infra.ci.jenkins.io.tf

/** One resource group for the agents **/
resource "azurerm_resource_group" "infra_ci_jenkins_io_agents" {
  name     = "infra-agents"
  location = var.location
}

/** Agent Resources **/
resource "azurerm_storage_account" "infra_ci_jenkins_io_agents" {
  name                     = "infraciagents"
  resource_group_name      = azurerm_resource_group.infra_ci_jenkins_io_agents.name
  location                 = azurerm_resource_group.infra_ci_jenkins_io_agents.location
  account_tier             = "Standard"
  account_replication_type = "LRS"
  min_tls_version          = "TLS1_2" # default value, needed for tfsec
  tags                     = local.default_tags
}

# Azure AD resources to allow controller to spawn agents in Azure
resource "azuread_application" "infra_ci_jenkins_io" {
  display_name = "infra.ci.jenkins.io"
  owners = [
    data.azuread_service_principal.terraform_production.object_id,
  ]
  tags = [for key, value in local.default_tags : "${key}:${value}"]
  required_resource_access {
    resource_app_id = "00000003-0000-0000-c000-000000000000" # Microsoft Graph

    resource_access {
      id   = "e1fe6dd8-ba31-4d61-89e7-88639da4683d" # User.Read
      type = "Scope"
    }
  }
  web {
    homepage_url = "https://github.com/jenkins-infra/azure"
  }
}
resource "azuread_service_principal" "infra_ci_jenkins_io" {
  client_id                    = azuread_application.infra_ci_jenkins_io.client_id
  app_role_assignment_required = false
  owners = [
    data.azuread_service_principal.terraform_production.object_id,
  ]
}
resource "azuread_application_password" "infra_ci_jenkins_io" {
  application_id = azuread_application.infra_ci_jenkins_io.id
  display_name   = "infra.ci.jenkins.io-tf-managed"
  end_date       = "2024-12-18T00:00:00Z"
}
# Allow Service Principal to manage AzureRM resources inside the agents resource groups
resource "azurerm_role_assignment" "infra_ci_jenkins_io_allow_azurerm" {
  scope                = azurerm_resource_group.infra_ci_jenkins_io_agents.id
  role_definition_name = "Contributor"
  principal_id         = azuread_service_principal.infra_ci_jenkins_io.object_id
}
resource "azurerm_role_assignment" "infra_ci_jenkins_io_allow_packer" {
  scope                = azurerm_resource_group.packer_images["prod"].id
  role_definition_name = "Reader"
  principal_id         = azuread_service_principal.infra_ci_jenkins_io.object_id
}
resource "azurerm_role_assignment" "infra_ci_jenkins_io_privatek8s_subnet_role" {
  scope                = data.azurerm_subnet.privatek8s_tier.id
  role_definition_name = "Virtual Machine Contributor"
  principal_id         = azuread_service_principal.infra_ci_jenkins_io.object_id
}
resource "azurerm_role_assignment" "infra_ci_jenkins_io_privatek8s_subnet_private_vnet_reader" {
  scope              = data.azurerm_virtual_network.private.id
  role_definition_id = azurerm_role_definition.private_vnet_reader.role_definition_resource_id
  principal_id       = azuread_service_principal.infra_ci_jenkins_io.object_id
}

# Required to allow azcopy sync of contributors.jenkins.io File Share
module "infraci_contributorsjenkinsio_fileshare_serviceprincipal_writer" {
  source = "./.shared-tools/terraform/modules/azure-jenkinsinfra-fileshare-serviceprincipal-writer"

  service_fqdn                   = "infra-ci-jenkins-io-fileshare_serviceprincipal_writer"
  active_directory_owners        = [data.azuread_service_principal.terraform_production.object_id]
  active_directory_url           = "https://github.com/jenkins-infra/azure"
  service_principal_end_date     = local.end_dates.infra_ci_jenkins_io.infraci_contributorsjenkinsio_fileshare_serviceprincipal_writer.end_date
  file_share_resource_manager_id = azurerm_storage_share.contributors_jenkins_io.resource_manager_id
  storage_account_id             = azurerm_storage_account.contributors_jenkins_io.id
  default_tags                   = local.default_tags
}
output "infraci_contributorsjenkinsio_fileshare_serviceprincipal_writer_application_client_id" {
  value = module.infraci_contributorsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_id
}
output "infraci_contributorsjenkinsio_fileshare_serviceprincipal_writer_application_client_password" {
  sensitive = true
  value     = module.infraci_contributorsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_password
}

# Required to allow azcopy sync of docs.jenkins.io File Share
module "infraci_docsjenkinsio_fileshare_serviceprincipal_writer" {
  source = "./.shared-tools/terraform/modules/azure-jenkinsinfra-fileshare-serviceprincipal-writer"

  service_fqdn                   = "infra-ci-jenkins-io-fileshare_serviceprincipal_writer"
  active_directory_owners        = [data.azuread_service_principal.terraform_production.object_id]
  active_directory_url           = "https://github.com/jenkins-infra/azure"
  service_principal_end_date     = local.end_dates.infra_ci_jenkins_io.infraci_docsjenkinsio_fileshare_serviceprincipal_writer.end_date
  file_share_resource_manager_id = azurerm_storage_share.docs_jenkins_io.resource_manager_id
  storage_account_id             = azurerm_storage_account.docs_jenkins_io.id
  default_tags                   = local.default_tags
}
output "infraci_docsjenkinsio_fileshare_serviceprincipal_writer_application_client_id" {
  value = module.infraci_docsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_id
}
output "infraci_docsjenkinsio_fileshare_serviceprincipal_writer_application_client_password" {
  sensitive = true
  value     = module.infraci_docsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_password
}

# Required to allow azcopy sync of stats.jenkins.io File Share
module "infraci_statsjenkinsio_fileshare_serviceprincipal_writer" {
  source = "./.shared-tools/terraform/modules/azure-jenkinsinfra-fileshare-serviceprincipal-writer"

  service_fqdn                   = "infra-ci-jenkins-io-fileshare_serviceprincipal_writer"
  active_directory_owners        = [data.azuread_service_principal.terraform_production.object_id]
  active_directory_url           = "https://github.com/jenkins-infra/azure"
  service_principal_end_date     = local.end_dates.infra_ci_jenkins_io.infraci_statsjenkinsio_fileshare_serviceprincipal_writer.end_date
  file_share_resource_manager_id = azurerm_storage_share.stats_jenkins_io.resource_manager_id
  storage_account_id             = azurerm_storage_account.stats_jenkins_io.id
  default_tags                   = local.default_tags
}
output "infraci_statsjenkinsio_fileshare_serviceprincipal_writer_application_client_id" {
  value = module.infraci_statsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_id
}
output "infraci_statsjenkinsio_fileshare_serviceprincipal_writer_application_client_password" {
  sensitive = true
  value     = module.infraci_statsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_password
}

locals {
  infra_ci_jenkins_io_fqdn                        = "infra.ci.jenkins.io"
  infra_ci_jenkins_io_service_short_name          = trimprefix(trimprefix(local.infra_ci_jenkins_io_fqdn, "jenkins.io"), ".")
  infra_ci_jenkins_io_service_short_stripped_name = replace(local.infra_ci_jenkins_io_service_short_name, ".", "-")
}
####################################################################################
## Sponsorship subscription specific resources for controller
####################################################################################
# This resource group hosts resources used for agents only managed by terraform or administrators
# such as NSG for agents subnet (we don't want azure-vm-agents jenkins plugin to access this RG)
resource "azurerm_resource_group" "infra_ci_jenkins_io_controller_jenkins_sponsorship" {
  provider = azurerm.jenkins-sponsorship
  name     = "infra-ci-jenkins-io-controller"
  location = var.location
  tags     = local.default_tags
}
# Required to allow controller to check for subnets inside the sponsorship network
resource "azurerm_role_definition" "infra_ci_jenkins_io_controller_vnet_sponsorship_reader" {
  provider = azurerm.jenkins-sponsorship
  name     = "Read-infra-ci-jenkins-io-sponsorship-VNET"
  scope    = data.azurerm_virtual_network.infra_ci_jenkins_io_sponsorship.id

  permissions {
    actions = ["Microsoft.Network/virtualNetworks/read"]
  }
}
resource "azurerm_role_assignment" "infra_controller_vnet_reader" {
  provider           = azurerm.jenkins-sponsorship
  scope              = data.azurerm_virtual_network.infra_ci_jenkins_io_sponsorship.id
  role_definition_id = azurerm_role_definition.infra_ci_jenkins_io_controller_vnet_sponsorship_reader.role_definition_resource_id
  principal_id       = azuread_service_principal.infra_ci_jenkins_io.object_id
}
module "infra_ci_jenkins_io_azurevm_agents_jenkins_sponsorship" {
  providers = {
    azurerm = azurerm.jenkins-sponsorship
  }
  source = "./.shared-tools/terraform/modules/azure-jenkinsinfra-azurevm-agents"

  service_fqdn                     = local.infra_ci_jenkins_io_fqdn
  service_short_stripped_name      = local.infra_ci_jenkins_io_service_short_stripped_name
  ephemeral_agents_network_rg_name = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.resource_group_name
  ephemeral_agents_network_name    = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.virtual_network_name
  ephemeral_agents_subnet_name     = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.name
  controller_rg_name               = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins_sponsorship.name
  controller_ips                   = data.azurerm_subnet.privatek8s_infra_ci_controller_tier.address_prefixes # Pod IPs: controller IP may change in the pods IP subnet
  controller_service_principal_id  = azuread_service_principal.infra_ci_jenkins_io.object_id
  default_tags                     = local.default_tags
  storage_account_name             = "infraciagentssub" # Max 24 chars

  jenkins_infra_ips = {
    privatevpn_subnet = data.azurerm_subnet.private_vnet_data_tier.address_prefixes
  }
}

# Allow infra.ci VM agents to reach packer VMs with SSH
resource "azurerm_network_security_rule" "allow_outbound_ssh_from_infraci_agents_to_packer_vms" {
  provider                    = azurerm.jenkins-sponsorship
  name                        = "allow-outbound-ssh-from-infraci-agents-to-packer-vms"
  priority                    = 4080
  direction                   = "Outbound"
  access                      = "Allow"
  protocol                    = "Tcp"
  source_port_range           = "*"
  destination_port_range      = "22"
  source_address_prefix       = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.address_prefix
  destination_address_prefix  = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_packer_builds.address_prefix
  resource_group_name         = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins_sponsorship.name
  network_security_group_name = module.infra_ci_jenkins_io_azurevm_agents_jenkins_sponsorship.ephemeral_agents_nsg_name
}
# Allow infra.ci VM agents to reach packer VMs with WinRM (HTTP without TLS)
resource "azurerm_network_security_rule" "allow_outbound_winrm_http_from_infraci_agents_to_packer_vms" {
  provider                    = azurerm.jenkins-sponsorship
  name                        = "allow-outbound-winrm-http-from-infraci-agents-to-packer-vms"
  priority                    = 4081
  direction                   = "Outbound"
  access                      = "Allow"
  protocol                    = "Tcp"
  source_port_range           = "*"
  destination_port_range      = "5985"
  source_address_prefix       = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.address_prefix
  destination_address_prefix  = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_packer_builds.address_prefix
  resource_group_name         = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins_sponsorship.name
  network_security_group_name = module.infra_ci_jenkins_io_azurevm_agents_jenkins_sponsorship.ephemeral_agents_nsg_name
}
# Allow infra.ci VM agents to reach packer VMs with WinRM (HTTPS)
resource "azurerm_network_security_rule" "allow_outbound_winrm_https_from_infraci_agents_to_packer_vms" {
  provider                    = azurerm.jenkins-sponsorship
  name                        = "allow-outbound-winrm-https-from-infraci-agents-to-packer-vms"
  priority                    = 4082
  direction                   = "Outbound"
  access                      = "Allow"
  protocol                    = "Tcp"
  source_port_range           = "*"
  destination_port_range      = "5986"
  source_address_prefix       = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.address_prefix
  destination_address_prefix  = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_packer_builds.address_prefix
  resource_group_name         = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins_sponsorship.name
  network_security_group_name = module.infra_ci_jenkins_io_azurevm_agents_jenkins_sponsorship.ephemeral_agents_nsg_name
}

# Required to allow azcopy sync of plugins.jenkins.io File Share
module "infraci_pluginsjenkinsio_fileshare_serviceprincipal_writer" {
  source = "./.shared-tools/terraform/modules/azure-jenkinsinfra-fileshare-serviceprincipal-writer"

  service_fqdn                   = "infraci-pluginsjenkinsio-fileshare_serviceprincipal_writer"
  active_directory_owners        = [data.azuread_service_principal.terraform_production.object_id]
  active_directory_url           = "https://github.com/jenkins-infra/azure"
  service_principal_end_date     = local.end_dates.infra_ci_jenkins_io.infraci_pluginsjenkinsio_fileshare_serviceprincipal_writer.end_date
  file_share_resource_manager_id = azurerm_storage_share.plugins_jenkins_io.resource_manager_id
  storage_account_id             = azurerm_storage_account.plugins_jenkins_io.id
  default_tags                   = local.default_tags
}
output "infraci_pluginsjenkinsio_fileshare_serviceprincipal_writer_application_client_id" {
  value = module.infraci_pluginsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_id
}
output "infraci_pluginsjenkinsio_fileshare_serviceprincipal_writer_application_client_password" {
  sensitive = true
  value     = module.infraci_pluginsjenkinsio_fileshare_serviceprincipal_writer.fileshare_serviceprincipal_writer_application_client_password
}

# This resource group hosts resources used by the controller on the main subscription
resource "azurerm_resource_group" "infra_ci_jenkins_io_controller_jenkins" {
  name     = "infra-ci-jenkins-io-controller"
  location = var.location
  tags     = local.default_tags
}

resource "azurerm_managed_disk" "jenkins_infra_data" {
  name                 = "jenkins-infra-data"
  location             = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins.location
  resource_group_name  = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins.name
  storage_account_type = "StandardSSD_ZRS"
  create_option        = "Empty"
  disk_size_gb         = 64
  tags                 = local.default_tags
}

resource "kubernetes_persistent_volume" "jenkins_infra_data" {
  provider = kubernetes.privatek8s
  metadata {
    name = "jenkins-infra-pv"
  }
  spec {
    capacity = {
      storage = "${azurerm_managed_disk.jenkins_infra_data.disk_size_gb}Gi"
    }
    access_modes                     = ["ReadWriteOnce"]
    persistent_volume_reclaim_policy = "Retain"
    storage_class_name               = kubernetes_storage_class.statically_provisionned_privatek8s.id
    persistent_volume_source {
      csi {
        driver        = "disk.csi.azure.com"
        volume_handle = azurerm_managed_disk.jenkins_infra_data.id
      }
    }
  }
}

resource "kubernetes_persistent_volume_claim" "jenkins_infra_data" {
  provider = kubernetes.privatek8s
  metadata {
    name      = "jenkins-infra-data"
    namespace = "jenkins-infra"
  }
  spec {
    access_modes       = kubernetes_persistent_volume.jenkins_infra_data.spec[0].access_modes
    volume_name        = kubernetes_persistent_volume.jenkins_infra_data.metadata.0.name
    storage_class_name = kubernetes_storage_class.statically_provisionned_privatek8s.id
    resources {
      requests = {
        storage = "${azurerm_managed_disk.jenkins_infra_data.disk_size_gb}Gi"
      }
    }
  }
}

# Required to allow AKS CSI driver to access the Azure disk
resource "azurerm_role_definition" "infra_ci_jenkins_io_controller_disk_reader" {
  name  = "ReadinfraCIDisk"
  scope = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins.id

  permissions {
    actions = ["Microsoft.Compute/disks/read"]
  }
}
resource "azurerm_role_assignment" "infra_ci_jenkins_io_allow_azurerm_privatek8s" {
  scope              = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins.id
  role_definition_id = azurerm_role_definition.infra_ci_jenkins_io_controller_disk_reader.role_definition_resource_id
  principal_id       = azurerm_kubernetes_cluster.privatek8s.identity[0].principal_id
}

## Allow access to/from ACR endpoint
resource "azurerm_network_security_rule" "allow_out_https_from_infra_ephemeral_agents_to_acr" {
  provider                = azurerm.jenkins-sponsorship
  name                    = "allow-out-https-from-ephemeral-agents-to-acr"
  priority                = 4050
  direction               = "Outbound"
  access                  = "Allow"
  protocol                = "Tcp"
  source_port_range       = "*"
  destination_port_range  = "443"
  source_address_prefixes = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.address_prefixes
  destination_address_prefixes = distinct(
    flatten(
      [for rs in azurerm_private_endpoint.dockerhub_mirror["infracijenkinsio"].private_dns_zone_configs.*.record_sets : rs.*.ip_addresses]
    )
  )
  resource_group_name         = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins_sponsorship.name
  network_security_group_name = module.infra_ci_jenkins_io_azurevm_agents_jenkins_sponsorship.ephemeral_agents_nsg_name
}
resource "azurerm_network_security_rule" "allow_in_https_from_infra_ephemeral_agents_to_acr" {
  provider                = azurerm.jenkins-sponsorship
  name                    = "allow-in-https-from-ephemeral-agents-to-acr"
  priority                = 4050
  direction               = "Inbound"
  access                  = "Allow"
  protocol                = "Tcp"
  source_port_range       = "*"
  destination_port_range  = "443"
  source_address_prefixes = data.azurerm_subnet.infra_ci_jenkins_io_sponsorship_ephemeral_agents.address_prefixes
  destination_address_prefixes = distinct(
    flatten(
      [for rs in azurerm_private_endpoint.dockerhub_mirror["infracijenkinsio"].private_dns_zone_configs.*.record_sets : rs.*.ip_addresses]
    )
  )
  resource_group_name         = azurerm_resource_group.infra_ci_jenkins_io_controller_jenkins_sponsorship.name
  network_security_group_name = module.infra_ci_jenkins_io_azurevm_agents_jenkins_sponsorship.ephemeral_agents_nsg_name
}


# Azure SP for updatecli with minimum rights
resource "azurerm_resource_group" "updatecli_infra_ci_jenkins_io" {
  name     = "updatecli-infra-ci-jenkins-io"
  location = var.location
}
resource "azuread_application" "updatecli_infra_ci_jenkins_io" {
  display_name = "updatecli_infra.ci.jenkins.io"
  owners = [
    # Commenting out to migrate to new AzureAD provider
    # data.azuread_service_principal.terraform_production.id,
    "b847a030-25e1-4791-ad04-9e8484d87bce",
  ]
  tags = [for key, value in local.default_tags : "${key}:${value}"]
  required_resource_access {
    resource_app_id = "00000003-0000-0000-c000-000000000000" # Microsoft Graph

    resource_access {
      id   = "e1fe6dd8-ba31-4d61-89e7-88639da4683d" # User.Read
      type = "Scope"
    }
  }
  web {
    homepage_url = "https://infra.ci.jenkins.io/job/updatecli/"
  }
}
resource "azuread_service_principal" "updatecli_infra_ci_jenkins_io" {
  client_id                    = azuread_application.updatecli_infra_ci_jenkins_io.client_id
  app_role_assignment_required = false
  owners = [
    # Commenting out to migrate to new AzureAD provider
    # data.azuread_service_principal.terraform_production.id,
    "b847a030-25e1-4791-ad04-9e8484d87bce",
  ]
}
resource "azuread_application_password" "updatecli_infra_ci_jenkins_io" {
  application_id = azuread_application.updatecli_infra_ci_jenkins_io.id
  display_name   = "updatecli_infra.ci.jenkins.io-tf-managed"
  end_date       = "2025-01-18T00:00:00Z"
}

resource "azurerm_role_definition" "vm_images_reader" {
  name  = "ReadVMImages"
  scope = azurerm_resource_group.updatecli_infra_ci_jenkins_io.id

  permissions {
    actions = ["Microsoft.Compute/images/read"]
  }
}

resource "azurerm_role_assignment" "updatecli_infra_ci_jenkins_io_allow_images_list" {
  scope              = azurerm_resource_group.updatecli_infra_ci_jenkins_io.id
  role_definition_id = azurerm_role_definition.vm_images_reader.role_definition_resource_id
  principal_id       = azuread_service_principal.updatecli_infra_ci_jenkins_io.object_id
}