Merge pull request #3212 from replicatedhq/121599

HOLD FOR RELEASE: EC respects env vars for proxy installs

Author: paigecalvert

docs/partials/embedded-cluster/_proxy-env-vars.mdx

@@ -0,0 +1 @@
+Embedded Cluster 2.4.0 and later also respects the `http_proxy`, `https_proxy`, and `no_proxy` environment variables for installing behind a proxy. When set, the `--http-proxy`, `--https-proxy`, `--no-proxy` flags take precedence over environment variables. Additionally, lowercase environment variables (`http_proxy`) take precedence over uppercase (`HTTP_PROXY`).

docs/reference/embedded-cluster-install.mdx

@@ -1,6 +1,6 @@
 import ProxyLimitations from "../partials/embedded-cluster/_proxy-install-limitations.mdx"
 import ProxyRequirements from "../partials/embedded-cluster/_proxy-install-reqs.mdx"
-
+import ProxyEnvVars from "../partials/embedded-cluster/_proxy-env-vars.mdx"
 
 # Embedded Cluster Install Command Options
 
@@ -70,6 +70,7 @@ sudo ./APP_SLUG install --license PATH_TO_LICENSE [flags]
      <td>`--http-proxy`</td>
      <td>
         <p>Proxy server to use for HTTP.</p>
+        <ProxyEnvVars/>
         <ProxyRequirements/>
         <ProxyLimitations/>   
      </td>
@@ -78,6 +79,7 @@ sudo ./APP_SLUG install --license PATH_TO_LICENSE [flags]
      <td>`--https-proxy`</td>
      <td>
         <p>Proxy server to use for HTTPS.</p>
+        <ProxyEnvVars/>
         <ProxyRequirements/>
         <ProxyLimitations/>
      </td>
@@ -118,6 +120,7 @@ sudo ./APP_SLUG install --license PATH_TO_LICENSE [flags]
          <li>The CIDR block used for assigning IPs to Kubernetes Pods and Services. By default, the CIDR block is `10.244.0.0/16`. For information about how to change this default, see [Set IP Address Range for Pods and Services](#set-ip-address-range-for-pods-and-services).</li>
        </ul>
        <p>To ensure your application's internal cluster communication is not proxied, use fully qualified domain names like `my-service.my-namespace.svc` or `my-service.my-namespace.svc.cluster.local`.</p>
+       <ProxyEnvVars/>
        <ProxyRequirements/>
        <ProxyLimitations/>
      </td>