About

A chart for Azure Pipeline agents. This chart builds off of the vsts-agent images, adds docker-in-docker support, and uses the new startup script start.sh from https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/docker?view=azure-devops.

Installation

First, add this repo to Helm:

helm repo add azp-agent https://raw.githubusercontent.com/ggmaresca/azp-agent/master/charts
helm repo update

Then use this command to install it:

helm upgrade --install --namespace=azp azp-agent azp-agent/azp-agent --set 'azp.url=https://dev.azure.com/accountName,azp.token=AzureDevopsAccessToken'

If Docker is enabled, the cluster must be capable of running privileged containers.

The Docker Image used can be found here. If you wish to use the deprecated VSTS agent Docker image provided by Microsoft, add the following argument to the Helm command:

--set 'azp.image.repository=microsoft/vsts-agent,azp.image.tag=ubuntu-16.04-docker-18.06.1-ce-standard,azp.useStartupScript=true'

Configuration

The values azp.token and azp.url are required to install the chart. azp.token is your Personal Acces token. This token requires Agent Pools (Read & Manage) permission. azp.url is your Azure Devops URL, usually https://dev.azure.com/<Your Organization>.

If docker.persistence.enabled is true and docker.persistence.name is equal to azp.persistence.name, then the AZP workspace and the Docker workspace will use a share volume.

When adding extra environment variables, you can set azp.extraEnv[x].secret=true to add the environment variable to the secret. This option requires value to be set instead of valueFrom.

If scaling.enabled is set to true, then:

• If scaling.cpu is set, a HorizontalPodAutoscaler will be created with the CPU scaling defined.
• If scaling.cpu is not set, azp-agent-autoscaler will get deployed in the release.

You can find the limit on parallel jobs by going to your project settings in Azure Devops, clicking on Parallel jobs, and viewing your limit of self-hosted jobs.

Parameter	Description	Default
replicaCount	Number of agents to deploy.	3
azp.workspace	The workspace folder location.	/workspace
azp.url	The Azure Devops account URL. ex: https://dev.azure.com/Organization
azp.token	The Azure Devops access token.
azp.existingSecret	An existing secret that contains the token.
azp.existingSecretKey	The key of the existing secret that contains the token.
azp.pool	The name of the pipeline pool.	kubernetes-azp-agents
azp.agentName	The name of the agent.	$(POD_NAME)
azp.useStartupScript	If true, mount the start.sh script from Microsoft as the run command. Ignored if azp.command is set.	false
azp.hostedToolCache	The path to the hosted tool cache.	/opt/hostedtoolcache
azp.image.repository	The Docker Hub repository of the agent.	docker.io/gmaresca/azure-pipeline-agent
azp.image.tag	The image tag of the agent.	ubuntu-18.04
azp.image.pullPolicy	The image pull policy of the agent.	IfNotPresent
azp.command	Override the container start command.	[]
azp.args	Override the container start args.	[]
azp.resources.requests.cpu	The CPU requests of the agent.	0.5
azp.resources.requests.memory	The memory requests of the agent.	2Gi
azp.resources.limits.cpu	The CPU limits of the agent.	1
azp.resources.limits.memory	The memory limits of the agent.	8Gi
azp.persistence.enabled	Whether to create a PersistentVolume for the workspace.	false
azp.persistence.name	The name of the volume for the workspace.	workspace
azp.persistence.toolCaches	Directories in the hosted tool cache to mount.	["helm","kubectl","kompose","docker","dotnet","dncr","dncs","NuGet","VsTest","node","go","ArtifactTool","Duffle"]
azp.persistence.labels	Labels to add to the PersistentVolume for the workspace.	{}
azp.persistence.accessModes	Access modes for the PersistentVolume for the workspace.	[ "ReadWriteOnce" ]
azp.persistence.selector	The label selector for the PVC for the workspace.	{}
azp.persistence.storageClassName	The storage class of the PersistentVolume for the workspace.	default
azp.persistence.storage	The requested capacity of the PersistentVolume for the workspace.	50Gi
azp.persistence.storageLimit	The capacity limit of the PersistentVolume for the workspace.	null
azp.lifecycle	Lifecycle (postStart, preStop) for the agent.	{}
azp.extraEnv	Extra environment variables to add to the agent.	[]
azp.extraVolumeMounts	Extra volume mounts to add to the agent.	[]
azp.securityContext	The security context for the agent container.	{}
docker.enabled	If the Docker sidecar should be enabled.	true
docker.tls	Enable TLS communication for Docker (requires Docker 19.03+).	true
docker.image.repository	The Docker Hub repository of Docker.	docker
docker.image.tag	The image tag of Docker.	19.03.5-dind
docker.image.pullPolicy	The image pull policy of Docker.	IfNotPresent
docker.command	Override the container start command.	[]
docker.args	Override the container start args.	[]
docker.resources.requests.cpu	The CPU requests of Docker.	0.5
docker.resources.requests.memory	The memory requests of Docker.	2Gi
docker.resources.limits.cpu	The CPU limits of Docker.	2
docker.resources.limits.memory	The memory limits of Docker.	16Gi
docker.persistence.enabled	Whether to create a PersistentVolume for Docker.	false
docker.persistence.name	The name of the volume for Docker.	workspace
docker.persistence.labels	Labels to add to the PersistentVolume for Docker.	{}
docker.persistence.accessModes	Access modes for the PersistentVolume for Docker.	[ "ReadWriteOnce" ]
docker.persistence.selector	The label selector for the PVC for Docker.	{}
docker.persistence.storageClassName	The storage class of the PersistentVolume for Docker.	default
docker.persistence.storage	The requested capacity of the PersistentVolume for Docker.	50Gi
docker.persistence.storageLimit	The capacity limit of the PersistentVolume for Docker.	null
docker.liveness.enabled	Enable a liveness probe on the Docker sidecar.	false
docker.liveness.failureThreshold	The failure threshold for the Docker sidecar liveness probe.	3
docker.liveness.initialDelaySeconds	The initial delay for the Docker sidecar liveness probe.	1
docker.liveness.periodSeconds	The Docker sidecar liveness probe period.	10
docker.liveness.successThreshold	The success threshold for the Docker sidecar liveness probe.	1
docker.liveness.timeoutSeconds	The timeout for the Docker sidecar liveness probe.	1
docker.lifecycle	Lifecycle (postStart, preStop) for Docker.	{}
docker.clean	Whether to run a preStop command to prune containers and images.	true
docker.extraEnv	Extra environment variables to add to Docker.	[]
docker.extraVolumeMounts	Extra volume mounts to add to Docker.	[]
docker.securityContext	The security context for the agent container.	{ privileged: true }
scaling.enabled	Whether to enable autoscaling	true
scaling.min	The minimum number of agent pods.	1
scaling.max	The maximum number of agent pods.	3
scaling.rate	The autoscaler period to poll Azure Devops and the Kubernetes API	10s
scaling.logLevel	Autoscaler log level (trace, debug, info, warn, error, fatal, panic)	info
scaling.scaleDownMax	The maximum number of pods allowed to scale down at a time	1
scaling.scaleDownDelay	The time to wait before being allowed to scale down again	10s
scaling.image.repository	The Docker Hub repository of the agent autoscaler.	docker.io/gmaresca/azp-agent-autoscaler
scaling.image.tag	The image tag of the agent autoscaler.	1.0.11
scaling.image.pullPolicy	The image pull policy of the agent autoscaler.	IfNotPresent
scaling.resources.requests.cpu	The CPU requests of the agent autoscaler.	0.05
scaling.resources.requests.memory	The memory requests of the agent autoscaler.	16Mi
scaling.resources.limits.cpu	The CPU limits of the agent autoscaler.	0.1
scaling.resources.limits.memory	The memory limits of the agent autoscaler.	32Mi
scaling.liveness.failureThreshold	The failure threshold for the autoscaler liveness probe.	3
scaling.liveness.initialDelaySeconds	The initial delay for the autoscaler liveness probe.	1
scaling.liveness.periodSeconds	The autoscaler liveness probe period.	10
scaling.liveness.successThreshold	The success threshold for the autoscaler liveness probe.	1
scaling.liveness.timeoutSeconds	The timeout for the autoscaler liveness probe.	1
scaling.updateStrategy.type	The Autoscaler Deployment Update Strategy type.	Recreate
scaling.pdb.enabled	Whether to enable a PodDisruptionBudget for the autoscaler.	false
scaling.rbac.create	Whether to create Role Based Access for the autoscaler.	true
scaling.rbac.psp.enabled	Whether to create a PodSecurityPolicy for the autoscaler.	false
scaling.rbac.psp.name	If set, the name of the autoscaler PodSecurityPolicy to use, or create if scaling.rbac.psp.enabled is true.
scaling.rbac.psp.labels	Labels to add to the autoscaler PodSecurityPolicy.	{}
scaling.rbac.psp.annotations	Annotations to add to the autoscaler PodSecurityPolicy.	{}
scaling.rbac.psp.appArmorProfile	The AppArmor profile to use for the autoscaler (if empty, AppArmor annotations will not be added to the PodSecurityPolicy).	runtime/default
scaling.rbac.psp.seccompProfile	The Seccomp profile to use for the autoscaler (if empty, seccomp annotations will not be added to the PodSecurityPolicy).	runtime/default
scaling.serviceAccount.create	Whether to create a service account for the autoscaler.	true
scaling.serviceAccount.name	The name of an existing SA scaling.serviceAccount.create is false.
scaling.serviceAccount.labels	Labels to add to the ServiceAccount for the autoscaler.	{}
scaling.serviceAccount.annotations	Annotations to add to the ServiceAccount for the autoscaler.	{}
scaling.serviceMonitor.enabled	Create a prometheus-operator ServiceMonitor	false
scaling.serviceMonitor.namespace	The namespace to install the ServiceMonitor	.Release.Namespace
scaling.serviceMonitor.labels	Labels to add to the ServiceMonitor	{}
scaling.serviceMonitor.honorLabels	Set honorLabels on the ServiceMonitor spec
scaling.serviceMonitor.interval	The scrape interval on the ServiceMonitor	Defaults to scaling.rate
scaling.serviceMonitor.metricRelabelings	metricRelabelings to set on the ServiceMonitor	false
scaling.serviceMonitor.relabelings	relabelings to set on the ServiceMonitor	false
scaling.grafanaDashboard.enabled	Create a ConfigMap with a Grafana dashboard.	false
scaling.grafanaDashboard.labels	Labels to add to the Grafana dashboard ConfigMap.	{"grafana_dashboard":"1"}
scaling.securityContext	The autoscaler pod security context.	{runAsUser:1000,runAsGroup:2000,fsGroup:3000,runAsNonRoot:true}
scaling.dnsPolicy	The autoscaler pod DNS policy.	null
scaling.dnsConfig	The autoscaler pod DNS config.	{}
scaling.restartPolicy	The autoscaler pod restart policy.	Always
scaling.nodeSelector	The autoscaler pod node selector.	{}
scaling.tolerations	The autoscaler pod node tolerations.	{}
scaling.affinity	The autoscaler pod node affinity.	{}
scaling.hostNetwork	Whether the autoscaler will use the host network of the node.	false
scaling.lifecycle	Lifecycle (postStart, preStop) for the autoscaler.	{}
scaling.initContainers	Init containers to add for the autoscaler.	[]
scaling.sidecars	Additional containers to add for the autoscaler.	[]
scaling.cpu	HorizontalPodAutoscaler CPU theshold.
nameOverride	An override value for the name.
fullnameOverride	An override value for the full name.
podManagementPolicy	The order that pods are created (OrderedReady or Parallel).	OrderedReady
revisionHistoryLimit	Number of StatefulSet versions to keep.	25
updateStrategy.type	The StatefulSet Update Strategy type.	RollingUpdate
updateStrategy.rollingUpdate	The StatefulSet RollingUpdate update strategy values.	{ partition: 0 }
imagePullSecrets	Image Pull Secrets to use.	[]
labels	Labels to add to the StatefulSet.	{}
annotations	Annotations to add to the StatefulSet.	{}
podLabels	Labels to add to the Pods.	{}
podAnnotations	Annotations to add to the Pods.	{}
pdb.enabled	Whether to enable a PodDisruptionBudget.	true
pdb.minAvailable	The minimum number of pods to keep. Incompatible with maxUnavailable.	50%
pdb.maxUnavailable	The maximum unvailable pods. Incompatible with minAvailable.
rbac.psp.enabled	Whether to create a PodSecurityPolicy for the StatefulSet.	false
rbac.psp.name	If set, the name of the PodSecurityPolicy to use, or create if rbac.psp.enabled is true.
rbac.psp.labels	Labels to add to the PodSecurityPolicy.	{}
rbac.psp.annotations	Annotations to add to the PodSecurityPolicy.	{}
rbac.psp.appArmorProfile	The AppArmor profile to use (if empty, AppArmor annotations will not be added to the PodSecurityPolicy).	runtime/default
rbac.psp.seccompProfile	The Seccomp profile to use (if empty, seccomp annotations will not be added to the PodSecurityPolicy).	runtime/default
rbac.psp.allowedCapabilities	The capabilities to allow for the PodSecurityPolicy.	['*']
rbac.psp.hostIPC	Whether to allow host IPC for the PodSecurityPolicy.	['*']
rbac.psp.hostPID	Whether to allow host PID for the PodSecurityPolicy.	['*']
rbac.psp.volumes	The volumes to allow for the PodSecurityPolicy.	['*']
rbac.psp.allowedFlexVolumes	The flex volumes to allow for the PodSecurityPolicy.	[]
serviceAccount.create	Whether to create a service account for the StatefulSet.	false
serviceAccount.name	The name of an existing SA serviceAccount.create is false.
serviceAccount.labels	Labels to add to the ServiceAccount.	{}
serviceAccount.annotations	Annotations to add to the ServiceAccount.	{}
extraVolumes	Extra volumes to add to the Pod.	[]
extraVolumeClaimTemplates	Extra volumes claim templates to add to the StatefulSet.	[]
dnsPolicy	The pod DNS policy.	null
dnsConfig	The pod DNS config.	{}
restartPolicy	The pod restart policy.	Always
nodeSelector	The pod node selector.	{}
tolerations	The pod node tolerations.	{}
affinity	The pod node affinity.	{}
securityContext	The pod security context.	{}
hostNetwork	Whether to use the host network of the node.	false
initContainers	Init containers to add.	[]
sidecars	Additional containers to add.	[]