Mark Mandel markmandel

Problem

Our current support for low dependency, cross compilation for the C++ SDK is very poor. Things work on Linux, because of make and not much else. We also have no tests.

Right now, the C++ SDK is built on top of gRPC, which may be adding too many dependencies to be used in a valuable way across platforms?

Code is here: https://github.com/GoogleCloudPlatform/agones/tree/master/sdks/cpp

Requirements

Review the current state of cross complication and dependency with gRPC.

Problem

It is desirable to autoscale the Kubernetes cluster to account for increases in player count, and need for more game servers, in a way that will work across cloud
There currently exists a generic cluster autoscaler project -- but it is mostly targeted at stateless workloads

Design

The overall design to use the open source cluster autoscaler revolves around using the cluster autoscaler to remove empty nodes as they appear, but specifically disallows the autoscaler from attempting to evict GameServer Pods in an attempt to move them to a new Node.

Problem

To build cluster autoscalers, we need a way to declare the state how many nodes there should be in a cluster -- that is GameServer aware, and does not shut down nodes that have GameServers on them that are Allocated.
Current auto scalers will not work, as they are built for stateless solutions - and thus will terminate nodes arbitrarily
This solution should be designed, such that it can be used on multiple clouds - as well as can be independently extended for those that run their own Kubernetes clusters on their own infrastructure.

Design

To control the number of nodes, we can use a CRD, and controller much as we would anything else.

reco4j.properties

This is the file that defines how reco4j builds recommendations between items in your neo4j database, when using reco4j as a plugin to neo4j.

Configuration Options

Property Name	Default	Description
`recommenderType`	`1` (Collaborative Filtering)	The type of recommendation engine to use. `1` Collaborative Filtering, `2` Matrix Factorization

	This file contains any messages produced by compilers while
	running configure, to aid debugging if configure makes a mistake.

	It was created by Protocol Buffers configure 3.21.5, which was
	generated by GNU Autoconf 2.71. Invocation command line was

	$ /root/.cargo/registry/src/github.com-1ecc6299db9ec823/protobuf-src-1.1.0+21.5/protobuf/configure --prefix=/workspace/target/build-image/release/build/protobuf-src-a2a5be1d214dd3cd/out/install --disable-shared --enable-static --disable-maintainer-mode

	## --------- ##
	## Platform. ##

	markmandel1:build:% make build-sdks <pull/1144>
	make run-sdk-command COMMAND=build SDK_FOLDER=go
	make[1]: Entering directory '/usr/local/google/home/markmandel/workspace/agones/src/agones.dev/agones/build'
	cd build-sdk-images/; \
	if [ "go" != "tool" ] && [ -f go/build.sh ] ; then \
	cd - ; \
	make ensure-build-sdk-image SDK_FOLDER=go ; \
	docker run --rm -v /usr/local/google/home/markmandel/workspace/agones/src/agones.dev/agones/build//.config/gcloud:/root/.config/gcloud -v ~/.kube/:/root/.kube -v ~/.helm:/root/.helm -v /usr/local/google/home/markmandel/workspace/agones/src/agones.dev/agones:/go/src/agones.dev/agones -v /usr/local/google/home/markmandel/workspace/agones/src/agones.dev/agones/build//.gomod:/go/pkg/mod -v /usr/local/google/home/markmandel/workspace/agones/src/agones.dev/agones/build//.go

	// Copyright 2017 Google Inc. All Rights Reserved.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,

	DKMS make.log for psmouse-focaltech-dkms for kernel 3.13.0-37-generic (x86_64)
	Sun Oct 26 17:36:59 AEDT 2014
	make: Entering directory `/usr/src/linux-headers-3.13.0-37-generic'
	CC [M] /var/lib/dkms/psmouse/focaltech-dkms/build/src/psmouse-base.o
	/var/lib/dkms/psmouse/focaltech-dkms/build/src/psmouse-base.c: In function ‘psmouse_matches_pnp_id’:
	/var/lib/dkms/psmouse/focaltech-dkms/build/src/psmouse-base.c:473:36: error: ‘struct serio’ has no member named ‘firmware_id’
	if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4))
	^
	/var/lib/dkms/psmouse/focaltech-dkms/build/src/psmouse-base.c:475:36: error: ‘struct serio’ has no member named ‘firmware_id’
	if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i]))

	FORMAT: 1A

	# Test API

	## Items [/items{?filter}]

	### List all Items [GET]

	+ Parameters

	<!---
	Copyright 2012 Mark Mandel

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software