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Prayag edited this page Mar 21, 2023 · 3 revisions 
$ sysctl -a | grep -E --color 'machdep.cpu.features|VMX' 
machdep.cpu.features: FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM PBE SSE3 PCLMULQDQ DTES64 MON DSCPL VMX EST TM2 SSSE3 FMA CX16 TPR PDCM SSE4.1 SSE4.2 x2APIC MOVBE POPCNT AES PCID XSAVE OSXSAVE SEGLIM64 TSCTMR AVX1.0 RDRAND F16C

brew install minikube

minikube start --vm-driver=docker
minikube start --vm-driver=hyperkit
😄  minikube v1.7.3 on Darwin 10.15.3
✨  Using the hyperkit driver based on user configuration
⌛  Reconfiguring existing host ...
🏃  Using the running hyperkit "minikube" VM ...
🐳  Preparing Kubernetes v1.17.3 on Docker 19.03.6 ...
🚀  Launching Kubernetes ... 
🌟  Enabling addons: default-storageclass, storage-provisioner

terraform init
terraform apply

once applied,

terraform show
# aws_instance.rest-api:
resource "aws_instance" "rest-api" {
    ami                          = "ami-2757f631"
    arn                          = "arn:aws:ec2:us-east-1:???:instance/i-07d4cbda6cf167177"
    associate_public_ip_address  = true
    availability_zone            = "us-east-1d"
    cpu_core_count               = 1
    cpu_threads_per_core         = 1
    disable_api_termination      = false
    ebs_optimized                = false
    get_password_data            = false
    id                           = "i-07d4cbda6cf167177"
    instance_state               = "running"
    instance_type                = "t2.micro"
    ipv6_address_count           = 0
    ipv6_addresses               = []
    monitoring                   = false
    primary_network_interface_id = "eni-08f641e076821a75f"
    private_dns                  = "ip-172-31-33-39.ec2.internal"
    private_ip                   = "172.31.33.39"
    public_dns                   = "ec2-3-85-132-181.compute-1.amazonaws.com"
    public_ip                    = "3.85.132.181"
    security_groups              = [
        "default",
    ]
    source_dest_check            = true
    subnet_id                    = "subnet-8becbcd7"
    tenancy                      = "default"
    volume_tags                  = {}
    vpc_security_group_ids       = [
        "sg-d35bb589",
    ]

    credit_specification {
        cpu_credits = "standard"
    }

    root_block_device {
        delete_on_termination = true
        iops                  = 100
        volume_id             = "vol-0516bf00e1179fc21"
        volume_size           = 8
        volume_type           = "gp2"
    }
}

after changing any configuration, do terraform apply

state

λ terraform state list
aws_instance.rest-api

provisioning

ansible --version
ansible 2.7.8
  config file = None
  configured module search path = [u'/Users/a1353612/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python2.7/site-packages/ansible
  executable location = /usr/local/bin/ansible
  python version = 2.7.15 (default, Dec 27 2018, 11:56:32) [GCC 4.2.1 Compatible Apple LLVM 10.0.0 (clang-1000.11.45.5)]

ansible-playbook rest-api-provisioning.yml

k8s

set ~/.kube/duwamish-dev-k8s-config and export as KUBECONFIG,

apiVersion: v1
clusters:
- cluster:
    server: https://???.sk1.us-east-1.eks.amazonaws.com
    certificate-authority-data: ???

  name: kubernetes
contexts:
- context:
    cluster: kubernetes
    user: aws
  name: aws
current-context: aws
kind: Config
preferences: {}
users:
- name: aws
  user:
    exec:
      apiVersion: client.authentication.k8s.io/v1alpha1
      command: aws-iam-authenticator
      args:
        - "token"
        - "-i"
        - "duwamish-dev-k8s"
      env:
        - name: AWS_PROFILE
          value: "duwamish-dev"

create cluster with nodes

brew tap weaveworks/tap
brew install weaveworks/tap/eksctl
brew upgrade eksctl && brew link --overwrite eksctl

eksctl create cluster \
--name duwamish-dev-k8s \
--version 1.13 \
--nodegroup-name standard-workers \
--node-type t3.medium \
--nodes 3 \
--nodes-min 1 \
--nodes-max 4 \
--node-ami auto \
--profile duwamish-dev \
--region us-east-1

create namespace

λ kubectl create namespace dev
namespace/dev created

set cluster environment prop

install minikube

kubectl create configmap cluster-env-config --from-env-file=k8s-cluster_nodes.properties --namespace dev
configmap/cluster-env-config created

https://github.com/redhat-developer-demos/spring-boot-configmaps-demo

gradle build

# instead of pushing your Docker image to a registry, 
# you can simply build the image using the same Docker host as the Minikube VM
eval $(minikube docker-env) 

docker build -t rest-server:v1 .
#docker run -it --rm -p 9090:8080 rest-server:v1

stop cluster

minikube stop
✋  Stopping "minikube" in hyperkit ...
🛑  "minikube" stopped.

debugging

kubectl get nodes
No resources found.

λ kubectl get events
LAST SEEN   TYPE      REASON                       KIND         MESSAGE
24s         Warning   FailedScheduling             Pod          no nodes available to schedule pods
21m         Normal    SuccessfulCreate             ReplicaSet   Created pod: rest-server-7b4bf5bcf-lrnnl
21m         Normal    EnsuringLoadBalancer         Service      Ensuring load balancer
21m         Warning   UnAvailableLoadBalancer      Service      There are no available nodes for LoadBalancer service default/rest-server
22m         Warning   CreatingLoadBalancerFailed   Service      Error creating load balancer (will retry): failed to ensure load balancer for service default/rest-server: AccessDenied: User: arn:aws:sts::???:assumed-role/???-dev-role/??? is not authorized to perform: ec2:DescribeAccountAttributes
            status code: 403, request id: c3e2c253-a5f1-11e9-9119-8b95ed7811a7
22m         Warning   CreatingLoadBalancerFailed   Service   Error creating load balancer (will retry): failed to ensure load balancer for service default/rest-server: AccessDenied: User: arn:aws:sts::??:assumed-role/???-dev-role/??? is not authorized to perform: ec2:DescribeAccountAttributes
            status code: 403, request id: c7326293-a5f1-11e9-bac1-03384bbdb957
21m         Normal    EnsuredLoadBalancer   Service      Ensured load balancer
21m         Normal    ScalingReplicaSet     Deployment   Scaled up replica set rest-server-7b4bf5bcf to 1



kubectl describe pod rest-server-7b4bf5bcf-lrnnl
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