Bicep Parser (WIP)

A Peggyjs grammar/parser generator for Azure Bicep. Converts bicep templates to an AST.

The grammar is currently quite rough around the edges, work very much still in progress.

TODO

• Implement proper unicode ranges for string chars
• Fix string indexed member expressions
• Complete AST ts types
• Handle in-built functions granularly

Run tests

1. npm i
2. npm run test

Example

Bicep input

Parsed AST

param yourName string var hello = 'Hello World! - Hi' output helloWorld string = '${hello} ${yourName}'

{ "type": "BICEP", "body": [ { "type": "ParameterDeclaration", "name": "yourName", "decorators": [], "dataType": "string", "expression": [] }, { "type": "VariableDeclaration", "name": "hello", "decorators": [], "expression": { "type": "String", "value": "Hello World! - Hi" } }, { "type": "OutputDeclaration", "id": "helloWorld", "decorators": [], "dataType": "string", "expression": { "type": "TemplateLiteral", "expressions": [ { "type": "Identifier", "name": "hello" }, { "type": "Identifier", "name": "yourName" } ], "quasis": [ { "type": "TemplateElement", "value": "", "tail": false }, { "type": "TemplateElement", "value": " ", "tail": false }, { "type": "TemplateElement", "value": "", "tail": true } ] } } ] }

Tests - Parsing Bicep Example Templates

Examples sourced from the Azure Bicep repo

186/203 test files successfully parsed

Example File	Parsed successfully?
000/01-hello-world/main.bicep	🟢 pass
000/10-string-functions/main.bicep	🟢 pass
000/11-multiline-strings/main.bicep	🟢 pass
000/20-array-loop/main.bicep	🟢 pass
000/21-array-lookup/main.bicep	🟢 pass
000/22-array-lookup-complex/main.bicep	🟢 pass
000/30-json-object-simple/main.bicep	🟢 pass
000/31-json-object-complex/main.bicep	🟢 pass
101/1vm-2nics-2subnets-1vnet/main.bicep	🟢 pass
101/aadds-dual-region-replica-sets/main.bicep	🟢 pass
101/aad-domainservices/main.bicep	🟢 pass
101/aci-linuxcontainer-public-ip/main.bicep	🟢 pass
101/aks-vmss-systemassigned-identity/main.bicep	🟢 pass
101/aks/main.bicep	🟢 pass
101/api-management-create-with-msi/main.bicep	🟢 pass
101/api-management-modular/NameValues.bicep	🟢 pass
101/api-management-modular/groups.bicep	🟢 pass
101/api-management-modular/main.bicep	🟢 pass
101/api-management-modular/users.bicep	🟢 pass
101/app-config/main.bicep	🟢 pass
101/app-service-regional-vnet-integration/main.bicep	🟢 pass
101/application-gateway-v2-autoscale-create/main.bicep	🟢 pass
101/azure-automation-account/main.bicep	🟢 pass
101/azure-bastion/main.bicep	🟢 pass
101/basic-batch-account/main.bicep	🟢 pass
101/azure-search-create/main.bicep	🟢 pass
101/azure-sentinel/main.bicep	🟢 pass
101/azure-spring-cloud/activedeployment.bicep	🟢 pass
101/azure-spring-cloud/main.bicep	🟢 pass
101/azurefirewall-create-with-zones/main.bicep	🟢 pass
101/create-managedidentity-rbac/main.bicep	🟢 pass
101/basic-publicip/main.bicep	🟢 pass
101/basic-publicip/publicIpAddress.bicep	🟢 pass
101/cognitive-services/main.bicep	🟢 pass
101/container-registry/main.bicep	🟢 pass
101/cosmosdb-free/main.bicep	🟢 pass
101/cosmosdb-private-endpoint/main.bicep	🟢 pass
101/cosmosdb-webapp/main.bicep	🟢 pass
101/create-rg-lock-role-assignment/applylock.bicep	🟢 pass
101/create-rg-lock-role-assignment/main.bicep	🟢 pass
101/custom-role-definition-assignment/main.bicep	🟢 pass
101/cyclecloud/main.bicep	🔴 fail
101/cyclecloud/sub.bicep	🟢 pass
101/data-factory-v2-blob-to-blob-copy/main.bicep	🟢 pass
101/data-factory-v2/main.bicep	🟢 pass
101/data-lake-store-encryption-adls/main.bicep	🟢 pass
101/databricks-all-in-one-template-for-vnet-injection/main.bicep	🟢 pass
101/databricks-workspace/main.bicep	🟢 pass
101/deployment-script-no-auth/main.bicep	🟢 pass
101/deployment-script-with-storage/main.bicep	🟢 pass
101/event-grid-servicebus-queue/main.bicep	🟢 pass
101/eventhub-namespace/main.bicep	🟢 pass
101/expressroute-circuit-create/main.bicep	🟢 pass
101/front-door-basic/main.bicep	🟢 pass
101/front-door-custom-domain/main.bicep	🟢 pass
101/front-door-redirect/main.bicep	🟢 pass
101/function-app-create/main.bicep	🟢 pass
101/function-http-trigger/main.bicep	🔴 fail
101/function-premium-vnet-integration/main.bicep	🟢 pass
101/hdinsight-spark-linux/main.bicep	🟢 pass
101/hub-and-spoke/main.bicep	🟢 pass
101/key-vault-create/main.bicep	🔴 fail
101/key-vault-secret-only/main.bicep	🟢 pass
101/logic-app-create/main.bicep	🟢 pass
101/media-services-create/main.bicep	🟢 pass
101/mg-policy/main.bicep	🟢 pass
101/monitor-action-groups/main.bicep	🟢 pass
101/nat-gateway-vnet/main.bicep	🔴 fail
101/private-dns-zone/main.bicep	🟢 pass
101/private-endpoint-webapp/main.bicep	🟢 pass
101/redis-cache/main.bicep	🟢 pass
101/resource-with-lock/main.bicep	🟢 pass
101/resource-with-lock-existing/main.bicep	🟢 pass
101/sql-database/main.bicep	🟢 pass
101/sqlmi-new-vnet/main.bicep	🟢 pass
101/storage-blob-container/main.bicep	🟢 pass
101/storage-static-website/main.bicep	🔴 fail
101/templatespec-create/main.bicep	🟢 pass
101/template-spec-deploy/main.bicep	🔴 fail
101/vm-simple-linux/main.bicep	🟢 pass
101/vm-simple-windows/main.bicep	🟢 pass
101/vnet-two-subnets/main.bicep	🟢 pass
101/web-app-linux/main.bicep	🟢 pass
101/web-app-windows/main.bicep	🟢 pass
101/webapp-managed-mysql/main.bicep	🟢 pass
101/webapp-privateendpoint-vnet-injection/main.bicep	🟢 pass
101/website-with-container/main.bicep	🟢 pass
101/avd-backplane/main.bicep	🟢 pass
201/1vm-2nics-2subnets-1vnet/main.bicep	🟢 pass
201/1vm-2nics-2subnets-1vnet/vm.bicep	🟢 pass
201/aci-sftp-files/main.bicep	🟢 pass
201/aci-wordpress/main.bicep	🟢 pass
201/anchored-proximity-placement-group/linux-vm-as.bicep	🟢 pass
201/anchored-proximity-placement-group/linux-vm-az.bicep	🟢 pass
201/anchored-proximity-placement-group/main.bicep	🟢 pass
201/anchored-proximity-placement-group/network.bicep	🟢 pass
201/anchored-proximity-placement-group/sub.bicep	🟢 pass
201/api-management-create-all-resources/main.bicep	🟢 pass
201/asev2-ilb-with-web-app/main.bicep	🟢 pass
201/cdn-with-storage-account/main.bicep	🟢 pass
201/cloud-shell-vnet/main.bicep	🟢 pass
201/create-and-enable-ddos-protection-plans/main.bicep	🟢 pass
201/cyclecloud/cycleserver-vm.bicep	🟢 pass
201/cyclecloud/main.bicep	🔴 fail
201/cyclecloud/network.bicep	🟢 pass
201/cyclecloud/sub.bicep	🟢 pass
201/decrypt-running-windows-vm-without-aad/main.bicep	🟢 pass
201/event-hub-and-consumer-group/main.bicep	🟢 pass
201/firewall-with-ip-from-prefix/main.bicep	🟢 pass
201/front-door-with-webapplication-firewall/main.bicep	🟢 pass
201/iot-with-storage/main.bicep	🟢 pass
201/key-vault-secret-create/main.bicep	🟢 pass
201/log-analytics-with-solutions-and-diagnostics/main.bicep	🟢 pass
201/policy-definition-with-assignment/main.bicep	🟢 pass
201/portal-dashboard-with-appinsights/main.bicep	🟢 pass
201/private-aks-cluster/aks.bicep	🟢 pass
201/private-aks-cluster/bastion.bicep	🟢 pass
201/private-aks-cluster/jumpbox.bicep	🟢 pass
201/private-aks-cluster/log-analytics.bicep	🟢 pass
201/private-aks-cluster/main.bicep	🟢 pass
201/private-aks-cluster/vnet.bicep	🟢 pass
201/policy-with-initiative-definition-and-assignment/main.bicep	🟢 pass
201/proximity-placement-with-multi-resource-groups/anchored-ppg.bicep	🟢 pass
201/proximity-placement-with-multi-resource-groups/linux-vm-as.bicep	🟢 pass
201/proximity-placement-with-multi-resource-groups/main.bicep	🟢 pass
201/proximity-placement-with-multi-resource-groups/network.bicep	🟢 pass
201/redis-premium-cluster-diagnostics/main.bicep	🟢 pass
201/redis-premium-persistence/main.bicep	🟢 pass
201/redis-premium-persistence/prereqs.bicep	🟢 pass
201/servicebus-create-queue/main.bicep	🟢 pass
201/sql/main.bicep	🟢 pass
201/traffic-manager-webapp/main.bicep	🟢 pass
201/vm-copy-managed-disks/main.bicep	🟢 pass
201/vm-domain-join/main.bicep	🟢 pass
201/vm-new-or-existing-conditions/main.bicep	🟢 pass
201/vm-push-certificate-windows/main.bicep	🟢 pass
201/vm-windows-with-custom-script-extension/main.bicep	🔴 fail
201/vmss-windows-autoscale/main.bicep	🟢 pass
201/existing-vnet-to-vnet-peering/main.bicep	🟢 pass
201/vnet-to-vnet-bgp/main.bicep	🟢 pass
201/vnet-to-vnet-peering/main.bicep	🟢 pass
201/vnet-with-subnet-and-user-defined-route/main.bicep	🟢 pass
201/vwan-shared-services/main.bicep	🟢 pass
201/web-app-loganalytics/main.bicep	🟢 pass
201/web-app-asev2-create/main.bicep	🟢 pass
201/web-app-conditional-log/logging.bicep	🟢 pass
201/web-app-conditional-log/main.bicep	🟢 pass
201/web-app-conditional-log/webapp.bicep	🟢 pass
201/web-app-loganalytics-mod/app-insights.bicep	🟢 pass
201/web-app-loganalytics-mod/app-service-plan.bicep	🟢 pass
201/web-app-loganalytics-mod/app-service.bicep	🟢 pass
201/web-app-loganalytics-mod/log-analytics.bicep	🟢 pass
201/web-app-loganalytics-mod/main.bicep	🟢 pass
201/web-app-sql-database/main.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/avd-LogAnalytics.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/avd-backplane-module.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/avd-fileservices-module.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/avd-fileservices-privateendpoint-module.bicep	🔴 fail
201/avd-backplane-with-network-and-storage-and-monitoring/avd-image-builder-module.bicep	🔴 fail
201/avd-backplane-with-network-and-storage-and-monitoring/avd-monitor-diag.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/avd-network-module.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/avd-sig-module.bicep	🟢 pass
201/avd-backplane-with-network-and-storage-and-monitoring/main.bicep	🔴 fail
201/vm-windows10-with-nvidia-gpu-extension-and-condition/main.bicep	🟢 pass
201/shared-image-gallery-with-image-defintition-and-role-assignment/main.bicep	🟢 pass
201/policy-azmonitor-agent-and-dcr-association/main.bicep	🟢 pass
201/policy-azmonitor-agent-and-dcr-association/policyAssignment.bicep	🟢 pass
201/policy-azmonitor-agent-and-dcr-association/policyDefinition.bicep	🟢 pass
201/wvd-create-hostpool/main.bicep	🔴 fail
201/budget-subscription-with-notifications/main.bicep	🔴 fail
301/expressroute-circuit-vnet-connection/main.bicep	🟢 pass
301/function-app-with-custom-domain-managed-certificate/main.bicep	🔴 fail
301/function-app-with-custom-domain-managed-certificate/sni-enable.bicep	🟢 pass
301/insights-alertrules-application-insights/main.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/azfw.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/azfwpip.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/azfwpolicy.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/main.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vhub.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vhubvpngw.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vhubvpngwcon.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vnet.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vnetsitetosite.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vnetvpngw.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vwan.bicep	🟢 pass
301/modules-vwan-to-vnet-s2s-with-fw/vwanvpnsite.bicep	🟢 pass
301/nested-vms-in-virtual-network/main.bicep	🟢 pass
301/nested-vms-in-virtual-network/nic.bicep	🟢 pass
301/nested-vms-in-virtual-network/udr.bicep	🟢 pass
301/publish-api-to-apim-opendocs/main.bicep	🟢 pass
301/servicebus-namespace-vnet/main.bicep	🟢 pass
301/web-app-managed-identity-sql-db/main.bicep	🟢 pass
301/deployifnotexists-policy-with-initiative-and-assignment/actionGroup.bicep	🟢 pass
301/deployifnotexists-policy-with-initiative-and-assignment/main.bicep	🟢 pass
301/deployifnotexists-policy-with-initiative-and-assignment/policyAssignment.bicep	🟢 pass
301/deployifnotexists-policy-with-initiative-and-assignment/policyDefinition.bicep	🟢 pass
301/deployment-script-dev-environment/containergroups.bicep	🟢 pass
301/deployment-script-dev-environment/main.bicep	🔴 fail
301/deployment-script-dev-environment/storage.bicep	🟢 pass
301/sql-database-with-management/main.bicep	🟢 pass
301/log-analytics-with-datasources-solutions/main.bicep	🔴 fail
301/automation-account-import-runbooks-and-modules/main.bicep	🟢 pass
301/management-groups-nested-with-subscriptions/main.bicep	🔴 fail