Designing a Project Lifecycle using Contracts and Constraints

Talk from Don Luchini at Boston DevOps meetup 3/23/2016

Transcript

1. Designing a Project Lifecycle using Contracts and Constraints Don Luchini Senior Software Engineer, EnerNOC Inc.
2. What We're Doing Roughly once per sprint, DevOps takes on a new project which puts code through the following CD pipeline: 1. Compile, unit test, and publish code. 2. Run Packer to create an image. – The image is provisioned using Chef. 3. Run CloudFormation to make a stack. 4. Run integration tests. Problem: every hour where no deployment exists equates to lost dev / QA productivity.
3. Guiding Principles • Assume the defaults are sane. • Componentize everything. • Every deployment should look and feel consistent with every other deployment. – This is NOT “lowest common denominator”. • Users (devs) should be able to understand and write the deployment code.
4. Building Code
5. Building Code mvn clean deploy
6. Building Code mvn clean deploy grunt clean deploy
7. Building Code mvn clean deploy grunt clean deploy rake clean deploy
8. Running Tests
9. Running Tests mvn integration-test -Dtest-endpoint=(some url)
10. Running Tests mvn integration-test -Dtest-endpoint=(some url) TEST_ENDPOINT=(some url) rake integration-test grunt integration-test --test-endpoint=(some url)
11. Problem: Packer templates are ugly { "builders": [ { "ami_name": "Packer myapp_development_32", "instance_type": "t2.micro", "launch_block_device_mappings": [{ "delete_on_termination": true, "device_name": "/dev/sda1", "volume_size": 8 }], "region": "us-east-1", "run_tags": { "build_number": "32", "chef_environment": "myapp-development", "date": "2016-03-03T18:40:36+00:00", "git_branch": "development", "git_commit": "3c87d6dfc1058ad3b08143fdce54f5bcd20adbde", "Name": "Packer myapp 32", "packer_project": "myapp" }, "security_group_id": "sg-8e06a7eb", "source_ami": "ami-57dbe53d", "ssh_username": "root", "subnet_id": "subnet-add89185", "tags": { "build_number": "32", "chef_environment": "myapp-development", "date": "2016-03-03T18:40:36+00:00", "git_branch": "development", "git_commit": "3c87d6dfc1058ad3b08143fdce54f5bcd20adbde", "Name": "Packer myapp development 32", "packer_project": "myapp" }, "type": "amazon-ebs", "vpc_id": "vpc-8f4db9ea", "name": "amazon-ebs" } ], "provisioners": [ { "inline": "mkdir -p /tmp/packer-chef-client/trusted_certs", "type": "shell" }, { "destination": "/tmp/packer-chef-client/trusted_certs/enernoc_root_ca.pem", "source": "/etc/pki/ca-trust/source/anchors/enernoc_root_ca.pem", "type": "file" }, { "execute_command": "chef-client --no-color -c {{.ConfigPath}} -j {{.JsonPath}}", "install_command": "if [ $(rpm -q chef | grep -c \\\"is not installed\\\" ) -gt 0 ]; then rpm -Uvh https://artifactory.release.enernoc.net/centos-6chef-12.4.1-1.el6.x86_64.rpm; fi && rm /etc/chef/client.pem | true", "node_name": "packer_myapp_development_32", "prevent_sudo": true, "server_url": "https://chef.infra.enoc.cc/organizations/enoc", "type": "chef-client", "validation_client_name": "enoc-validator", "validation_key_path": "/var/lib/jenkins/validator.pem", "chef_environment": "myapp-development", "run_list": [ "my_cookbook" ]
12. Solution: templatize them! Racker::Processor.register_template do |t| t.provisioners[100]['chef-client']['run_list'] = ['my_cookbook'] end
13. Solution: templatize them! Racker::Processor.register_template do |t| t.builders['amazon-ebs']['source_ami'] = 'ami-xxxxxxxx' t.provisioners[100]['chef-client']['run_list'] = ['my_cookbook'] end
14. Solution: templatize them! require 'base64' require 'json' require 'net/http' userdata = Base64.encode64( JSON.parse( Net::HTTP.get('security.service.local', '/api/v1/token') ).token ) Racker::Processor.register_template do |t| t.builders['amazon-ebs']['source_ami'] = 'ami-xxxxxxxx' t.builders['amazon-ebs']['user_data'] = userdata t.provisioners[100]['chef-client']['run_list'] = ['my_cookbook'] end
15. Deploying Code
16. Deploying Code include_recipe 'tomcat' tomcat_deploy 'my application' do artifact_id 'myapp' group_id 'org.my' version '1.0.0' end
17. Deploying Code include_recipe 'wildfly' wildfly_deploy 'my application' do artifact_id 'myapp' group_id 'org.my' version '1.0.0' end
18. Deploying Code include_recipe 'wildfly' wildfly_deploy 'my application' do artifact_id 'myapp' group_id 'org.my' version '1.0.0' end wildfly_logger 'org.apache' do level 'DEBUG' end wildfly_datasource 'myDS' do username 'user' password 'user' url 'jdbc:postgresql://some-server/some-database' type 'XA' end wildfly_splunk 'logs' do index 'myapp'
19. Deploying Code include_recipe 'apache' apache_deploy 'my UI' do artifact_id 'myui' group_id 'org.my' version '1.0.0' end
20. Deploying Code include_recipe 'nodejs' nodejs_deploy 'my node app' do app_start 'start_server.js' artifact_id 'mynodeapp' group_id 'org.my' version '1.0.0' end
21. Problem: CF templates are ugly {"AWSTemplateFormatVersion":"2010-09-09","Description":"Defines the full stack for the Stampede development environment.","Resources":{"SecurityGroup":{"Type":"AWS::EC2::SecurityGroup","Properties":{"GroupDescription":"Enable HTTP access via port 80 locked down to the load balancer + SSH access","SecurityGroupIngress":[{"IpProtocol":"tcp","FromPort":"80","ToPort":"80","CidrIp":"10.0.0.0/8"},{"IpProtocol":"tcp","FromPort":"80","ToPort":"80","CidrIp":"172.16.0.0/12"},{"IpProtocol":"tcp","FromPort":"22","ToPort":"22","CidrIp":"10.0.0.0/8"}, {"IpProtocol":"tcp","FromPort":"22","ToPort":"22","CidrIp":"172.16.0.0/12"},{"IpProtocol":"tcp","FromPort":"6379","ToPort":"6379","CidrIp":"172.16.0.0/12"},{"IpProtocol":"tcp","FromPort":"6379","ToPort":"6379","CidrIp":"10.0.0.0/8"}, {"IpProtocol":"tcp","FromPort":"8080","ToPort":"8080","CidrIp":"172.16.0.0/12"},{"IpProtocol":"tcp","FromPort":"8080","ToPort":"8080","CidrIp":"10.0.0.0/8"}],"VpcId":"vpc-8f4db9ea"}},"CacheRefresherELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties": {"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck":{"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg- 8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"ConfigELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties":{"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck": {"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg-8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"ConsumerELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties": {"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck":{"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg- 8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"TelemetryPullELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties":{"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck": {"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg-8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"TelemetryPushELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties": {"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck":{"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg- 8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"UIELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties":{"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck": {"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg-8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"XMPPELB":{"Type":"AWS::ElasticLoadBalancing::LoadBalancer","Properties": {"ConnectionSettings":{"IdleTimeout":25},"Listeners":[{"LoadBalancerPort":"80","InstancePort":"8080","Protocol":"HTTP"}],"HealthCheck":{"Target":"HTTP:8080/ping","HealthyThreshold":"2","UnhealthyThreshold":"5","Interval":"10","Timeout":"5"},"Scheme":"internal","SecurityGroups":["sg- 8e06a7eb"],"Subnets":["subnet-5f0b2319"]}},"AdamsLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData": {"Fn::Base64":"adamsworker"},"KeyName":"RETeam"}},"CacheRefresherLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData":{"Fn::Base64":"stampede- cache-refresher"},"KeyName":"RETeam"}},"ConfigLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData":{"Fn::Base64":"stampede- config"},"KeyName":"RETeam"}},"ConsumerLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.small","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData":{"Fn::Base64":"stampede- consumer"},"KeyName":"RETeam"}},"TelemetryPullLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData":{"Fn::Base64":"stampede-telemetry- pull"},"KeyName":"RETeam"}},"TelemetryPushLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData":{"Fn::Base64":"stampede-telemetry- push"},"KeyName":"RETeam"}},"UILaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData": {"Fn::Base64":"ui"},"KeyName":"RETeam"}},"XMPPLaunchConfig":{"Type":"AWS::AutoScaling::LaunchConfiguration","Properties":{"ImageId":"ami-a94981c2","InstanceType":"t2.micro","SecurityGroups":[{"Ref":"SecurityGroup"}],"UserData":{"Fn::Base64":"stampede- xmpp"},"KeyName":"RETeam"}},"AdamsASG":{"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east-1d"],"HealthCheckGracePeriod":180,"LaunchConfigurationName": {"Ref":"AdamsLaunchConfig"},"MinSize":"1","MaxSize":"2","HealthCheckType":"EC2","Tags":[{"Key":"Name","Value":"stampede-dev-adams","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet-5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate": {"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"CacheRefresherASG":{"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east-1d"],"HealthCheckGracePeriod":180,"LaunchConfigurationName": {"Ref":"CacheRefresherLaunchConfig"},"MinSize":"1","MaxSize":"2","HealthCheckType":"ELB","LoadBalancerNames":[{"Ref":"CacheRefresherELB"}],"Tags":[{"Key":"Name","Value":"stampede-dev-cacherefresher","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet- 5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate":{"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"ConfigASG":{"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east- 1d"],"HealthCheckGracePeriod":180,"LaunchConfigurationName":{"Ref":"ConfigLaunchConfig"},"MinSize":"1","MaxSize":"2","HealthCheckType":"ELB","LoadBalancerNames":[{"Ref":"ConfigELB"}],"Tags":[{"Key":"Name","Value":"stampede-dev- config","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet-5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate":{"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"ConsumerASG": {"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east-1d"],"HealthCheckGracePeriod":180,"LaunchConfigurationName":{"Ref":"ConsumerLaunchConfig"},"MinSize":"1","MaxSize":"2","HealthCheckType":"ELB","LoadBalancerNames": [{"Ref":"ConsumerELB"}],"Tags":[{"Key":"Name","Value":"stampede-dev-consumer","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet-5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate": {"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"TelemetryPullASG":{"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east-1d"],"HealthCheckGracePeriod":180,"LaunchConfigurationName": {"Ref":"TelemetryPullLaunchConfig"},"MinSize":"1","MaxSize":"2","HealthCheckType":"ELB","LoadBalancerNames":[{"Ref":"TelemetryPullELB"}],"Tags":[{"Key":"Name","Value":"stampede-dev-telemetrypull","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet- 5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate":{"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"TelemetryPushASG":{"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east- 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[{"Key":"Name","Value":"stampede-dev-ui","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet-5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate":{"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"XMPPASG": {"Type":"AWS::AutoScaling::AutoScalingGroup","Properties":{"AvailabilityZones":["us-east-1d"],"HealthCheckGracePeriod":180,"LaunchConfigurationName":{"Ref":"XMPPLaunchConfig"},"MinSize":"1","MaxSize":"2","HealthCheckType":"ELB","LoadBalancerNames": [{"Ref":"XMPPELB"}],"Tags":[{"Key":"Name","Value":"stampede-dev-xmpp","PropagateAtLaunch":true}],"VPCZoneIdentifier":["subnet-5f0b2319"]},"UpdatePolicy":{"AutoScalingRollingUpdate": {"MaxBatchSize":1,"MinInstancesInService":0,"PauseTime":"PT0S","WaitOnResourceSignals":false}}},"CacheRefresherDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties":{"HostedZoneName":"enernoc.net.","RecordSets": [{"Name":"cacherefresher.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt":["CacheRefresherELB","CanonicalHostedZoneNameID"]},"DNSName":{"Fn::GetAtt":["CacheRefresherELB","DNSName"]}}}]}},"ConfigDNS": {"Type":"AWS::Route53::RecordSetGroup","Properties":{"HostedZoneName":"enernoc.net.","RecordSets":[{"Name":"config.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt":["ConfigELB","CanonicalHostedZoneNameID"]},"DNSName": {"Fn::GetAtt":["ConfigELB","DNSName"]}}}]}},"ConsumerDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties":{"HostedZoneName":"enernoc.net.","RecordSets":[{"Name":"consumer.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt": ["ConsumerELB","CanonicalHostedZoneNameID"]},"DNSName":{"Fn::GetAtt":["ConsumerELB","DNSName"]}}}]}},"RedisDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties":{"HostedZoneName":"enernoc.net.","RecordSets": [{"Name":"redis.development.stampede.enernoc.net","Type":"CNAME","TTL":"300","ResourceRecords":["stampede-dev.ahiuaq.0001.use1.cache.amazonaws.com"]}]}},"TelemetryPullDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties": {"HostedZoneName":"enernoc.net.","RecordSets":[{"Name":"telemetrypull.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt":["TelemetryPullELB","CanonicalHostedZoneNameID"]},"DNSName":{"Fn::GetAtt": ["TelemetryPullELB","DNSName"]}}}]}},"TelemetryPushDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties":{"HostedZoneName":"enernoc.net.","RecordSets":[{"Name":"telemetrypush.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt": ["TelemetryPushELB","CanonicalHostedZoneNameID"]},"DNSName":{"Fn::GetAtt":["TelemetryPushELB","DNSName"]}}}]}},"UIDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties":{"HostedZoneName":"enernoc.net.","RecordSets": [{"Name":"ui.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt":["UIELB","CanonicalHostedZoneNameID"]},"DNSName":{"Fn::GetAtt":["UIELB","DNSName"]}}}]}},"XMPPDNS":{"Type":"AWS::Route53::RecordSetGroup","Properties": {"HostedZoneName":"enernoc.net.","RecordSets":[{"Name":"xmpp.development.stampede.enernoc.net.","Type":"A","AliasTarget":{"HostedZoneId":{"Fn::GetAtt":["XMPPELB","CanonicalHostedZoneNameID"]},"DNSName":{"Fn::GetAtt":["XMPPELB","DNSName"]}}}]}}},"Outputs": {"WebsiteURL":{"Value":"http://ui.development.stampede.enernoc.net","Description":"Stampede UI"}}}
22. Solution: use more of them { "Type" : "AWS::CloudFormation::Stack", "Properties" : { "Parameters": { "AMI": { "Ref": "AMI" }, "Branch": { "Ref": "Branch" }, "FriendlyName": "My Cloud Application", "ProjectBaseURL": "my.org", “ServiceName": “myapp" }, "TemplateURL": “https://s3.amazonaws.com/b/universal-container-1.json” } }
23. Solution: use more of them { "Type" : "AWS::CloudFormation::Stack", "Properties" : { "Parameters": { "AMI": { "Ref": "AMI" }, "Branch": { "Ref": "Branch" }, "FriendlyName": "My Cloud Application", "HealthCheckEndpoint": "/api/v1/ping", "ProjectBaseURL": "my.org", “ServiceName": “myapp", }, "TemplateURL": “https://s3.amazonaws.com/b/universal-container-1.json" } }
24. Solution: use more of them { "Type" : "AWS::CloudFormation::Stack", "Properties" : { "Parameters": { "AMI": { "Ref": "AMI" }, "Branch": { "Ref": "Branch" }, "FriendlyName": "My Cloud Application", "InstancePort": 8080, "HealthCheckEndpoint": "/api/v1/ping", "ProjectBaseURL": "my.org", “ServiceName": “myapp", }, "TemplateURL": “https://s3.amazonaws.com/b/universal-container-1.json" } }
25. Solution: use more of them { "Type" : "AWS::CloudFormation::Stack", "Properties" : { "Parameters": { "AMI": { "Ref": "AMI" }, "Branch": { "Ref": "Branch" }, "FriendlyName": "My Cloud Application", "Instances": "4", "InstancePort": 8080, "InstanceType": "c4.large", "HealthCheckEndpoint": "/api/v1/ping", "MaxInstances": "8", "ProjectBaseURL": "my.org", “ServiceName": “myapp", }, "TemplateURL": “https://s3.amazonaws.com/b/universal-container-1.json" } }
26. Time to stack
27. Time to stack 1 hour
28. Helpful Links • Chef: https://docs.chef.io • CloudFormation: https://aws.amazon.com/documentation/cloudformation/ • Grunt: http://gruntjs.com • Maven: https://maven.apache.org/ • Packer: https://packer.io • Racker: https://github.com/aspring/racker • Rake: https://github.com/ruby/rake • Don L.: don@hardwarehacks.org