Since created yaml job group and published needed qcows in previous poo (poo#112667), let trigger the tests:

1. how to trigger migration cases, take "node01" for example # /usr/share/openqa/script/client isos post --host http://openqa.nue.suse.com --apikey $key --apisecret $secret _GROUP_ID=184 DISTRI=sle VERSION=15-SP4 FLAVOR=Full ARCH=x86_64 TEST=migration_offline_dvd_sle12sp3_ltss_ha_alpha_node01_mig BUILD=151.1 ISO=SLE-15-SP4-Full-x86_64-Build151.1-Media1.iso MIRROR_FTP=ftp://openqa.suse.de/SLE-15-SP4-Full-x86_64-Build151.1-Media1 MIRROR_HTTP=http://openqa.suse.de/assets/repo/SLE-15-SP4-Full-x86_64-Build151.1-Media1 REPO_0=SLE-15-SP4-Full-x86_64-Build151.1-Media1 { count => 1, failed => [], ids => [8965336], scheduled_product_id => 933213 }

2.how to trigger "verify" cases
That is:
TEST=\
migration_offline_dvd_verify_sle12sp3_ltss_ha_alpha_node01_mig,\
migration_offline_dvd_verify_sle12sp3_ltss_ha_alpha_node02_mig,\
ha_supportserver_offline_dvd_sle12-SP3_mig

/usr/share/openqa/script/client isos post --host http://openqa.nue.suse.com --apikey $key --apisecret $secret _GROUP_ID=184 DISTRI=sle VERSION=15-SP4 FLAVOR=Full ARCH=x86_64 TEST=$TEST BUILD=151.1 ISO=SLE-15-SP4-Full-x86_64-Build151.1-Media1.iso MIRROR_FTP=ftp://openqa.suse.de/SLE-15-SP4-Full-x86_64-Build151.1-Media1 MIRROR_HTTP=http://openqa.suse.de/assets/repo/SLE-15-SP4-Full-x86_64-Build151.1-Media1 REPO_0=SLE-15-SP4-Full-x86_64-Build151.1-Media1¶