Taskfile.yaml

version: "3"
dotenv: [".env"]
output: prefixed
silent: true

vars:
  CLUSTER_NAME: istio-egress-gateway
  CONTEXT_NAME: "k3d-{{.CLUSTER_NAME}}"
  AGENT_NODE_NAME: k3d-{{.CLUSTER_NAME}}-agent
  SERVER_NODE_NAME: k3d-{{.CLUSTER_NAME}}-server
  ISTIO_VERSION: "1.7.8" # Match istio control plane version
  ISTIOCTL: "istioctl --context={{.CONTEXT_NAME}}"
  KUBECTL: "kubectl --context={{.CONTEXT_NAME}}"

tasks:
  #  _    _____     _
  # | | _|___ /  __| |
  # | |/ / |_ \ / _` |
  # |   < ___) | (_| |
  # |_|\_\____/ \__,_|

  k3d:cluster:all:
    prefix: ⚙️ > create
    desc: Setup local k3d cluster and install all dependencies.
    deps:
      - k3d:cluster:create
      - istio:install

  k3d:cluster:create:
    prefix: ⚙️ > create k3d cluster
    desc: create k3d cluster
    cmds:
      - |
        CLUSTER_ALREADY_EXISTS=$(k3d cluster list | grep {{.CLUSTER_NAME}})
        if [ -z "$CLUSTER_ALREADY_EXISTS" ]; then
          # cluster doesn't exist yet, so create it and install all CRDs
          k3d cluster create --config=k3d/config.yaml
          kubectl create ns istio-system
          kubectl label --overwrite ns/default istio-injection=enabled
          kubectl create ns cloud-main-system
          kubectl create ns employee-ns && kubectl label --overwrite ns/employee-ns istio-injection=enabled
          kubectl create ns non-employee-ns && kubectl label --overwrite ns/non-employee-ns istio-injection=enabled
        else
          echo Cluster {{.CLUSTER_NAME}} already exists.
        fi

  k3d:cluster:destroy:
    prefix: ⚙️ > destroy
    desc: destroy k3d cluster
    cmds:
      - "k3d cluster delete {{.CLUSTER_NAME}}"

  k3d:start:
    prefix: ⚙️ > start
    desc: starts k3d cluster
    cmds:
      - "k3d cluster start {{.CLUSTER_NAME}}"

  k3d:stop:
    prefix: ⚙️ > stop
    desc: stops k3d cluster
    cmds:
      - "k3d cluster stop {{.CLUSTER_NAME}}"

  #  _     _   _
  # (_)___| |_(_) ___
  # | / __| __| |/ _ \
  # | \__ \ |_| | (_) |
  # |_|___/\__|_|\___/

  istioctl:install:
    prefix: istioctl > install
    desc: Downloads Istioctl onto the user's machine in $HOME/bin.
    cmds:
      - ISTIO_ALREADY_INSTALLED=$(command -v istioctl) && if [[ $ISTIO_ALREADY_INSTALLED ]]; then echo istioctl is already installed; else curl -L https://istio.io/downloadIstio | ISTIO_VERSION={{.ISTIO_VERSION}} TARGET_ARCH=x86_64 sh - && mv istio-{{.ISTIO_VERSION}}/bin/istioctl $HOME/bin && rm -r istio-{{.ISTIO_VERSION}}; fi

  istio:operator-controller:
    prefix: istio-operator chart
    desc: Deploy Istio Operator Controller via helm chart.
    deps:
      - k3d:cluster:create
    cmds:
    - |
      helm install istio-operator chart/ \
      --set hub=docker.io/istio \
      --set tag=1.7.8-distroless \
      --set operatorNamespace=istio-operator \
      --set watchedNamespaces=istio-system

  istio:operator:
    prefix: istio operator
    desc: Installs Istio gateway onto the cluster using the Istio Operator.
    deps:
      - k3d:cluster:create
    cmds:
      - kubectl apply -f istio-operator.yaml