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Change default spaging for subnet (#315)
Change how subnet is calculated from vnet. Move all locals about network and IP to a dedicated file. Improve the terraform code documentation.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| # This file is used to calculate and store in some locals (local variables) | ||
| # the IP addresses of all the machines. | ||
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| locals { | ||
| ################################################### | ||
| ################################################### | ||
| # R A N G E s | ||
| ################################################### | ||
| ################################################### | ||
| # If vnet_name is not defined, user is supposed also to provide vnet_address_range. | ||
| # Both the name and the range will be then used to create the vnet. | ||
| # | ||
| # User has the freedom to use an existing vnet. When doing so user has the freedom to both | ||
| # provide or not provide the associated range. | ||
| # If vnet_name is defined, and the vnet_address_range is empty, | ||
| # Terraform will try to get the ip range from the real vnet using the data source. | ||
| # If vnet_address_range is provided by the user, Terraform will use it | ||
| vnet_address_range = ( | ||
| var.vnet_name == "" ? | ||
| var.vnet_address_range : | ||
| var.vnet_address_range == "" ? data.azurerm_virtual_network.mynet.0.address_space.0 : var.vnet_address_range | ||
| ) | ||
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| subnet_address_range = ( | ||
| var.subnet_name == "" ? | ||
| (var.subnet_address_range == "" ? cidrsubnet(local.vnet_address_range, 3, 1) : var.subnet_address_range) : | ||
| (var.subnet_address_range == "" ? data.azurerm_subnet.mysubnet.0.address_prefix : var.subnet_address_range) | ||
| ) | ||
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| subnet_netapp_address_range = ( | ||
| var.subnet_netapp_name == "" ? | ||
| (var.subnet_netapp_address_range == "" ? cidrsubnet(local.vnet_address_range, 3, 3) : var.subnet_netapp_address_range) : | ||
| (var.subnet_netapp_address_range == "" ? data.azurerm_subnet.mysubnet-netapp.0.address_prefix : var.subnet_netapp_address_range) | ||
| ) | ||
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| ################################################### | ||
| ################################################### | ||
| # I P s | ||
| ################################################### | ||
| ################################################### | ||
| # This locals entry is used to store the IP addresses of all the machines. | ||
| # Autogenerated addresses example based in 10.74.0.0/24 | ||
| # Monitoring server: 10.74.0.4 | ||
| # iscsi: 10.74.0.5 to 10.74.0.5 | ||
| # Hana ips: 10.74.0.10, 10.74.0.11 | ||
| # Majority Maker ip: 10.74.0.9 | ||
| # Hana cluster vip: 10.74.0.12 | ||
| # Hana cluster vip secondary: 10.74.0.13 | ||
| # DRBD ips: 10.74.0.6, 10.74.0.7 | ||
| # DRBD cluster vip: 10.74.0.8 | ||
| # Netweaver ips: 10.74.0.60, 10.74.0.61, 10.74.0.62, 10.74.0.63 | ||
| # Netweaver virtual ips: 10.74.0.64, 10.74.0.65, 10.74.0.66, 10.74.0.67 | ||
| # If the addresses are provided by the user will always have preference | ||
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| ################################################### | ||
| # INFRA | ||
| monitor_ip_start = 4 | ||
| monitoring_ip = ( | ||
| var.monitoring_srv_ip != "" ? | ||
| var.monitoring_srv_ip : | ||
| cidrhost(local.subnet_address_range, local.monitor_ip_start) | ||
| ) | ||
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||
| iscsi_ip_start = local.monitor_ip_start + 1 | ||
| iscsi_ips = ( | ||
| length(var.iscsi_ips) != 0 ? | ||
| var.iscsi_ips : | ||
| [ | ||
| for ip_index in range(local.iscsi_ip_start, var.iscsi_count + local.iscsi_ip_start) : | ||
| cidrhost(local.subnet_address_range, ip_index) | ||
| ] | ||
| ) | ||
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| ################################################### | ||
| # HANA | ||
| hana_ip_start = 10 | ||
| hana_ips = ( | ||
| length(var.hana_ips) != 0 ? | ||
| var.hana_ips : | ||
| [ | ||
| for ip_index in range(var.hana_count) : | ||
| cidrhost(local.subnet_address_range, ip_index + local.hana_ip_start) | ||
| ] | ||
| ) | ||
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| hana_majority_maker_ip = ( | ||
| var.hana_majority_maker_ip != "" ? | ||
| var.hana_majority_maker_ip : | ||
| cidrhost(local.subnet_address_range, local.hana_ip_start - 1) | ||
| ) | ||
| hana_cluster_vip = ( | ||
| var.hana_cluster_vip != "" ? | ||
| var.hana_cluster_vip : | ||
| cidrhost(local.subnet_address_range, var.hana_count + local.hana_ip_start) | ||
| ) | ||
| hana_cluster_vip_secondary = ( | ||
| var.hana_cluster_vip_secondary != "" ? | ||
| var.hana_cluster_vip_secondary : | ||
| cidrhost(local.subnet_address_range, var.hana_count + local.hana_ip_start + 1) | ||
| ) | ||
| # Has to be in the same subnet of HANA. | ||
| # Not used to create any resource in Azure, but only passed to Ansible | ||
| # to create cluster resource ocf:heartbeat:IPaddr2 | ||
| cluster_ip = cidrhost(local.subnet_address_range, var.hana_count + local.hana_ip_start + 2) | ||
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| ################################################### | ||
| # DRBD | ||
| drbd_ip_start = 6 | ||
| drbd_ips = ( | ||
| length(var.drbd_ips) != 0 ? | ||
| var.drbd_ips : | ||
| [ | ||
| for ip_index in range(local.drbd_ip_start, local.drbd_ip_start + 2) : | ||
| cidrhost(local.subnet_address_range, ip_index) | ||
| ] | ||
| ) | ||
| drbd_cluster_vip = ( | ||
| var.drbd_cluster_vip != "" ? | ||
| var.drbd_cluster_vip : | ||
| cidrhost(local.subnet_address_range, local.drbd_ip_start + 2) | ||
| ) | ||
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| ################################################### | ||
| # NETWEAVER | ||
| # We need at least 2 virtual ips, if ASCS and PAS are in the same machine | ||
| netweaver_virtual_ips_count = var.netweaver_ha_enabled ? max(local.netweaver_count, 3) : max(local.netweaver_count, 2) | ||
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| netweaver_ip_start = 60 | ||
| netweaver_ips = ( | ||
| length(var.netweaver_ips) != 0 ? | ||
| var.netweaver_ips : | ||
| [ | ||
| for ip_index in range(local.netweaver_ip_start, local.netweaver_ip_start + local.netweaver_count) : | ||
| cidrhost(local.subnet_address_range, ip_index) | ||
| ] | ||
| ) | ||
| netweaver_virtual_ips = ( | ||
| length(var.netweaver_virtual_ips) != 0 ? | ||
| var.netweaver_virtual_ips : | ||
| [ | ||
| for ip_index in range(local.netweaver_ip_start + local.netweaver_virtual_ips_count, local.netweaver_ip_start + (local.netweaver_virtual_ips_count * 2)) : | ||
| cidrhost(local.subnet_address_range, ip_index) | ||
| ] | ||
| ) | ||
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| } |