User procedure

Start user procedure:

1. Have an Ubuntu 22 VM ready in your tenancy or create a new temporary Ubuntu 22 VM from Morpheus 
   
   1. plan: eo1.medium
   2. networks: private
   3. security group: ssh
2. Run the workflow called 
3. Check the Operating System of your LDAP from Morpheus, Provisioning → Instances → select LDAP machine ;
   1. If your LDAP is rocky 8 based → jump to step 10. 
      
   2. If your LDAP is centos7 based → continue to step 4.
4. Create LDAP replica instance type to move from centos7 to rocky 8 (see MigratefromCentos7toRocky8);
5. Switch IP interfaces between LDAPs using 'switch interfaces of two VMs' workflow in Morpheus (see SwitchInterfacesoftwoVMs);
6. Update Morpheus (see UpdateMorpheus );
7. Check everything is working fine (see Tests);
8. Create LDAP replica instance type to move from rocky 8 to rocky 9 (see MigratefromRocky8toRocky9)
9. Switch IP interfaces between LDAPs using 'switch interfaces of two VMs' workflow in Morpheus (see SwitchInterfacesoftwoVMs);
10. Update Morpheus (see UpdateMorpheus );
11. Check everything is working fine (see Tests);
12. Delete old LDAP machine/s to free resources (see Delete a VM from Morpheus).

Tasks

Edit LDAP security group

1. ssh to the VM with Openstack Client and run the following commands (see EWC - OpenStack Command-Line client for more details):
   1. List ldap security group rule 

      openstack security group rule list ldap

   2. add port 636 TCP.749 TCP,464 UDP to ldap security group if they are missing

      openstack security group rule create ldap --protocol tcp --ingress --dst-port 636 --remote-ip 0.0.0.0/0 --ethertype IPv4
      openstack security group rule create ldap --protocol tcp --ingress --dst-port 749 --remote-ip 0.0.0.0/0 --ethertype IPv4
      openstack security group rule create ldap --protocol udp --ingress --dst-port 464 --remote-ip 0.0.0.0/0 --ethertype IPv4

Migrate from Centos7 to Rocky 8

Creating a new rocky 8 LDAP replica

1. Login to Morpheus
2. Go to Provisioning → Instances and click '+ADD'
3. Select the LDAP replica Instance type
4. Select a new name for the VM (e.g. ldap-rocky8) and click 'Next'
5. Use the following inputs for the VM and then click 'Next' until the deployment starts:
   
   1. version: 8
   2. plan: eo1.medium
   3. networks: private
   4. security group: ldap

Migrate from Rocky 8 to Rocky 9

Creating a new rocky 8 LDAP replica

1. Login to Morpheus
2. Go to Provisioning → Instances and click '+ADD'
3. Select the LDAP replica Instance type
4. Select a new name for the VM (e.g. ldap-rocky8) and click 'Next'
5. Use the following inputs for the VM and then click 'Next' until the deployment starts:
   
   1. version: 9
   2. plan: eo1.medium
   3. networks: private
   4. security group: ldap

Create backup of a VM

1. Go to an Ubuntu 22 VM and select 'Run Workflow'
   
2. Select the 'Create Backup of a VM using Openstack Applications Credentials' 
   

   

3. Insert inputs and run the workflow where you provide: 
   
   1. Name of the VM to backup
   2. Openstack Application Credentials ID and Secret

Switch Interfaces of two VMs

1. Go to an Ubuntu 22 VM and select 'Run Workflow'
   
2. Select the 'Switch Interfaces of two VMs using Openstack Applicaitons Credentials'
   
3. Insert inputs and run the workflow where you provide:
   1. OLD VM in this case is the OLD LDAP machine name
   2. NEW VM in this case is the NEW LDAP machine name
   3. Openstack Application Credentials ID and Secret

Update Morpheus

1. Login to Morpheus and change the value of the hostname for LDAP, going to Tools → Cypher:
   1. Delete the secret/ldap_hostname
      
   2. Use the '+ADD' to create a new secret
   3.  Add KEY: secret/ldap_hostname and VALUE: NEW_LDAP_HOSTNAME 

Tests

1. ssh to ssh-proxy in your tenancy
2. ssh using DNS to the new LDAP machine
3. Run sudo ipactl status → verify the services are all up and running
4. From Morpheus go to Provisioning → Instances and deploy a new machine to test the enrollment to LDAP DNS is working correctly with the new LDAP machine.

Known possible errors

After the IPA Migration, especially from Centos7 to Rocky9, there might be still some possible errors, like the one below:

ipa: ERROR: Operations error: Allocation of a new value for range cn=posix ids,cn=distributed numeric assignment plugin,cn=plugins,cn=config failed! Unable to proceed.

There is a FreeIPA doc site related to this: https://www.freeipa.org/page/V3/Recover_DNA_Ranges.html

The fix for that error is the following command:

1. Identify min and max range of IDs 

    ipa idrange-find

2. Set the lower boundary to exclude every existing account (as of ipa user-find | grep 'UID')
3. Assign the DNS range using ${min}-${max} identified in the previous steps 

    ipa-replica-manage dnarange-set $ldap_server ${min}-${max}

4. Check the range that is used 
   

ipa-replica-manage dnarange-show