HA configuration of pacemaker for SAP Netweaver software
| variable | info | required? |
|---|---|---|
| sap_netweaver_ha_pacemaker_hacluster_manage_shared_storage | Attempt to manage shared (eg. nfs) storage? | no, default is yes |
| sap_netweaver_ha_pacemaker_hacluster_node1_ip | IP address of first node in cluster | yes |
| sap_netweaver_ha_pacemaker_hacluster_node1_fqdn | FWDN of first node in cluster | yes |
| sap_netweaver_ha_pacemaker_hacluster_node2_ip | IP address of second node in cluster | yes |
| sap_netweaver_ha_pacemaker_hacluster_node2_fqdn | FWDN of second node in cluster | yes |
| sap_netweaver_ha_pacemaker_ensa_ver | ENSA/ERS version | no, default 2 |
| sap_netweaver_ha_pacemaker_hacluster_manage_azure_lb | Default: no. Deal with Azure load balancer? | no |
| sap_netweaver_ha_pacemaker_sid | SID of this instance | yes |
| sap_netweaver_ha_pacemaker_profile_path | Full path of directory holding profiles | no, is generated sanely |
| sap_netweaver_ha_pacemaker_alias_ascs | ASCS host alias | yes |
| sap_netweaver_ha_pacemaker_instance_number_ascs | ASCS instance number | yes |
| sap_netweaver_ha_pacemaker_instance_name_ascs | ASCS Instance Name (profile file name) | no, is generated sanely |
| sap_netweaver_ha_pacemaker_profile_file_ascs | Full path and name of ASCS profile | no, is generated sanely |
| sap_netweaver_ha_pacemaker_profile_path_ascs | Full path to directory holding ASCS profile | no, is generated sanely |
| sap_netweaver_ha_pacemaker_vip_ascs | Virtual (cluster managed) IP address for ASCS | yes |
| sap_netweaver_ha_pacemaker_alias_ers | ERS host alias | yes |
| sap_netweaver_ha_pacemaker_instance_number_ers | ERS instance number | yes |
| sap_netweaver_ha_pacemaker_instance_name_ers | ASCS Instance Name (profile file name) | no, is generated sanely |
| sap_netweaver_ha_pacemaker_profile_file_ers | Full path and file name of ASCS profile | no, is generated sanely |
| sap_netweaver_ha_pacemaker_profile_path_ers | Full path to directory holding ASCS profile | no, is generated sanely |
| sap_netweaver_ha_pacemaker_vip_ers | Virtual (cluster managed) IP address for ASCS | yes |
| sap_netweaver_ha_pacemaker_e4s_repos_ppc64le | List of required extended support repos for ppc64le arch | no |
| sap_netweaver_ha_pacemaker_e4s_repos_x86_64 | List of required extended support repos for x86_64 arch | no |
| sap_netweaver_ha_pacemaker_standard_repos_ppc64le | List of required standard support repos for ppc64le arch | no |
| sap_netweaver_ha_pacemaker_standard_repos_x86_64 | List of required standard support repos for x86_64 arch | no |
| sap_netweaver_ha_pacemaker_fsdevice_ascs | ascs profile filesystem resource | yes |
| sap_netweaver_ha_pacemaker_fsdevice_ers | ers profile filesystem resource | yes |
| sap_netweaver_ha_pacemaker_fsdevice_sapmnt | sapmnt filesystem resource | yes |
| sap_netweaver_ha_pacemaker_fsdevice_sys | sys filesystem resource | yes |
| sap_netweaver_ha_pacemaker_fsdevice_trans | trans filesystem resource | yes |
| sap_netweaver_ha_pacemaker_mntdir_ascs | ASCS filesystem mount point directory | yes |
| sap_netweaver_ha_pacemaker_mntdir_ers | ERS filesystem mount point directory | yes |
| sap_netweaver_ha_pacemaker_mntdir_sapmnt | sapmnt filesystem mount point directory | yes |
| sap_netweaver_ha_pacemaker_mntdir_sys | sys filesystem mount point directory | yes |
| sap_netweaver_ha_pacemaker_mntdir_trans | trans filesystem mount point directory | yes |
| sap_netweaver_ha_pacemaker_fstype | Type of filesystem resource of managed filesystems see: pcs fstype=xxx | yes |
| sap_netweaver_ha_pacemaker_fstype_ | Type of filesystem resource for (inherited value from above) | no |
| sap_netweaver_ha_pacemaker_fsr_name_ | PCS resource name for managed filesystem of | no |
| sap_netweaver_ha_pacemaker_auto_recover_ascs | Sets SAPInstance AUTOMATIC_RECOVER=true if ansible truthy (otherwise skips setting) | no |
| sap_netweaver_ha_pacemaker_auto_recover_ers | Sets SAPInstance AUTOMATIC_RECOVER=true if ansible truthy (otherwise skips setting) | no |
| sap_netweaver_ha_pacemaker_ocf_check | Default for OCF_CHECK_LEVEL= value for mount points | no |
| sap_netweaver_ha_pacemaker_ocf_check_ | OCF_CHECK_LEVEL= value for mount points (inherited value from above) | no |
sap_netweaver_ha_pacemaker_profile_path is the root directory holding the "profiles" of ASCS and ERS. It is generated based on convention and the provided SID. sap_netweaver_ha_pacemaker_profile_path_ascs and sap_netweaver_ha_pacemaker_profile_path_ers are set to it (or overridden), and the respective profile_file values are generated based on the particular _alias_ names and IDs (or overridden).
For each of thing={'ascs', 'ers', 'sapmnt', 'sys', 'trans'}, we create a PCS filesystem resource named sap_netweaver_ha_pacemaker_fsr_name_<thing>, which is set sanely, but can be overridden. It mounts sap_netweaver_ha_pacemaker_fsdevice_<thing> at sap_netweaver_ha_pacemaker_mntdir_<type> as a filesystem type of sap_netweaver_ha_pacemaker_fstype_<thing>. _mntdir is set by convention (but can be overridden), the device need to be specified. fstype can be specified generally, or per fstype_<thing>.
The following variables are common to all fencing devices (except those on hyperscalers)
| variable | info | required? |
|---|---|---|
| sap_netweaver_ha_pacemaker_fencing_device.name | Name of the fencing device | yes |
| sap_netweaver_ha_pacemaker_fencing_device.type | Fencing device type | yes * |
| sap_netweaver_ha_pacemaker_fencing_device.ip | IP address of the fencing device | yes |
| sap_netweaver_ha_pacemaker_fencing_device.user | Username to connect to the fencing device | yes |
| sap_netweaver_ha_pacemaker_fencing_device.pwd | Password to connect to the fencing device | yes |
| sap_netweaver_ha_pacemaker_fencing_device.pcmk_host_list | List of nodes controlled by the fencing device | yes * |
| sap_netweaver_ha_pacemaker_fencing_device.password_file | Full path/filename to 'password script' to use for fencing device configuration | no |
| sap_netweaver_ha_pacemaker_fencing_device.pcmk_host_map | Mapping of the hostnames/ip of the nodes | yes* |
| sap_netweaver_ha_pacemaker_fencing_device.custom_options | Additional options to pass to fence device creation, e.g. "ssl=1 ssl_insecure=1 power_wait=30" | no |
* Must provide either a pcmk_host_list or a pcmk_host_map, per https://access.redhat.com/solutions/2619961 for a discussion on host_list vs host_map
This is a list of the most common fencing devices:
- fence_vmware_soap - VMWare
- fence_vmware_rest - VMWare
- fence_ipmilan - IPMI
- fence_ilo4_ssh - HP ILO
- fence_rhevm - RHV
- fence_azure_arm - Azure
- Fencing should perhaps be extracted to own role to share with redhat_sap.sap-hana-ha-pacemaker
- Verify drivers other than fence_vmware_rest support passwd_script option
- Support >2 nodes
- Support >2 links
- This remains mostly untested against a range of systems.
- Var docs
- FS paths should match samples from docs
- Is this the right place for Azure LB? (commented out as wasn't going to work, anyway)
- If using clustering, the sap_s4netweaver_deployment is likely going to need /etc/hosts setup, so this is a dupe
- /etc/hosts perhaps should have ansible tags in it, either way, so the several roles can not clobber each other
- Should instance aliases be in /etc/hosts?
- Rename 'ASCS' to 'APP'(?) everywhere if this "works" with more app stacks than ASCS, like the java thing
- Some debug mode:
- If possible, make
backup: yeson file changes conditional
- If possible, make