AzureHPC

Overview

This project is aimed at simplifiying deployment and setup for HPC environments in Azure. The deployment scripts include setting up various building blocks available for Networking, Compute and Storage that are needed for an e2e setup. You can do this all with a few commands and fast as these are run in parallel.

They key motivation is:

• Simplified Automation
• Flexibility
• Speed of deployment

The basis for the project is a single JSON config file and some shell scripts for installing. The key point about the config file is that you can describe network, resources and installation steps. Tags are applied to resources that determines which resources run each install step.

The azhpc_* scripts only require the azure cli and a few utilities (bash, jq and ssh).

All of this is available in the Cloud Shell. Alternatively you can run on a Linux VM on Azure or from the Windows Ubuntu Shell.

Multiple examples for building blocks commonly used, scripts for building, installing and running some applications are included here so they can be used as you build your environment and run benchmarks.

We have also made some tutorials available that you can follow to not only learn more about the framework but also to understand how you can easily set an environment up e2e for your own application.

JSON configuration file

The JSON file is composed of the following:

• Variables dictionary
• Setup information
• Network dictionary
• Storage dictionary
• Resources dictionary
• Install list
• CycleCloud dictionary

Note : for the full config structure file see config.json

Variables dictionary

This allows variables to be created and used throughout the config file (see how this works here. This can be used when creating a template for others to use or just when the same value is repeated for many resources, e.g. choosing the OS image.

When creating templates for others to use the value should be <NOT-SET> so the azhpc-* commands will notify the user.

To allow a better reuse of variables across several configuration files the variable section can reference a file like this :

{
  "variables": "@variables.json"
}

The referenced file should contains variables this way :

{
    "image": "OpenLogic:CentOS:7.7:latest",
    "hpc_image": "OpenLogic:CentOS-HPC:7.7:latest",
    "location": "westeurope",
    "resource_group": "my resource group",
    "vm_type": "Standard_HB60rs",
    "vnet_resource_group": "variables.resource_group",
}

Setup information

The following properties are global :

Name	Description	Required	Default
location	The region where the resources are created	yes
resource_group	The resource group to put the resources	yes
install_from	The resource where the install script will be run	no
ssh_port	The port to use for SSH	no	22
admin_user	The admin user for all resources	yes
proximity_placement_group_name	The proximity group name to create	no
global_tags	Global tags to apply to all ARM resources	no

The azhpc-build command will generate an install script from the configuration file. This will be run from the install_from VM. The install_from VM must either have a public IP address or be accessible by hostname from where azhpc-build is run (i.e. run azhpc-build from a VM on the same vnet). The ssh_port refers to an additional port number where the ssh daemon will listen on VMs with a public IP address. The NSG rules will only be applied to the ssh_port number although port 22 will be accessible from within the vnet.

Network dictionary

The config file will create or reuse vnet and subnets from the config file.

Name	Description	Required	Default
resource_group	This can be used if different to the resources	no
name	Vnet name	yes
address_prefix	The address prefix (CIDR notation)	yes
subnets	Dictionary containing key-values for <subnet-name> and <subnet-address-prefix>	yes
dns_domain	Private domain name to create	no
peer	Dictionary of peer names to create	no
routes	Dictionary of route names to create	no
gateway	Specification of AAD based Azure VPN Gateway to create	no

Peer dictionary

This dictionary describes the virtual network peering to be created

Name	Description	Required	Default
resource_group	Name of the resource group containing the vnet to peer to	yes
vnet_name	Name of the vnet to peer to	yes
peer_allow_vnet_access	Allow traffic from peer network to vnet	no	True
peer_allow_forwarded_traffic	Allow traffic forwarded from vnet to peer network	no	True
vnet_allow_vnet_access	Allow traffic from vnet to peer virtual network	no	True
vnet_allow_forwarded_traffic	Allow traffic to be forwarded from peer virtual network to vnet	no	True
gateway	Dictionary of peer-gateway to create	no

This dictionary describes the configuration of virtual nework gateway used in the peering

Peer-Gateway dictionary

Name	Description	Required	Default
peer_allow_gateway_transit	Use the peer's gateway server	no	False
peer_allow_remote_gateways	Use the vnet's gateway server	no	False
vnet_allow_gateway_transit	Use the vnet's gateway server	no	False
vnet_allow_remote_gateways	Use the peer's gateway server	no	False

Route dictionary

This dictionary describes routes to be created

Name	Description	Required	Default
address_prefix	Address space (CIDR)	yes
next_hop	TO DOCUMENT	yes
subnet	TO DOCUMENT	yes

Gateway dictionary

This dictionary describes the virtual network peering to be created

Name	Description	Required	Default
name	Name of the VPN Gateway	yes
subnet	Subnet to be used for incoming clients of the gateway,	yes
	this MUST be "GatewaySubnet" and this subnet must be defined in the subnet section
aad_tenant	URL of the AAD tenant as https://login.microsoftonline.com/	yes
aad_audience	Application ID of the Azure VPN Enterprise registration in AAD	yes
aad_issuer	URL of the AAD issuer as https://sts.windows.net//	yes

Here is an example setup with four subnets:

...
"vnet": {
    "resource_group": "vnet-resource-group",
    "name": "hpcvnet",
    "address_prefix": "10.2.0.0/20",
    "subnets": {
        "admin": "10.2.1.0/24",
        "viz": "10.2.2.0/24",
        "storage": "10.2.3.0/24",
        "compute": "10.2.4.0/22"
    }
},
...

An example creating a new virtual network new-vnet with peering to an existing network old-vnet with a virtual network gateway which it will use

...
"vnet": {
    "name": "new-vnet",
    "resource_group": "new-vnet-rg",
    "address_prefix": "10.11.0.0/20",
    "subnets": {
        "default": "10.11.1.0/24",
        "data": "10.11.2.0/24"
    },
    "peer": {
        "old-vnet": {
            "resource_group": "old-rg",
            "vnet_name": "old-vnet",
            "gateway": {
                "peer_use_remote_gateways": true,
                "vnet_allow_gateway_transit": true
            }
        }
    }
},
...

Note: If the vnets/subnets exist it will use what it already there. In thta case the resource_group property of the vnet should be different from the one your deploy in

Storage dictionary

This dictionary desribes the storage resources to be created. Today only Azure NetApp files is supported, but additional ones will be added.

Name	Description	Required	Default
type	Type of storage - can be anf, storageaccount	yes
sku	Only for type=storageaccount can be Standard_LRS, Standard_GRS, Standard_RAGRS, Standard_ZRS, Premium_LRS, Premium_ZRS, Standard_GZRS, Standard_RAGZRS	yes
containers	Only for type=storageaccount. Array of containers name to create	no
subnet	Subnet name in which to inject ANF NICs	yes
joindomain	Domain name to join to	no
ad_server	Domain Server to connect to	no
ad_username	User to use to join the domain	no
ad_password	Domain password to join to	no
pools	Dictionary of ANF pools to create	yes

Pools dictionary

This dictionary describes the ANF pools to be created

Name	Description	Required	Default
service_level	Service Level - can be Ultra, Premium, or Standard	yes
size	Total pool size in TB. From 4 to 100	yes
volumes	Dictionary of ANF volumes in that pool	yes

ANF Volumes dictionary

This dictionary describes the ANF volumes in a pool to be created

Name	Description	Required	Default
size	Total volume size in TB. From 4 to 100	yes
type	Volume type (nfs or cifs)	yes	nfs
mount	Mount end point to export	yes

Resources dictionary

This dictionary describes the resources for the project.

Name	Description	Required	Default
type	The resource type, either "vm" or "vmss" is currently supported	yes
accelerated_networking	Boolean flag for whether to use accelerated networking	no	False
availability_set	Name of the availability set and it is created if not existing (vm only)	no
availability_zones	List of integer where the resource need to be created. Can be 1, 2 or 3	no
data_disks	Array of data disk size in GB	no
dns_name	The dns name to use. If this is not set, then the resource name with a uuid will be used (vm only)	no	uuid
fault_domain_count	FD count to use (vmss only)	no
image	For a public image use format OpenLogic:CentOS:7.7:latest - For a custom image use the imageID of a managed image	yes
instances	Number of VMs or VMSS instances to create	yes
low_priority	Boolean flag to se Spot Instance (Eviction = Delete)	no	False
managed_identity	Managed Identity property to use	no
nsg_allow	Enabled pre-defined NSG rules ssh, rdp, http, https, zcentral or grafana (vm only)	no	ssh/rdp
nsg_source_ip	Set source IP filter for NSG Allow rule. Default is allow all	no	[ "0.0.0.0/0" ]
ephemeral_os_disk	Set whether to use the ephermal disk for the operation system	no	False
ephemeral_os_disk_placement	Specifies the ephemeral disk placement. Possible values are: CacheDisk, ResourceDisk	no	CacheDisk
os_disk_size	OS Disk size in GB. This is only needed if you want to use a non default size or increase the OS disk size	no
os_storage_sku	OS Storage SKU. Premium_LRS, StandardSSD_LRS or Standard_LRS	no	Premium_LRS
overprovision	Allows a VMSS to provision additional VMs incase some don't start quickly	no	True
custom_data	File (@file) or URL indicating the location of the cloud-init script	no	None
proximity_placement_group	Boolean flag for wether to include the resource in the proximity placement group with the name specified in the global section	no	False
public_ip	Boolean flag for wether to use a public IP (vm only)	no	False
resource_tags	Tags to be assigned to the resources	no
single_placement_group	Used to place all VMs in a single VMSS in the same IB security group	no	True
subnet	Subnet name to create the resource in	yes
storage_cache	Datadisk storage cache mode. Can be None, ReadWrite or ReadOnly	no	ReadWrite
storage_sku	Data Disk Storage SKU. Premium_LRS, StandardSSD_LRS or Standard_LRS or UltraSSD_LRS (which needs availability_zones to be defined)	no	Premium_LRS
vm_type	VM Size for example Standard_D16s_v3	yes
tags	Array of tags used to specify which scripts need to be applied on the resource	no

NOTE : When using UltraSSD_LRS then an Availability Set must be used

Managed Identity property

Name	Description	Required	Default
role	MSI role : reader, contributor, or owner	yes
scope	MSI Scope resource_group	yes

Install array

This describes the steps to install after all the resources have been provisioned. An install script is created from the list which is run on the install_from VM. Each step is a dictionary containing the following:

Name	Description	Required	Default
script	The name of the script to run	yes
tag	The tag to select which resources will run this step	yes
sudo	Boolean flag for whether to run the script with sudo	no	False
deps	A list of dependent files to be copied on the install_from VM as well	no
args	A list containing the arguments for the script	no
copy	This is a list of files to copy to each resource from the install_from VM and assumes the file will have been downloaded as a previous step	no

Note: the script to run be the path relative to either the $azhpc_dir/scripts or a local scripts directory for the project. The local directory will take precedence over the $azhpc_dir/scripts.

Cycle Cloud dictionary

This describes the CycleCloud clusters configuration and projects to be uploaded to the current CycleCloud installation.

Name	Description	Required	Default
clusters	Dictionary of CycleCloud Clusters parameters	yes
projects	Dictionary of CycleCloud projects init scripts	yes

CycleCloud cluster dictionary

This describes the template and parameters to be applied on a CycleCloud cluster.

Name	Description	Required	Default
template	The name of the template or template file used to create the cluster.	yes
parameters	Dictionary of parameters defined in the template. The parameter list can be retrieved with the cyclecloud export_parameters command	yes

Note: If template is set to a cyclecloud template file, use the following naming format <scheduler_type>_<file_name>.txt . Where scheduler_type is either "slurm" or "pbs".

For ClusterInitSpecdefinition use thie following format, and make sure to use the same spec name in the projects dictionary

      "xxxClusterInitSpecs": {
          "projectname:specname:i.j.k": {
              "Order": 10000,
              "Name": "projectname:specname:i.j.k",
              "Spec": "specname",
              "Project": "projectname",
              "Version": "i.j.k",
              "Locker": "azure-storage"
          }
      }

CycleCloud projects dictionary

This describes the CycleCloud project containing cluster-init wrapper scripts to be uploaded in the CycleCloud locker. Each project name has to follow the CycleCloud naming convention projectname:specname:i.j.k and contains an array of scripts described below :

Name	Description	Required	Default
script	The name of the script to run	yes
deps	A list of dependent files	no
args	A list containing the arguments for the script	no
background	Run script in the background (true,false)	no	false

Macros in the config file

For the most part the configuration is just a standard JSON file although there are a few translations that can take place:

Syntax	Description
variables.<name>	Read a variable the variables dictionary
secret.<KEY-VAULT>.<SECRET-NAME>	Read a secret stored in an existing vault
sasurl.<STORAGE-ACCOUNT>.<STORAGE-PATH>[,<PERMISSION>[,<DURATION>]]	Create a SAS URL with permissions
fqdn.<RESOURCE-NAME>	Retrieve a resource FQDN
ip.<RESOURCE-NAME>	Retrieve a resource PRIVATE IP
sakey.<STORAGE-ACCOUNT>	Retrieve a storage key
saskey.<STORAGE-ACCOUNT>.<STORAGE-PATH>[,<PERMISSION>[,<DURATION>]]	Create a SAS KEY with permissions
laworkspace.<RESOURCE-GROUP>.<NAME>	Retrieve a Log Analytics workspace id
lakey.<RESOURCE-GROUP>.<NAME>	Retrieve a Log Analytics key
acrkey.<ACR-REPONAME>	Retrieve an Azure Container Registry key
image.<RESOURCE-GROUP>.<NAME>	Retrieve a Custom Image id

Variables

If a value is prefixed with variables. then it will take the value from the proceeding JSON path under the variables section. For example:

{
    "location": "variables.location",
    "variables": {
        "location": "westus2"
    }
}

In the example above, the location will be taken from variables.location.

Secrets

The scripts allow secrets to be stored in keyvault. To read from keyvault use the following format: secret.<KEY-VAULT>.<KEY-NAME>.

Note: this assumes the key vault is set up and the key is already stored there.

SAS URL

The config file can create a URL with a SAS key for a file in storage. This is the format: sasurl.<STORAGE-ACCOUNT>.<STORAGE-PATH>[,<PERMISSION>[,<DURATION>]]. PERMISSIONS are not required and is a list of letter for access permission : r, w, d, l. DURATION is optional and is an integer value and a unit which can be either h, d, or y (for hours, days, or years). The default for PERMISSIONS is r and the default for DURATION is 2h.

Note: the <STORAGE-PATH> should start at the container (and do not have a preceeding /)

Fqdn

The scripts allow FQDN of resources to be retrieved. This is the format: fqdn.<RESOURCE-NAME>.

Note: this assumes the resource name to be in the same resource group than the one defined in the configuration file.

Private IP

The scripts allow PRIVATE IP of resources to be retrieved. This is the format: ip.<RESOURCE-NAME>.

Note: this assumes the resource name to be in the same resource group than the one defined in the configuration file.

Storage Account Key

The scripts allow storage account key be retrieved. This is the format: sakey.<STORAGE-ACCOUNT>.

Note: this assumes the storage account to be in the same resource group than the one defined in the configuration file.

Storage SAS Key

The config file can create a SAS key for a file in storage. This is the format: saskey.<STORAGE-ACCOUNT>.<STORAGE-PATH>[,<PERMISSION>[,<DURATION>]]. PERMISSIONS are not required and is a list of letter for access permission : r, w, d, l. DURATION is optional and is an integer value and a unit which can be either h, d, or y (for hours, days, or years). The default for PERMISSIONS is r and the default for DURATION is 2h.

Note: the <STORAGE-PATH> should start at the container (and do not have a preceeding /)

Log Analytics workspace id

The config file allow to retrieve a Log Analytics workspace id. This is the format : laworkspace.<RESOURCE-GROUP>.<NAME>.

Note : The Log Analytics Workspace <NAME> need to exists in the resource group <RESOURCE-GROUP>

Log Analytics key

The config file allow to retrieve a Log Analytics key. This is the format : lakey.<RESOURCE-GROUP>.<NAME>.

Note : The Log Analytics Workspace <NAME> need to exists in the resource group <RESOURCE-GROUP>

ACR Key

The config file allow to retrieve an Azure Container Registry key. This is the format : acrkey.<ACR-REPONAME>.

Note : The Azure Container Registry repositery <ACR-REPONAME> need to exists

Custom Image Id

The config file allow to retrieve a custom image id. This is the format : image.<RESOURCE-GROUP>.<NAME>.

Referencing variables in variables names

There are some situation where you want to use variable values inside other variables like a keyvault name or a storage account name. To do this just enclose it with double curly braces {{}} like this :

    "variables": {
        "storage_account": "foo",
        "storage_key": "sakey.{{variables.storage_account}}",
        "la_resourcegroup": "myrg",
        "la_name": "myla",
        "log_analytics_workspace": "laworkspace.{{variables.la_resourcegroup}}.{{variables.la_name}}",
        "log_analytics_key": "lakey.{{variables.la_resourcegroup}}.{{variables.la_name}}",
    }

Commands

To set up the environment you first need to source $azhpc_dir/install.sh. This is only required once and will create a bin directory with all the commands aliases. It will also set the PATH for the current session (and so there is no issue in running multiple times but you may prefer to just add the bin directory to your bashrc).

The new version is now implemneted in Python and it will by default reuse the Python version provided as part of the Azure CLI.

Aliases have been created to allow an easier usage as well as a backward compatibility with the bash only version :

Aliases	Description
azhpc-build	Build the resources defined in the config file
azhpc-connect	This will connect to a node in a running cluster
azhpc-destroy	This will delete the resource group defined in the config file
azhpc-run_install	Just run the install and assume the resource are already there
azhpc-get	This will return the value of a variable from the config file
azhpc-init	Update or create variables in the config file
azhpc-preprocess	Preprocess the configuration file
azhpc-run	Run a command on one of multiple resources
azhpc-scp	Uses the scp to copy a file to/from the remote resource
azhpc-status	Show the uptime for all the resources in the project
azhpc-watch	This shows the provisioning state of all the resources in the project

azhpc-build

This will build you complete setup from the configuration file.

usage: azhpc build [-h] [--config-file CONFIG_FILE] [--debug] [--no-color]

deploy the config

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output
  --no-vnet             do not create vnet resources in the arm template

azhpc-connect

This will connect to a node in a running cluster.

usage: azhpc connect [-h] [--config-file CONFIG_FILE] [--debug] [--no-color]
                     [--user USER]
                     resource ...

connect to a resource

positional arguments:
  resource              the resource to connect to
  args                  additional arguments will be passed to the ssh command

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output
  --user USER, -u USER  the user to connect as

azhpc-destroy

Delete the resource group specified in the configuration file.

usage: azhpc destroy [-h] [--config-file CONFIG_FILE] [--debug] [--no-color]
                     [--force] [--no-wait]

delete the resource group

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output
  --force               delete resource group immediately
  --no-wait             do not wait for resources to be deleted

azhpc-run_install

Just run the install and assume the resources are already there.

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output
  --step STEP           the install step to start running

azhpc-get

Retrieve a value from the variables in the config file

usage: azhpc get [-h] [--config-file CONFIG_FILE] [--debug] [--no-color] path

get a config value

positional arguments:
  path                  the json path to evaluate

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output

azhpc-init

This utility initialises a new project and can set variables in the config file. The config argument can be a file or a directory where the contents are copied to the new project directory. If a directory is chosen then all files will be copied and any json files will have the variables replaced.

The -s option can be used to search for any variables with are <NOT-SET> in a config file. The output will be a string with the -v option containing all the variables to set.

usage: azhpc init [-h] [--config-file CONFIG_FILE] [--debug] [--no-color]
                  [--show] [--dir DIR] [--vars VARS]

initialise a project

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output
  --show, -s            display all vars that are <NOT-SET>
  --dir DIR, -d DIR     output directory
  --vars VARS, -v VARS  variables to replace in format VAR=VAL(,VAR=VAL)*

azhpc-preprocess

Preprocess the config file for any errors.

usage: azhpc preprocess [-h] [--config-file CONFIG_FILE] [--debug]
                        [--no-color]

preprocess the config file

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output

azhpc-run

This is a utility to run a command on one or more resource. Behind the scenes it uses the pssh command.

usage: azhpc run [-h] [--config-file CONFIG_FILE] [--debug] [--no-color]
                 [--user USER] [--nodes NODES]
                 ...

run a command on the specified resources

positional arguments:
  args                  the command to run

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output
  --user USER, -u USER  the user to run as
  --nodes NODES, -n NODES
                        the resources to run on (comma separated for multiple)

azhpc-scp

This uses the scp to copy a file (or directory if -r is added) to/from the remote resource. The resource hostname should be used.

usage: azhpc scp [-h] [--config-file CONFIG_FILE] [--debug] [--no-color] ...

secure copy

positional arguments:
  args                  the arguments passed to scp (use '--' to separate scp
                        arguments)

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output

azhpc-status

This is a utility to show the uptime for all the resources in the project

usage: azhpc status [-h] [--config-file CONFIG_FILE] [--debug] [--no-color]

show status of all the resources

optional arguments:
  -h, --help            show this help message and exit
  --config-file CONFIG_FILE, -c CONFIG_FILE
                        config file
  --debug               increase output verbosity
  --no-color            turn off color in output

azhpc-watch

This shows the provisioning state of all the resources in the project. If the -u option is used this will update for the specified interval time.

Command:
    azhpc-watch [options]

Arguments
    -h --help  : diplay this help
    -c --config: config file to use
                 default: config.json
    -u --update: update time in seconds
                 Use 0 for no updates
                 default: 0

HOWTO

Setting up Azure Key Vault

This is the command to create a Key Vault:

az keyvault create --name <keyvault-name> --resource-group <my-resource-group>

This is how you can add a secret:

az keyvault secret set --vault-name <keyvault-name> --name "<secret-name>" --value "<secret-vault>"

This can be accessed in the config file using the following value:

secret.<keyvault-name>.<secret-name>

Windows Subsystem for Linux

The private key needs to have access rights of 0600; when using WSL on the NTFS drive (c: drive); that is by default not allowed. To get this working: add the metadata option to the mount:

sudo umount /mnt/c
sudo mount -t drvfs C: /mnt/c -o metadata

or better, have an wsl.conf which adds the metadata when starting:

[automount]
enabled=true
options=metadata,uid=1000,gid=1000,umask=022

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.