mirror of
https://github.com/docker/compose.git
synced 2025-11-04 13:44:48 +01:00
133 lines
3.7 KiB
Go
133 lines
3.7 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package ecs
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import (
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"context"
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"encoding/base64"
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"fmt"
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"strings"
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"github.com/awslabs/goformation/v4/cloudformation"
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"github.com/awslabs/goformation/v4/cloudformation/autoscaling"
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"github.com/awslabs/goformation/v4/cloudformation/ecs"
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"github.com/awslabs/goformation/v4/cloudformation/iam"
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"github.com/compose-spec/compose-go/types"
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)
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const (
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placementConstraintAMI = "node.ami == "
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placementConstraintMachine = "node.machine == "
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)
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func (b *ecsAPIService) createCapacityProvider(ctx context.Context, project *types.Project, template *cloudformation.Template, resources awsResources) error {
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var (
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ec2 bool
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ami string
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machineType string
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)
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for _, service := range project.Services {
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if requireEC2(service) {
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ec2 = true
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// TODO once we can assign a service to a CapacityProvider, we could run this _per service_
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ami, machineType = getUserDefinedMachine(service)
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break
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}
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}
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if !ec2 {
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return nil
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}
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if ami == "" {
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recommended, err := b.aws.GetParameter(ctx, "/aws/service/ecs/optimized-ami/amazon-linux-2/gpu/recommended")
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if err != nil {
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return err
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}
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ami = recommended
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}
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if machineType == "" {
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t, err := guessMachineType(project)
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if err != nil {
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return err
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}
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machineType = t
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}
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template.Resources["CapacityProvider"] = &ecs.CapacityProvider{
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AutoScalingGroupProvider: &ecs.CapacityProvider_AutoScalingGroupProvider{
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AutoScalingGroupArn: cloudformation.Ref("AutoscalingGroup"),
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ManagedScaling: &ecs.CapacityProvider_ManagedScaling{
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TargetCapacity: 100,
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},
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},
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Tags: projectTags(project),
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}
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template.Resources["AutoscalingGroup"] = &autoscaling.AutoScalingGroup{
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LaunchConfigurationName: cloudformation.Ref("LaunchConfiguration"),
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MaxSize: "10", //TODO
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MinSize: "1",
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VPCZoneIdentifier: resources.subnetsIDs(),
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}
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userData := base64.StdEncoding.EncodeToString([]byte(
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fmt.Sprintf("#!/bin/bash\necho ECS_CLUSTER=%s >> /etc/ecs/ecs.config", project.Name)))
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template.Resources["LaunchConfiguration"] = &autoscaling.LaunchConfiguration{
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ImageId: ami,
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InstanceType: machineType,
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SecurityGroups: resources.allSecurityGroups(),
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IamInstanceProfile: cloudformation.Ref("EC2InstanceProfile"),
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UserData: userData,
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}
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template.Resources["EC2InstanceProfile"] = &iam.InstanceProfile{
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Roles: []string{cloudformation.Ref("EC2InstanceRole")},
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}
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template.Resources["EC2InstanceRole"] = &iam.Role{
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AssumeRolePolicyDocument: ec2InstanceAssumeRolePolicyDocument,
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ManagedPolicyArns: []string{
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ecsEC2InstanceRole,
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},
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Tags: projectTags(project),
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}
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cluster := template.Resources["Cluster"].(*ecs.Cluster)
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cluster.CapacityProviders = []string{
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cloudformation.Ref("CapacityProvider"),
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}
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return nil
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}
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func getUserDefinedMachine(s types.ServiceConfig) (ami string, machineType string) {
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if s.Deploy != nil {
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for _, s := range s.Deploy.Placement.Constraints {
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if strings.HasPrefix(s, placementConstraintAMI) {
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ami = s[len(placementConstraintAMI):]
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}
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if strings.HasPrefix(s, placementConstraintMachine) {
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machineType = s[len(placementConstraintMachine):]
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}
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}
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}
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return ami, machineType
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}
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