Deploy VSTS Agent to AKS Cluster with Helm

azure-deploy-vsts.yml

resources:
- repo: self
  clean: true
queue:
  name: Hosted Ubuntu 1604
trigger:
  batch: true
  branches:
    include:
      - master
  paths:
    include:
      - 'Terraform/AKS/azure-deploy-vsts.yml'
variables:
- name: AGENT_COUNT
  value: '2'
- name: VSTS_ACCOUNT
  value: 'foo'
- name: VSTS_POOL
  value: 'Terraform Agents'
- group: 'VSTS-Agent-PAT'
steps:
- task: HelmInstaller@0
  displayName: 'Install Helm'
  inputs:
    kubectlVersion: 1.10.3
    checkLatestKubectl: true

- script: |
   docker pull quay.io/10thmagnitude/aks-vsts-agent:latest
   docker tag quay.io/10thmagnitude/aks-vsts-agent $(ACR_SHORTNAME).azurecr.io/aks-vsts-agent
  displayName: 'Pull and Tag'

- task: Docker@1
  displayName: 'Push to ACR'
  inputs:
    azureSubscriptionEndpoint: 'MySub'
    azureContainerRegistry: $(ACR_SHORTNAME).azurecr.io
    command: 'Push an image'
    imageName: 'aks-vsts-agent'

- task: Kubernetes@1
  displayName: 'kubectl get namespace tiller'
  inputs:
    azureSubscriptionEndpoint: 'MySub'
    azureResourceGroup: AKS_RG
    kubernetesCluster: AKS-CLUS01
    command: get
    arguments: 'namespace tiller'
  continueOnError: true

- task: Kubernetes@1
  displayName: 'kubectl create namespace tiller if previous step fails'
  inputs:
    azureSubscriptionEndpoint: 'MySub'
    azureResourceGroup: AKS_RG
    kubernetesCluster: AKS_CLUS01
    command: create
    arguments: 'namespace tiller'
  condition: failed()

- task: HelmDeploy@0
  displayName: 'helm init'
  inputs:
    azureSubscription: 'MySub'
    azureResourceGroup: AKS_RG
    kubernetesCluster: AKS_CLUS01
    command: init
    tillerNamespace: tiller

- script: |
   if [ -d "Docker/VSTS_AGENT/vsts-agent" ]; then
     cd Docker/VSTS_AGENT/vsts-agent
     git pull
   else
     git clone https://github.com/Azure/helm-vsts-agent Docker/VSTS_AGENT/vsts-agent
   fi
  displayName: 'Clone Helm Chart github.com/Azure/helm-vsts-agent'

- task: HelmDeploy@0
  displayName: 'helm install/upgrade'
  inputs:
    azureSubscription: 'MySub'
    azureResourceGroup: AKS_RG
    kubernetesCluster: AKS_CLUS01
    namespace: 'vsts-agent'
    command: upgrade
    chartType: FilePath
    chartPath: 'Docker/VSTS_AGENT/vsts-agent/charts/vsts-agent'
    releaseName: 'vsts-agent'
    overrideValues: 'image.repository=$(ACR_SHORTNAME).azurecr.io/aks-vsts-agent,vstsToken=$(VSTS_AGENT_PAT_BASE64),vstsAccount=$(VSTS_ACCOUNT),vstsPool="$(VSTS_POOL)",resources.requests.cpu=.5,resources.requests.memory=1Gi,resources.limits.cpu=1,resources.limits.memory=2Gi,replicas=$(AGENT_COUNT)'
    valueFile: 'Docker/VSTS_AGENT/vsts-agent/charts/vsts-agent/values.yaml'
    recreate: true
    resetValues: true
    tillerNamespace: tiller