EC 2.1.3 release notes (#3080)

* EC 2.1.3 release notes

* update ec config examples

---------

Co-authored-by: Paige Calvert <[email protected]>

Author: ajp-io

docs/partials/embedded-cluster/_ec-config.mdx

@@ -2,5 +2,5 @@
 apiVersion: embeddedcluster.replicated.com/v1beta1
 kind: Config
 spec:
-  version: 1.21.0+k8s-1.30
+  version: 2.1.3+k8s-1.30
 ```

docs/partials/getting-started/_gitea-ec-config.mdx

@@ -2,5 +2,5 @@
 apiVersion: embeddedcluster.replicated.com/v1beta1
 kind: Config
 spec:
-  version: 1.21.0+k8s-1.30
+  version: 2.1.3+k8s-1.30
 ```

docs/reference/embedded-config.mdx

@@ -24,7 +24,7 @@ For additional property-specific limitations, see the sections below.
 apiVersion: embeddedcluster.replicated.com/v1beta1
 kind: Config
 spec:
-  version: 1.21.0+k8s-1.30
+  version: 2.1.3+k8s-1.30
   roles:
     controller:
       name: management

docs/release-notes/rn-embedded-cluster.md

@@ -10,6 +10,33 @@ This topic contains release notes for the [Replicated Embedded Cluster](/vendor/
 
 Additionally, these release notes list the versions of Kubernetes and Replicated KOTS that are available with each version of Embedded Cluster.
 
+## 2.1.3
+
+Released on February 19, 2025
+
+<table>
+  <tr>
+    <th>Version</th>
+    <td id="center">2.1.3+k8s-1.30</td>
+    <td id="center">2.1.3+k8s-1.29</td>
+  </tr>
+  <tr>
+    <th>Kubernetes Version</th>
+    <td id="center">1.30.9</td>
+    <td id="center">1.29.13</td>
+  </tr>
+  <tr>
+    <th>KOTS Version</th>
+    <td id="center" colspan="2">1.124.4</td>
+  </tr>
+</table>
+
+### Improvements {#improvements-2-1-3}
+* The following kernel parameters are configured automatically: `fs.inotify.max_user_instances = 1024` and `fs.inotify.max_user_watches = 65536`.
+* Adds a preflight check to ensure the following kernel parameters are set correctly: `fs.inotify.max_user_instances = 1024` and `fs.inotify.max_user_watches = 65536`.
+* Surfaces better error messages during the installation if the node is not ready.
+* Adds a preflight check to verify execute permissions on the data directory and its parent directories. This prevents installation issues, including etcd permissions issues.
+
 ## 2.1.2
 
 Released on February 19, 2025
@@ -87,7 +114,7 @@ Released on February 14, 2025
 ### Improvements {#improvements-2-1-0}
 * The following kernel parameters are configured automatically: `net.ipv4.conf.all.forwarding = 1`, `net.ipv4.conf.default.forwarding = 1`, `net.bridge.bridge-nf-call-iptables = 1`, `net.ipv4.conf.default.rp_filter = 0`, and `net.ipv4.conf.all.rp_filter = 0`.
 * The following kernel modules are configured automatically: `overlay`, `ip_tables`, `br_netfilter`, and `nf_conntrack`.
-* Adds a preflight check to ensure the values were set correctly for the `net.ipv4.conf.all.forwarding = 1`, `net.ipv4.conf.default.forwarding = 1`, `net.bridge.bridge-nf-call-iptables = 1`, `net.ipv4.conf.default.rp_filter = 0`, and `net.ipv4.conf.all.rp_filter = 0` kernel parameters.
+* Adds a preflight check to ensure the following kernel parameters are set correctly: `net.ipv4.conf.all.forwarding = 1`, `net.ipv4.conf.default.forwarding = 1`, `net.bridge.bridge-nf-call-iptables = 1`, `net.ipv4.conf.default.rp_filter = 0`, and `net.ipv4.conf.all.rp_filter = 0`.
 * Adds a preflight check to ensure the `overlay`, `ip_tables`, `br_netfilter`, and `nf_conntrack` kernel modules were configured correctly.
 * Adds a preflight check to ensure a node's IP address is not within the Pod and Service CIDR ranges that will be used by Kubernetes. If a conflict exists, a different CIDR block can be specified with `--cidr` or a different network interface can be specified with `--network-interface`.
 * Adds a preflight check to ensure that SELinux is not running in enforcing mode.