What You'll Learn

• Set Up an AWS Instance
• Install K3s
• Install Dynatrace Agent
• Install a Microservice Application on K3s
• Inspect Monitoring of the Application

• Open the AWS Console
• Search for EC2
• Click on Launch Instances
  • Step 1: Choose an Amazon Machine Image (AMI)
    • Amazon Linux 2 AMI (HVM), SSD Volume Type (x86)
  • Step 2: Choose an Instance Type
    • t3.medium
  • Step 3: Configure Instance Details
    • Keep Default
  • Step 4: Add Storage
    • Keep Default
  • Step 5: Add Tags
    • Name: podtatohead-k3s
  • Step 6: Configure Security Group
    • Create New Security Group
      • Security Group Name: podtatohead-http-in
      • Add Rules
        • Type: HTTP
        • Type: HTTPS
        • Rest Default
    • Review and Launch
  • Launch
  • Select an existing key-pair or create one
  • Launch instance

• Prerequisites:
  • Installed awscli
• Open a Shell
• Ensure that aws-cli is configured

cat ~/.aws/credentials

• Describe all Instances

aws ec2 describe-instances 

• You should see all EC2 Instances (in our case one)
• Query the Instance Name

aws ec2 describe-instances --filters "Name=tag:Name,Values=podtatohead-oauth" --query "Reservations[].Instances[].PublicDnsName" --out text | xargs
[
    "<instance-name>.compute-1.amazonaws.com"
]

• Put the Instance Name in a Variable

  INSTANCE_HOSTNAME=$(aws ec2 describe-instances --filters "Name=tag:Name,Values=podtatohead-oauth" --query "Reservations[].Instances[].PublicDnsName" --out text | xargs)

• Get the instance hostname from the AWS console (Public IPv4 DNS or Public IPv4 Address)
• Open a shell

 ssh -i ~/.ssh/labsuser.pem ec2-user@${INSTANCE_HOSTNAME}

      __|  __|_  )
      _|  (     /   Amazon Linux 2 AMI
     ___|\___|___|

 https://aws.amazon.com/amazon-linux-2/ 

• Open Dynatrace
• Click on "Manage -> Deploy Dynatrace"
  • Start Installation
  • Select "Linux"
  • "Create PaaS Token"
  • Copy the Download Link, paste it to the shell of your VM and execute it
  • Set "Custom Host Name" to your Student ID
  • Copy the installer execution command and run it on your vm as root (sudo)
• Wait until you see your host in Dynatrace ("Infrastructure -> Hosts")

• Open a shell to your host
• Install K3s

sudo -i
curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="server --no-deploy=traefik" sh -s -
export PATH=$PATH:/usr/local/bin

• Check if everything your k3s node is up

kubectl get nodes

NAME                            STATUS   ROLES                  AGE   VERSION
ip-172-31-12-239.ec2.internal   Ready    control-plane,master   18s   v1.22.7+k3s1

• Open a shell to your host
• Install the Manifest

kubectl apply -f https://raw.githubusercontent.com/fhb-codelabs/sample-code-repo/master/manifests/podtato-kubectl.yaml

• Wait until all pods are ready (kubectl get pods -n podtato-kubectl)
• Open PodTatoHead (http://your-ip-address)

• Open Dynatrace
• Inspect:
  • Infrastructure -> Hosts
  • Applications and Microservices -> Service -> entry
    • Service Flow
    • Distributed Traces
  • Observe and explore
    • SmartScape Topology
  • Whatever you like