Backport of values.yaml - set default connect inject init cpu resourc…

…e limits to `null` to increase service registration times into release/0.49.x (#2019)

* backport of commit 7a99af0

---------

Co-authored-by: David Yu <dyu@hashicorp.com>

.changelog/2008.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+helm: Set default `limits.cpu` resource setting to `null` for `consul-connect-inject-init` container to speed up registration times when onboarding services onto the mesh during the init container lifecycle. 
+```

charts/consul/test/unit/connect-inject-deployment.bats

@@ -1280,10 +1280,7 @@ EOF
   local actual=$(echo "$cmd" |
     yq 'any(contains("-init-container-memory-limit=150Mi"))' | tee /dev/stderr)
   [ "${actual}" = "true" ]
-
-  local actual=$(echo "$cmd" |
-    yq 'any(contains("-init-container-cpu-limit=50m"))' | tee /dev/stderr)
-  [ "${actual}" = "true" ]
+
 }
 
 @test "connectInject/Deployment: can set init container resources" {

charts/consul/values.yaml

@@ -2137,15 +2137,22 @@ connectInject:
     # @type: string
     annotations: null
 
-  # The resource settings for connect inject pods.
-  # @recurse: false
+  # The resource settings for connect inject pods. The defaults, are optimized for getting started worklows on developer deployments. The settings should be tweaked for production deployments. 
   # @type: map
   resources:
     requests:
+      # Recommended production default: 500Mi
+      # @type: string
       memory: "50Mi"
+      # Recommended production default: 250m
+      # @type: string
       cpu: "50m"
     limits:
+      # Recommended production default: 500Mi
+      # @type: string
       memory: "50Mi"
+      # Recommended production default: 250m
+      # @type: string
       cpu: "50m"
 
   # Sets the failurePolicy for the mutating webhook. By default this will cause pods not part of the consul installation to fail scheduling while the webhook
@@ -2313,31 +2320,40 @@ connectInject:
     # @type: map
     resources:
       requests:
-        # Recommended default: 100Mi
+        # Recommended production default: 100Mi
         # @type: string
         memory: null
-        # Recommended default: 100m
+        # Recommended production default: 100m
         # @type: string
         cpu: null
       limits:
-        # Recommended default: 100Mi
+        # Recommended production default: 100Mi
         # @type: string
         memory: null
-        # Recommended default: 100m
+        # Recommended production default: 100m
         # @type: string
         cpu: null
 
-  # The resource settings for the Connect injected init container.
-  # @recurse: false
+  # The resource settings for the Connect injected init container. If null, the resources
+  # won't be set for the initContainer. The defaults are optimized for developer instances of 
+  # Kubernetes, however they should be tweaked with the recommended defaults as shown below to speed up service registration times. 
   # @type: map
   initContainer:
     resources:
       requests:
+        # Recommended production default: 150Mi
+        # @type: string
         memory: "25Mi"
+        # Recommended production default: 250m
+        # @type: string
         cpu: "50m"
       limits:
+        # Recommended production default: 150Mi
+        # @type: string
         memory: "150Mi"
-        cpu: "50m"
+        # Recommended production default: 500m
+        # @type: string
+        cpu: null
 
 # Controller handles config entry custom resources.
 # Requires consul >= 1.8.4.