Fx docker template and canary batcher workflow

[longquanzheng]

What changed?
Fx docker template and canary batcher workflow

Why?

1. a bad change is merge in the MR(from my auto saving in my IDE) it should be {{ instead of { {
2. the current batcher canary is broken.

How did you test it?

Potential risks

Release notes

Documentation Changes

[coveralls]

Pull Request Test Coverage Report for Build a950b6ec-aca5-4590-8904-45a520b7bd6d

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 72 unchanged lines in 13 files lost coverage.
• Overall coverage decreased (-0.01%) to 56.81%

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Files with Coverage Reduction	New Missed Lines	%
client/history/client.go	2	40.32%
client/history/metricClient.go	2	45.94%
common/task/weightedRoundRobinTaskScheduler.go	2	89.64%
service/history/execution/mutable_state_builder.go	2	69.77%
service/history/handler.go	2	48.32%
service/matching/taskListManager.go	2	74.66%
service/history/queue/timer_gate.go	3	95.83%
service/frontend/workflowHandler.go	4	58.59%
common/task/fifoTaskScheduler.go	5	84.54%
common/persistence/nosql/nosqlExecutionStore.go	9	60.35%

Totals
Change from base Build 0daa053c-e8f1-4f79-9482-b35ead076b5a:	-0.01%
Covered Lines:	81479
Relevant Lines:	143424

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💛 - Coveralls