Before this change we used the API /status endpoint to get specific information
on pools such as the number of ready VMs and the max.
This commit creates two new endpoints to get to that information much quicker
1) poolstat?pool= takes a comma separated list of pools to return, and will provide
the max, ready and alias values.
2) /totalrunning will calculate the total number of running VMs across all pools
This commit updates how vmpooler retrieves VMs to add a VM to the running queue as soon as it is checked out. Without this change it is possible that a VM can be discovered when it is checked out before it is added to the running queue if multiple systems are requested. Additionally, the dockerfile is updated to support specifying the version of vmpooler to install.
This change updates handling of pool aliases to allow for more than a
single pool to be configured as an alias pool. Without this change if
multiple pools are configured as an alias the last one to configure it
is set as the alias for that pool.
Additionally, redis testing requirements are removed in favor of
mock_redis. Without this change a redis server is required to run
vmpooler tests.
This commit updates vmpooler to set configuration values received via environment variables to integer values when an integer value is expected. Without this change vmpooler does not support setting integer values via environment variables. Additionally, testing is added for configuring vmpooler via environment variables.
To support this testing the gem climate_control is added, which allows
for testing environment variables without those set variables leaking to
other tests.
This commit updates jruby in dockerfiles from 9.1 to 9.2. Without this change the dockerfiles use a version of ruby that is no longer tested with vmpooler.
This commit updates travis configuration to stop testing 2.3.x and jruby 9.1.x. Without this change tests fail due to library incompatibilities with ruby 2.3.x.
This commit updates vm usage stats collection to replace all instances of '.' characters within node strings. Without this change the node string containing a '.' character causes the metric to be interpreted as containing another node.
This commit updates providers_spec so the test ensures array content of the providers match. Without this change the provider_spec test will fail when comparing providers if the order is not exactly the same in each array.
This commit updates vmpooler to ship VM usage stats when a VM is destroyed. The stats are gathered for jobs based on user and pool name. If a jenkins build URL is present then this is broken down by user, instance, value stream, branch and project. Additionally, if present then the RMM_COMPONENT_TO_TEST_NAME will be listed after project. Without this change we do not collect stats on per VM usage and its correlation to users and pools.
This commit fixes checking of a VM that has already been identified as ready. Without this change a ready VM that has failed will be identified as having failed, but will not successfully be removed from the ready queue. Additionally, the default vm_checktime value has been reduced from 15 to 1 to ensure that ready VMs are checked within one minute of the time they have reached the ready state by default.
Lastly, the docker-compose files are updated to specify that the redis
instance used is a local redis instance.
This commit updates the dashboard for vmpooler to ensure it is synchronized with any redis based configuration values before displaying the dashboard. Without this change the pool size value may be displayed incorrectly if the value has been set via the /config/poolsize API endpoint.
This commit updates fetch_single_vm to return the name of the template that was requested, instead of the name of the pool providing the VM to meet the request. Without this change, when an alias is used for fetching a VM, a different pool title may be returned containing the requested VMs than the user initially requested.
This commit updates get_vm in the vmpooler API to allow for setting weights for backends. Additionally, when an alias for a pool exists, and the backend configured is not weighted, then the selection of the pool based on alias will be randomly sampled. Without this change any pool with the title of the alias is exhausted before an alternate pool with the configured alias is used, which results in an uneven distribution of VMs. When all backends involved are configured with weighted values the VM selection will be based on probability using those weights.
A bug is fixed when setting the default ttl for check_ready_vm.
Pickup is added to handle weighted VM selection.
A dockerfile is added that allows for building and installing vmpooler
from the current HEAD in docker to make for easy testing.
