Added ssh configurations to YANG model

.gitmodules

@@ -108,7 +108,8 @@
  url = https://github.com/sonic-net/sonic-dhcp-relay.git
 [submodule "src/sonic-host-services"]
  path = src/sonic-host-services
- url = https://github.com/sonic-net/sonic-host-services
+ url = https://github.com/ycoheNvidia/sonic-host-services
+ branch = sonic-host-services-ycoheNvidia-ssh_config
 [submodule "src/sonic-gnmi"]
  path = src/sonic-gnmi
  url = https://github.com/sonic-net/sonic-gnmi.git

files/build_templates/init_cfg.json.j2

@@ -133,5 +133,12 @@
  "digits_class": "true",
  "special_class": "true"
  }
+ },
+ "SSH_SERVER": {
+ "POLICIES":{
+ "authentication_retries": "6",
+ "login_timeout": "120",
+ "ports": "22"
+ }
  }
 }

src/sonic-yang-models/yang-models/sonic-ssh-server.yang

@@ -0,0 +1,45 @@
+
+//filename: sonic-ssh_server.yang
+module sonic-sshg {
+ yang-version 1.1;
+ namespace "http://github.com/Azure/sonic-ssh_global";
+ prefix sshg;
+
+ description "SSH SERVER CONFIG YANG Module for SONiC OS";
+
+ revision 2022-08-29 {
+ description
+ "First Revision";
+ }
+
+ container sonic-ssh_server {
+ container SSH_SERVER {
+ description "SSH SERVER CONFIG part of config_db.json";
+ container POLICIES {
+ leaf authentication_retries {
+ description "number of login attepmts";
+ default 6;
+ type uint8 {
+ range 1..100;
+ }
+ }
+ leaf login_timeout {
+ description "login timeout (secs unit)";
+ default 120;
+ type uint32 {
+ range 1..600;
+ }
+ }
+ leaf ports {
+ description "ssh port numbers";
+ type string {
+ pattern '[0-9]+(,[0-9]+)*' {
+ error-message "Invalid port numbers value";
+ error-app-tag ssh-server-ports-invalid-value;
+ }
+ }
+ }
+ }/*container policies */
+ } /* container SSH_SERVER */
+ }/* container sonic-sshg */
+}/* end of module sonic-sshg */