mirror of
https://github.com/schoebel/mars
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233 lines
8.5 KiB
Plaintext
233 lines
8.5 KiB
Plaintext
GPLed software AS IS, sponsored by 1&1 Internet AG (www.1und1.de).
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Contact frank.liepold@1und1.de
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The test suite is work in progress.
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At the moment it is not in the state to be usable outside of the development
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team.
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Event this file is not complete!
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=============================================================================
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Contents
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--------
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1. Running a test
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2. Naming conventions
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3. Error handling
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4. Signal handling
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5. Configuration of the local build environment
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6. Configuration of the test hosts on which the tests are running
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6.1. Access requirements
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6.2. Installation kernel and mars module on the test hosts
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7. Configuration of logical volumes
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8. Resources
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9. Starting the whole test suite via cronjob
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10. Concurrent test runs
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1. Running a test
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-----------------
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Tests are executed by a call to scripts/start_test.sh from a subdirectory
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of one of the both directories build_test_environment and test_cases.
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The scope and configuration of a test is completely described by this
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subdirectory (we call it start directory) as follows:
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- All leaf subdirectories of the start directory define one test case.
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If the test specified by one leaf subdirectory fails the tests belonging to
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other leaf subdirectories of the start directory will not be executed.
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Though only tests which are likely not to fail should be executed by only
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one call to start_test.sh. The simple and recommended way is to call
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start_test.sh for each leaf directory once.
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- For each leaf subdirectory xyz there exists a configuration file named
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xyz.conf which contains (among others) in the variables prepare_list,
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setup_list, run_list, cleanup_list and finish_list names of shell
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functions defined in scripts/modules/*.sh.
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These functions are called in the order they appear in the mentioned
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*list variables.
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The file xyz.conf may reside in the leaf directory or any of it's parent
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directories (up to 20 levels higher in the directory tree).
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- The configuration of the test case belonging to a leaf directory is defined
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by a set of *.conf files which are included by start_test.sh in the
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following order:
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-- default-*.conf: These are the configuration files belonging to the
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scripts scripts/modules/*.sh which are also included
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bei start_test.sh and which define all functions executed
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by the various tests.
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-- user_modules.conf
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-- <subdirname>.conf where subdirname runs top down through the parent
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directories starting with the immediate subdirectory of the start directory
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(or the immediate subdirectory directory given by optione --config_root_dir)
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to the leaf directory.
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If the start directory is a leaf directory the <leaf directory name>.conf
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is included.
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For example:
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1. start directory = test_cases/perf
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leaf directory = test_cases/perf/apply/no_parallel_writer
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leads to including of apply.conf and no_parallel_writer.conf (in this
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order!) which must reside as mentioned above in the leaf directory
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or any of it's parent directories (up to 20 levels).
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2. start directory = test_cases/perf/apply/no_parallel_writer
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--config_root_dir=.../test_cases/perf
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leaf directory = test_cases/perf/apply/no_parallel_writer
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leads to including the same *.conf files as above.
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3. start directory = test_cases/perf/apply/no_parallel_writer
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leaf directory = test_cases/perf/apply/no_parallel_writer
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leads to including of no_parallel_writer.conf
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2. Naming conventions
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---------------------
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- All functions defined in scripts/modules/*.sh have the script's name as
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name prefix (e.g. resource_check_variables)
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- All variables used in *.conf files should be "defined" (the shell has no
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explicit definition) and explained in a default-*.conf file. If a variable is
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"defined" in default-xyz.conf it's name is prefixed by xyz.
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- WIP
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3. Error handling
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-----------------
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WIP
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4. Signal handling
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------------------
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WIP
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5. Configuration of the local build environment
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-----------------------------------------------
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To build the mars module and userspace tools you need:
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- a directory containing a git repository which contains the kernel sources
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variable : checkout_mars_kernel_src_directory
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to be specified in file : default-checkout_mars.conf
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- the branch from which to take the kernel sources
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variable : checkout_mars_kernel_git_branch
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to be specified in file : default-checkout_mars.conf
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- a directory containing the kernel sources against which the mars module
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should be built (may be the same as checkout_mars_kernel_src_directory)
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variable : make_mars_kernel_src_directory
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to be specified in file : default-make_mars.conf
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- a directory containing a git repository which contains the mars sources
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variable : checkout_mars_src_directory
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to be specified in file : default-checkout_mars.conf
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- the branch from which to take the mars sources
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variable : checkout_mars_git_branch
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to be specified in file : default-checkout_mars.conf
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- a directory containing the mars sources which is linked in to the
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kernel source directory make_mars_kernel_src_directory for making the mars
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module.
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May coincide with checkout_mars_src_directory
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variable : make_mars_src_dir
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to be specified in file : default-make_mars.conf
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- a directory containing a git repository which contains the userspace tool
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marsview
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variable : checkout_mars_contrib_src_directory
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to be specified in file : default-checkout_mars.conf
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- the branch from which to take marsview
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variable : checkout_mars_contrib_git_branch
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to be specified in file : default-checkout_mars.conf
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6. Configuration of the test hosts on which the tests are running
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------------------------------------------------------------
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The test hosts are given in main_host_list (default-main.conf).
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6.1. Access requirements
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------------------------
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The tests are executed by ssh commands from your work station to the
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test hosts. These commands must not prompt for a password. Though a
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id file (for ssh -i <id-file>) with null password must be specified in
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main_ssh_idfile_opt (default-main.conf)
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All test hosts must have ssh access to each other without prompt for passwords
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(this is required by marsadm join-cluster).
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On your work station you must have sudo permissions for "make install", "cp".
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And root of your work station must have ssh access (as root) without prompt for
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password to all test hosts (this is required, because local files belonging to
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root must be copied to the test hosts).
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6.2. Installation kernel and mars module on the test hosts
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----------------------------------------------------------
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This is done by executing the tests
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build_test_environment/checkout
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build_test_environment/make/make_mars/grub
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build_test_environment/install_mars
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It's a must to read default-checkout_mars.conf, default-make_mars.conf,
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default-install_mars.conf and the *.conf files in the directories above
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otherwise you risk damage of the boot information on your work station and/or the test hosts.
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After these three tests (which you should call one after the other!) you can
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reboot the test hosts with the new kernel.
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7. Configuration of logical volumes
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-----------------------------------
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This is done by the test
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build_test_environment/lv_config
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The configuration options are contained in default-lv_config.conf
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8. Resources
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------------
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Cluster and Resources are created by
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build_test_environment/cluster
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build_test_environment/resource/create_resource
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Initially the first host in main_host_list is the primary, the following hosts
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secondaries.
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If you do not change any configuration variables after the
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build_test_environment/resource/create_resource Test you will have created one
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resource lv-1-2 on all hosts with underlying data devices /dev/vg-mars/lv-1-2.
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/mars will be mounted on /dev/vg-mars/lv-6-100.
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For further information please read default-cluster.conf and
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default-resource.conf.
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9. Starting the whole test suite via cronjob
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--------------------------------------------
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This can be done mars_test_cronjob.sh. The variable tests_to_execute contains
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all tests to be executed.
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10. Concurrent test runs
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------------------------
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To avoid concurrent run of tests on the same host each run creates temporary
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files (/tmp/test-suite_on.<host>, see main_lock_file_list) and deletes them
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afterwards.
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