every test is separate executable file
backend for test:
- 1 machine for Maxscale
- = 4 machines for Master/Slave
- = 4 machines for Galera cluster
environmental variables contains all information about backend: IPs, user names, passwords, paths to tools, etc
backed can be created with help of MDBCI tool
configuring of Master/Slave and Galera can be done with help of maxscale-system-test/mdbci/run_test.sh script

Manuals

MDBCI and running tests basics

Hints: How to write a test

Jenkins instructions

Environmental variables

variable	meaning
node_N	Number of machines for Master/Slave
node_XXX_network	IP address of Master/Slave machine number XXX
node_XXX_private_ip	private IP address of Master/Slave machine XXX for AWS machines (for everything else - same as node_XXX
node_XXX_port	MariaDB port of Master/Slave machine XXX
node_XXX_whoami	user name to access Master/Slave machine XXX via ssh
node_XXX_access_sudo	'sudo ' if node_access_user_XXX does not have root rights, empty string if node_access_user_XXX has root rights
node_XXX_keyfile	full name of secret key to access Master/Slave machine XXX via ssh
node_XXX_start_db_command	bash command to start DB server on Master/Slave machine XXX
node_XXX_stop_db_command	bash command to stop DB server on Master/Slave machine XXX
node_user	DB user name to access Master/Slave nodes (have to have all priveligies with GRANT option)
node_password	password for node_user
galera_N	Number of machines for Galera
galera_XXX_network	IP address of Galera machine number XXX
galera_XXX_private	private IP address of Galera machine XXX for AWS machines (for everything else - same as node_XXX
galera_XXX_port	MariaDB port of Galera machine XXX
galera_XXX_whoami	user name to access Galera machine XXX via ssh
galera_XXX_access	'sudo ' if node_access_user_XXX does not have root rights, empty string if node_access_user_XXX has root rights
galera_XXX_keyfile	full name of secret key to access Galera machine XXX via ssh
galera_XXX_start_db_command	bash command to start DB server on Galera machine XXX
galera_XXX_stop_db_command	bash command to stop DB server on Galera machine XXX
galera_user	DB user name to access Galera nodes (have to have all priveligies with GRANT option)
galera_password	password for node_user
maxscale_cnf	full name of Maxscale configuration file (maxscale.cnf)
maxscale_log_dir	directory for Maxscale log files
maxscale_IP	IP address of Maxscale machine
maxscale_sshkey	full name of secret key to access Maxscale machine via ssh
maxscale_access_user	user name to access Maxscale machine via ssh
maxscale_access_sudo	'sudo ' if maxscale_access_user does not have root rights, empty string if maxscale_access_user has root rights
maxscale_user	DB user to access via Maxscale
maxscale_password	password for maxscale_user
maxscale_hostname	hostname of Maxscale machine
sysbench_dir	directory where Sysbanch is installed
ssl	'yes' if tests should try to use ssl to connect to Maxscale and to backends (obsolete, now should be 'yes' in all cases)
smoke	if 'yes' all tests are executed in 'quick' mode (less iterations, skip heavy operations)
backend_ssl	if 'yes' ssl config will be added to all servers definition in maxscale.cnf
use_snapshots	if TRUE every test is trying to revert snapshot before running the test
take_snapshot_command	revert_snapshot_command
revert_snapshot_command	Command line to revert a snapshot of all VMs
no_nodes_check	if yes backend checks are not executed (needed in case of RDS or similar backend)
no_backend_log_copy	if yes logs from backend nodes are not copied (needed in case of RDS or similar backend)
no_maxscale_start	Do not start Maxscale automatically
no_vm_revert	If true tests do not revert VMs after the test even if test failed