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scaling-aws-ecs's Introduction

scaling-aws-ecs

Learn how to build and deploy a fault tolerant, scalable and load balanced AP on AWS ECS.

Scaling Docker on AWS
https://www.udemy.com/scaling-docker-on-aws

Skills

  1. Docker
  2. AWS
  3. AWS ECR
  4. AWS ECS
  5. AWS RDS
  6. AWS S3
  7. AWS ELB
  8. AWS ElastiCache

AWS Scaling

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AWS ECS Compare with Other Services

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Install docker, docker-machine, docker-compose on Linux

  > https://store.docker.com
  > https://docs.docker.com/engine/installation/linux/docker-ce/ubuntu/
  > curl -sSL https://get.docker.com/ | sh (install latest docker using script)
  > docker version
  > sudo usermod -aG docker <linux user> (add user in docker group)
  > curl -L https://github.com/docker/machine/releases/download/v0.12.2/docker-machine-`uname -s`-`uname -m` >/tmp/docker-machine && chmod +x /tmp/docker-machine && sudo cp /tmp/docker-machine /usr/local/bin/docker-machine (install docker machine)
  > docker-machine version
  > sudo -i
  > sudo curl -L 
  https://github.com/docker/compose/releases/download/1.16.1/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose (install docker compose)
  > chmod +x /usr/local/bin/docker-compose
  > exit
  > docker-compose version

AWS Set up Resource

Installing and Configuring the AWS CLI

  > sudo apt-get install curl
  > curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip" 
  > unzip awscli-bundle.zip
  > sudo ./awscli-bundle/install -i /usr/local/aws -b / /usr/local/bin/aws
  > rm -rf awscli-bundle.zip awscli-bundle
  > aws --version
  > aws configure
  > aws iam list-users

Creating an SSH Keypair (local pc ssh can connect ec2 instance)

  > aws ec2 create-key-pair --key-name aws-ice --query 'KeyMaterial' --output text > ~/.ssh/aws-ice.pem
  > chmod 400 ~/.ssh/aws-ice.pem
  > aws ec2 describe-key-pairs
  > aws ec2 describe-key-pairs --key-names aws-ice
  > aws ec2 delete-key-pair --key-names aws-ice (for delete)

Creating a Security Group (Security Group used for setting ec2 network rule)

  > aws ec2 create-security-group --group-name ice_sg_ap-northeast-1 --description "security group for ice on ap-northeast-1"
  > aws ec2 describe-security-groups --group-id sg-cxxxxxxx
  > aws ec2 authorize-security-group-ingress --group-id sg-cxxxxxxx --protocol tcp --port 22 --cidr 0.0.0.0/0
  > aws ec2 authorize-security-group-ingress --group-id sg-cxxxxxxx --protocol tcp --port 80 --cidr 0.0.0.0/0
  > aws ec2 authorize-security-group-ingress --group-id sg-cxxxxxxx --protocol tcp --port 5432 --cidr 0.0.0.0/0 --source-group sg-cxxxxxxx (for RDS)
  > aws ec2 authorize-security-group-ingress --group-id sg-cxxxxxxx --protocol tcp --port 6379 --cidr 0.0.0.0/0 --source-group sg-cxxxxxxx (for redis)
  > aws ec2 describe-security-groups --group-id sg-cxxxxxxx
  > aws ec2 delete-security-group --group-id sg-cxxxxxxx

Creating ECS IAM Roles (used for manage aws resource access permission)

ecsInstanceRole alt text ecsServiceRole alt text

ECS Components

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ECS Components Resource

AWS ECS Clusters

  > aws ecs create-cluster --cluster-name deepdive
  > aws ecs list-clusters
  > aws ecs describe-clusters --clusters deepdive
  > aws ecs delete-cluster --cluster deepdive
  > aws ecs create-cluster --cluster-name deepdive

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ECS Container Agent

  > aws s3api create-bucket --bucket ecs-deepdive --region ap-northeast-1 --create-bucket-configuration LocationConstraint=ap-northeast-1
  > cd deepdive
  > aws s3 cp ecs.config s3://ecs-deepdive/ecs.config (upload)
  > aws s3 ls s3://ecs-deepdive
  > aws s3 cp s3://ecs-deepdive/ecs.config ecs.config (download)

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Container Instances

  > cd deepdive
  > aws ec2 run-instances --image-id ami-21815747 --count 1 --instance-type t2.micro --iam-instance-profile Name=ecsInstanceRole --key-name aws-ice --security-group-ids sg-xxxxxx --user-data file://copy-ecs-config-to-s3 (aws-ice mean ssh key)
  > aws ec2 describe-instance-status --instance-ids i-06e2c776d598xxxxx
  > aws ec2 get-console-output --instance-id i-06e2c776d598xxxxx
  > aws ecs list-container-instances --cluster deepdive
  > aws ecs describe-container-instances --cluster deepdive --container-instances arn:aws:ecs:ap-northeast-1:28xxxxxxx:container-instance/01cf8a5e-6952-475c-b471-xxxxxxxx
  > aws ec2 terminate-instances --instance-ids i-06e2c776d598xxxxx (for delete instance)
  > ssh -i "aws-ice.pem" ec2-user@<ec2 instance ip> (ssh login ec2 instance)

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Task Definitions

  > cd deepdive
  > aws ecs register-task-definition --cli-input-json file://web-task-definition.json
  > aws ecs list-task-definitions
  > aws ecs list-task-definition-families
  > aws ecs describe-task-definition --task-definition web:1
  > aws ecs register-task-definition --cli-input-json file://web-task-definition.json (see "revision": 1 to "revision": 2)
  > aws ecs list-task-definitions
  > aws ecs deregister-task-definition --task-definition web:2 (delete revision 2)
  > aws ecs list-task-definitions
  > aws ecs register-task-definition help
  > aws ecs register-task-definition --generate-cli-skeleton

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ECS Scheduler
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Scheduling Services

  > cd deepdive
  > aws ecs create-service --cluster deepdive --service-name web --task-definition web --desired-count 1 (create 1 web service)
  > aws ecs list-services --cluster deepdive
  > aws ecs describe-services --cluster deepdive --services web
  > aws ec2 describe-instances (find Public DNS)
  > aws ecs update-service --cluster deepdive --service web --task-definition web --desired-count 2 (update web service to 2 instance)
  > aws ecs describe-services --cluster deepdive --services web (see only 1 runningCount, because the port 80 in used)
  > aws ecs update-service --cluster deepdive --service web --task-definition web --desired-count 0 (remove all task)
  > aws ecs delete-service --cluster deepdive --service web (delete web service)
  > aws ecs list-services --cluster deepdive
  > aws ecs create-service --generate-cli-skeleton

Run Task and Start Task

  > cd deepdive
  > aws ecs run-task --cluster deepdive --task-definition web --count 1 (auto select container-instance)
  > aws ecs list-tasks --cluster deepdive
  > aws ecs stop-task --cluster deepdive --task arn:aws:ecs:ap-northeast-1:2829XXXXXX:task/38890c8d-bd81-4998-be6d-527bXXXXXX
  > aws ecs list-tasks --cluster deepdive
  > aws ecs 
  > aws ecs list-container-instances --cluster deepdive
  > aws ecs start-task --cluster deepdive --task-definition web --container-instances arn:aws:ecs:ap-northeast-1:2829XXXXXX:container-instance/3233fc0a-8ba6-4698-abb4-817XXXXXX (specific select container-instance)
  > aws ecs stop-task --cluster deepdive --task arn:aws:ecs:ap-northeast-1:2829XXXXXX:task/b5d42a83-4276-46df-9cdb-0df6dXXXXXX

Private Docker Registry (ECR)

  > cd deepdive
  > aws ecr get-login --no-include-email --region ap-northeast-1 (see docker login -u AWS -p ......)
  > aws ecr create-repository --repository-name deepdive/nginx
  > aws ecr describe-repositories
  > aws ecr list-images --repository-name deepdive/nginx
  > docker pull nginx:1.9
  > docker image ls
  > docker tag nginx:1.9 2829XXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/deepdive/nginx:1.9
  > docker image ls
  > docker push 2829XXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/deepdive/nginx:1.9
  > aws ecr list-images --repository-name deepdive/nginx
  > aws ecs register-task-definition --cli-input-json file://web-task-definition.json
  > aws ecs run-task --cluster deepdive --task-definition web --count 1

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ECS CLI

  > https://github.com/aws/amazon­ecs­cli
  > http://docs.aws.amazon.com/AmazonECS/latest/developerguide/ECS_CLI_tutorial.html
  > ecs-cli images
  > ecs-cli ps --cluster deepdive

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Tearing down Our Cluster

  > aws ec2 terminate-instances --instance-ids i-06e2c776d59XXXXXX
  > aws s3 rm s3://ecs-deepdive --recursive
  > aws s3api delete-bucket --bucket deepdive
  > aws s3api delete-bucket --bucket ecs-deepdive
  > aws ecr delete-repository --repository-name deepdive/nginx --force
  > aws ecs delete-cluster --cluster deepdive
  > aws ecs deregister-task-definition --task-definition web

Developing the Ruby on Rails Application

Generating a New Rails Project

  > cd scaling-aws-ecs
  > docker run -v "$PWD":/usr/src/app -w /usr/src/app rails:4 rails new --skip-bundle dockerzon
  > docker image ls
  > docker image rm rails (if want to delete rails image)

Running the Application Locally

  > cd dockerzon
  > docker-compose up
  > docker volume ls
  > docker network ls
  > docker container ls
  > docker exec dockerzon_dockerzon_1 rake db:reset
  > curl 127.0.0.1:8000
  > docker exec dockerzon_dockerzon_1 rake db:migrate
  > curl 127.0.0.1:8000

Working with the Application

  > cd dockerzon
  > docker-compose up
  > docker exec dockerzon_dockerzon_1 rails g model Dummy foo
  > docker exec dockerzon_dockerzon_1 rails d model Dummy
  > docker exec -it dockerzon_dockerzon_1 bash
  > ls -al
  > exit
  > docker exec -it dockerzon_dockerzon_1 rails c
  > exit

Building the Demo Application

  > cd dockerzon
  > docker-compose up
  > docker exec dockerzon_dockerzon_1 rake db:migrate
  > docker exec -it dockerzon_redis_1 redis-cli
  > KEYS *
  > GET dockerzon::cache:total_hits
  > exit
  > docker exec -it dockerzon_dockerzon_1 rails c
  > Javelin.all
  > Javelin.sum(:thrown)
  > Javelin.count
  > Javelin.all.pluck(:thrown)
  > exit
  > docker-compose down -v

Preparing to Deploy Everything on AWS

Using and Configuring nginx

  > cd nginx (revise PLACEHOLDER_VHOST in docker-entrypoint.sh)
  > docker build -t dockerzon_nginx .
  > cd dockerzon
  > docker-compose up -d (ROR APP run on 8000 port)
  > docker container ls -a
  > docker run --rm -p 80:80 --net dockerzon_default dockerzon_nginx (nginx proxy 80 to 8000 port)
  > curl 127.0.0.1:80
  > cd nginx (revise PLACEHOLDER_VHOST in docker-entrypoint.sh)
  > docker build -t dockerzon_nginx .
  > cd dockerzon 
  > docker-compose stop

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Setting up an S3 Bucket

  > aws s3api create-bucket --bucket ecs-dockerzon --region ap-northeast-1 --create-bucket-configuration LocationConstraint=ap-northeast-1
  > aws s3 ls s3://ecs-dockerzon
  > cd s3-production-ecsconfig
  > aws s3 cp ecs.config s3://ecs-dockerzon/ecs.config (upload)
  > aws s3 ls s3://ecs-dockerzon

Setting up RDS for Postgres

  > aws rds create-db-instance --engine postgres --no-multi-az --no-publicly-accessible --vpc-security-group-ids sg-c782XXXX --db-instance-class db.t2.micro --allocated-storage 20 --db-instance-identifier dockerzon-production --db-name dockerzon_production --master-username dockerzon --master-user-password XXXXXXXX
  > aws rds modify-db-instance --db-instance-identifier dockerzon-production --master-user-password XXXXXX (if forget password for revise) 
  > aws rds describe-db-instances
  > aws rds delete-db-instance --db-instance-identifier docker-production --skip-final-snapshot (if want to delete)

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Setting up ElastiCache for Redis

  > aws elasticache create-cache-cluster --engine redis --security-group-ids sg-c78XXXXX --cache-node-type cache.t2.micro --num-cache-nodes 1 --cache-cluster-id dockerzon-production
  > aws elasticache describe-cache-clusters
  > aws elasticache describe-cache-clusters --show-cache-node-info
  > aws elasticache delete-cache-cluster --cache-cluster-id dockerzon-production (if want to delete)

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Setting up an Elastic Load Balancer

  > aws ec2 describe-subnets
  > aws elb create-load-balancer --load-balancer-name dockerzon-web --listeners "Protocol=HTTP, LoadBalancerPort=80, InstanceProtocol=HTTP, InstancePort=80" --subnets subnet-a03XXXX subnet-76XXXXX --security-groups sg-c78XXXX
  > aws elb describe-load-balancers
  > aws elb modify-load-balancer-attributes --load-balancer-name dockerzon-web --load-balancer-attributes "{\"ConnectionSettings\":{\"IdleTimeout\":5}}"
  > aws elb configure-health-check --load-balancer-name dockerzon-web --health-check "Target=HTTP:80/health_check, Timeout=5, Interval=30, UnhealthyThreshold=2, HealthyThreshold=10"
  > aws elb delete-load-balancer --load-balancer-name dockerzon-web (if want to delete)

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Visualizing the Application's Architecture

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Profiling the Ruby on Rails Application

  > cd dockerzon
  > add RAILS_ENV=production in .dockerzon.env top
  > docker-compose up -d
  > docker exec dockerzon_dockerzon_1 rake db:reset
  > curl http://127.0.0.1:8000
  > docker stats dockerzon_dockerzon_1 dockerzon_sidekiq_1
  > docker pull williamyeh/wrk
  > docker run --rm williamyeh/wrk -t10 -c50 -d10s http://<machine_ip>:8000
  > docker-compose stop
  > revise WEB_CONCURRENCY=2 in .dockerzon.env
  > docker stats dockerzon_dockerzon_1 dockerzon_sidekiq_1
  > docker run --rm williamyeh/wrk -t10 -c50 -d10s http://<machine_ip>:8000

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Deploying Everything with Amazon ECS

Introduction

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Creating the Production Cluster

  > cd production
  > aws ecs create-cluster --cluster-name production
  > aws s3api create-bucket --bucket ecs-dockerzon --region ap-northeast-1 --create-bucket-configuration LocationConstraint=ap-northeast-1
  > aws s3 ls s3://ecs-dockerzon
  > aws s3 cp ecs.config s3://ecs-dockerzon/ecs.config (upload)
  > aws s3 ls s3://ecs-dockerzon

Creating the Private Registry Repositories

  > aws ecr get-login --no-include-email --region ap-northeast-1
  > aws ecr create-repository --repository-name dockerzon/dockerzon
  > aws ecr create-repository --repository-name dockerzon/nginx
  > aws ecr describe-repositories
  > docker tag dockerzon_dockerzon:latest 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/dockerzon:latest
  > docker push 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/dockerzon
  > docker tag dockerzon_nginx:latest 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/nginx:latest
  > docker push 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/nginx

Spinning up Multiple Container Instances

  > cd production
  > aws ec2 run-instances --image-id ami-21815747 --count 3 --instance-type t2.micro --iam-instance-profile Name=ecsInstanceRole --key-name aws-ice --security-group-ids sg-c78xxxxx --user-data file://copy-ecs-config-to-s3
  > aws ecs list-container-instances --cluster production (--key-name mean ssh key to access ec2)

Registering the Task Definitions

  > cd dockerzon
  > docker-compose up -d
  > docker exec dockerzon_dockerzon_1 rake secret
  > cd production
  > aws ecs register-task-definition --cli-input-json file://worker-task-definition.json
  > aws ecs register-task-definition --cli-input-json file://web-task-definition.json
  > aws ecs register-task-definition --cli-input-json file://db-reset-task-definition.json
  > aws ecs run-task --cluster production --task-definition db-reset --count 1
  > aws ecs deregister-task-definition --task-definition db-reset:1
  > aws ecs register-task-definition --cli-input-json file://db-migrate-task-definition.json
  > aws ecs run-task --cluster production --task-definition db-migrate --count 1
  > aws ecs list-task-definitions

Scheduling Services

  > cd production
  > aws ecs create-service --cli-input-json file://web-service.json
  > aws ecs describe-services --cluster production --services web
  > aws ecs create-service --cli-input-json file://worker-service.json
  > aws ecs describe-services --cluster production --services worker
  > curl <aws_elb_dns_url>

Pushing Application Changes without Downtime

  > cd dockerzon
  > docker-compose build
  > docker tag dockerzon_dockerzon:latest 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/dockerzon:latest
  > aws ecr get-login --no-include-email --region ap-northeast-1
  > docker push 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/dockerzon
  > curl <aws_elb_dns_url>
  > cd production
  > aws ecs register-task-definition --cli-input-json file://web-task-definition.json
  > aws ecs update-service --cluster production --service web --task-definition web --desired-count 2
  > aws ecs register-task-definition --cli-input-json file://worker-task-definition.json
  > aws ecs update-service --cluster production --service worker -task-definition worker --desired-count 1
  > curl <aws_elb_dns_url>

Automating Your Deployments with a Script

  > cd production
  > ./deploy.sh -h
  > ./deploy.sh -a

Exploring the AWS Console and Container Logs

  > ssh -i "aws-ice.pem" ec2-user@<ec2_ip or ec2_dns>
  > docker container ls
  > docker container ls -a
  > docker logs -f <container_id or name> (watch log)
  > docker logs --tail 20 <container_id or name> (get tail 20 log)

Domain Names and SSL

Creating Free SSL Certificates with Amazon ACM

  > aws acm request-certificate --domain-name dockerzon.XXXXX.cc
  > aws acm describe-certificate --certificate-arn arn:aws:acm:ap-northeast-1:28XXXXXX:certificate/fab62309-4979-4805-b0a5-XXXXXX
  > aws acm list-certificates
  > aws acm delete-certificate --certificate-arn arn:aws:acm:ap-northeast-1:28XXXXXX:certificate/fab62309-4979-4805-b0a5-XXXXXX (if want delete)

Updating the Security Group to Handle SSL

  > aws ec2 authorize-security-group-ingress --group-id sg-c78XXXX --protocol tcp --port 443 --cidr 0.0.0.0/0

Updating the ELB to Handle SSL

  > aws elb create-load-balancer-listeners --load-balancer-name dockerzon-web --listeners "Protocol=HTTPS, LoadBalancerPort=443, InstanceProtocol=HTTP, InstancePort=80, SSLCertificateId=arn:aws:acm:ap-northeast-1:28XXXXX:certificate/fab62309-4979-4805-b0a5-XXXXXX"
  > aws elb describe-load-balancers --load-balancer-names dockerzon-web

Updating nginx to Handle SSL

  > cd nginx
  > docker build -t dockerzon_nginx .
  > cd production
  > docker tag dockerzon_nginx:latest 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/nginx
  > aws ecr get-login --no-include-email --region ap-northeast-1
  > docker push 28XXXXXXX.dkr.ecr.ap-northeast-1.amazonaws.com/dockerzon/nginx
  > aws ecs register-task-definition --cli-input-json file://web-task-definition.json
  > aws ecs update-service --cluster production --service web --task-definition web --desired-count 2
  > curl <https_aws_elb_dns_url>

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