == "") || (taskDefInput.Memory == nil || *taskDefInput.Memory == "") {
log.Println("\t\tCompute CPU and Memory for task definition.")
var (
totalMemory int64
totalCpu int64
)
for _, c := range taskDefInput.ContainerDefinitions {
if c.Memory != nil {
totalMemory = totalMemory + *c.Memory
} else if c.MemoryReservation != nil {
totalMemory = totalMemory + *c.MemoryReservation
} else {
totalMemory = totalMemory + 1
}
if c.Cpu != nil {
totalCpu = totalCpu + *c.Cpu
} else {
totalCpu = totalCpu + 1
}
}
log.Printf("\t\t\tContainer Definitions has defined total memory %d and cpu %d", totalMemory, totalCpu)
var (
selectedMemory int64
selectedCpu int64
)
if totalMemory < 8192 {
if totalMemory > 7168 {
selectedMemory = 8192
if totalCpu >= 2048 {
selectedCpu=4096
} else if totalCpu >= 1024 {
selectedCpu = 2048
} else {
selectedCpu = 1024
}
} else if totalMemory > 6144 {
selectedMemory=7168
if totalCpu >= 2048 {
selectedCpu=4096
} else if totalCpu >= 1024 {
selectedCpu = 2048
} else {
selectedCpu = 1024
}
} else if totalMemory > 5120 || totalCpu >= 1024 {
selectedMemory=6144
if totalCpu >= 2048 {
selectedCpu=4096
} else if totalCpu >= 1024 {
selectedCpu = 2048
} else {
selectedCpu = 1024
}
} else if totalMemory > 4096 {
selectedMemory=5120
if totalCpu >= 512 {
selectedCpu = 1024
} else {
selectedCpu = 512
}
} else if totalMemory > 3072 {
selectedMemory=4096
if totalCpu >= 512 {
selectedCpu = 1024
} else {
selectedCpu = 512
}
} else if totalMemory > 2048 || totalCpu >= 512 {
selectedMemory=3072
if totalCpu >= 512 {
selectedCpu = 1024
} else {
selectedCpu = 512
}
} else if totalMemory > 1024 || totalCpu >= 256 {
selectedMemory=2048
if totalCpu >= 256 {
if totalCpu >= 512 {
selectedCpu = 1024
} else {
selectedCpu = 512
}
} else {
selectedCpu = 256
}
} else if totalMemory > 512 {
selectedMemory=1024
if totalCpu >= 256 {
selectedCpu = 512
} else {
selectedCpu = 256
}
} else {
selectedMemory=512
selectedCpu=256
}
}
log.Printf("\t\t\tSelected memory %d and cpu %d", selectedMemory, selectedCpu)
taskDefInput.Memory = aws.String(strconv.Itoa(int(selectedMemory)))
taskDefInput.Cpu = aws.String(strconv.Itoa(int(selectedCpu)))
}
log.Printf("\t%s\tLoaded task definition complete.\n", tests.Success)
// The execution role is the IAM role that executes ECS actions such as pulling the image and storing the
// application logs in cloudwatch.
if taskDefInput.ExecutionRoleArn == nil || *taskDefInput.ExecutionRoleArn == "" {
svc := iam.New(awsCreds.Session())
/*
res, err := svc.CreateServiceLinkedRole(&iam.CreateServiceLinkedRoleInput{
AWSServiceName: aws.String("ecs.amazonaws.com"),
Description: aws.String(""),
})
if err != nil {
return errors.Wrapf(err, "failed to register task definition '%s'", *taskDef.Family)
}
taskDefInput.ExecutionRoleArn = res.Role.Arn
*/
// Find or create role for ExecutionRoleArn.
{
roleName := fmt.Sprintf("ecsExecutionRole%s%s", flags.ProjectNameCamel(), strcase.ToCamel(flags.Env))
log.Printf("\tAppend ExecutionRoleArn to task definition input for role %s.", roleName)
res, err := svc.GetRole(&iam.GetRoleInput{
RoleName: aws.String(roleName),
})
if err != nil {
if aerr, ok := err.(awserr.Error); !ok || aerr.Code() != iam.ErrCodeNoSuchEntityException {
return errors.Wrapf(err, "failed to find task role '%s'", roleName)
}
}
if res.Role != nil {
taskDefInput.ExecutionRoleArn = res.Role.Arn
log.Printf("\t\t\tFound role '%s'", *taskDefInput.ExecutionRoleArn)
} else {
// If no repository was found, create one.
res, err := svc.CreateRole(&iam.CreateRoleInput{
RoleName: aws.String(roleName),
Description: aws.String(fmt.Sprintf("Provides access to other AWS service resources that are required to run Amazon ECS tasks for %s. ", flags.ProjectName)),
AssumeRolePolicyDocument: aws.String("{\"Version\":\"2012-10-17\",\"Statement\":[{\"Effect\":\"Allow\",\"Principal\":{\"Service\":[\"ecs.amazonaws.com\"]},\"Action\":[\"sts:AssumeRole\"]}]}"),
Tags: []*iam.Tag{
&iam.Tag{Key: aws.String(awsTagNameProject), Value: aws.String(flags.ProjectName)},
&iam.Tag{Key: aws.String(awsTagNameEnv), Value: aws.String(flags.Env)},
},
})
if err != nil {
return errors.Wrapf(err, "failed to create task role '%s'", roleName)
}
taskDefInput.ExecutionRoleArn = res.Role.Arn
log.Printf("\t\t\tCreated role '%s'", *taskDefInput.ExecutionRoleArn)
}
policyArns := []string{
"arn:aws:iam::aws:policy/service-role/AmazonECSTaskExecutionRolePolicy",
}
for _, policyArn := range policyArns {
_, err = svc.AttachRolePolicy(&iam.AttachRolePolicyInput{
PolicyArn: aws.String(policyArn),
RoleName: aws.String(roleName),
})
if err != nil {
return errors.Wrapf(err, "failed to attach policy '%s' to task role '%s'", policyArn, roleName)
}
log.Printf("\t\t\t\tAttached Policy '%s'", policyArn)
}
log.Printf("\t%s\tExecutionRoleArn updated.\n", tests.Success)
}
}
// The task role is the IAM role used by the task itself to access other AWS Services. To access services
// like S3, SQS, etc then those permissions would need to be covered by the TaskRole.
if taskDefInput.TaskRoleArn == nil || *taskDefInput.TaskRoleArn == "" {
svc := iam.New(awsCreds.Session())
// Find or create the default service policy.
var policyArn string
{
policyName := fmt.Sprintf("%s%sServices", flags.ProjectNameCamel(), strcase.ToCamel(flags.Env))
log.Printf("\tFind default service policy %s.", policyName)
var policyVersionId string
err = svc.ListPoliciesPages(&iam.ListPoliciesInput{}, func(res *iam.ListPoliciesOutput, lastPage bool) bool{
for _, p := range res.Policies {
if *p.PolicyName == policyName {
policyArn = *p.Arn
policyVersionId = *p.DefaultVersionId
return false
}
}
return !lastPage
})
if err != nil {
return errors.Wrap(err, "failed to list IAM policies")
}
if policyArn != "" {
log.Printf("\t\t\tFound policy '%s' versionId '%s'", policyArn, policyVersionId)
res, err := svc.GetPolicyVersion(&iam.GetPolicyVersionInput{
PolicyArn: aws.String(policyArn),
VersionId: aws.String(policyVersionId),
})
if err != nil {
if aerr, ok := err.(awserr.Error); !ok || aerr.Code() != iam.ErrCodeNoSuchEntityException {
return errors.Wrapf(err, "failed to read policy '%s' version '%s'", policyName, policyVersionId)
}
}
// Compare policy documents and add any missing actions for each statement by matching Sid.
var curDoc IamPolicyDocument
err = json.Unmarshal([]byte(*res.PolicyVersion.Document), &curDoc)
if err != nil {
return errors.Wrap(err, "failed to json decode policy document")
}
var updateDoc bool
for _, baseStmt := range baseServicePolicyDocument.Statement {
var found bool
for curIdx, curStmt := range curDoc.Statement {
if baseStmt.Sid != curStmt.Sid {
continue
}
for _, baseAction := range baseStmt.Action {
var hasAction bool
for _, curAction := range curStmt.Action {
if baseAction == curAction {
hasAction = true
break
}
}
if !hasAction {
log.Printf("\t\t\t\tAdded new action %s for '%s'", curStmt.Sid)
curStmt.Action = append(curStmt.Action, baseAction)
curDoc.Statement[curIdx] = curStmt
updateDoc = true
}
}
}
if !found {
log.Printf("\t\t\t\tAdded new statement '%s'", baseStmt.Sid)
curDoc.Statement = append(curDoc.Statement, baseStmt)
updateDoc = true
}
}
if updateDoc {
dat, err := json.Marshal(curDoc)
if err != nil {
return errors.Wrap(err, "failed to json encode policy document")
}
_, err = svc.CreatePolicyVersion(&iam.CreatePolicyVersionInput{
PolicyArn: aws.String(policyArn),
PolicyDocument: aws.String(string(dat)),
SetAsDefault: aws.Bool(true),
})
if err != nil {
if aerr, ok := err.(awserr.Error); !ok || aerr.Code() != iam.ErrCodeNoSuchEntityException {
return errors.Wrapf(err, "failed to read policy '%s' version '%s'", policyName, policyVersionId)
}
}
}
} else {
dat, err := json.Marshal(baseServicePolicyDocument)
if err != nil {
return errors.Wrap(err, "failed to json encode policy document")
}
// If no repository was found, create one.
res, err := svc.CreatePolicy(&iam.CreatePolicyInput{
PolicyName: aws.String(policyName),
Description: aws.String(fmt.Sprintf("Defines access for %s services. ", flags.ProjectName)),
PolicyDocument: aws.String(string(dat)),
})
if err != nil {
return errors.Wrapf(err, "failed to create task policy '%s'", policyName)
}
policyArn = *res.Policy.Arn
log.Printf("\t\t\tCreated policy '%s'", policyArn)
}
log.Printf("\t%s\tConfigured default service policy.\n", tests.Success)
}
// Find or create role for TaskRoleArn.
{
roleName := fmt.Sprintf("ecsTaskRole%s%s", flags.ProjectNameCamel(), strcase.ToCamel(flags.Env))
log.Printf("\tAppend TaskRoleArn to task definition input for role %s.", roleName)
res, err := svc.GetRole(&iam.GetRoleInput{
RoleName: aws.String(roleName),
})
if err != nil {
if aerr, ok := err.(awserr.Error); !ok || aerr.Code() != iam.ErrCodeNoSuchEntityException {
return errors.Wrapf(err, "failed to find task role '%s'", roleName)
}
}
if res.Role != nil {
taskDefInput.TaskRoleArn = res.Role.Arn
log.Printf("\t\t\tFound role '%s'", *taskDefInput.TaskRoleArn)
} else {
// If no repository was found, create one.
res, err := svc.CreateRole(&iam.CreateRoleInput{
RoleName: aws.String(roleName),
Description: aws.String(fmt.Sprintf("Allows ECS tasks for %s to call AWS services on your behalf. ", flags.ProjectName)),
AssumeRolePolicyDocument: aws.String("{\"Version\":\"2012-10-17\",\"Statement\":[{\"Effect\":\"Allow\",\"Principal\":{\"Service\":[\"ecs-tasks.amazonaws.com\"]},\"Action\":[\"sts:AssumeRole\"]}]}"),
Tags: []*iam.Tag{
&iam.Tag{Key: aws.String(awsTagNameProject), Value: aws.String(flags.ProjectName)},
&iam.Tag{Key: aws.String(awsTagNameEnv), Value: aws.String(flags.Env)},
},
})
if err != nil {
return errors.Wrapf(err, "failed to create task role '%s'", roleName)
}
taskDefInput.TaskRoleArn = res.Role.Arn
log.Printf("\t\t\tCreated role '%s'", *taskDefInput.TaskRoleArn)
//_, err = svc.UpdateAssumeRolePolicy(&iam.UpdateAssumeRolePolicyInput{
// PolicyDocument: ,
// RoleName: aws.String(roleName),
//})
//if err != nil {
// return errors.Wrapf(err, "failed to create task role '%s'", roleName)
//}
}
_, err = svc.AttachRolePolicy( &iam.AttachRolePolicyInput{
PolicyArn: aws.String(policyArn),
RoleName: aws.String(roleName),
})
if err != nil {
return errors.Wrapf(err, "failed to attach policy '%s' to task role '%s'", policyArn, roleName)
}
log.Printf("\t%s\tTaskRoleArn updated.\n", tests.Success)
}
}
log.Println("\tRegister new task definition.")
taskDef, err = EscRegisterTaskDefinition(awsCreds, taskDefInput)
if err != nil {
return err
}
log.Printf("\t\tRegistered: %s.", *taskDef.TaskDefinitionArn)
log.Printf("\t\t\tRevision: %d.", *taskDef.Revision)
log.Printf("\t\t\tStatus: %s.", *taskDef.Status)
log.Printf("\t%s\tTask definition registered.\n", tests.Success)
}
log.Println("ECS - Find Service")
var ecsService *ecs.Service
{
svc := ecs.New(awsCreds.Session())
res, err := svc.DescribeServices(&ecs.DescribeServicesInput{
Services: []*string{aws.String(awsCreds.EcsServiceName)},
})
if err != nil {
if aerr, ok := err.(awserr.Error); !ok || aerr.Code() != ecs.ErrCodeServiceNotFoundException {
return errors.Wrapf(err, "failed to describe service '%s'", awsCreds.EcsServiceName)
}
} else if len( res.Services) > 0 {
ecsService = res.Services[0]
log.Printf("\t\tFound: %s.", *ecsService.ServiceArn)
// The desired number of instantiations of the task definition to keep running
// on the service. This value is specified when the service is created with
// CreateService, and it can be modified with UpdateService.
log.Printf("\t\t\tDesiredCount: %d.", *ecsService.DesiredCount)
// The number of tasks in the cluster that are in the PENDING state.
log.Printf("\t\t\tPendingCount: %d.", *ecsService.PendingCount)
// The number of tasks in the cluster that are in the RUNNING state.
log.Printf("\t\t\tRunningCount: %d.", *ecsService.RunningCount)
// The status of the service. The valid values are ACTIVE, DRAINING, or INACTIVE.
log.Printf("\t\t\tStatus: %s.", *ecsService.Status)
log.Printf("\t%s\tUsing ECS Service '%s'.\n", tests.Success, *ecsService.ServiceName)
} else {
log.Printf("\t%s\tExisting ECS Service not found.\n", tests.Success)
}
}
// If the service exists update the service, else create a new service.
if ecsService != nil {
log.Println("ECS - Update Service")
svc := ecs.New(awsCreds.Session())
// If the desired count is zero because it was spun down for termination of staging env, update to launch
// with at least once task running for the service.
desiredCount := *ecsService.DesiredCount
if desiredCount == 0 {
desiredCount = 1
}
_, err = svc.UpdateService(&ecs.UpdateServiceInput{
// The short name or full Amazon Resource Name (ARN) of the cluster that your
// service is running on. If you do not specify a cluster, the default cluster
// is assumed.
Cluster: ecsCluster.ClusterName,
// The name of the service to update.
Service: ecsService.ServiceName,
// The number of instantiations of the task to place and keep running in your
// service.
DesiredCount: aws.Int64(desiredCount),
// Whether to force a new deployment of the service. Deployments are not forced
// by default. You can use this option to trigger a new deployment with no service
// definition changes. For example, you can update a service's tasks to use
// a newer Docker image with the same image/tag combination (my_image:latest)
// or to roll Fargate tasks onto a newer platform version.
ForceNewDeployment: aws.Bool(false),
// The period of time, in seconds, that the Amazon ECS service scheduler should
// ignore unhealthy Elastic Load Balancing target health checks after a task
// has first started. This is only valid if your service is configured to use
// a load balancer. If your service's tasks take a while to start and respond
// to Elastic Load Balancing health checks, you can specify a health check grace
// period of up to 1,800 seconds. During that time, the ECS service scheduler
// ignores the Elastic Load Balancing health check status. This grace period
// can prevent the ECS service scheduler from marking tasks as unhealthy and
// stopping them before they have time to come up.
HealthCheckGracePeriodSeconds: ecsService.HealthCheckGracePeriodSeconds,
// The family and revision (family:revision) or full ARN of the task definition
// to run in your service. If a revision is not specified, the latest ACTIVE
// revision is used. If you modify the task definition with UpdateService, Amazon
// ECS spawns a task with the new version of the task definition and then stops
// an old task after the new version is running.
TaskDefinition: taskDef.TaskDefinitionArn,
})
if err != nil {
return errors.Wrapf(err, "failed to update service '%s'", *ecsService.ServiceName)
}
log.Printf("\t%s\tUpdated ECS Service '%s'.\n", tests.Success, *ecsService.ServiceName)
} else {
log.Println("ECS - Create Service")
svc := ecs.New(awsCreds.Session())
}
return nil
}
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