devapp, cmd/gopherbot: increase RAM in k8s config

Empirically, the maintner client uses just under 2 GB RAM while running.
However, during a maintner.ErrSplit situation, the RAM need spikes
beyond 2 GB, causing the apps to crash due to a hard limit of 2 GB RAM.
Increasing it to 4 GB should let them run crash-free during net splits.

Change-Id: I79deec74c0ddac4afb9e2ffb2ab19747a06bd53a
Reviewed-on: https://go-review.googlesource.com/128361
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/cmd/gopherbot/deployment-prod.yaml b/cmd/gopherbot/deployment-prod.yaml
index 844b78f..bd69440 100644
--- a/cmd/gopherbot/deployment-prod.yaml
+++ b/cmd/gopherbot/deployment-prod.yaml
@@ -29,6 +29,6 @@
         resources:
           requests:
             cpu: "1"
-            memory: "1Gi"
-          limits:
             memory: "2Gi"
+          limits:
+            memory: "4Gi"
diff --git a/devapp/deployment-prod.yaml b/devapp/deployment-prod.yaml
index cb11c8f..95df7ab 100644
--- a/devapp/deployment-prod.yaml
+++ b/devapp/deployment-prod.yaml
@@ -27,6 +27,6 @@
         resources:
           requests:
             cpu: "1"
-            memory: "1Gi"
-          limits:
             memory: "2Gi"
+          limits:
+            memory: "4Gi"
diff --git a/devapp/deployment-staging.yaml b/devapp/deployment-staging.yaml
index 6ccd450..eee9e4f 100644
--- a/devapp/deployment-staging.yaml
+++ b/devapp/deployment-staging.yaml
@@ -27,6 +27,6 @@
         resources:
           requests:
             cpu: "1"
-            memory: "1Gi"
-          limits:
             memory: "2Gi"
+          limits:
+            memory: "4Gi"