add real-time infrastructure (#137)

* setup infra for pusher service

* setup client sdk for pusher service

* fix: ping parse failure

* fix: send pong back to client

avoid disconnections every 2.5 minutes

* increase replicas

* feat: show presence and compose indicator

go/skaffold.yaml

@@ -90,3 +90,38 @@ profiles:
       - k8s/prod/particleprocessorworker.yaml
     deploy:
       kubectl: {}
+---
+apiVersion: skaffold/v4beta11
+kind: Config
+metadata:
+  name: pusher
+build:
+  local: {}
+  tagPolicy:
+    gitCommit:
+      variant: AbbrevCommitSha
+profiles:
+  - name: dev
+    build:
+      artifacts:
+      - image: pusher
+        context: .
+        docker:
+          dockerfile: Dockerfile.pusherservice
+    manifests:
+      rawYaml:
+      - k8s/dev/pusher.yaml
+    deploy:
+      kubectl: {}
+  - name: prod
+    build:
+      artifacts:
+      - image: pusher
+        context: .
+        docker:
+          dockerfile: Dockerfile.pusherservice
+    manifests:
+      rawYaml:
+      - k8s/prod/pusher.yaml
+    deploy:
+      kubectl: {}