Creating CA

$ pkicreate \
 -pki_instance_root=/var/lib \
 -pki_instance_name=pki-ca \
 -subsystem_type=ca \
 -secure_port=9443 \
 -unsecure_port=9180 \
 -tomcat_server_port=9701 \
 -user=pkiuser \
 -group=pkiuser \
 -redirect conf=/etc/pki-ca \
 -redirect logs=/var/log/pki-ca

Configuring CA

$ pkisilent ConfigureCA \
 -cs_hostname $HOSTNAME \
 -cs_port 9443 \
 -preop_pin `grep preop.pin= /var/lib/pki-ca/conf/CS.cfg | awk -F= '{ print $2; }'` \
 -client_certdb_dir /var/lib/pki-ca/certs \
 -client_certdb_pwd Secret.123 \
 -token_name internal \
 -domain_name EXAMPLE-COM \
 -subsystem_name 'Certificate Authority' \
 -ldap_host $HOSTNAME \
 -ldap_port 389 \
 -base_dn ou=ca,dc=example,dc=com \
 -db_name example.com-pki-ca \
 -bind_dn 'cn=Directory Manager' \
 -bind_password Secret.123 \
 -remove_data true \
 -key_type rsa \
 -key_size 2048 \
 -key_algorithm SHA256withRSA \
 -signing_signingalgorithm SHA256withRSA \
 -save_p12 true \
 -backup_fname /var/lib/pki-ca/certs/ca-server-certs.p12 \
 -backup_pwd Secret.123 \
 -ca_sign_cert_subject_name 'CN=Certificate Authority,O=EXAMPLE-COM' \
 -ca_ocsp_cert_subject_name 'CN=OCSP Signing Certificate,O=EXAMPLE-COM' \
 -ca_server_cert_subject_name CN=$HOSTNAME,O=EXAMPLE-COM \
 -ca_subsystem_cert_subject_name 'CN=CA Subsystem Certificate,O=EXAMPLE-COM' \
 -ca_audit_signing_cert_subject_name 'CN=CA Audit Signing Certificate,O=EXAMPLE-COM' \
 -admin_user caadmin \
 -agent_name caadmin \
 -admin_email caadmin@example.com \
 -admin_password Secret.123 \
 -agent_key_size 2048 \
 -agent_key_type rsa \
 -agent_cert_subject CN=caadmin,UID=caadmin,E=caadmin@example.com,O=EXAMPLE-COM

For external CA step 1:

$ pkisilent ConfigureCA \
 ... \
 -external true \
 -ext_csr_file ipa.csr

For external CA step 2:

$ pkisilent ConfigureCA \
 ... \
 -external true \
 -ext_ca_cert_file ipa.crt \
 -ext_ca_cert_chain_file external.crt