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.. _snf-burnin:
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snf-burnin
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^^^^^^^^^^
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:ref:`snf-burnin <snf-burnin>` is an integration testing tool for a running
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Synnefo deployment. Using the Synnefo REST APIs, it simulates a real user and
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tries to identify any bugs or performance issues by running a series of a tests.
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The tests are devided into the following categories:
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* :ref:`Authentication Tests <unauthorizedtestcase>`
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* :ref:`Image Tests <imagestestcase>`
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* :ref:`Flavor Tests <flavorstestcase>`
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* :ref:`Server Tests <serverstestcase>`
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* :ref:`Network Tests <networktestcase>`
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* :ref:`Storage Tests <pithostestcase>`
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Usage
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=====
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:ref:`snf-burnin <snf-burnin>` is a command line tool written in python. It
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supports a number of command line options though which the user can change the
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behaviour of the tests.
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A typical usage of snf-burnin is:
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::
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  snf-burnin --token=USERS_SECRET_TOKEN \
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             --auth-url="https://accounts.synnefo.org/identity/v2.0" \
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             --system-images-user=SYSTEM_IMAGES_USER_ID \
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             --image-id=IMAGE_ID \
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             --log-folder=LOG_FOLDER
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The above options are the minimal ones (mandatory) that one has to speficy in
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order for snf-burnin to properly function. The first two are the credentials
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needed to access Synnefo's REST API and can be found in the user's dashboard.
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The third is needed by some :ref:`Image Tests <imagestestcase>` as we will see
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later. The forth tells snf-burnin which image to use for creating our test
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servers and the last one specifies the log folder where any results should be
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saves.
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For more information about snf-burnin and it's command line options, run
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snf-burnin with help.
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::
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  Usage: snf-burnin [options]
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  snf-burnin runs a number of test scenarios on a Synnefo deployment.
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  Options:
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    -h, --help            show this help message and exit
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    --auth-url=AUTH_URL   The AUTH URI to use to reach the Synnefo API
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    --system-images-user=SYSTEM_IMAGES_USER
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                          Owner of system images
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    --token=TOKEN         The token to use for authentication to the API
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    --nofailfast          Do not fail immediately if one of the tests fails
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                          (EXPERIMENTAL)
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    --no-ipv6             Disables ipv6 related tests
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    --action-timeout=TIMEOUT
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                          Wait SECONDS seconds for a server action to complete,
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                          then the test is considered failed
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    --build-warning=TIMEOUT
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                          Warn if TIMEOUT seconds have passed and a build
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                          operation is still pending
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    --build-fail=BUILD_TIMEOUT
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                          Fail the test if TIMEOUT seconds have passed and a
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                          build operation is still incomplete
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    --query-interval=INTERVAL
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                          Query server status when requests are pending every
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                          INTERVAL seconds
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    --fanout=COUNT        Spawn up to COUNT child processes to execute in
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                          parallel, essentially have up to COUNT server build
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                          requests outstanding (EXPERIMENTAL)
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    --force-flavor=FLAVOR ID
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                          Force all server creations to use the specified FLAVOR
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                          ID instead of a randomly chosen one, useful if disk
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                          space is scarce
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    --image-id=IMAGE ID   Test the specified image id, use 'all' to test all
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                          available images (mandatory argument)
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    --show-stale          Show stale servers from previous runs, whose name
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                          starts with `snf-test-'
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    --delete-stale        Delete stale servers from previous runs, whose name
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                          starts with `snf-test-'
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    --force-personality=PERSONALITY_PATH
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                          Force a personality file injection.
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                          File path required.
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    --log-folder=LOG_FOLDER
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                          Define the absolute path where the output
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                          log is stored.
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    -V, --verbose         Print detailed output about multiple processes
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                          spawning
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    --set-tests=TESTS     Set comma seperated tests for this run.
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                          Available tests: auth, images, flavors,
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                          servers, server_spawn,
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                          network_spawn, pithos.
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                          Default = all
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Log files
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=========
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In each run, snf-burnin stores log files under the folder defined in the
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--log-folder parameter. For every run, it creates a new subfolder using a
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timestamp and the image-id as unique names. The name prefixes of the log files
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are:
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* details: Showing the complete log of snf-burnin run.
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* error: Showing the testcases that encountered a runtime error.
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* failed: Showing the testcases that encountered a failure.
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Detailed description of testcases
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=================================
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Here we have a complete list of all the tests snf-burnin performs, each listed
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under the category in which it belongs. The user can choose to run some or all
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of the categories listed below using the "--set-tests" command line flag.
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.. _unauthorizedtestcase:
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UnauthorizedTestCase
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--------------------
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* Use a random token and try to authenticate to Astakos service. The expected
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  responce should be "401 Unauthorized".
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.. _imagestestcase:
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ImagesTestCase
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--------------
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* Request from Cyclades the list of all registered images and check that its
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  length is greater than 0 (ie test that there are registered images for the
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  users to use).
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* Request from Cyclades the list of all registered images with details and check
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  that is length is greater than 0.
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* Test that the two lists retrieved earlier contain exactly the same images.
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* Using the SYSTEM_IMAGES_USER_ID choose only the images that belong to the
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  system user and check that their names are unique. This test can not be
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  applied for all images as the users can name their images whatever they want.
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* Again for the images that belong to the system user check that the "osfamily"
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  and the "root_partition" metadata values have been defined. These metadata
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  values are mandatory for an image to be used.
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* Download from Pithos+ the image specified with the "--image-id" parameter and
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  save it locally.
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* Create a new container to Pithos+ named "images".
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* Upload the download image to Pithos+ under the "images" container.
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* Use Plankton service to register the above image. Set the "osfamily" and
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  "root_partition" metadata values which are mandatory.
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* Request from Cyclades the list of all registered images and check that our
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  newly registered image is among them.
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* Delete image from Pithos+ and also the local copy on our disk.
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.. _flavorstestcase:
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FlavorsTestCase
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---------------
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* Request from Cyclades the list of all flavors and check that its length is
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  greater than 0 (ie test that there are flavors for the users to use).
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* Request from Cyclades the list of all flavors with details and check that its
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  length is greater than 0.
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* Test that the two lists retrived earlier contain exactly the same flavors.
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* Test that all flavors have unique names.
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* Test that all flavors have a name of the form CxxRyyDzz where xx is the vCPU
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  count, yy is the RAM in MiB, and zz is the Disk in GiB.
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.. _serverstestcase:
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ServersTestCase
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---------------
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* Request from Cyclades the list of all servers with and without details and
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  check that the two lists have the same length.
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* Test that simple and detailed servers lists have the same names.
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SpawnServerTestCase
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-------------------
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* Submit a create server request to Cyclades service. Use the IMAGE_ID specified
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  from the command line. If FLAVOR_ID was specified as well use that one, else
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  choose one randomly. The name of the new server will start with "snf-test-"
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  followed by a timestamp so we can know which servers have been created from
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  snf-burnin and when. Also check that the response from Cyclades service
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  contains the correct server_name, server_flavor_id, server_image_id and the
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  status of the server is currenlty "BUILD". Finally from the above response,
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  extract the server's id and password.
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* Request from Cyclades the list of all servers with details and check that our
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  newly created server has correct server_name, server_flavor_id,
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  server_image_id and the status is "BUILD".
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* Request from Cyclades the details from the image we used to build our server.
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  Extract the "os" and "users" metadata values. Using the first one update the
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  server's metadata and setup the "os" metadata value to be the same with the
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  one from the image's metadata. Using the second one determine the username to
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  use for future connections to this host.
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* Retrieve the server's metadata from Cyclades and verify that server's metadata
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  "os" key is set based on image's metadata.
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* Wait until server changes state to ACTIVE. This is done by querying the
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  service for the server's state every QUERY_INTERVAL period of time until
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  BUILD_TIMEOUT has been reached. Both QUERY_INTERVAL and BUILD_TIMEOUT values
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  can be changed from the command line.
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* Request from Cyclades service a VNC console to our server. In order to verify
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  that the returned connection is indeed a VNC one, snf-burnin implements the
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  first basic steps of the RFB protocol:
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    * Step 1. Send the ProtocolVersion message (par. 6.1.1)
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    * Step 2. Check that only VNC Authentication is supported (par 6.1.2)
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    * Step 3. Request VNC Authentication (par 6.1.2)
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    * Step 4. Receive Challenge (par 6.2.2)
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    * Step 5. DES-Encrypt challenge, using the password as key (par 6.2.2)
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    * Step 6. Check that the SecurityResult is correct (par 6.1.3)
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* Request from Cyclades the server's details and check that our server's has
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  been assigned with an IPv4 address.
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* Check that our server has been assigned with an IPv6 address. This test can be
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  skipped if for some reason the targeted Synnefo deployment doesn't support
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  IPv6.
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* Test that our server responds to ping requests on IPv4 address.
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* Test that our server responds to ping requests on IPv6 address. This test can
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  also be skipped.
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* Submit a shutdown request for our server.
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* Wait and verify that the status of our server became "STOPPED".
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* Submit a start request for our server.
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* Wait and verify that the status of our server became "ACTIVE" again.
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* Test if server responds to ping on IPv4 address (verify up and running).
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* Test if server responds to ping on IPv6 address (verify up and running).
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* If the server is a Linux machine, SSH to it using its IPv4 address and verify
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  that it has a valid hostname.
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* If the server is a Linux machine, SSH to it using its IPv6 address and verify
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  that it has a valid hostname.
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* If the server is a Windows machine, try to connect to its RDP port using both
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  its IPv4 and IPv6 addresses.
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* If during the creation of the server, the user chose a personality file to be
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  used, check that this file is been presented in the server and its contents
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  are correct.
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* Submit server delete request.
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* Wait and verify that the status of our server became "DELETED".
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* Request from Cyclades the list of all servers and verify that our newly
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  deleted server is not in the list.
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.. _networktestcase:
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NetworkTestCase
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---------------
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* Submit create server A request.
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* Wait and verify that the status of our A server became "ACTIVE".
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* Submit create server B request.
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* Wait and verify that the status of our B server became "ACTIVE".
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* Submit create private network request. Wait and verify that the status of the
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  network became "ACTIVE".
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* Connect the two servers (A and B) into the newly created network. Wait and
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  verify that both machines got an extra nic, hence have been connected to the
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  network.
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* Reboot server A.
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* Test if server A responds to ping on IPv4 address (verify up and running)
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* Reboot server B.
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* Test if server B responds to ping on IPv4 address (verify up and running)
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* Connect via SSH and setup the new network interface in server A.
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* Connect via SSH and setup the new network interface in server B.
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* Connect via SSH to server A and test if server B responds to ping via their
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  new interface.
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* Disconnect both servers from network. Check network details and verify that
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  both servers have been successfully disconnected.
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* Send delete network request. Verify that the network has been actually
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  deleted.
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* Send request to delete servers and wait until they are actually deleted.
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.. _pithostestcase:
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PithosTestCase
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--------------
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* Request from Pithos+ the list of containers and check that its length is
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  greater than 0 (ie test that there are containers).
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* Test that the containers have unique names.
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* Create a new container. Choose a random name for our container and then check
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  that it has been successfully created.
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* Upload a file to Pithos+ under our newly created container.
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* Download the file from Pithos+ and test it is the same with the one uploaded.
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* Remove created file and container from Pithos+ and verify that they have been
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  successfully deleted.
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Burnin as alert tool
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========================
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Burnin can be used to verify that a Synnefo deployment is working as expected
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and verify the admins in case of an error. For this there is a script under the
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/snf-tools/conf directory named **snf-burnin-run.sh** which is intended to be
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used from cron to periodically run burnin. It runs simultaneous many instances
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of burnin for a number of different users and report errors though email.