Configure passwords

Configure the system password for the root user on the compute nodes. This password can be provided in encrypted or clear text form using the chtab command.
- Clear text:
```
chtab key=system passwd.username=root passwd.password=abc123
```
- Encrypted using openssl:
```
chtab key=system passwd.username=root passwd.password=`openssl passwd -6 abc123`
```
Configure the passwords for Management modules of the compute nodes.
- For OpenBMC managed systems:
```
chtab key=openbmc passwd.username=root passwd.password=0penBmc
```
- For IPMI/BMC managed systems:
```
chtab key=ipmi passwd.username=ADMIN passwd.password=admin
```
- For HMC managed systems:
```
chtab key=hmc passwd.username=hscroot passwd.password=abc123
```
  If the username/password is different for multiple HMCs, set the username and password attribute for each HMC node object in xCAT
- For Blade managed systems:
```
chtab key=blade passwd.username=USERID passwd.password=PASSW0RD
```
- For FSP/BPA (Flexible Service Processor/Bulk Power Assembly) the factory default passwords must be changed before running commands against them.
```
rspconfig frame general_passwd=general,<newpassword>
rspconfig frame admin_passwd=admin,<newpassword>
rspconfig frame HMC_passwd=,<newpassword>
```
If using the xCAT REST API
1. Create a non-root user that will be used to make the REST API calls.
  useradd xcatws passwd xcatws # set the password
2. Create an entry for the user into the xCAT passwd table.
  chtab key=xcat passwd.username=xcatws passwd.password=<xcatws_password>
3. Set a policy in the xCAT policy table to allow the user to make calls against xCAT.
  mkdef -t policy 6 name=xcatws rule=allow
When making calls to the xCAT REST API, pass in the credentials using the following attributes: userName and userPW