diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/core/Utils.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/core/Utils.kt
index ff06374..8093607 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/core/Utils.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/core/Utils.kt
@@ -16,7 +16,7 @@ import java.net.InetAddress
  */
 fun getCallingMethodName(): String? {
     val offsetVal = 1
-    val exclude = arrayOf("def", "record", "invoke", "invoke0", "handle", "def\$default", "addResultToEval", "handle\$default")
+    val exclude = arrayOf("task", "def", "record", "invoke", "invoke0", "handle", "task\$default", "def\$default", "addResultToEval", "handle\$default")
     // suffixes are also ignored as method names but will be added as suffix in the evaluation results
     val suffixes = arrayOf("optional", "requireAll", "requireLast", "inContainer")
 
@@ -45,15 +45,25 @@ fun String.escapeControlChars(): String = replace("\r", "\\r").replace("\n", "\\
 fun String.escapeBackslash(): String = replace("\\", "\\\\")
 fun String.escapeDoubleQuote(): String = replace("\"", "\\\"")
 fun String.escapeSingleQuote(): String = replace("'", "\'")
+fun String.escapeBacktick(): String = replace("`", "\\`")
+fun String.escapeDollar(): String = replace("$", "\\$")
 fun String.escapeSingleQuoteForShell(): String = replace("'", "'\"'\"'")
 fun String.escapeProcentForPrintf(): String = replace("%", "%%")
 fun String.endingWithFileSeparator(): String = if (length > 0 && (last() != fileSeparatorChar())) this + fileSeparator() else this
 
 
-// see https://www.shellscript.sh/escape.html
 fun String.escapeAndEncloseByDoubleQuoteForShell(): String {
-    return "\"" + this.escapeBackslash().replace("`", "\\`").escapeDoubleQuote().replace("$", "\\$") + "\""
+    return "\"" + this.escapeForShell() + "\""
 }
+fun String.escapeForShell(): String {
+    // see https://www.shellscript.sh/escape.html
+    return this.escapeBackslash().escapeBacktick().escapeDoubleQuote().escapeDollar()
+}
+internal fun echoCommandForText(text: String): String {
+    return "echo -n ${text.escapeAndEncloseByDoubleQuoteForShell()}"
+}
+
+
 fun fileSeparator(): String = File.separator
 fun fileSeparatorChar(): Char = File.separatorChar
 fun newline(): String = System.getProperty("line.separator")
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/K3s.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/K3s.kt
index bce183d..4a817ba 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/K3s.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/K3s.kt
@@ -2,7 +2,10 @@ package org.domaindrivenarchitecture.provs.extensions.server_software.k3s
 
 import org.domaindrivenarchitecture.provs.core.Prov
 import org.domaindrivenarchitecture.provs.core.ProvResult
+import org.domaindrivenarchitecture.provs.core.echoCommandForText
 import org.domaindrivenarchitecture.provs.core.remote
+import org.domaindrivenarchitecture.provs.extensions.server_software.k3s.apple.appleConfig
+import org.domaindrivenarchitecture.provs.extensions.server_software.k3s.apple.checkAppleService
 import org.domaindrivenarchitecture.provs.ubuntu.install.base.aptInstall
 import org.domaindrivenarchitecture.provs.ubuntu.secret.secretSources.PromptSecretSource
 
@@ -12,7 +15,7 @@ import org.domaindrivenarchitecture.provs.ubuntu.secret.secretSources.PromptSecr
  * If docker is true, then k3s will be installed with docker option and also docker will be installed (may conflict if docker is already existing).
  * If host is specified, then tls (if configured) also applies to host.
  */
-fun Prov.installK3sServer(docker: Boolean = false, host: String? = null) = def {
+fun Prov.installK3sServer(docker: Boolean = false, host: String? = null) = task {
     val tls = host?.let { "INSTALL_K3S_EXEC=\"--tls-san ${it}\"" } ?: ""
     aptInstall("curl")
     if (!chk("k3s -version")) {
@@ -31,25 +34,35 @@ fun Prov.installK3sServer(docker: Boolean = false, host: String? = null) = def {
 }
 
 
-fun Prov.uninstallK3sServer() = def {
+fun Prov.uninstallK3sServer() = task {
     cmd("sudo /usr/local/bin/k3s-uninstall.sh")
 }
 
 
+fun Prov.applyConfig(configAsYaml: String) = task {
+    cmd(echoCommandForText(configAsYaml) + " | sudo k3s kubectl apply -f -")
+}
+
+
 fun main() {
 
-    val host = "192.168.56.123"
-    val remoteUser = "remoteUsername"
+    val host = "192.168.56.141"
+    val remoteUser = "usr"
     val passwordK3sUser = PromptSecretSource("Enter Password").secret()
 
     remote(host, remoteUser, passwordK3sUser).def {
+//    local().task {
 
-        val result = installK3sServer()
+        installK3sServer()
 
         // print pods for information purpose
         println(cmd("sudo k3s kubectl get pods --all-namespaces").out)
 
-        // return result of installation
-        result
+        applyConfig(appleConfig())
+
+        // print pods for information purpose
+        println(cmd("sudo k3s kubectl get services").out)
+
+        checkAppleService("sudo k3s kubectl")
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/apple/Apple.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/apple/Apple.kt
new file mode 100644
index 0000000..ec869c8
--- /dev/null
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/extensions/server_software/k3s/apple/Apple.kt
@@ -0,0 +1,48 @@
+package org.domaindrivenarchitecture.provs.extensions.server_software.k3s.apple
+
+import org.domaindrivenarchitecture.provs.core.Prov
+import org.domaindrivenarchitecture.provs.core.ProvResult
+
+
+fun Prov.checkAppleService(kubeCtlCmd: String = "kubectl") = task {
+    val ip = cmd(kubeCtlCmd + " get svc apple-service -o jsonpath=\"{.spec.clusterIP}\"\n").out
+    val port = cmd(kubeCtlCmd + " get svc apple-service -o jsonpath=\"{.spec.ports[0].port}\"\n").out
+    if (ip == null || port == null) {
+        return@task ProvResult(false)
+    }
+    val apple = cmd("curl -m 30 $ip:$port").out
+    if ("apple" == apple) {
+        ProvResult(true)
+    } else {
+        ProvResult(false, err = "Apple service did not return \"apple\" but instead: " + apple)
+    }
+}
+
+
+fun appleConfig() =
+    """
+kind: Pod
+apiVersion: v1
+metadata:
+  name: apple-app
+  labels:
+    app: apple
+spec:
+  containers:
+    - name: apple-app
+      image: hashicorp/http-echo
+      args:
+        - "-text=apple"
+
+---
+
+kind: Service
+apiVersion: v1
+metadata:
+  name: apple-service
+spec:
+  selector:
+    app: apple
+  ports:
+    - port: 5678 # Default port for image
+    """
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/git/base/Git.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/git/base/Git.kt
index 07ca8ec..d93bc8a 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/git/base/Git.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/git/base/Git.kt
@@ -4,7 +4,7 @@ import org.domaindrivenarchitecture.provs.core.Prov
 import org.domaindrivenarchitecture.provs.core.ProvResult
 import org.domaindrivenarchitecture.provs.ubuntu.filesystem.base.*
 import org.domaindrivenarchitecture.provs.ubuntu.keys.base.isHostKnown
-import org.domaindrivenarchitecture.provs.ubuntu.utils.printToShell
+import org.domaindrivenarchitecture.provs.core.echoCommandForText
 import java.io.File
 
 val knownHostsFile = "~/.ssh/known_hosts"
@@ -93,7 +93,7 @@ private fun Prov.trustHost(host: String, fingerprintsOfKeysToBeAdded: Set<String
                     err = "Fingerprint ($fingerprintToBeAdded) could not be found in actual fingerprints: $actualFingerprints"
                 )
             }
-            cmd(printToShell(actualKeys.get(indexOfKeyFound)) + " >> $knownHostsFile")
+            cmd(echoCommandForText(actualKeys.get(indexOfKeyFound)) + " >> $knownHostsFile")
         }
         ProvResult(true)
     }
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/keys/base/Gpg.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/keys/base/Gpg.kt
index 701ffd8..67b49c8 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/keys/base/Gpg.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/keys/base/Gpg.kt
@@ -8,7 +8,7 @@ import org.domaindrivenarchitecture.provs.ubuntu.filesystem.base.createSecretFil
 import org.domaindrivenarchitecture.provs.ubuntu.filesystem.base.dirExists
 import org.domaindrivenarchitecture.provs.ubuntu.install.base.aptInstall
 import org.domaindrivenarchitecture.provs.ubuntu.keys.KeyPair
-import org.domaindrivenarchitecture.provs.ubuntu.utils.printToShell
+import org.domaindrivenarchitecture.provs.core.echoCommandForText
 
 
 /**
@@ -69,6 +69,6 @@ private fun Prov.gpgKeysInstalled(fingerprint: String): Boolean  {
 
 fun Prov.gpgFingerprint(pubKey: String): String? {
     val result =
-        cmdNoLog(" " + printToShell(pubKey) + " | gpg --with-colons --import-options show-only --import --fingerprint")
+        cmdNoLog(" " + echoCommandForText(pubKey) + " | gpg --with-colons --import-options show-only --import --fingerprint")
     return result.out?.let { """^fpr:*([A-Z0-9]*):$""".toRegex(RegexOption.MULTILINE).find(it)?.groupValues?.get(1) }
 }
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/Utils.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/Utils.kt
deleted file mode 100644
index bad65f7..0000000
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/Utils.kt
+++ /dev/null
@@ -1,11 +0,0 @@
-package org.domaindrivenarchitecture.provs.ubuntu.utils
-
-import org.domaindrivenarchitecture.provs.core.escapeBackslash
-import org.domaindrivenarchitecture.provs.core.escapeDoubleQuote
-
-
-// todo: investigate to use .escapeAndEncloseByDoubleQuoteForShell() or similar instead (?)
-internal fun printToShell(text: String): String {
-    return "echo -n \"${text.escapeBackslash().escapeDoubleQuote()}\""
-}
-
diff --git a/src/test/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/UtilsKtTest.kt b/src/test/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/UtilsKtTest.kt
index 8c39d98..89e87cf 100644
--- a/src/test/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/UtilsKtTest.kt
+++ b/src/test/kotlin/org/domaindrivenarchitecture/provs/ubuntu/utils/UtilsKtTest.kt
@@ -1,6 +1,7 @@
 package org.domaindrivenarchitecture.provs.ubuntu.utils
 
 import org.domaindrivenarchitecture.provs.core.Prov
+import org.domaindrivenarchitecture.provs.core.echoCommandForText
 import org.domaindrivenarchitecture.provs.test.tags.ContainerTest
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
@@ -14,8 +15,8 @@ internal class UtilsKtTest {
         val a = Prov.defaultInstance()
 
         // when
-        val testString = "test if newline \n and apostrophe's ' \" and special chars !§$%[]\\ äöüß are handled correctly"
-        val res = a.cmd(printToShell(testString)).out
+        val testString = "test if newline \n and apostrophe's ' \" and special chars !§$%[]\\ äöüß \$variable are handled correctly"
+        val res = a.cmd(echoCommandForText(testString)).out
 
         // then
         assertEquals(testString, res)