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Newdeploy backend (#387)

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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
This commit is contained in:
Vishal
2018-02-03 01:02:28 +08:00
committed by Ta-Ching Chen
parent 31ba992726
commit 4cf195768e
25 changed files with 1503 additions and 323 deletions
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fission/main.go
+16 -4
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@@ -36,6 +36,15 @@ func main() {
htMethodFlag := cli.StringFlag{Name: "method", Usage: "HTTP Method: GET|POST|PUT|DELETE|HEAD; defaults to GET"}
htUrlFlag := cli.StringFlag{Name: "url", Usage: "URL pattern (See gorilla/mux supported patterns)"}
// Resource & scale related flags (Used in env and function)
minCpu := cli.StringFlag{Name: "mincpu", Usage: "Minimum CPU to be assigned to pod (In millicore, minimum 1)"}
maxCpu := cli.StringFlag{Name: "maxcpu", Usage: "Maximum CPU to be assigned to pod (In millicore, minimum 1)"}
minMem := cli.StringFlag{Name: "minmemory", Usage: "Minimum memory to be assigned to pod (In megabyte)"}
maxMem := cli.StringFlag{Name: "maxmemory", Usage: "Maximum memory to be assigned to pod (In megabyte)"}
minScale := cli.StringFlag{Name: "minscale", Usage: "Minmum number of pods (Uses resource inputs to configure HPA)"}
maxScale := cli.StringFlag{Name: "maxscale", Usage: "Maximum number of pods (Uses resource inputs to configure HPA)"}
targetcpu := cli.StringFlag{Name: "targetcpu", Usage: "Target average CPU across pods for scaling (In percentage, defaults to 80)"}
// functions
fnNameFlag := cli.StringFlag{Name: "name", Usage: "function name"}
fnEnvNameFlag := cli.StringFlag{Name: "env", Usage: "environment name for function"}
@@ -54,12 +63,13 @@ func main() {
fnBuildCmdFlag := cli.StringFlag{Name: "buildcmd", Usage: "build command for builder to run with"}
fnLogCountFlag := cli.StringFlag{Name: "recordcount", Usage: "the n most recent log records"}
fnForceFlag := cli.BoolFlag{Name: "force", Usage: "Force update a package even if it is used by one or more functions"}
fnExecutorTypeFlag := cli.StringFlag{Name: "executortype", Usage: "Executor type for execution; one of 'poolmgr', 'newdeploy' defaults to 'poolmgr'"}
fnSubcommands := []cli.Command{
{Name: "create", Usage: "Create new function (and optionally, an HTTP route to it)", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnBuildCmdFlag, fnPkgNameFlag, htUrlFlag, htMethodFlag}, Action: fnCreate},
{Name: "create", Usage: "Create new function (and optionally, an HTTP route to it)", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnBuildCmdFlag, fnPkgNameFlag, htUrlFlag, htMethodFlag, minCpu, maxCpu, minMem, maxMem, minScale, maxScale, fnExecutorTypeFlag, targetcpu}, Action: fnCreate},
{Name: "get", Usage: "Get function source code", Flags: []cli.Flag{fnNameFlag}, Action: fnGet},
{Name: "getmeta", Usage: "Get function metadata", Flags: []cli.Flag{fnNameFlag}, Action: fnGetMeta},
{Name: "update", Usage: "Update function", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnPkgNameFlag, fnBuildCmdFlag, fnForceFlag}, Action: fnUpdate},
{Name: "update", Usage: "Update function source code", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnPkgNameFlag, fnBuildCmdFlag, fnForceFlag, minCpu, maxCpu, minMem, maxMem, minScale, maxScale, fnExecutorTypeFlag, targetcpu}, Action: fnUpdate},
{Name: "delete", Usage: "Delete function", Flags: []cli.Flag{fnNameFlag}, Action: fnDelete},
{Name: "list", Usage: "List all functions", Flags: []cli.Flag{}, Action: fnList},
{Name: "logs", Usage: "Display function logs", Flags: []cli.Flag{fnNameFlag, fnPodFlag, fnFollowFlag, fnDetailFlag, fnLogDBTypeFlag, fnLogCountFlag}, Action: fnLogs},
@@ -107,14 +117,16 @@ func main() {
// environments
envNameFlag := cli.StringFlag{Name: "name", Usage: "Environment name"}
envPoolsizeFlag := cli.IntFlag{Name: "poolsize", Usage: "Size of the pool, if not specified defaults to 3"}
envImageFlag := cli.StringFlag{Name: "image", Usage: "Environment image URL"}
envBuilderImageFlag := cli.StringFlag{Name: "builder", Usage: "Environment builder image URL (optional)"}
envBuildCmdFlag := cli.StringFlag{Name: "buildcmd", Usage: "Build command for environment builder to build source package (optional)"}
envVersionFlag := cli.IntFlag{Name: "version", Usage: "Environment API version: defaults to 1 (means v1 interface)"}
envSubcommands := []cli.Command{
{Name: "create", Aliases: []string{"add"}, Usage: "Add an environment", Flags: []cli.Flag{envNameFlag, envImageFlag, envBuilderImageFlag, envBuildCmdFlag, envVersionFlag}, Action: envCreate},
{Name: "create", Aliases: []string{"add"}, Usage: "Add an environment", Flags: []cli.Flag{envNameFlag, envPoolsizeFlag, envImageFlag, envBuilderImageFlag, envBuildCmdFlag, minCpu, maxCpu, minMem, maxMem, envVersionFlag}, Action: envCreate},
{Name: "get", Usage: "Get environment details", Flags: []cli.Flag{envNameFlag}, Action: envGet},
{Name: "update", Usage: "Update environment", Flags: []cli.Flag{envNameFlag, envImageFlag, envBuilderImageFlag, envBuildCmdFlag}, Action: envUpdate},
{Name: "update", Usage: "Update environment", Flags: []cli.Flag{envNameFlag, envPoolsizeFlag, envImageFlag, envBuilderImageFlag, envBuildCmdFlag, minCpu, maxCpu, minMem, maxMem}, Action: envUpdate},
{Name: "delete", Usage: "Delete environment", Flags: []cli.Flag{envNameFlag}, Action: envDelete},
{Name: "list", Usage: "List all environments", Flags: []cli.Flag{}, Action: envList},
}