fix(app): remove canUndo function from environment variables [EE-6232] (#10961)

Co-authored-by: testa113 <testa113>

app/react/kubernetes/applications/components/EnvironmentVariablesFormSection/EnvironmentVariablesFormSection.tsx

@@ -0,0 +1,30 @@
+import { FormSection } from '@@/form-components/FormSection';
+import {
+  EnvVarValues,
+  EnvironmentVariablesFieldset,
+} from '@@/form-components/EnvironmentVariablesFieldset';
+import { ArrayError } from '@@/form-components/InputList/InputList';
+
+type Props = {
+  values: EnvVarValues;
+  onChange(value: EnvVarValues): void;
+  errors?: ArrayError<EnvVarValues>;
+};
+
+export function EnvironmentVariablesFormSection({
+  values,
+  onChange,
+  errors,
+}: Props) {
+  return (
+    <FormSection title="Environment variables" titleSize="sm">
+      <div className="mb-4">
+        <EnvironmentVariablesFieldset
+          values={values}
+          onChange={onChange}
+          errors={errors}
+        />
+      </div>
+    </FormSection>
+  );
+}

app/react/kubernetes/applications/components/EnvironmentVariablesFormSection/kubeEnvVarValidationSchema.ts

@@ -0,0 +1,27 @@
+import { SchemaOf, array, bool, object, string } from 'yup';
+
+import { EnvVar } from '@@/form-components/EnvironmentVariablesFieldset/types';
+import { buildUniquenessTest } from '@@/form-components/validate-unique';
+
+export function kubeEnvVarValidationSchema(): SchemaOf<EnvVar[]> {
+  return array(
+    object({
+      name: string()
+        .required('Environment variable name is required')
+        .matches(
+          /^[a-zA-Z][a-zA-Z0-9_.-]*$/,
+          `This field must consist of alphabetic characters, digits, '_', '-', or '.', and must not start with a digit (e.g. 'my.env-name', or 'MY_ENV.NAME', or 'MyEnvName1'`
+        ),
+      value: string().default(''),
+      needsDeletion: bool().default(false),
+      isNew: bool().default(false),
+    })
+  ).test(
+    'unique',
+    'This environment variable is already defined',
+    buildUniquenessTest(
+      () => 'This environment variable is already defined',
+      'name'
+    )
+  );
+}