A newdeploy backend which uses new deployment to serve requests. This is the second phase of #193 and builds on top of changes in #384 .
* Executor layer added on top of pool manager
* Removed the external server for executor
* Minor changes to keep existing semantics as much possible
* Separating the executor vs. poolmgr backend functionality and associated data members
* Executor logic separated from Poolmgr backend completely, placeholder for new backend
* Changed references to poolmgr in tests
* Moved poolmgr to it's package, as a side effect moved Cache to its's package (was causing cyclical dependency) and had to make some data structures exposed outside package
* Rebased from master and changed references to tpr -> crd
* Executor layer added on top of pool manager
* Executor logic separated from Poolmgr backend completely, placeholder for new backend
* Changed podName to a generic objectReference in fscache (#391)
Changed podName to a generic objectReference in function service cache implementation.
* Moved poolmgr to it's package, as a side effect moved Cache to its's package (was causing cyclical dependency) and had to make some data structures exposed outside package
* Rebased from master and changed references to tpr -> crd
* Merged from master with latest changes
* Executor layer added on top of pool manager
* Removed the external server for executor
* Minor changes to keep existing semantics as much possible
* Separating the executor vs. poolmgr backend functionality and associated data members
* Executor logic separated from Poolmgr backend completely, placeholder for new backend
* Changed references to poolmgr in tests
* update compiling.md to use helm
* Compile instructions: changed pullPolicy to IfNotPresent (#378)
Containers will get stuck in ErrImagePull/ImagePullBackOff state otherwise
* Moved poolmgr to it's package, as a side effect moved Cache to its's package (was causing cyclical dependency) and had to make some data structures exposed outside package
* Fetcher called when pod is created for newDeploy backend but also supports older way, this is WIP and still needs pod specialization and creating & exposing a service so the URL can be hit by end user
* WIP Specializing the POD as part of startup along with fetching
* Working specialization of a new deployment. Needs some work on caching, cleanup etc.
* Switched to service based address instead of POD address
* Minor formating issue fixed
* Added logging to pods and a readiness check, the readiness check is flaky though ATM
* Fixed some rebase issues that were failing build
* Better names for K8S objects and methods
* Switched usage of FuncSvc in backends from pod to api.ObjectReference
* Adding retry to fetcher request, for now just using default retry client which might need tweaking in future
* Switching to plain old retry, some issue in getting retryablehttp with glide import
* Removed stale executor service & deployment from previous merge
* Addressed review comments, still testing some areas
* Added types in FunctionSpec
* Resolved conflicts due to merge from executor_abstraction branch
* Added backend type on EnvironmentSpec along with operations for create/list/update, the pools are created/destroyed based on change in backend type
* Backend from types and a minor err return issue fixed
* Draft version of CPU and memory parameters added to environment
* Added resourceReq to newDeploy, though it has some issues
* Issue with resourceName fixed, now newdeploy pods also pick up resources from the environment config
* Adding scale params, removing validation on CPU params for now
* Fixed a formatting issue
* Checking if slight more delay helps in the test which is currently failing for internal routes
* The resourceList newly added in Env can not be compared by compiler, hence must use breakdown comparison instead
* Added strategy selection on client side
* Added caching, informers, delete operations for newdeploy backend functions
* Deleted a stale directory
* A simple HPA based on scale parameters, testing still WIP
* Fixed a small issue in delete function, added HPA delete too when deleting a function
* Previous merge missed the pkg flag for update fn command somehow, fixed that
* Fixed comments from review
* Changed poolmgr cleanup to be generic cleanup and moved to executor, added instanceID labels to newdeploy so that cleanup works
* Moved instanceIdLabel to types to avoid cyclic dependency
* More review fixes
* Tweaking sleep to see results
* If user does not provide poolsize, then it should not default to zero
* Switched to naming convention for now, fixed default poolsize if not provided
* Changed error return behaviour in delete fn, also changed cleanup to look based on obj type though support for additional type will need more work
* Changed check location so avoid false logging
* Test for newdeploy backend
* Adding tests for poolmgr backend
* Fixed an issue with glide dependency version, already fixed in master
* Added instanceId for NewDeploy, Initial cleanup now cleans older objects of newdeploy backend, removed eagercreate flag and instead using minScale to drive eager creation
* Moved cleanup to executor layer with cleanup for newDeploy backend, changes to use the new Cache impl
* Cleaning up pod & rs along with deployment for newdeploy backend
* Enhanced fn and env listing to show min/maxscale and resuorces respectively
* Added conditional heapster deployment and fixed a small issue with resources for fetcher container in function pod
* Addressed review comments from previous change
* Addressed some more review comments - majorly create only on NotFoundError
* Added TargetCPU as an input for scaling
* Bumped target CPU to be greater than 0 and added a default value
* Min replicas should be 1 even if the minScale is 0 when creating deployment
* Changed name from 'backend' to executorType, added additional test for minscale 0 case, changed TargetCPU to TargetCPUPercent
