diff --git a/app/kubernetes/ingress/converter.js b/app/kubernetes/ingress/converter.js
index 8f7097f99..e3ac6112d 100644
--- a/app/kubernetes/ingress/converter.js
+++ b/app/kubernetes/ingress/converter.js
@@ -19,10 +19,10 @@ export class KubernetesIngressConverter {
         : _.map(rule.http.paths, (path) => {
             const ingRule = new KubernetesIngressRule();
             ingRule.IngressName = data.metadata.name;
-            ingRule.ServiceName = path.backend.serviceName;
+            ingRule.ServiceName = path.backend.service.name;
             ingRule.Host = rule.host || '';
             ingRule.IP = data.status.loadBalancer.ingress ? data.status.loadBalancer.ingress[0].ip : undefined;
-            ingRule.Port = path.backend.servicePort;
+            ingRule.Port = path.backend.service.port.number;
             ingRule.Path = path.path;
             return ingRule;
           });
@@ -151,8 +151,8 @@ export class KubernetesIngressConverter {
         rule.http.paths = _.map(paths, (p) => {
           const path = new KubernetesIngressRulePathCreatePayload();
           path.path = p.Path;
-          path.backend.serviceName = p.ServiceName;
-          path.backend.servicePort = p.Port;
+          path.backend.service.name = p.ServiceName;
+          path.backend.service.port.number = p.Port;
           return path;
         });
         hostsWithRules.push(host);
@@ -173,7 +173,7 @@ export class KubernetesIngressConverter {
       res.spec.rules = [];
       _.forEach(data.Hosts, (host) => {
         if (!host.NeedsDeletion) {
-          res.spec.rules.push({ host: host.Host });
+          res.spec.rules.push({ host: host.Host || host });
         }
       });
     } else {
diff --git a/app/kubernetes/ingress/payloads.js b/app/kubernetes/ingress/payloads.js
index d1c6279ec..f5411b7c0 100644
--- a/app/kubernetes/ingress/payloads.js
+++ b/app/kubernetes/ingress/payloads.js
@@ -20,10 +20,15 @@ export function KubernetesIngressRuleCreatePayload() {
 
 export function KubernetesIngressRulePathCreatePayload() {
   return {
-    backend: {
-      serviceName: '',
-      servicePort: 0,
-    },
     path: '',
+    pathType: 'ImplementationSpecific',
+    backend: {
+      service: {
+        name: '',
+        port: {
+          number: 0,
+        },
+      },
+    },
   };
 }
diff --git a/app/kubernetes/ingress/rest.js b/app/kubernetes/ingress/rest.js
index df335653b..3bdeaf10f 100644
--- a/app/kubernetes/ingress/rest.js
+++ b/app/kubernetes/ingress/rest.js
@@ -5,7 +5,7 @@ angular.module('portainer.kubernetes').factory('KubernetesIngresses', factory);
 function factory($resource, API_ENDPOINT_ENDPOINTS, EndpointProvider) {
   'use strict';
   return function (namespace) {
-    const url = `${API_ENDPOINT_ENDPOINTS}/:endpointId/kubernetes/apis/networking.k8s.io/v1beta1${namespace ? '/namespaces/:namespace' : ''}/ingresses/:id/:action`;
+    const url = `${API_ENDPOINT_ENDPOINTS}/:endpointId/kubernetes/apis/networking.k8s.io/v1${namespace ? '/namespaces/:namespace' : ''}/ingresses/:id/:action`;
     return $resource(
       url,
       {
diff --git a/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.controller.js b/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.controller.js
index 2138e4f57..30d61e8d3 100644
--- a/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.controller.js
+++ b/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.controller.js
@@ -1,12 +1,4 @@
-import { KEY_REGEX, VALUE_REGEX } from '@/portainer/helpers/env-vars';
-
 class EnvironmentVariablesSimpleModeItemController {
-  /* @ngInject */
-  constructor() {
-    this.KEY_REGEX = KEY_REGEX;
-    this.VALUE_REGEX = VALUE_REGEX;
-  }
-
   onChangeName(name) {
     const fieldIsInvalid = typeof name === 'undefined';
     if (fieldIsInvalid) {
diff --git a/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.html b/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.html
index c53af0699..27ace7bc2 100644
--- a/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.html
+++ b/app/portainer/components/environment-variables-panel/environment-variables-simple-mode/environment-variables-simple-mode-item/environment-variables-simple-mode-item.html
@@ -9,7 +9,6 @@
         placeholder="e.g. FOO"
         ng-model="$ctrl.variable.name"
         ng-disabled="$ctrl.variable.added"
-        ng-pattern="$ctrl.KEY_REGEX"
         ng-change="$ctrl.onChangeName($ctrl.variable.name)"
         required
       />
@@ -36,7 +35,6 @@
           ng-model="$ctrl.variable.value"
           placeholder="e.g. bar"
           ng-trim="false"
-          ng-pattern="$ctrl.VALUE_REGEX"
           name="value"
           ng-change="$ctrl.onChangeValue($ctrl.variable.value)"
         />
diff --git a/app/portainer/helpers/env-vars.js b/app/portainer/helpers/env-vars.js
index 972fc5ebd..c55c448ea 100644
--- a/app/portainer/helpers/env-vars.js
+++ b/app/portainer/helpers/env-vars.js
@@ -1,7 +1,6 @@
 import _ from 'lodash-es';
 
-export const KEY_REGEX = /[a-zA-Z]([-_a-zA-Z0-9]*[a-zA-Z0-9])?/.source;
-
+export const KEY_REGEX = /(.+)/.source;
 export const VALUE_REGEX = /(.*)?/.source;
 
 const KEY_VALUE_REGEX = new RegExp(`^(${KEY_REGEX})\\s*=(${VALUE_REGEX})$`);
@@ -16,7 +15,7 @@ export function parseDotEnvFile(src) {
   return parseArrayOfStrings(
     _.compact(src.split(NEWLINES_REGEX))
       .map((v) => v.trim())
-      .filter((v) => !v.startsWith('#'))
+      .filter((v) => !v.startsWith('#') && v !== '')
   );
 }
 
@@ -40,7 +39,7 @@ export function parseArrayOfStrings(array) {
 
       const parsedKeyValArr = variableString.trim().match(KEY_VALUE_REGEX);
       if (parsedKeyValArr != null && parsedKeyValArr.length > 4) {
-        return { name: parsedKeyValArr[1], value: parsedKeyValArr[3] || '' };
+        return { name: parsedKeyValArr[1].trim(), value: parsedKeyValArr[3].trim() || '' };
       }
     })
   );